Airspan Communications AS4020CT-PCS AS4020 Central Terminal PCS Basestation User Manual

Airspan Communications Limited AS4020 Central Terminal PCS Basestation Users Manual

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AS4000 / AS4020 Base Station

Installation and Commissioning

Release 7.30

iii

Table Of Contents

Installation.............................................................................................................................1

Overview AS4000...........................................................................................................1

Overview AS4020...........................................................................................................3

Preparation ....................................................................................................................4

Rack Installation ................................................................................................................7

Rack Layouts .................................................................................................................7

Rack Layouts ...............................................................................................................11

Rack Installation...........................................................................................................13

DC Power and Alarm Cabling.......................................................................................15

AS4000 AC Rack Cabling and Wiring ..............................................................................20

AC Rack E1 Cabling 75 ohm ........................................................................................20

AC Rack E1 Cabling 120 ohm ......................................................................................25

AC Rack T1 Cabling.....................................................................................................31

PTU to Host Cabling.....................................................................................................33

AC Rack Labeling.........................................................................................................34

Interface Connections...................................................................................................35

BNC Terminations to Coax...........................................................................................38

Type 43 Terminations to Coax......................................................................................39

Access Concentrator Card Installation..........................................................................41

AS4000 CT Shelf Cabling and Wiring...............................................................................45

Central Terminal Rack E1 Cabling 75 ohm ...................................................................45

CT Rack E1 Cabling 120 ohm ......................................................................................49

CT Rack T1 Cabling .....................................................................................................53

Baseband connections between CT and Expansion Racks...........................................56

Expansion Rack Cabling .....................................................................................................57

Central Terminal Expansion Rack Cabling .......................................................................57

75 Ohm Connections .......................................................................................................58

120 Ohm Connections .....................................................................................................58

Antenna Configurations................................................................................................60

Interface Connections...................................................................................................65

CT Rack Labelling........................................................................................................68

BNC Terminations to Coax...........................................................................................69

Type 43 Terminations to Coax......................................................................................70

Central Terminal Card Installation.................................................................................72

AS4020 CT Shelf Installation and Cabling........................................................................80

Shelf Connections........................................................................................................80

AS4020 Shelf Installation upgrade into AS4000 Rack...................................................82

Adding one AS4020 shelf to existing rack.....................................................................85

Adding two AS4020 shelves to existing rack.................................................................86

Adding three AS4020 shelves to existing rack...............................................................87

Adding four AS4020 shelves to existing rack ................................................................88

Adding two AS4020 with two AS4000...........................................................................89

AS4020 Interface Connections .....................................................................................90

Setup and Test....................................................................................................................91

System Testing ............................................................................................................91

AS4000 AC Setup and Test .............................................................................................92

Access Concentrator: Turn-Up and DC measurements.................................................92

Setting Up the Access Concentrator .............................................................................95

Access Concentrator Rack Commissioning Test Results ............................................102

AS4000 CT Setup and Test ...........................................................................................107

Turn-Up and DC measurements.................................................................................107

Commissioning the Central Terminal ..........................................................................109

Measuring Central Terminal TX Power .......................................................................115

Procedure in case of card boot-up failure....................................................................120

Setting RX sensitivity using DACU 2.0-2.3GHz & 3.4-3.6GHz Band............................121

Setting RX Sensitivity without DACU ..........................................................................123

BER Test....................................................................................................................125

Printed Documentation

Setting the System into Service..................................................................................127

AS4020 CT Setup and Test ...........................................................................................128

AS4020 Menu Map.....................................................................................................128

AS4020 error messages.............................................................................................130

Set Traffic/Management Ports....................................................................................131

Set NMS Menu...........................................................................................................132

Set TX Power.............................................................................................................133

Set RX sensitivity using a DACU without Calibrated Coupler ...................................... 137

Connecting the DACU ................................................................................................141

Set RX Sensitivity without a DACU.............................................................................144

Packet System Testing...............................................................................................148

Voice Option Testing..................................................................................................155

Central Terminal Rack Commissioning Test Results...................................................156

General.............................................................................................................................163

Customer Material Repair and Return Procedures......................................................163

Repair and Return Procedure............................................................................................165

Repair Charges.................................................................................................................170

Return & Repair Tag .........................................................................................................171

Packing and Shipment.......................................................................................................173

Specifications.............................................................................................................176

Copyright Information .................................................................................................178

Contact Information ....................................................................................................179

Problems with this Guide............................................................................................180

Document Purpose.....................................................................................................181

Warnings and Cautions ..............................................................................................182

Issue Status ...............................................................................................................184

Glossary............................................................................................................................185

Index.................................................................................................................................189

Installation

Overview AS4000

AS4000 System

The system uses Point-to-Multipoint digital radio links between the individual customer's

premises and the carriers local "point of presence" typically the Local Exchange premises. If

greater flexibility or range is required, the network radio equipment can be located in another

suitable building or wayside cabinet.

Printed Documentation

Installation

Overview AS4020

AS4020 System

The system uses Point-to-Multipoint digital radio links between the individual customer's

premises and the carriers local "point of presence" typically the Local Exchange premises.

If greater flexibility or range is required, the network radio equipment can be located in

another suitable building or wayside cabinet.

Printed Documentation

Preparation

Preparatory Tasks

Installation Tools and Equipment

The following lists of tools and equipment are required to successfully install and test the

AS4000 Access Concentrator Racks.

Required Tools

 Combination Spanners: 8 mm, 13 mm, 17 mm, & 19 mm.

 Spirit Level: 18 inch.

 Pozidrive: No 1 x 75 mm.

 No 2 x 100 mm

 ;No 3 x 150 mm.

 Screwdriver, flat blade: 3 mm x 100 mm.

 Screwdriver, flat blade: 5.5 mm x 100 mm.

 Screwdriver, flat blade: 8 mm x 150 mm.

 Hammer, Ball Pein: 1lb.

 Drill Bits, Masonry: 11 mm, 12 mm, 13 mm.

 Ratchet Crimp Tool for red, blue and yellow insulated crimps.

 Crimp Tool type 6A with VQ dies for co-ax connectors and optionally Type 43

connectors

 Cordless Drill/Driver.

Required Equipment

Description Recommended Model Quantity

1 Digital Multimeter Fluke 77 or similar 1

2 50 ohm Termination 15W Suhner 6515.17.A 2

3 Test Lead for Management Port Airspan proprietary item 1

4 RF Power Meter Amritsu Sitemaster 400A or

Marconi 6970 1

5 Power Sensor Amritsu 560-7N50B or

Marconi 6932

6 Sensor 30dB 5W attenuator for use

with Amiritsu Power Sensor HP8491 N-type 1

7 DA Commissioning Unit and

associated cables Airspan proprietary item 1

Site Readiness

Verify that the site is ready for the installation of the CT Racks.

This preparation will have been covered by a site survey conducted by Airspan Networks

or by a survey form completed by the customer. The survey will include a site plan of the

facility identifying the floor layout, power outlets, distribution boxes, and cabling runways.

A sketch showing the rack support arrangements showing the exact positions of the

mounting points on the rack with dimensions, and typical overhead ironwork provision

should be included.

Inspect the site, and particularly the equipment room, before unloading or unpacking the

equipment to ensure the following:

Installation

 Air conditioning is installed and funtional (if required to maintain room environment).

 Adequate grounding is provided.

 Access to the equipment room will be adequate for normal handling and movement.

 Adequate lighting is available for carrying out the installation.

Any non compliance with acceptable standards should be bought to the customers

attention and resolved before proceeding with the installation.

Power Availability

From the site survey, confirm the location of the fuse position for the negative battery

supply and the return point required for each rack. Also locate the fuse position for the

alarm unit power supply.

Site Earth

Confirm the position of the grounding point using the site survey.

Flooring

Ensure that flooring is substantial enough to support the rack and can provide a secure

fixing.

Cable Trays

Verify that cable trays are installed to provide routing to the proper destinations and are of

adequate strength

Delivery Inspection

Upon taking delivery of the equipment consignment, check that the consignment agrees in

all particulars with the consignment delivery documentation (number of boxes,

descriptions, and the contents of boxes, etc.). Any discrepancy or damage must be

reported immediately to ACC for further instructions. In case of severe damage, do not

accept the consignment from the carrier. See Material Return and Repair document for

further details. The equipment is normally shipped as shown below.

If subsequent to the initial shipment incremental upgrades are made to the system the

equipment will be delivered in packaging of size and type suitable for that shipment.

Unpacking Inspection

The contents of each box must be checked against the relevant part lists provided with the

box, for the correct part numbers and quantities, and for damage. Any shortage or

damaged items must be reported immediately to Airspan Networks International Call

Centre for further instructions at the address given in the Contact Information section of

this manual or:

TELEPHONE: +44 (0) 1895 467 467

FAX: +44 (0) 1895 467472

Email: support@airspan.com

Dispose of all unnecessary packaging in a safe manner according to the

customer’s requirements.

During UK working hours, the Airspan Shipping Department can be contacted at:

Tel:+44 1895 467 444 or +44 1895 467 444

Fax:+44 1895 467 438

Printed Documentation

Note: It is recommended that one package carton of each type is retained should it be

required to return any faulty or damaged items for repair.

Installation

Rack Installation

Rack Layouts

AS4000 Racks

AS4000 Central Terminal and Access Concentrator Racks are produced with the following

layouts:

Access Concentrator

 One DA Access Concentrator Shelf and a Fuse and Alarm Panel

 Two Access Concentrator Shelves and a Fuse and Alarm Panel

Printed Documentation

Central Terminal Demand Assignment System

 One DA Modem Shelf with RF Combiner Shelf

 Two DA Modem Shelves with RF Combiner Shelf

 Expansion Rack with one DA Modem Shelf and a Fuse and Alarm Panel. (Connects to

an existing Central Terminal Rack)

 Expansion Rack with two DA Modem Shelves and a Fuse and Alarm Panel. (Connects to

an existing Central Terminal Rack)

Installation

No of Modem

Shelves Central

Terminal Rack Expansion Rack

1 1 Modem Shelf Not required

2 2 Modem

Shelves Not required

3 2 Modem

Shelves 1 Modem Shelf

4 2 Modem

Shelves 2 Modem Shelves

Integrated Basestation

The Integrated Basestation incorporates a Combiner Shelf , Modem Shelf and Access

Concentrator in a full height equipment rack.

Printed Documentation

Installation

Rack Layouts

AS4020 Racks

AS4020 Central Terminal racks are produced with the following layouts:

Central Terminal Systems using AS4020

 Full height rack with RF Combiner Shelf. two AS4000 Modem Shelves and one

AS4020 Modem Shelf

 Full height rack with RF Combiner Shelf, one AS4000 Modem Shelves and up to

three AS4020 Modem Shelves

 Compact rack with RF Combiner Shelf. One AS4000 Modem Shelf and one AS4020

Modem Shelf

 Full height rack with RF Combiner Shelf, up to four AS4020 Modem Shelves

 Full height rack with RF Combiner Shelf. two AS4000 Modem Shelves and two

AS4020 Modem Shelves

Full height rack with RF Combiner Shelf. two AS4000 Modem Shelves and two AS4020

Modem Shelves

Printed Documentation

Installation

Rack Installation

Positioning and Securing Racks

Installing Rack in a Suite

From the site survey, confirm the position of the CT Rack(s). If the racks are to be

positioned in a suite, metalwork will be required to secure it to the overhead structure.

Either a proprietary system or fabricated steelwork will be required - see site survey.

Manoeuvre the racks into position.

Securing Rack Base

Using the base of the rack as a template, mark the floor locating positions through the

cutouts in the Rack Frame. Using a 13mm diameter drill bit, drill four holes to a depth of

approximately 25mm. Position the rack over the four holes and screw the four (supplied)

M12 screws through washers to secure the rack base. If the rack is cabled from under the

floor the access holes are required through the floor beneath the rack base.

Securing Rack Base

Warning: These screws are provided as locating pins only and must be used in

conjunction with the overhead steelwork and not as the only method for securing the rack.

Temporarily secure the rack to adjacent racks or steelwork until the overhead support is in

place.

Securing the rack using overhead Ironwork

Assemble the overhead steelwork as required and secure the rack to the overhead

structure using suitable fixings in compliance with local requirements. Remove all burrs

and sharp edges.

Printed Documentation

Typical Overhead Ironwork Support

Note: In installations where threaded droprods in excess of 500mm are employed it may

be necessary to provide additional support bars to ensure rigidity of the support structure.

Securing a Rack to a Wall

If the rack is to be positioned against a wall, attach two right-angled wall brackets to the

top of the rack and finger tighten with the provided M12 screws.

Manoeuvre the racks into position against the wall. Join the racks together with 12mm

nuts and bolts placed through the holes at the top and bottom of the side panels and mark

the wall through the holes in the top brackets.

Securing Rack to a Wall

Using an 11mm. drill bit, drill holes in the wall to a depth of 75mm and fit masonry plugs.

Fix the hex head screws through the brackets and finger tighten. Check that the rack is in

the correct position and tighten all fixings.

Attention should be paid to the fabric of the wall. Where possible, drill directly into the

brick and not into mortar. With panelled or partitioned walls, instruction should be taken

locally as to how the rack is to be secured. See site survey.

Follow the procedure for the rack base as described above.

Installation

DC Power and Alarm Cabling

Rack Earthing

Using the site survey, locate the building central [safety] grounding point. Run an earth cable

rated at 30A to each rack and connect it to the centre earth stud located at the top or at the

side of the rack. (only one external earth per rack) See illustrations below. These points are

labelled with the IEC Earth symbol.

Rack earthing at top

Rack earthing at base

Other external safety earth connections must not be made to the rack.

Printed Documentation

Terminate the battery feed and return cables at the isolator/fuse positions, and ensure that

the AC rack is isolated until the commencement of commissioning tests.

DC Power

The cables for the negative DC battery feeds, the 0V returns and the Rack Ground are

detailed in. Should local requirements specify otherwise, it is acceptable for cables of other

colours to be used, however, under no circumstances should the cable sizes be less than that

specified in. The length of the cable supplied will be detailed in the site survey. Separate DC

sources are desirable for maximum protection.

Function Colour Min. Cable Size

Negative Battery Feed -36V

to -60V DC Blue 10 AWG; 6.0mm2

Zero Volt Positive Battery

Return Black 10 AWG; 6.0mm2

Rack Ground Green/Yellow 8AWG; 10.0mm2

DC Power Cables.

This equipment requires a negative Supply. Ensure that the +ve volt line is connected

to ground or that the supply is floating. The –ve battery feed should not be connected to

ground or zero volts under any circumstances.

The maximum DC input should not exceed 60 Volts. Voltages in excess of this are

considered hazardous.

Note 1: Do not insert fuses until instructed to do so in the commissioning stage of installation.

Note 2: If the equipment is installed according to EN 60950 §1.7.9, there should be available

a single disconnect device that isolates the whole equipment., A double-pole external

isolating switch should be provided to isolate the two supplies and should be wall mounted in

the locale of the rack. A label should be included on the unit to direct the user to use the

external isolator for isolation.

The Access Concentrator and Central Terminal Shelves are designed to operate from a -48V

DC supply. In installations where the nominal supply voltage is +24V DC a DC to DC

converter is needed to provide the -48V supply see the schematic diagram below. The DC to

DC converter must be rated at 20 amps or greater at -48V DC

Installation

Power Supply Configurations

Three alternative methods are possible to connect the DC supply to the rack.

 Secure Supply: This is the preferred method as it provides DC from different sources

giving greater resilience of supply than the other methods. (see diagram above and note

2 below) From each Distribution Boards (DB) run and tie in a negative battery feed and

a zero volt return to a Dual Pole Isolating switch and then from the isolating switch to the

AC/CT rack installed. These supplies should be rated at 30A. Power cables must be run

and tied separate from signal cables.

Printed Documentation

 Dual Supply: Both feeds are fed from the same Distribution Boards (DB) and separately

fused so that in the event of one fuse failing the rack is supplied via the other fuse. Run

and tie in two negative battery feeds and a two zero volt returns from the Distribution

Board to a Dual Pole Isolating switch and then from the isolating switch to the to the

AC/CT rack installed. These supplies should be rated at 30A. Power cables must be run

and tied separate from signal cables. (see diagram above and note 2 below).

 Single Supply: Is the least preferred option as a blown fuse causes the total loss of

supply to the rack but because there is only one supply the fuse can act as an isolation

point and there is no need for a separate isolation switch as required on the other

options. Run and tie in a negative battery feed and a zero volt return from the Distribution

Boards to the AC/CT rack installed. The two inputs to the Combiner Shelf/Fuse and

Alarm Panel should be looped together as shown in the diagram above. This ensures

that the alarms on the PSU are extinguished when a supply is present.

From the site survey confirm the location of the isolator for the negative battery feed points;

then ensure that the supply is isolated. If the location is remote from the AC Rack, take

appropriate action to ensure that the supply is not inadvertently reconnected. This may

include locking OFF an isolator, removing fuses and ensuring that replacement fuses are not

easily installed. Provide a label at the AC Rack to indicate the location of the isolator or fuse

positions mentioned above.

To provide security of supply two separate Distribution Boards (DB) should be used to supply

DC to each rack (see note 2 below) Run and tie in a negative battery feed and a zero volt

return to the AC/CT rack installed from the DB. Run and tie in a second negative battery feed

and a zero volt returns to the AC/CT rack installed from a second DB, if a second distribution

board is available. If only one source of supply is available the both supplies may be run from

the same DB These supplies should be rated at 30A. Power cables must be run and tied

separate from signal cables.

DC Cabling Central Terminal Modem Rack/Integrated Basestation

Run the DC cables through the top right hand side of the rack, loosen the screws on the

Combiner Shelf and slide the screen to the right. Place the DC cables behind the screening

and though to the connection block at the lower right of the Combiner Shelf. Return the

screen to its original position. Re-tighten the Combiner shelf screws.

Trim cables and strip 7mm to insert into the termination block. Terminate the cables on the

Combiner Shelf at the appropriate connection points. The negative supplies go to Termination

Block 2 & 4. The positive battery returns go to 1 & 3.

DC Termination on The Combiner Shelf.

DC Termination on Fuse and Alarm Panel (AS4000 Access Concentrator

and AS4000 Expansion Rack)

Run the DC cables through the top left hand side of the rack, into the fuse and alarm panel.

Installation

Remove clear plastic cover protecting the DC input terminals. Trim cables and strip 7mm.

Crimp a spade terminal or terminal ring onto the wire and attach to terminals inside the Fuse

and Alarm panel at the appropriate connection points. The negative supplies go to

Termination Block 1 & 4. The positive battery returns go to 2 & 5. Replace clear plastic cover

protecting the DC input terminals.

DC Termination on Fuse and Alarm Panel.

Station Alarm Connection

For Power and Alarm wiring on AS4020 see 'AS4020 Installation'

Printed Documentation

AS4000 AC Rack Cabling and Wiring

AC Rack E1 Cabling 75 ohm

Access Concentrator Interface Panel

All cabling to the access concentrator connects to the interface panel. Slots 4,5 and 6 can be

used for 75ohm and 120ohm connections. Slots 7-14 is used for 120ohm connections each

slot will support up to 8 E1 connections.

Access Concentrator Interface Panel (1026 Board)

Specification: In installations with 75ohm cabling Braided screened, 75ohm, Coaxial Cable

is to be used for interconnection between the AC shelf the DDF and switch/channel bank.

a) E1 Cabling (CT Link)

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the CT links if the E1 feeds are fed direct to the equipment. The length of E1

feeds should not exceed 100 metres.

Note: This must be a SELV port of an EN 60950 approved product.

Run the E1 cables from the AC shelf to the allocated positions on the DDF. (8 cables per CTU

in normal working,up to 3 CTUs per shelf.).

In partial equipped installations it may be appropriate to run enough cables to cater for a

complete rack of equipment. This reduces the need to disturb original installation when

adding additional equipment.

Feed the E1 cables through the top hole on the left hand side of rack side of the rack, and

down the channel at the side of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with BNC co-axial connectors (or it is possible to fit type 43 and adapters

if BNC connectors are not available).

Installation

b) E1 Cabling (Switch Link)

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the Switch if the E1 feeds are fed directs to the equipment. The length of E1

feeds should not exceed 250 metres.

Note: This must be a SELV port of an EN 60950 approved product.

Run the E1 cables from the AC shelf to the allocated positions on the DDF. In partial

equipped installations it may be appropriate to run enough cables to cater for a complete rack

of equipment. This reduces the need to disturb original installation when adding additional

equipment.

Feed the E1 cables through the top hole on the most convenient side of the rack, and down

the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

a. Type 43 to 25wayD-type adaptors to the backplane sockets and terminate all cables with

Type 43 connectors (75ohm ) and fit according to the figure below .

Printed Documentation

Type 43 Backplane Adapter

b. Siemens 1.5/6.5 Connector. Fit Siemens 1.5/6.5 Connector to 25way D-type adapters

303-1139-900 to the backplane sockets and terminate all cables with Siemens 1.5/6.5

connectors (75ohm ) and fit according to the figure below.

Installation

Typical 75ohm DDF Layout

Printed Documentation

Installation

AC Rack E1 Cabling 120 ohm

Access Concentrator Interface Panel

All cabling to the access concentrator connects to the interface panel. Slots 4,5 and 6 can be

used for 75ohm and 120ohm connections. Slots 7-14 is used for 120ohm connections each

slot will support up to 8 E1 connections.

Access Concentrator Interface Panel (1026 Board)

120 ohm Cabling Specification

In installations with 12Oohm cabling Double screened, 120Ohm, 8 twisted pairs. The overall

screen should be screened with a foil AND 90% coverage tinned copper braid is to be used

for interconnection between the AC shelf, the DDF and switch/channel bank.

a) E1 Cabling (CT Link)

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the CT links if the E1 feeds are fed direct to the equipment. The length of E1

feeds should not exceed 100 metres.

Note: This must be a SELV port of an EN 60950 approved product.

Run the E1 cables from the AC shelf to the allocated positions on the DDF. (8 Pairs per CTU

in normal working,up to 3 CTUs per shelf.).In partial equipped installations it may be

appropriate to run enough cables to cater for a complete rack of equipment. This reduces the

need to disturb original installation when adding additional equipment.

Feed the E1 cables through the top hole on the left hand side of rack side of the rack, and

down the channel at the side of the rack. Identify and label each cable at both ends as well as

the DDF/Backhaul positions. Terminate all cables with RJ45 plugs and fit adapter 303-1112-

900 (See RJ45 terminations below) or use D-type connectors (See D-type terminations

below) at the rack .Terminate as appropriate at the DDF.

b) E1 Cabling (Switch Link)

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the Switch if the E1 feeds are fed directs to the equipment. The length of E1

feeds should not exceed 250 metres.

Printed Documentation

Note: This must be a SELV port of an EN 60950 approved product.

Run the E1 cables from the AC shelf to the allocated positions on the DDF. In partial

equipped installations it may be appropriate to run enough cables to cater for a complete rack

of equipment. This reduces the need to disturb original installation when adding additional

equipment.

Feed the E1 cables through the top hole on the most convenient side of the rack, and down

the front of the rack. Identify and label each cable at both ends as well as the DDF/Backhaul

positions. Terminate all cables with RJ45 plugs and fit adapter 303-1113-900 (See RJ45

terminations below) or use D-type connectors (See D-type terminations below) at the rack

.Terminate as appropriate at the DDF.

RJ45 Terminations

Terminate all cables with RJ45 connectors at the rack and as appropriate at the DDF.

RJ45 connector termination

Fit the RJ45 adapter 303-1113-900 (Slots 4,5 and 6) and 303-1112-900 (slots 7-14) and

secure to the Backplane using screws in the top and bottom holes of the adapter.

D-Type Terminations: Terminate all cables with 25 pin D-type connectors (120Ohm )

according to the tables below or fit RJ45 adapter to the D-Type Plugs on the AC Interface

Panel. .

Note:On D-Type connectors the screen connects to pin 13

Installation

Pair Designation Pin Pair Designation Pin

A1 In 1 A5 Out 15

B1 In 2 B5 Out 16

Screen 14

Screen 3

A2 In 4 A6 Out 18

A3 In 5 B6 Out 19

Screen 17

Screen 6

A3 In 7 A7 Out 21

B3 In 8 B7 Out 22

Screen 20

Screen 9

A4 In 10 A8 Out 24 4

B4 In 11

B8 Out 25

Printed Documentation

Screen 23 Screen 12

Overall Screen 13

120 ohm connections slots 4-6

Pair Designation Pin Pair

Designation Pin

A1 In 1 A5 Out 15

B1 In 2 B5 Out 16

Screen 14

Screen 3

A2 In 4 A6 Out 18

A3 In 5 B6 Out 19

Screen 17

Screen 6

A3 In 7 A7 Out 21

B3 In 8 B7 Out 22

Screen 20

Screen 9

A4 In 10 A8 Out 24

B4 In 11 B8 Out 25

Screen 23

Screen 12

Overall Screen 13

120 ohm connections slots 7-14 (In)

Pair Designation Pin Pair

Designation Pin

1 A1 In 1 5 A5 In 15

Installation

B1 In 2 B5 In 16

Screen 14 Screen 3

A2 In 4 A6 In 18

A3 In 5 B6 In 19

Screen 17

Screen 6

A3 In 7 A7 In 21

B3 In 8 B7 In 22

Screen 20

Screen 9

A4 In 10 A8 In 24

B4 In 11 B8 In 25

Screen 23

Screen 12

Overall Screen 13

120 ohm connections slots 7-14 (Out)

Pair Designation Pin Pair Designation Pin

A1 Out 1 A5 Out 15

B1 Out 2 B5 Out 16

Screen 14

Screen 3

A2 Out 4 A6 Out 18

A3 Out 5 B6 Out 19

Screen 17

Screen 6

Printed Documentation

A3 Out 7 A7 Out 21

B3 Out 8 B7 Out 22

Screen 20

Screen 9

A4 Out 10 A8 Out 24

B4 Out 11 B8 Out 25

Screen 23

Screen 12

Overall Screen 13

Installation

AC Rack T1 Cabling

All cabling to the Access Concentrator connects to the interface panel. Slots 7, 8, and 9 can

be used for T1 CTU connections. Slots 10-14 are used for T1 XTU connections each slot will

support up to 8 T1 connections. (Exceptionally slots 4, 5, and 6 can be used for XTU

connections using an adapter 303-1113-900 connected to the D- type below the BNCs for the

relevant slot. Only T1 5-8 are available for T1 connections.) Slots 8 and 9 can also be used

for XTU’s but it is normal to reserve these for future CTUs if possible.

Cabling Specification

In installations Cat 5 FTP screened (foil & braid) twisted pair should be used.

a) T1 Cabling (CT Link)

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the CT links if the T1 feeds are fed direct to the equipment. The length of T1

feeds should not exceed 100 metres.

Run the T1 cables from the AC shelf to the allocated positions on the DDF. (8 Pairs per CTU

in normal working, up to 3 CTUs per shelf.). In partial equipped installations it may be

appropriate to run enough cables to cater for a complete rack of equipment. This reduces the

need to disturb original installation when adding additional equipment.

Feed the T1 cables through the top hole on the left hand side of rack side of the rack, and

down the channel at the side of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with RJ45 connectors at the rack and as appropriate at the DDF.

T1 RJ45 connector termination

Printed Documentation

Fit the RJ45 adapter 303-1112-900 and secure to the Backplane using screws in the top and

bottom holes of the adapter.

RJ45 adapter 303-1112-900

b) T1 Cabling (Switch Link)

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the Switch if the T1 feeds are fed directs to the equipment. The length of T1

feeds should not exceed 100 metres.

Run the T1 cables from the AC shelf to the allocated positions on the DDF. In partial

equipped installations it may be appropriate to run enough cables to cater for a complete rack

of equipment. This reduces the need to disturb original installation when adding additional

equipment.

Feed the T1 cables through the top hole on the most convenient side of the rack, and down

the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with RJ45 connectors as shown above and fit RJ45 adapter to the D-

Type Plugs on the AC Interface Panel as shown above

Installation

PTU to Host Cabling

RJ45 to DB25 Adaptor

To connect the 100baseT cable to the AC Shelf interface panel a RJ45 to DB25 adaptor must

be fitted. Fit the RJ45 to DB25 adaptor and screw to the backplane. The RJ45 to DB25

adaptor currently must be connected onto the lower of the two 25-way AC connectors

allocated to each slot (even though the activity lights work if connected to the top).

Patch Cable

A standard Cat 5 Ethernet patch cable with 8-way RJ45 plugs at each end has all pins

connected straight through. The Tx and Rx pairs are pins 1&2 and 3&6. With plug towards

you, cable away from you, pins on the top, pin 1 is on your right. Clearly Tx at one end must

talk to Rx at the other.

A Hub (and Router) Ethernet port will have a built in crossover, often denoted by a ‘X’ printed

on the box, so a PC to a Hub uses a straight through standard patch cable, and so does a

Router to the PTU.

To connect a PC to PC or a PC to PTU (for demo, tests, etc.), use a crossover cable, with Pin

1 to Pin 3 and Pin 2 to Pin 6.

Printed Documentation

AC Rack Labeling

The racks should be labelled as shown below.

Access Concentrator Rack

Installation

Interface Connections

This page contains miscellaneous interface and connector details.

Printed Documentation

120 Ohm Interface Connections on DA Access Concentrator Backplane

Interface Adaptor EIA 530 to V35

Interface Adapter EIA 530 to X21

EIA 530 loopback Connector

Installation

Printed Documentation

BNC Terminations to Coax

Installation

Type 43 Terminations to Coax

Printed Documentation

Installation

Access Concentrator Card Installation

The AC rack is shipped with shelves fitted to customer requirements and internal cabling

complete.

Warning: Before handling any cards or modules, observe full anti-static precautions.

See Operations an Maintenance Guide

Preliminary

In a new installation ensure that the AC Circuit on the Fuse and Alarm panel are set to the

OFF position (down).

Warning: Isolation of power from the rack is only achieved by ensuring that both circuit

breakers are in the off position.

Access Concentrator Rack Fuse and Alarm Panel

Ensure that the end of suite fuses are adequately rated and insert these into the respective

fuse holder positions.

Card Insertion E1 Systems

Insert the cards into the shelves, recording the serial numbers and revision status in the test

results form. The actual cards provided will depend upon the customer configuration.

Printed Documentation

The maximum 64k build configuration (V5.1/CAS/ISDN) is shown above. The XTU functions

are configured using Sitespan. V5.1 does not support Data XTUs.

The maximum 32k build configuration for V5.2 is shown above. The XTU functions are

configured using Sitespan.

a. The load sharing PSUs go in slots 1&2.

b. The Shelf Controller goes in slot 3.

c. All other slot positions are configurable via Sitespan.

Installation

d. 3 CTUs are supported. Each CTU supports four CT modem shelves. Each CTU

may be cabled for four 120 E1s or four 75 E1s. and are placed in slots 4, 5,

and 6

e. XTUs (CAS, Data, ISDN, V5.1, V5.2 and PTU) are supported. Each XTU may be

cabled for eight 120 E1s. These can be placed in slots 5-14.(It is preferable to

build from slot 7 leaving 5 and 6 available for additional CTUs if required)

f. CU cards may go in any unused slot. (slots 15& 16 are preferred as they have no

E1 connections.

g. RTU card can go in slot 9 or 17 for card redundancy using a spare TU8 card (not

PTU), the redundant card is selected via Sitespan.

Note If installing a PTU the D-type on the backplane must be fitted with a D-Type to RJ45

adapter. The RJ45 to DB25 connector currently must be connected onto the lower of the two

25-way AC connectors (even though the activity lights work if connected to the top).

The preferred E1 options are shown below

Card Insertion T1 Systems

Insert the cards into the shelves, recording the serial numbers and revision status in the test

results form. The actual cards provided will depend upon the customer configuration.

a) The load sharing PSUs go in slots 1&2.

b) The Shelf Controller goes in slot 3.

Printed Documentation

c) All other slot positions are configurable via Sitespan.

d) 3 CTUs are supported. Each CTU supports four CT modem shelves. Each CTU may

be cabled for eight 120 T1s. and are placed in slots 7, 8, and 9

e) XTUs (GR303, CAS, Data, ISDN, V5.1, V5.2 and PTU) are supported. Each XTU

may be cabled for eight 120 E1s. These can be placed in slots 8-14.(It is preferable

to build from slot 10 leaving 8 and 9 available for additional CTUs if required) and in

slots 4,5 and 6.

f) CU cards may go in any unused slot. (slots 15& 16 are preferred as they have no T1

connections.

g) RTU card can go in slot 9 or 17 for card redundancy using a spare TU8 card (not

PTU), the redundant card is selected via Sitespan.

Note If installing a PTU the D-type on the backplane must be fitted with a D-Type to

RJ45 adapter. The RJ45 to DB25 connector currently must be connected onto the

lower of the two 25-way AC connectors (even though the activity lights work if

connected to the top).

The preferred card positions are shown in the table below.

Installation

AS4000 CT Shelf Cabling and Wiring

Central Terminal Rack E1 Cabling 75 ohm

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the Backhaul/Access Concentrator if the E1 feeds are fed directs to the

equipment. The length of E1 feeds should not exceed 250 metres

Note: This must be a SELV port of an EN 60950 approved product.

E1 Rack Cable Runs

CT Modem Shelf interface connections to shelf backplane 303-1001-900

Printed Documentation

75 Ohm Shelf Interface Connections

Run the E1 co-axial cables from the modem shelf to the allocated positions on the

DDF/Backhaul. (Two cables per shelf in normal working, four cables per shelf in protected

mode). In partial equipped installations it may be appropriate to run enough cables to cater for

a complete rack of equipment. This reduces the need to disturb original installation when

adding additional equipment.

Feed the E1 cables through the top left hand side of the rack, and down the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with BNC co-axial connectors.

Connect the E1 ports on the DDF to E1IN Slot 5 and E1OUT Slot 5 BNC connectors on shelf

interface connections located on the modem shelf interface panel.

Ensure that the respective E1 ports have been configured on the DDF/Backhaul

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

CT Modem Shelf interface connections to shelf interface panel 303-1111-

900

Installation

Shelf Interface Panel 303-1111-900

75 Ohm Shelf Interface Connections

Run the E1 co-axial cables from the modem shelf to the allocated positions on the

DDF/Backhaul. (Two cables per shelf in normal working, four cables per shelf in protected

mode). In partial equipped installations it may be appropriate to run enough cables to cater for

a complete rack of equipment. This reduces the need to disturb original installation when

adding additional equipment.

Feed the E1 cables through the top left hand side of the rack, and down the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with BNC co-axial connectors.

Connect the E1 ports on the DDF to E1IN Slot 5 and E1OUT Slot 5 BNC connectors on shelf

interface connections located on the modem shelf interface panel.

Ensure that the respective E1 ports have been configured on the DDF/Backhaul

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

For 75ohm working the switches below the E1 out BNC connector should be set as shown

below

Cable connections to Shelf Interface

Printed Documentation

Installation

CT Rack E1 Cabling 120 ohm

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the Backhaul/Access Concentrator if the E1 feeds are fed directs to the

equipment. The length of E1 feeds should not exceed 250 metres

Note: This must be a SELV port of an EN 60950 approved product.

CT Modem Shelf interface connections to shelf backplane 303-1001-900

Printed Documentation

120 Ohm Shelf Interface Connections

Run the E1 120 ohm cables from the modem shelf to the allocated positions on the

DDF/Backhaul. In partial equipped installations it may be appropriate to run sufficient cables

to cater for a complete rack of equipment. This reduces the need to disturb original installation

when adding additional equipment.

Feed the E1 cables through the top left-hand side of the rack, and down the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables at the modem shelf end with 9 pin D-Type connectors. Terminate as

detailed in below.

Connect the E1 ports on the DDF to E1 slot 5 connectors on shelf interface connections

located on the modem shelf interface panel.

Ensure that the respective E1 ports have been configured on the DDF/Backhaul

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

CT Modem Shelf interface connections to shelf interface panel 303-1111-

900

Installation

Run the E1 cables from the modem shelf to the allocated positions on the DDF/Backhaul. In

partial equipped installations it may be appropriate to run sufficient cables to cater for a

complete rack of equipment. This reduces the need to disturb original installation when

adding additional equipment.

Feed the E1 cables through the top left-hand side of the rack, and down the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Impedance Switch settings

Set the switches below the E1 out BNC connector to 120 ohm as shown below

E1 Shelf Interface Connections To RJ45

Terminate all cables with RJ45 Connectors. Terminate as detailed below.

The illustration below shows the adapter (Slot 5) and backhaul connections

Printed Documentation

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

E1 Shelf Interface Connections To D-Type Plug

Terminate all cables at the modem shelf end with 25 pin D-Type connectors. Terminate as

detailed below.

Installation

CT Rack T1 Cabling

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a DDF is

to be used or the Backhaul/Access Concentrator if the T1 feeds are fed directs to the

equipment. The length of T1 feeds should not exceed 100 metres. Cat 5 FTP screened (foil &

braid) twisted pair cable should be used.

CT Modem Shelf interface connections to shelf backplane 303-1001-900

Printed Documentation

T1 (RJ45) interface connections to 303-1111-900 shelf interface panel

Run the T1 cables from the modem shelf to the allocated positions on the DDF/Backhaul. In

partial equipped installations it may be appropriate to run enough cables to cater for a

complete rack of equipment. This reduces the need to disturb original installation when

adding additional equipment.

Feed the T1 cables through the top left-hand side of the rack, and down the front of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with RJ45 Connectors. Terminate as detailed below.

Connect the T1 ports on the DDF to the T1 RJ45 adapter fitted to the slot 5 connector on the

shelf interface panel. Ensure that the respective T1 ports have been configured on the

DDF/Backhaul. The Primary T1 should connect to port 5 and the Secondary T1 to port 6. The

first Modem Shelf in the rack distributes the secondary T1 quarters to the other modem

shelves in the CT and expansion Rack if used.

The illustration below shows the connections to Slot 5 Modem Shelf 1using two adapters 303-

1113-900.

Installation

The illustration below shows connections to Modem Shelves 2,3 and 4 using adapter 303-

1113-900

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

Ensure that the switches below the BNC on the Shelf Interface Panel are set for 100ohm

working

Printed Documentation

Baseband connections between CT and Expansion Racks

Inter-rack Baseband connections to Expansion Rack

Remove the blank panel located immediately below the combiner shelf on the CT Rack

Run a Baseband ribbon cable from each modem shelf in the Expansion Rack to the combiner

shelf via the hole created by the removal of the breakout sections during the rack installation.

Insert the connector into the Baseband socket on the Modem Interface shelf (see) and into

the appropriate socket on the Combiner Shelf backplane (the sockets are located behind the

switches). If using a Hybrid Rack these connections will differ from the illustration below. (see

Hybrid Rack Modification for Directional Antenna)

Combiner Shelf Ribbon Connections

Run the alarm bus ribbon from the Alarm and Breaker panel to the Alarm Bus socket in the

CT Rack wiring loom.

Installation

Expansion Rack Cabling

Central Terminal Expansion Rack Cabling

2Mbit/s Cabling

From the site survey, confirm the location of the Digital Distribution Frame (DDF) if a

DDF is to be used or the Backhaul/Access Concentrator if the 2Mbit/s feeds are fed

direct to the equipment. The length of 2Mbit/s feeds should not exceed 250 metres

Note: This must be a SELV port of an EN 60950 approved product.

Printed Documentation

1. Shelf Interface Connections.

75 Ohm Connections

Run the 2Mbit/s co-axial cables from the modem shelf to the allocated positions on the

DDF/Backhaul. (Two cables per shelf in normal working, four cables per shelf in protected

mode). In partial equipped installations it may be appropriate to run enough cables to

cater for a complete rack of equipment. This reduces the need to disturb original

installation when adding additional equipment.

Feed the 2Mbit/s cables through the top left-hand side of the rack, and down the front of

the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with BNC co-axial connectors.

Connect the 2Mbit/s ports on the DDF to E1IN Slot 5 and E1OUT Slot 5 BNC connectors

on shelf interface connections located on the modem shelf interface panel.

Ensure that the respective 2Mbit/s ports have been configured on the DDF/Backhaul

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

120 Ohm Connections

Run the 2Mbit/s 120 ohm cables from the modem shelf to the allocated positions on

the DDF/Backhaul. In partial equipped installations it may be appropriate to run

enough cables to cater for a complete rack of equipment. This reduces the need to

disturb original installation when adding additional equipment.

Feed the 2Mbit/s cables through the top left-hand side of the rack, and down the front

of the rack.

Identify and label each cable at both ends as well as the DDF/Backhaul positions.

Terminate all cables with 9 pin D-Type connectors. Terminate as detailed below.

Installation

120 ohm connection to CT modem shelf.

Connect the 2Mbit/s ports on the DDF to E5 slot 5 connectors on shelf interface

connections located on the modem shelf interface panel. If using protected mode connect

the other 2Mbit/s cables to E5 slot 9 connectors on the same panel.

Ensure that the respective 2Mbit/s ports have been configured on the DDF/Backhaul

Tie in cables as necessary using suitable cable ties, trim, leaving no sharp edges.

Printed Documentation

Antenna Configurations

AS4000

This section describes the various antenna configurations and modifications needed to the

baseband wiring if the AS4000 CT rack is configured so that the two modem shelves serve

separate directional antenna. and the subsequent connection arrangements when an

expansion rack is fitted.

1. Standard configuration for Antenna (omni or sectored) using 2 RFs on one Antenna

initially and 2 RFs per antenna when an Expansion Rack and second Antenna are

added

Figure 1 Combiner Shelf Ribbon Connections Before Modification

2. Rack Modification for two separate directional Antenna using 1RF per Antenna

initially and 2 RFs per sector when an Expansion Rack is added

The modification consists of re arranging the baseband cables from the modem shelves such

that the bottom shelf in the CT rack now connects to RF Card 3 and consequently will feed

into the antenna connected to DIP/LNA 2. If an expansion Rack is fitted then the top shelf

connects to RF Card 2 and will feed into the antenna connected to DIP/LNA 2. A block

diagram of the system after modification is shown below.

Modification to CT Rack

Installation

1. Remove the blank panel located immediately below the Combiner Shelf on the DA

Rack.

1. Swap the baseband connectors from Modem Shelves 2 and 3 on the

Combiner Shelf backplane (the sockets are located behind the switches on

the Combiner Shelf).

AS4020

This section describes the various antenna configurations and connections needed to the

baseband wiring

1. Standard configuration for antenna (omni or sectored)

Printed Documentation

Combiner Shelf Ribbon Connections Standard Config

Mixed AS4000 / AS4020

Configuration for AS4020 where AS4000 exists on sectored /dual omni antenna

Installation

Configuration for AS4020 where AS4000 exists on single omni and additional antenna

added

Integrated Base Station Rack

The antenna is configured as shown in the diagrams below.

Printed Documentation

Installation

Interface Connections

This page contains miscellaneous interface and connector details.

Printed Documentation

120 Ohm Interface Connections on DA Access Concentrator Backplane

Interface Adaptor EIA 530 to V35

Interface Adapter EIA 530 to X21

EIA 530 loopback Connector

Installation

Printed Documentation

CT Rack Labelling

Central Terminal Rack

Installation

BNC Terminations to Coax

Printed Documentation

Type 43 Terminations to Coax

Installation

Printed Documentation

Central Terminal Card Installation

The CT rack is shipped with shelves fitted to customer requirements and internal cabling

complete.

Preliminary

In a new installation ensure that the CT Circuit Breakers located on the lower assembly of the

Combiner Shelf are set to the OFF position (Down). See and that the breakers on the Fuse

and Alarm panel of the Expansion Rack are switched are set to the OFF position (down) See.

Warning: Before handling any cards or modules, observe full anti-static

precautions

CAUTION PA INSERTION

Care should be taken when installing PAs to ensure that the card connector mates with the

backplane connector correctly. Any attempt to ram the card home or force the card into he

slot may cause damage to the connector. Insert the card until the connectors engage, ease

the card into the backplane until fully engaged. Lock top and bottom with a screwdriver. If

resistance is met, remove the card and reinsert. If difficulty persists contact the Airspan

service centre.

CAUTION DIP/LNA INSERTION

Care should be taken when installing DIP/LNAs to ensure that the card connector mates with

the backplane connector correctly. Any attempt to ram the card home or force the card into he

slot may cause damage to the connector. The board extractor levers may be used to assist

with insertion, when the card is home press the body of the DIP/LNA to ensure that the

connector is fully engaged. If resistance is met remove the card and reinsert. If difficulty

persists contact the Airspan service centre.

WARNING: Isolation of power from the rack is only achieved by ensuring that both

circuit breakers are in the off position.

Part of RF Combiner Shelf showing Circuit Breakers.

Installation

Expansion Rack Fuse and Alarm Panel

Ensure that the end of suite fuses are adequately rated and insert these into the respective

fuse holder positions.

Card Insertion

Insert the cards into the shelves, recording the serial numbers and revision status in the test

form.

Printed Documentation

Card Insertion DA Rack

Card Insertion Expansion Rack

Installation

Card Provision for New Installation

With the initial installation it is advisable to install the cards in both the combiner shelf and the

modem shelves with the power switched off.

Fit Cards in RF Combiner Shelf

Printed Documentation

Insert the following modules and secure:-

 1 RF Power Amplifier Module (2 PA’s) in the left hand position in the combiner shelf

 1 x Low Noise Amplifier + Diplexer (DIP/LNA 1) (Terminate output with 50ohm

termination.)

 2 x PSU’s

 2 x Combiner Monitor Card (Monitor 1 303-043-900 & Monitor 2 303-043-901)

 For each modem shelf provided install 1 x RF Card (RF)

If an Expansion Rack has been installed also insert the following modules in the RF combiner

shelf located in the DA CT Rack and secure:-

 1 RF Power Amplifier Module (2 PAs per module) in the right hand position in the

combiner shelf - note the orientation of this module.

 1 DIP/LNA (Terminate output with 50ohm termination.)

 1 x PSU

 For each modem shelf provided install 1 x RF Card (RF)

Fit Cards in Modem Shelf

Installation

Insert the following cards into each Modem Shelf: -

 2 x PSUs Slots 1 and 2.

 1 x Analogue Card (AU) Slot 16.

 1 x Demand Assignment Tributary Card (DTU). Slot 5.

 1 x Shelf Controller (SC) Slot 3.

 Modem Cards Slots 10 to 15.

Fit RF Coupler for using a DACU

Fit RF Coupler for connection of systems to the DA Control Unit for commissioning.

A 30dB coupler should be fitted to the male N-Type connector at the top of the DIP/LNA1 and

the DIP/LNA2 (if fitted). Port J1 fits onto the DIP/LNA module and the antenna feed fits on to

port J2. The coupler should be orientated as shown in so that the SMA port faces to the right

side of the rack (when viewed from the front) to allow easy access for test leads. Note some

3.4-3.6GHz systems may not have couplers fitted.

Connect Antenna

If the Rack is fitted with couplers connect antenna at this stage. Do not connect antenna at

this stage on systems without couplers fitted.

Note: See Antenna and Feeder Installation and Commissioning Procedure, 605-0000-503 for

details of feeder grounding.

Printed Documentation

Some Installations may use directional antennas and use two DIP/LNAs for a two shelf

system. in this situation Shelf 1 connects to DIP/LNA 1 and Shelf 2 to DIP/LNA 2. See Hybrid

Rack Modification for Directional Antenna

Two Antenna Installations

In new installations the protective boots of the antenna feeder tails free ends should be kept

in position until the tail is actually connected. Form one of the tails carefully (avoid tight bends,

minimum bend radius is 125mm), to connect with the N-Type sockets on the Coupler on top

of the DIP/LNA module in the Combiner Shelf. If PA2 and the DIP/LNA2 units are fitted the

second antenna should be connected to the DIP/LNA2.

Single Antenna Installations

If modem shelves 3 and 4 are not installed it is possible to install only 1 antenna and connect

the feeder to the output port of DIP/LNA1 Unit.

If the Combiner Shelf is not equipped with DIP/LNA2, it is recommended that the second

antenna should be terminated with a 50ohm termination. The termination can be made either

at the base of the dipole if only one feeder is fitted, or at the base of the second feeder if the

second feeder has been provided in readiness for future shelf expansion.

Card Provision into existing installation

a) Shelf 3 (Top shelf of expansion Rack)

When installing cards into an existing installation the power is already connected to the DA

CT Rack and the cards should be inserted in the order listed below.

Insert the following cards into the Combiner Shelf (located in the DA CT Rack):-

 1 RF Power Amplifier module (2 PAs per module) in the right hand position in the

combiner shelf located in the combiner rack.- Note orientation of the PA module.

 1 DIP/LNA2 (Terminate output with 50ohm termination.)

 1 x PSU’s

 1 x RF Card (RF) (Third Slot)

Insert the following cards into the Modem Shelf:-

Installation

 2 x PSUs. Slots 1 and 2.

 1 x Shelf Controller Card

 1 x Analogue Card (AU). Slot 16.

 1 x Demand Assignment Tributary Card (DTU). Slot 5.

 Modem Cards Slots 10 to15.

b) Shelf 2 (CT Rack) or Shelf 4 (Expansion Rack)

When installing cards into an existing installation the power is already connected and the

cards should be inserted in the order listed below.

Insert the following cards into the Combining Shelf:-

 1 x RF Card (RF)(in slot 2 for modem shelf 2 or slot 4 for modem shelf 4)

Insert the following cards into the Modem Shelf:-

 2 x PSUs Slots 1 and 2.

 1 x Shelf Controller Card

 1 x Analogue Card (AU) Slot 16.

 1 x Demand Assignment Tributary Card (DTU).Slot 5.

 Modem cards Slots 10 to15.

Printed Documentation

AS4020 CT Shelf Installation and Cabling

Shelf Connections

AS4020 comprises of a single 65mm (approximately 1.5u) high shelf, which can be fitted in an

ETSI rack, 19" rack or 21" rack. AS4020 is flexible in its deployment, although is must remain

within a couple of meters of the radio sub-system. Initially the AS4020 CT shelf is fitted within

the AS4000 CT rack with the Radio sub-system, and optionally alongside up to two AS4000

CT shelves. Alternatively a half-height AS4000 CT rack can fit four AS4020 shelves and a

radio sub-system.

All connections to the AS4020 shelf are through the front of the unit, except DC power, which

is fed from the RF combiner shelf to the rear of the unit. the illustration below shows a the

interfaces available on the front of the AS4020 CT shelf. All connections are made to the front

panel with the exception of the power connection at the left hand side of the shelf.

All cables should enter via the cable tray above the shelf. Cable entry to the main panel is via

the left hand opening and via the right hand opening to the option panel as this avoids the

possibility of cables obscuring the menu.

The AS4020 CT shelf is cooled using fans that are hot-pluggable in the event of failure. An

AS4020 CT shelf can only be installed in a weather-protected location.

The AS4020 CT shelf provides a terminal connection for initial configuration of the Ethernet

ports, a method for commissioning the system, and menus for basic systems diagnostics. In

addition to the terminal interface, AS4020 contains an LCD screen to provide alarm details

and limited status information.

Full configuration of AS4020 is via the management system, which can be a local Ethernet

connection, or via the network Ethernet interface.

The AS4020 CT shelf provides the switching functionality of the system, as well as managing

radio access on both the uplink and downlink. The shelf is also responsible for the radio

interface architecture, namely BDM, dynamic modulation, and RTS/CTS signalling.

When adding shelves to an existing AS4000 system use the following diagrams to determine

the points to connect the radio port and combiner monitor connections.

o Adding one AS4020 shelf

o Adding two AS4020 shelves

o Adding three AS4020 shelves

o Adding four AS4020 shelves

o Adding Two AS4020 Shelves to an existing Two AS4000 shelf rack

Installing the Voice Option Board

Units are shipped with the option board installed if specified, but options boards may be

added to existing shelves.

Installation

1. Remove the blanking plate by removing the two screws that secure it to the chassis

2. Carefully slide the option board into the shelf ensuring that the connector mates with

the backplane.

3. Secure with screws to the chassis.

Printed Documentation

AS4020 Shelf Installation upgrade into AS4000 Rack

This topic covers the installation of AS4020 shelves as an upgrade into an existing AS4000

rack.

The AS4020 fits immediately below the combiner shelf in the central terminal rack. If more

than one AS4020 is to be installed existing modem shelves will need to be removed. The

AS4020 installation wiring diagrams in this manual should be used in conjunction with this

topic.

Parts required.

shelf

shelves

(1 x

AS4000

exists)

2 shelves

(2 x

AS4000

exists)

shelves 4

shelves

AS4020 shelf. 1 2 2 3 4

Cable tray and cover + 2 x cage

nuts, screws and washers. 1 2 2 3 4

Baseband connecting lead (part

no 454-0010-135). 1 2 2 3 4

Power connecting lead (part no

454-0010-136). 1 2 2 3 4

Alarm connecting lead (454-0010-

134). 1 2 2 3 4

Alarm Breakout connector (454-

0010-137). 1 1 2 2 2

Ethernet connecting lead (as

required).

Installing an AS4020 shelf into an existing CT rack.

1. If possible power down the rack. Note: It is possible to connect the AS4020 shelf

without removing the rack from service. However if the AS4020 is connecting via

an existing PA the service using the other RF channel in the PA must be taken

out of service to set TX sensitivity.

2. Remove the cover from the combiner switch panel and plate below the right

hand PA.

3. Remove the side panels from the rack.

4. Remove existing 100mm cover from below the combiner shelf.

5. Run the power connecting lead (part no 454-0010-136) from the combiner shelf

backplane (socket J13) to the left hand side of the shelf position for the AS4020.

In a 4 Shelf loom this socket may have a plug inserted but it should not be

connected to any equipment and can be removed.

In order to connect the lead it is best to remove the switch from the combiner

shelf. If the rack is still in service the power plug can be removed and the new one

Installation

inserted in J13 by removing the PSU from the third position and carefully inserting

the hand into the gap. If there is difficulty removing the plig it is possible to loosen

the switch assembly with the power still on but extreme care must be taken to

avoid short circuiting the DC supply wiring.

6. If the rack is powered down remove the two screws retaining the supply switch

panel on the combiner self to gain access to the combiner shelf back plane.

Remove the plate on the right hand side of the combiner. To improve access the

third PSU may also be removed.

7. Thread up connecting lead (part no 454-0010-135) from the shelf position to the

backplane of the combiner shelf . Connect to the IDC connector corresponding to

the RF card to be used.

8. Remove the Alarm Connector from JP4(Alarm) on the AS4000 shelf 1 backplane

and insert the connector 454-0010-137 between JP4 and the connector

9. Connect the combiner monitor connecting lead (454-0010-134) into the port

labeled '442' (there are two ports labelled '442' the top one should be used. ( the

other port labelled '442 ' is used when daisy chaining the monitor to other AS4020

shelves).

10. The AS4020 is installed at the bottom of the 100mm gap created by the removal

of the blanking panel. Before inserting the shelf connect the power lead to the 15

way D-type socket at the rear of the shelf. and ease into position. It is not possible

to connect the power to the shelf once the shelf is in position.

11. Secure the shelf with four cross head screws and locking washers.

Printed Documentation

12. Fit the cable tray immediately above the AS4020 shelf. Fix the shelf with two

cross head screws and locking washers.

13. Connect the IDC end of the combiner monitor connecting lead (454-0010-134) to

the IDC connector in the cable assembly 454-0010-137 added in step 8.

14. Connect part no 454-0010-135 to the 26way high density D-type labeled 'Radio'

on the front panel of the AS4020

15. For additional shelves connect cables as shown in the AS4020 installation

diagrams and follow the steps above where applicable.

16. Use a straight connected Ethernet cables to connect the patch panel /router/ IP

network/ etc to the Management Port and Traffic Ports.

17. Replace the covers removed from the combiner shelf.

18. Attach the front cover to the shelf tray(s)

19. Replace the side panels on the rack and secure with four retaining screws.

The unit is now ready for commissioning.

For details of interface connections see AS4020 Interface Connections

Note if installing more than one shelf the same instructions apply as above but the

connections will differ see the accompanying diagrams.

Installation

Adding one AS4020 shelf to existing rack

The following installation diagrams show the additions to wiring that need to be made when

adding 1 AS4020 shelf into existing rack.

Printed Documentation

Adding two AS4020 shelves to existing rack

The following installation diagrams show the additions to wiring that need to be made when

adding 2 AS4020 shelves into existing rack.

Installation

Adding three AS4020 shelves to existing rack

The following installation diagrams show the additions to wiring that need to be made when

adding 3 AS4020 shelves into existing rack.

Printed Documentation

Adding four AS4020 shelves to existing rack

The following installation diagrams show the additions to wiring that need to be made when

adding 4 AS4020 shelves into existing rack.

Installation

Adding two AS4020 with two AS4000

If it is required to put two AS4020 shelves into an existing two shelf AS4000 installation the

first AS4020 shelf should be placed between the combiner shelf and the top AS4000 shelf. To

provide the second AS4020 shelf it is necessary to remove the bottom vent panel and move

the lower AS4000 shelf down to accommodate the second AS4020 shelf below the top

AS4000 shelf.

The shelves should be cabled as shown below. The actual connections to the RF cards at the

combiner shelf may differ from the diagram dependant on the antenna configuration.

Printed Documentation

AS4020 Interface Connections

Alarm Wiring 26way High Density Male D-type.

Pin Description

1 DC 3.3V

2 Reset

3 Reset

5 &

22 Service

7 &

24 Attention

9 &

26 Fail

17 Reset

18 Earth

19 Reset

LAT Socket

Pin Description

6 Earth

7 Tx Out

8 Rx In

RS442

Pin Description

1 RX +

2 RX -

3 TX +

6 TX -

Traffic

Pin Description

1 TX+

2 TX -

3 RX+

6 RX -

Management Port

Pin Description

1 TX+

2 TX -

3 RX+

6 RX -

Option Unit

Pin Description

1 RD+ (input to option

card from AC)

2 RD-

4 TD+ (output from

option card to AC)

5 TD -

Setup and Test

System Testing

This section sets up the parameters for the system and the connection to Netspan

Refer to the Netspan, document no. 605-0000-509 for the detailed configuration and set

up procedures of Netspan and the AS4020 System.

General

The following procedures need to be carried out in order to verify the functionality and

operation of all cards fitted into the Central Terminal prior to placing the AS4000/4020

system into service.

It is preferable to connect the As4000/AS4020 to a ISP when commissioning. This allows

the CT to be connected and test calls made over the system during the commissioning

process.

If during testing, a fault occurs preventing the continuation of the test, the faulty module or

card should be replaced and the test repeated for the new card module and any other

tests that are affected by the performance of that card.

All results must be entered on the Commissioning Test Result Sheets (Copies are

included in this manual and should be printed as required). Test forms should be

photocopied as needed, ensure that sufficient copies of all sheets are available prior to

the commencement of commissioning tests.

There are two activities required; a) the network management centre should create the

sites and equipment in the database (frequency and PN ),using Netspan b) the field

engineer should commission the equipment to the recommended parameters (output

power and system receiver sensitivity).

Pre-Commissioning at the Network Management Centre

For a completely new installation, the NMC administrator should create the sites and

equipment racks in each site ( with the frequency, PN etc entered, in preparation of the

actual equipment installation and commissioning. When expanding the system with

additional CT sites, the administrator should add the extra CT equipment using Netspan.

During field commissioning, the field engineer will use a local laptop running copy of

STMON to control the test ST.

Printed Documentation

AS4000 AC Setup and Test

Access Concentrator: Turn-Up and DC measurements

Pre-Checks

Before commencing the turn-up of the rack check that the serial number and Rev levels of all

card have been entered into the test form and that the SC boot chip version is recorded.

DO NOT power up or plug any cards fully into their slots at this stage.

Router Port Availability. If the Sitespan Server is located at the NMC and connected via a

router confirm the IP address for the router at the AC and the port for connection (typically a

RJ45 cabled to the AC from the back of the router.

Apply a loopback on the designated router port (pins 3 to 6 on an RJ45).

Check that the router at the AC can be pinged and the loopback seen from the Sitespan

Server PC at the NMC by using a simple communication application as hyper terminal at the

COM port intended for Sitespan use.

Isolate all E1/T1 cables from the AC by removing the links at the DDF.

Disconnect all cards from the backplane by pulling forward in the card guides so that the

power will not be applied to the cards when the shelf is switched on.

Rack Turn-Up and Measuring Input Voltage (Test 1a)

This section describes the procedure for measuring and connecting DC to the rack, checking

that the cards have the correct alarm indications on power-up and measuring the PSU output

voltages.

Unscrew retaining screws on the face of the Fuse and Alarm Panel. Hinge forward the panel

and using the DMM measure and record the Exchange DC voltage supply across the input

terminals (TB1(-); TB2+;.for Supply 1 and TB4(-); TB5(+) for supply 2). Check that the polarity

is correct. Ensure that the voltage measured complies with the site nominal voltage and is

within the limits specified on the test results sheet.

Test Voltage

Record the measured voltage on the test results sheet.

3. Turn-Up AC Shelves: (Tests 1b)

Setup and Test

Place one PSU in the shelf . Switch the Rack ON by placing one breaker on. The two

breakers duplicate power to each shelf and the shelves will still function if one power supply

fails though the LED indicators on the power supplies will not be on. The PSU should show a

green LED and one supply fail LED. Switch on the second breaker and the Red LED should

extinguish.

Switch off and place the second PSU in the shelf and repeat the process described in the

paragraph above.

Access Concentrator Shelf PSU

Place a SC Card into the shelf to provide a load. Switch both breakers on and measure and

record the DC voltage at the o/p of each PSU.

Ensure that the voltages measured are within the limit shown below. Record the results in test

form.

Voltage

Upper

Limit Lower

Limit

5V DC 5.25V 4.75V

3.3V

DC 3.3V 3.0V

Printed Documentation

2.1V

DC 2.1V 2V

Access Concentrator Shelf PSU Voltages.

Switch Rack off and plug in all the remaining cards in their respective positions on the shelf

Repeat Test 1b for the other AC shelves if fitted.

Setup and Test

Setting Up the Access Concentrator

The Access Concentrator is setup using Sitespan in stand alone mode and Netspan does not

need to be connected for the AC to be set up

Setting the TEI and Baud Rate for Netspan Connection

1. Connect PC using AS7030 SiteStart software to the LAT port on the front of the shelf

controller of the Shelf being commissioned..

2. Set the TEI to the value designated during system planning. The TEI number must be

unique to the Network managed by Netspan.

3. Set the Baud Rate for connection. The same rate must be set when setting up AC Shelf

Properties later in this commissioning process.

To commission the AC Shelf the Shelf must be connected via an RS232 interface to a

Sitespan server. However the settings made during the setup process must be transferred to

the NMS Netspan before it server is connected or values set within the shelf during this

process will be overwritten by Netspan when it is connected. Alternatively if Netspan is

available the setting up can be done using Netspan

Creating AC Shelf/Rack on Sitespan

1. Connect the Field Engineer Laptop to the AC shelf Sitespan port.

2. Run Sitespan Server software on the laptop.

3. Open Sitespan Client application.

4. Create the Server to make connection to (usually the name of the PC).

5. Connect to the Server.

6. Create Site.

7. Highlight the site, click right mouse button and select Create Child Element

8. Select Airspan AC Rack

9. Highlight the rack in Object List, click right mouse button and select create Airspan

DA AC shelf

10. Select the position for the AC shelf.

11. From the Object List, Shelf select the Access Concentrator, click right mouse button

and select Element View

12. Select AS4000 (DA) AC Shelf.

13. Continue with 'Setting up AC Rack and Shelf Configuration' below

Creating AC Rack and Shelf configuration on Netspan

1. Click the + sign on the 'Create Node' menu to show the sub menu items

2. Select AS4000 AC and click the left mouse button.

Printed Documentation

3. Select the site.

4. Enter name. The name must be unique within the network or an error message is

displayed and the shelf is not created.

5. Click OK to add shelf to the database.

6. The shelf is displayed on the tree view

7. Move mouse pointer to the shelf icon and right click. Select configure from the menu.

8. Continue with 'Setting up AC Rack and Shelf Configuration' below

Setting up AC Rack and Shelf configuration

1. Click right mouse button over AUX card position 4 select and create a CTU card.

2. Create additional CTU cards in slots 5 and 6 if required.

3. Position mouse over CTU card position, click right mouse button and select Airspan

CTU Properties

4. Set up the CTU properties as detailed in the Netspan Section

5. Repeat for other CTU cards.

6. Click OK

Assign Access Concentrator Card Slots

1. Click right mouse button over AUX card positions 7-17 to create other AUX cards as

required (XTUs RTU and PTU and Compression Unit.

2. Select the card type to be created.

3. Repeat steps 1 to 3 for all cards to be installed in the shelf.

Configure AC Cards

1. For details on configuring the cards see the relevant topic in the Netspan section of

this manual

Configure AC Shelf properties

1. Make sure the SC software is at the correct release, and all cards can be seen on the

AC Shelf equipment view. If required download the appropriate software by following

the software download procedure (see Software Download)

2. Re-boot the Shelf by clicking the Reset Shelf button on the shelf controller view.

Setup and Test

Check Boot Sequence

1. SC card boots-up and displays the following LED sequence:

a. Red & green LEDs both ON

b. All LEDs OFF

c. Green LED FLASHING

d. Green LED ON

e. The red LED temporarily comes ON

2. All the cards on the shelf now boot-up.

3. The TU cards display the following LED sequence:

Note: The boot-up procedure for these cards takes approximately 7 minutes.

a. Red LED, amber LEDs & green surface mount LEDs all ON. Green LED

FLASHING

b. Red LED ON, green LED FLASHING, amber LEDs OFF & green surface mount

LEDs showing download progress. Building up in a column from the bottom as the

code is download.

c. Green LED ON, green surface mount LEDs indicate card configuration as shown

below

LED CTU XTU

1 Top OFF ON

2 ON OFF

3 OFF OFF

4 Bottom OFF OFF

4. The rest of the cards display the following LED sequence:

Note: The boot-up procedure for these cards takes a few minutes and will depend on

the specific card type.

a. Red LED ON & green LED FLASHING

b. Green LED ON

5. If the cards do not boot-up correctly, i.e. any of the cards display a flashing red or

continuous red LED only, follow the procedure in case of Card boot-up failure

6. The boot sequence is complete when the Sitespan reports the shelf as connected

ready. This can take some additional minutes after the LED indications on the shelf have

stabilised. Note The duration of the connection process to Sitespan will increase depending

on the size of the subscriber database and the number of cards fitted.

Alarm and Status Indications (Test 3)

1. Verify that the alarms and status indications (LEDs) on the system comply with those

detailed in the following tables.

Note: The following tables are set in order of appearance on the front of the card

reading from top to bottom.

XTU

Position

Colour Description Status

Printed Documentation

TOP

1 Red Card failure LED, which shall be alight if the

card self test fails, or if commanded by the

SC.

OFF

2 Green Card busy LED, to indicate live traffic is

present and should not be removed. ON

3 Red/yellow

E1/T1 port 1 Alarm *

4 Red/yellow

E1/T1 port 2 Alarm *

5 Red/yellow

E1/T1 port 3 Alarm *

6 Red/yellow

E1/T1 port 4 Alarm *

7 Red/yellow

E1/T1 port 5 Alarm *

8 Red/yellow

E1/T1 port 6 Alarm *

9 Red/yellow

E1/T1 port 7 Alarm *

10 Red/yellow

E1/T1 port 8 Alarm *

LED Yellow if 2Mbit/s is being received with some other alarm condition. (e.g. remote

alarm or sync fail) being sent, Red if 2Mbit/s not received..

PTU

Position Colour Description Status

TOP 1 Red Card failure LED, which shall be alight if the card

self test fails, or if commanded by the SC. OFF

2 Green OK card is active. ON

3 to 8 Not used OFF

9 Orange

100 Mbit/s See

Note

10 Orange

Active (Ethernet Present) OFF

11 Orange

Full (12 RWs allocated) OFF

12 Green Packets being Received OFF

13 Green Packets Transmitted OFF

14 RED Ethernet Collisions ON

Note the LED is on when connected at 100Mbit/s and off at 10Mbit/s

Position

Colour

Description Status

TOP

1 Red Card failure LED, which shall be alight if the card

self test fails, or if commanded by the SC. OFF

Setup and Test

2 Green Card busy LED, to indicate live traffic is present

and should not be removed. OFF

Position

Colour

Description Status

TOP

1 Red Card failure LED, which shall be alight if the card

self test fails OFF

OK Card is Active.

PSU

Position Colour

Description Status

TOP 1 Red FUSE FAIL: Illuminated if either input fuse has

blown. OFF

2 Green OK Card is Active. ON

3 Red I/P A FAIL input voltage A (BATTNEG0) not

present OFF

4 Red I/P B FAIL input voltage B (BATTNEG1) not

present OFF

5 Red O/P OVERLOAD. OFF

6 Red O/P UNDERLOAD OFF

Access Concentrator Shelf Card LED Indications.

Self Test (Test 4)

1. Select CTU card on shelf view double click the card, or click right mouse button and

select Airspan (card type) View

2. Execute the self test function (using Netspan) on each CTU card and ensure that it

passes. Replace any faulty cards.

Test CTU cabling to the DDF E1 Cards

1. Using Netspan create a CT rack with a dummy modem shelf.

2. From the Edit AC Shelf Properties screen assign E1-1 to the newly created CT shelf.

3. A red alarm should appear on the CTU card for the E1 activated.

4. Loopback TX to RX for the E1 (T1) at the DDF. Check that the alarm clears (the

amber remote alarm is lit for several seconds before clearing).

5. Reassign the CT shelf to E1-2, E1-3 and E1-4 in turn and repeat steps 3 and 4 (E1-5

to E1-8 for 120ohm connection).

6. Repeat steps 1 to 5 for CTUs in slots 5 and 6 if fitted.

Test CTU cabling to the Distribution Frame (DDF) GR303 Cards.

Printed Documentation

100

1. Using Sitespan create a CT rack with a dummy modem shelf.

2. From the Edit AC Shelf Properties screen assign T1-1 to the newly created CT shelf.

3. A red alarm should appear on the CTU card for the T1 activated.

4. Loopback TX to RX for the T1at the DDF. Check that the alarm clears (the amber

remote alarm is lit for several seconds before clearing).

5. Reassign the CT shelf to T1-2*, T1-3, T1-4, T1-5, T1-6, T1-7 and T1-8 in turn and

repeat steps 3 and 4.

6. Repeat steps 1 to 5 for CTUs in slots 8 and 9 if fitt

Test XTU cabling to the DDF

1. Test one XTU at a time.

2. Activate all E1s/T1s for the chosen XTU card.

3. Check that 8 red LEDs appear on the front of the card (Netspan should also indicate

the E1/T1 alarm.)

4. Loopback each E1 in turn and check that the corresponding alarm for that channel is

cleared. (Note: the amber remote alarm is illuminated for several seconds before

clearing.)

5. Remove all jumper links and disable all E1s/T1s.

6. Repeat steps 2-5 for each XTU fitted.

Connecting the AC to the Network

(this section applies only if the AC has been configured using a local Laptop PC)

1. Ensure the NMC administrator has entered all the AC shelf configuration in the

Netspan/Sitespan Server.

2. Within the AC Shelf Properties window, enter the

 Port: (should be the NMC PC COM port the AC shelf is connected to)

 TEI: (should be set to the pre-determined setting allocated at the planning stage)

 Leave other data fields unchanged.

3. Select OK to complete the configuration process.

4. DISCONNECT THE LAPTOP PC CONNECTION TO THE AC SHELF AND

RECONNECT THE NMC CONNECTION TO THE SHELF.

5. Call in the NMC and ensure the AC shelf is seen at the NMC system. From the Shelf

Object List view, the AC shelf should be in CONNECTED and DOWNLOADING state.

Connect E1s/T1s to the Switch or Cross-Connect at the DDF

1. If V5.1 interface is being used then the NMC administrator should enable the V5.1

interface. From the AC shelf equipment view, select the XTU card and use Edit-

>AS4000 DA V5.1 XTU

2. Connect the required E1s/T1s to the Switch or Cross-Connect using jumper cables at

the DDF.

3. All the E1/T1links should be enabled on Netspan at the NMC.

4. From the AC shelf equipment view, double click on the XTU card. This will open the

card view window. Check the E1/T1 connection to the switch is working; E1/T1-Loss

of Signal and E1/T1- Loss of FA alarms are cleared.

Setup and Test

101

5. On V5.1 cards, from the corresponding E1/T1, select Switch to New and then Re-

establish to activate the V5.1 interface with the switch. If the V5.1 interface is not

indicated as active in the XTU Card View the switch authority must be contacted .

6. On V5.2 cards from the corresponding E1/T1, select Switch to New. If the V5.2

interface is not indicated as active in the XTU Card View the switch authority must be

contacted.

7. On CAS systems check alarms are clear.

This concludes the setting up at the access concentrator. The CT site can now be

commissioned.

Printed Documentation

102

Access Concentrator Rack Commissioning Test Results

Please photocopy test results sheet for use with each system

CUSTOMER:

SITE LOCATION:

RACK ID:

ENGINEER:

DATE:

1. Commissioning Test Results

Test Equipment Calibration

Item

Description Model

Serial

No Calibration

Date

1 Digital

Multimeter

Serial Number and Rev Level Record

Rack ID

AC Shelf 1 Card Type Serial Number Rev Level

PSU 1 PSU

PSU 2 PSU

SC SC

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

AUX 7

AUX 8

AUX 9

AUX 10

AUX 11

AUX 12

Setup and Test

103

AUX 13

AUX 14

Rack ID

AC Shelf 2 Card Type Serial Number Rev Level

PSU 1 PSU

PSU 2 PSU

SC SC

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

AUX 7

AUX 8

AUX 9

AUX 10

AUX 11

AUX 12

AUX 13

AUX 14

Test Results

Rack ID

TEST

# TEST LIMIT RESULT

Site Inspection & Verification

T1/E1 Shelf 1

Printed Documentation

104

Cabling

Shelf 2

System Commissioning Tests

Exchange DC Voltage Supply

Test

Exchange DC Voltage Supply

-21.8 to -60.0V DC

Exchange DC Voltage Supply

Test

Exchange DC Voltage Supply

-21.8 to -60.0V DC

5V DC  250mV

3.3V DC +0mV-300mV

AC Shelf 1 PSU1

2.1V DC+0mV-100mV

5V DC  250mV

3.3V DC +0mV-300mV

AC Shelf 1 PSU2

2.1V DC+0mV-100mV

5V DC  250mV

3.3V DC +0mV-300mV

AC Shelf 2 PSU1

2.1V DC+0mV-100mV

5V DC  250mV

3.3V DC +0mV-300mV

Test

AC Shelf 2 PSU2

2.1V DC+0mV-100mV

TEST

# TEST LIMIT RESULT

Power Up and Self Test

AC Shelf 1

Alarms and

Indications

PSU 1

PSU 2

SC Card

AUX Cards (if

fitted)

Pass /Fail

Test

AC Shelf 2

Alarms and

Indications

PSU 1

PSU 2

SC Card

AUX Cards (if

fitted)

Rack ID

Setup and Test

105

TEST

#. TEST RESULT

SC Card

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

AUX 7

AUX 8

AUX 9

AUX 10

AUX 11

AUX 12

AUX 13

AC Shelf 1

System Configuration

Self test from Netspan

AUX 14

SC Card

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

AUX 7

AUX 8

AUX 9

AUX 10

AUX 11

AUX 12

AUX 13

Test 4

AC Shelf 2

System Configuration

Self test from Sitespan

AUX 14

Printed Documentation

106

Setup and Test

107

AS4000 CT Setup and Test

Turn-Up and DC measurements

Before commencing the turn-up of the rack, check that the serial number and Rev levels

of all cards have been entered into the test form.

Disconnect the Antenna.

Rack Turn-Up and Measuring Input Voltage (Test 1a)

This section describes the procedure for measuring and connecting DC to the rack,

checking that the cards have the correct alarm indications on power-up and measuring the

PSU output voltages.

Using the DMM measure and record the Exchange DC voltage supply across the input

terminals ( 1(+) & 2 (-).for Supply 1 and 3(+) & 4 (-).for supply 2). Check that the polarity is

correct and ensure that the voltage measured complies with the site nominal voltage and

is within the limits specified on the test results sheet.

Switching on the racks. (Test 1b)

CT Rack: Combiner Shelf

Place one PSU in the shelf. Switch the CT Combiner Rack ON by placing one breaker on.

The two breakers duplicate power to each shelf and the shelves will still function if one

power supply fails though the LED indicators on the power supplies will not be on. The

PSU should show a amber LED and the fail LED. Switch on the second breaker and the

Red LED should extinguish.

Switch off and place the second PSU in the shelf and repeat the process described in

paragraph 1.

Using the DMM check that the DC voltage supply across the input terminals (1+ & 1- for

Supply 1 and 2 + & 2- for supply 2) is still within the specified limits and record on the test

results sheet.

Measure the DC voltage at the front panel test points on each of the PSUs on the RF

Combiner Shelf. Ensure that the voltage measured is +13.5V DC +/- 500mV. Switch both

breakers off. Record the result.

Place a PA into the shelf to provide a load. Switch both breakers on and measure and

record the DC voltage at the o/p of each PSU.

Using the DMM, measure a the DC voltage at the front panel test points on each of the

PSUs on the RF Combiner Shelf. (Figure 35)

Ensure that the voltage measured is +13.5V DC +/- 500mV.

Printed Documentation

108

Combiner Shelf PSU.

Setup and Test

109

Commissioning the Central Terminal

Setting up Site Configuration on Netspan

This procedure is used to set-up the Central Terminal for commissioning and does not require

the back-haul to the Access Concentrator Site to be installed.

To commission the AC Shelf the Shelf must be either

 connected via an RS232 interface to a Sitespan server on a Laptop PC. However the

settings made during the setup process must be transferred to the NMS Netspan

before it server is connected. or values set within the shelf during this process will be

overwritten by Netspan when it is connected as the values stored at the AC will be

written into the SC Shelf Controller of the shelf.

 connected via an RS232 interface to a Sitespan server located with and connected to

the Netspan Server Machine.

 connected via the backhaul to the AC that is connected to the Sitespan Server.



Physically inspect the rack and check that the details of the serial numbers and rev levels

have been recorded when the cards were installed. Check that cards have not changed since

installation. If cards have changed add details to the test form.

Before the commissioning of the CT racks, the system should be built using Netspan or

Sitespan Version 7.15 or later be installed on the dedicated PC (Laptop).

For details on setting up Netspan and the Sitespan server interface see topic in the

Netspan section. Note Always check that the version of Netspan matches the revision level

of the Netspan at the management system and is suitable for the version level of the SC card

application and boot code in the shelves to be commissioned.

Setting the TEI and Baud Rate for Sitespan Connection

1. Connect PC using AS7030 SiteStart software to the LAT port on the front of the shelf

controller of the Shelf being commissioned..

2. Set the TEI to the value designated during system planning. The TEI number must be

unique to the Network managed by Sitespan.

3. Set the Baud Rate for connection. The same rate must be set when setting up CT

Shelf Properties later in this commissioning process.

4. Build the system using Sitespan or Netspan (see Sitespan/Netspan user guide)

 Create Site and Rack

 Create Modem Shelves

 Create DTU Card

 Configure Modem Shelf

 Connect Netspan to the Modem shelf under test.

Check that Sitespan is communicating with the shelf. The SC alarm on Sitespan clears and

shows downloading and then connected ready. In the shelf view all cards should be green.

CT Shelf Controller Software Downloads

1. Verify that the required software is loaded onto the CT shelf

Printed Documentation

110

2. If required download the appropriate software by following the software download

procedure (see Software Download)

3. Re-boot the Shelf by clicking the Reset Shelf button on the shelf controller view.

Check Boot Sequence

1. SC card boots-up and displays the following LED sequence:

a. Red & green LEDs both ON

b. All LEDs OFF

c. Green LED FLASHING

d. Green LED ON

e. The red LED temporarily comes ON

2. All the cards on the shelf now boot-up.

3. The DTU cards should display the following LED sequence:

Note: The boot-up procedure for these cards takes approximately 15 minutes.

a. Red LED, amber LEDs & green surface mount LEDs all ON. Green LED

FLASHING

b. Red LED ON, green LED FLASHING, amber LEDs OFF & green surface mount

LEDs showing download progress.

c. Green LED ON, green surface mount LEDs indicate card configuration as shown

below

LED DTU

1 Top OFF

2 OFF

3 ON

Bottom

OFF

The rest of the cards display the following LED sequence:

Note: The boot-up procedure for these cards takes a couple of minutes

a. Red LED ON & green LED FLASHING

b. Green LED ON

 If the cards do not boot-up correctly, i.e. any of the cards display a flashing red or

continuous red LED only, follow the procedure in case of Card boot-up failure

Note. Some early demo system and field trial T1 TU cards may fail to boot on initial

power up, and it may be necessary to unplug and re-insert the card to initiate the boot

sequence. If the card does not reboot then the Eprom in the card should be re-blown.

Alarm and Status Indications (Test 3)

1. Verify that the alarms and status indications (LEDs) on the system comply with those

detailed in the following tables.

Note: The following tables are set in order of appearance on the front of the card

reading from top to bottom.

Setup and Test

111

RF Combiner Shelf

Low Noise Amplifier

Position Colour Description Status

Top 1 Amber Power/Module Status OK ON

2 Red Power Fault OFF

RF Card [RF]

Position

Colour Description Status

Top 1 Amber Power/Module Status OK ON

2 Red Power Fault OFF

Shelf Monitor

Position

Colour Description Status

Top 1 Red Power Fault/PA Module Fault OFF

2 Amber Power/Module Status OK ON

Power Amplifier[PA]

Position Colour Description Status

Printed Documentation

112

Top 1 Amber Power/Module Status OK ON

2 Red Power Fault/PA Module 1 Fault OFF

3 Red Power Fault/PA Module 2 Fault OFF

* PA 2 is inserted inverted and the alarm indicators are also inverted

Power Supply Unit [PSU]

Position

Colour Description Status

Top 1 Amber Power OK ON

2 Red Power Fail OFF

Table. RF Combiner Shelf Card LED Indications.

Modem Shelf Card LEDs.

In normal state all LEDs will

MODEM

Position

Colour Description Status

TOP

1 Red Card failure LED, which shall be alight if the

card self test fails, or if commanded by the SC.

OFF

2 Green Card busy LED, to indicate live traffic is

present and should not be removed. ON

Setup and Test

113

3 Green Link failure Trinity 1 OFF

4 Green Link failure Trinity 2 OFF

5 Green Link failure Trinity 3 OFF

6 Green Link failure Trinity 4 OFF

7 Green Link failure Trinity 5 OFF

8 Green Link failure Trinity 6 OFF

9 Green Link failure Trinity 7 OFF

10 Green Link failure Trinity 8 OFF

11 Green Link failure Trinity 9 OFF

12 Green Link failure Trinity 10 OFF

13 Green Link failure Trinity 11 OFF

14 Green Link failure Trinity 12 OFF

DTU

Position

Colour Description Status

TOP

1 Red Card failure LED, which shall be alight if the

card self test fails, or if commanded by the

SC.

OFF

2 Green Card busy LED, to indicate live traffic is

present and should not be removed. ON

3 Red/Yellow

E1/T1 port 1 Alarm *

4 Red/Yellow

E1/T1 port 2 Alarm *

5 Red/Yellow

E1/T1 port 3 Alarm *

6 Red/Yellow

E1/T1 port 4 Alarm *

7 Red/Yellow

E1/T1 port 5 Alarm *

8 Red/Yellow

E1/T1 port 6 Alarm *

9 Red/Yellow

E1/T1 port 7 Alarm *

10 Red/Yellow

E1/T1 port 8 Alarm *

LED Yellow if T1/E1 signal is being received with some other alarm condition. (e.g. remote

alarm or sync fail) being sent, Red if T1/E1 signal not received.

Position

Colour

Description Status

Printed Documentation

114

TOP

1 Red Card failure LED, which shall be alight if the card

self test fails, or if commanded by the SC. OFF

2 Green OK Card is Active.. ON

Position

Colour

Description Status

TOP

1 Red Card failure LED, which shall be alight if the card

self test fails OFF

OK Card is Active.

PSU

Position

Colour

Description Status

TOP

1 Red FUSE FAIL which shall be alight if either input

fuse has blown. OFF

2 Green OK Card is Active. ON

3 Red I/P A FAIL input voltage A (BATTNEG0) not

present OFF

4 Red I/P B FAIL input voltage B (BATTNEG1) not

present OFF

5 Red O/P OVERLOAD. OFF

6 Red O/P UNDERLOAD OFF

Self Test (Test 4)

Execute the self test function (using Netspan) on the DTU cards and ensure that they pass.

Replace any faulty cards.

System Soak

It is necessary that the system is powered up for at least two hours to allow for

temperature stabilisation before proceeding with the measurement of the TX power

commissioning

Note: If proceeding to commissioning the DACU should be powered up and allowed to

warm up for 30 mins prior to setting the RX sensitivity.

Setup and Test

115

Measuring Central Terminal TX Power

The recommended single user TX output power is +18dBm for 3.4-3.6GHz, +20dBm for 1.8-

1.9GHz, and +21dBm for all other bands. This procedure is used to measure the TX output

power when set up for 3 Users.

Note: If proceeding to commissioning the DACU should be powered up and allowed to warm

up for 30 mins prior to setting the RX sensitivity..

This procedure is for setting up AS4000 shelves only.

Tools and equipment needed.

Item

Description Recommended Model Quantity

1 50 ohm Termination 10W

ArraN9510 1

2 RF Power Meter Anritsu Sitemaster S400A or

Marconi 6970 1

3 Power Sensor Anritsu 560-7N50B or Marconi

6932 1

4 Attenuator for use with

Anritsu HP 8491 (N Type) 1

Test TX Output Power (Test 5)

Note: If adding a shelf to a rack that is already in service it is necessary to

remove any shelf sharing the power amplifier from service in order to make

power measurements. This is best done when traffic loading is at its lowest

In order to commission the output power of the rack, a Power Meter must be

connected via a power sensor to the N-Type connector on the DIP/LNA at the top of

the rack. Protect the meter by connecting a 30dB attenuator (HP 8491) to the output

of the DIP/LNA as the output power can exceed 33dBm.

1. Note: The output from shelves 1 and 2 is measured on DIP/LNA1. The outputs from

shelves 3 and 4 are measured on the DIP/LNA2. The port not under test should be

terminated with a 10W termination.

Printed Documentation

116

Figure Power Level measurement Test Set-Up

Measure the output of shelf 1. (This test is repeated for other installed shelves)

1. Remove the RF cards for all but the shelf being commissioned

2. Connect Sitespan to the shelf under test. See Connection to Sitespan

3. Open The DTU Card View and click the Commission Button. This button places the

shelf into an internal commissioning test mode. This button is clicked before the

commissioning procedure is started. This turns of the Link Acquisition and Call

Control Channels off.

Setup and Test

117

4. Open the DTU card properties. Set any 4RWs to OOS160k and the remainder to

OOS (These can be selected from the by clicking the mouse on the state to cycle

through the options).

Printed Documentation

118

5. View the Modem Shelf Properties using Sitespan. Set the TX and RX gain to 0(zero)

6. Ensure that a 30dB attenuator is connected to the power sensor if required to protect

the sensor.

7. Calibrate/set-up power meter according to manufacturers instructions.

8. Connect the power sensor at the top of the rack as per diagram

9. Measure O/P power and ensure the level is less than -20dBm

10. Adjust TX Gain for the band of the system under test. Start with the TX gain set to

3300. Adjust the value up or down to obtain a reading as shown in the table below. This is

equivalent to 4 users at 160k. Remember to take into account the value of any attenuation

used to protect the meter.

Band Reading

1.8-1.9GHz +26dBm

Setup and Test

119

2.0-2.3GHz +27dBm

2.3-2.5GHz +27dBm

3.4-3.6GHz +24dBm

11. Set RW1 to OOS(160K) and all other RWs OOS

12. Measure the output power: ensure the level is as in the table below

Band Reading

±1dB

1.8-1.9GHz +20dBm

2.0-2.3GHz +21dBm

2.3-2.5GHz +21dBm

3.4-3.6GHz +18dBm

13. Repeat power reading for single RW OOS(160k), for all other individual RWs

14. Record the result (see Test Results)

15. On the DTU card view click the End Commissioning button (this re-activates RWs

14 & 15 and sets all RWs IS.

16. Repeat for all other modem shelves.

Printed Documentation

120

Procedure in case of card boot-up failure

If the cards inserted into the shelf do not boot-up, the top red LED on the card will be either

continuously ON or FLASHING. The following steps should be followed:

1. Check cards are properly inserted into the shelf, in the correct positions

2. Reset the SC card using Netspan/Sitespan, under the card view.

3. The cards boot-up. If the cards do not boot-up try and reset the shelf backplane

configuration. Download the SetTUinv.txt to the SC. Ensure they are available before

continuing.

4. Disconnect Netpan from the shelf containing cards that will not boot-up.

5. Connect the LAT cable to the SC card

6. Send the text files for the correct shelf, one after another using Terminal.

7. Once completed, type the following:

TI 118

EA 118:0/119:0

ES 0

8. Wait 2 – 3 minutes for the process to complete.

9. Reset the SC by shorting Pins 2 & 3

10. Wait for 3 minutes: After 3 minutes the Shelf Controller has a green LED ON, and all

the other cards have FLASHING red LEDs

11. Re-Connect Netspan /Sitespan

12. The cards on the shelf boot-up. If the cards do not boot-up, then it is likely that one of

the cards is faulty. Try replacing one of the cards and starting the procedure again.

Setup and Test

121

Setting RX sensitivity using DACU 2.0-2.3GHz & 3.4-3.6GHz

Band

(Test 6) If a DACU is not available use Setting RX Sensitivity without DACU

Preparation for commissioning at the Central Terminal

1. The DACU should be powered up and allowed to warm up for 30 mins to achieve

stability prior to setting the RX sensitivity. For details on setting up the DACU see

Connecting the DACU

2. Enter the loss values in the DACU calibration chart for the relevant frequency See

chart below.

3. Calculate/determine total path loss and required DACU output power and hence

power meter reading.

4. Connect cables and equipment as per diagram below

5. Ensure that the commissioning button is off. This should have been done at the end

of the TX Gain set-up but it is prudent to ensure that it has been switched off. Switching off

resets the DTU card, reactivates RW14&15 for link acquisition, and sets all RWs in service.

Note: The DTU card view shows all of the RW codes, and their current state within the system

(i.e. OOS or IS).

6. Create an ST on Netspan. See Netspan Section

7. Configure test ST using AS7020STMON according to modem shelf properties to the

correct frequency, PN code and ID number.

8. Allow test ST to acquire link and net enter to “warm” state

9. Using the ST Line List, set loopback mode on both lines to enable 160k high rate

operation.

10. Measure the DACU o/p level

11. On Modem Shelf Properties, set RX gain to achieve required ST o/p level as

calculated in step 4 for –98dBm receiver sensitivity Adjust the 'RX Gain' by increasing and

decreasing the values.

12. Note: To start with, set the RX gain to around 2200. ( if value is reduced power goes

UP). The values may be set by typing in a new value or by using the up and down arrows at

the side of the box. The ST power changes in steps of approximately 0.7dB and the nearest

value to the required value. A single step on the gain value may not produce any change so

start with larger values and through a number of iterations home in on the correct setting.

Note: Levels are updated only when the OK button is clicked. Check the output power of the

DACU, and repeat until the output power matches that in the DACU Calibration Table.

Printed Documentation

122

14. Record results in test results sheet

15. Power off the DACU.

16. Put all RWs back in service.

Restoring shelf connections

1. Remove the test equipment and connecting cables.

2. Replace the Shelf covers and the protective cap on the coupler.

3. Do not remove the Sitespan connection at this time.

Entering Test values into Netspan

The values of the TX Transmit and RX gain must be set into the Netspan at the Network

management Centre before the backhaul is connected to the CT, failure to do this results in

the TX power and RX sensitivity values being overwritten by the value stored in the Netspan

Server.

Connecting CT, AC and NMC

At this point, ensure the NMC has the site equipment created in the master database and the

V5.1 interface activated. It should show an alarm on the E1 connection to the CT shelf.

1. Contact the NMC administrator, and pass the CT shelf Transmit Power and Receiver

Level settings to the administrator for updating the master database.

Warning: When Netspan is reconnected to the CT the values of the TX and RX

levels stored at the NMC will be written to the SC of the modem shelf and Netspan

should not be reconnected until the NMC has updated its database with the correct

Transmit and receive level settings.

2. The CT shelf connected to the LAPTOP should be in ‘UNCONNECTED’ state. This is

because the shelf is expected to get its data from the remote management system.

3. Reconnect the E1/T1 links to the CTUs/DTUs.

4. At the AC Connect Netspan backhaul to the NMC. If using a router fit RS232 9 way

to Async RJ45 adapter to the Netspan port used to backhaul to the server. Connect Sitespan

Port 1 (AC Backplane) to Management Network (ports allocated on Cisco Router).

5. Call the NMC and ensure the commissioned shelf is in ‘connected’/ ‘downloading’

state and the E1/t1 alarm on the CTU is cleared.

6. Remove Modem card and check that the alarm is seen in Netspan’

Setup and Test

123

Setting RX Sensitivity without DACU

Tools and equipment needed.

Item

Description Recommended Model Quantity

1 Digital Multimeter Fluke 77 1

2 ST Test Unit, SIU with Modified Antenna at

appropriate band 1

3 30dB Attenuators; 5W Mini Circuits: BN-N30W5 2

4 30dB Attenuators; 2W M/A-COM:2082 6044 30:2W 2

5 Two Way Power

Divider Mini Circuits: ZAPD-4-S 1

6 50 ohm Termination

10W Arra N9510 1

7 Adaptor; N-SMA Huber & Suhner 33N-SMA-50-1 1

8 Adaptor; N-SMA Huber & Suhner 31N-SMA-50-1 1

9 Huber & Suhner Sucoflex 104; 0.5m 2

Co-ax Cables

Huber & Suhner Sucoflex 104; 4.0m 1

11 Cable SMA-MCX Huber & Suhner 30-05918-10 1

12 RF Power Meter Marconi 6970 1

13 Power Sensor Marconi/RFI 6970&5 6932/900 1

RX Sensitivity (Test 6)

1. To set the receive sensitivity, first set up a test network for the band under test as

shown below. The figure below show the test equipment connected directly to the

outputs of the DIP/LNA and DIP/LNA2 as would be the case for systems without a

RFcoupler.

Printed Documentation

124

Test Set-up

2. Measure and calibrate the loss of all components as per diagram above:

3. Measure (1)A-B, (2)B-C, (3)C-D and (7)D-E.

4. Enter values in calibration chart for the relevant frequency.

5. Calculate/determine overall path loss and required ST output power and hence

required power meter reading.

6. Connect cables as per diagram above.

7. Ensure that the commissioning button is off. This resets the DTU card, reactivates

RW14&15 for link acquisition, and sets all RWs in service

8. Create ST on AC ST list

9. Configure test ST using AS7020STMON according to modem shelf properties to the

correct frequency, PN code and ID number.

10. Allow test ST to acquire link and Net Enter to “warm” state

11. From ST properties, set loopback mode to enable 160k high rate operation

12. Measure ST TX o/p level

13. On Modem Shelf Properties, set RX gain to achieve required ST o/p level as

calculated in step 4 for –98dBm receiver sensitivity

Note: To start with, set the RX gain to around 2200 and click right mouse

button at the side of the RX Gain Box to increase and decrease reading at the

power meter. Check the output power of the ST, and repeat until the output

power reaches the required level

14. Record results in test results sheet

Setup and Test

125

BER Test

The BER test is best done from the network management centre but if a management centre

backhaul has not yet been established the test may be performed at the AC site and should

be set up by connecting Local Netspan/Sitespan to AC Rack, building site locally and create

subscriber.

Setting up system tests at the Access Concentrator.

Create CAS XTU in a spare slot (slot 10 if spare).

Create CAS subscriber in Sitespan. Note the timeslot and E1 link used.

Fit CAS TU card to the shelf in the configured slot. Fit CAS TU card to the shelf in the

configured slot.

Setting up Test ST.

To perform overall system tests a test ST should be set up. The ST should be located

1 to 5 km from the CT in the centre of the lobe served by the CT. Set up using details

to match the RF channel, PN code and ST-ID for the CT sector to be tested.

Screen captures of the RF analysis may be taken and pasted into a document for

confirmation of the relative signal strengths.

Check for the ST to acquire a link and use STMON to ensure that the frequency

acquired is that of the CT and not that of an adjacent signal. (see STMON User Guide

for details of checking the channel.)

For Information on setting up a subscriber terminal see 605-0000-505. Subscriber

Terminal installation and commissioning.

Measuring BER

This process can be carried out at the Access Concentrator and loopback at the ST or

if using a Data ST the test may be performed at the L series ST and a loop applied at

the Exchange

a) Testing at the Access Concentrator

Connect BER Tester to E1 in link on the shelf backplane (or Type 43 converter module

if used) set above and inject a 64K Pseudo Random Pattern 215-1in the timeslot set

above.

Put a Loop on the ST from Netspan (In the ST Line List. check the Loopback box and

click OK).

Note: The loopback is dropped if the link fails or the ST power is cycled To reapply the

loopback the loopback tick box should be cleared and the OK button clicked. The

loopback should then be re-applied by re-checking the loopback tick box and clicking

the OK button.

Printed Documentation

126

The presence of the loopback should be seen at the BER test set. Inject 1 error into

the test signal and observe it on the incoming signal to check that errors are detected.

Start and stop the test to clear the injected error.

Observe the return signal on the T1/E1 out to establish that the link is error free. Run

BER test for 1 Hour.

On completion of the test remove the loopback (open the Edit DA ST window and click

the Loopback box to remove the tick and click OK.)

Delete CAS subscriber in Sitespan, and delete CAS XTU.

b) Testing at the Subscriber Terminal if L Series SIU used.

An alternative method of testing the BER of a link from a CT to an ST is to provide a

hard wired loopback on a selected E1/T1 port on a Data XTU Card at the AC site. By

using an ST-L128 or ST-l64, 128kbit/s or 64kbit/s data rates may be tested using a

BER tester at the ST location. The advantage of this method is that there is no need to

have a person at both the AC site and the ST test location

Note. A suitable data cable from the BER test set is required. Most BER test sets

provide V.35 or X.21 synchronous interface options.

Power for a prolonged test may be a problem in field locations . An inverter running

from a vehicle 12V supply may be used for tests of up to 1 hour with the ST powered

directly from the Vehicle battery Place a physical loop on the E1/T1 at the

AC/Exchange.

At the AC site: Loopback E1 link on Data XTU card. (loop on shelf backplane or DDF)

At the Subscriber Terminal: Connect BER test set to the ST.

The presence of the loopback should be seen at the BER test set. Inject 1 error into

the test signal and observe it on the incoming signal to check that errors are detected.

Start and stop the test to clear the injected error.

Observe the return signal on the E1/T1 out to establish that the link is error free. Run

BER test for 1 Hour.

On completion of the test remove the loopback and re-connect the E1/T1.

Delete test data subscriber in Netspan.

Setup and Test

127

Setting the System into Service

Checking alarms and connections to Netspan

At the AC Test the RS232 disconnect alarm by disconnecting the adapter on Sitespan port I.

Pull card and check alarm is visible at NMC.

At the NMC set the free list entries. For details on setting free list entries see the Netspan

Help File

Note System Optimisations to the configuration that improve Net entry time

 Ensure that the number of net-entry channels is set to around 6 for a shelf running

medium/ large deployments of voice service. The only constraint to be borne in mind is

that each channel used for net-entry is not available for traffic, so you need to be careful

about not over-provisioning the number of net entry channel if the shelf has a large

proportion of data / ISDN STs (which operate in a fixed-assigned mode).

 Make certain that any STs that are created in the database before deployment are

marked 'out-of-service'. If they're not, on every cycle through the database, the system is

trying to net-enter STs that don't exist.

Test Call

1. Connect the AC port to Switch (ensure V5.1 link and cards configured).

2. Create a V5.1 DA Subscriber Terminal using Netspan and place the ST in service.

Check L3 address unblocked and define phone number.

3. Configure the test ST with the ST Id PN number RF channel and phone number (as

set at NMC).

4. Wait for ST to acquire a link (STMON can be used to monitor progress). Check for

dialtone.

5. Using a telephone make test call from the test ST over the system. Check for both

way transmission and absence of noise and interference.

6. Solicit an incoming call from the NMC or another phone and again check the quality

of the call

The tests should be completed for all other shelves commissioned on the same base

station.

At the completion of all tests remove all test cards from the shelf

BER Tests

See Topic BER Tests

Packet Testing

See Topic Packet System Testing

Site inspection and test card removal

When the BER and call tests are completed for all other CT shelves relating to an AC site

(may have 1 or more AC shelves) remove all test cards from the AC shelf and delete all test

STs from Netspan

At the AC and CT sites check all work areas are free of debris i.e. cable off-cuts, braid, dust

and packaging and that the site is as found.

This completes the system commissioning

Printed Documentation

128

AS4020 CT Setup and Test

AS4020 Menu Map

The system parameters are set from the front panel of the AS4020

The chart below shows the menu layout

Setup and Test

129

Printed Documentation

130

AS4020 error messages

The List below shows error message codes that are reported to the front panel of the AS4020

Code Meaning

0 the image being loaded has a magic number that

identifies it, this number has been corrupted.

1 the image has a build information header, (not the

Airspan file header), attached containing which has

an associated checksum, this is corrupted.

2 the image being loaded has a checksum calculated

that is different to the one stored in the header.

3 the image has been built for the wrong architecture.

4 the image being loaded is not a kernel image.

5 the image has been compressed using an

unrecognised method.

6 the image is of the wrong type, not a standalone or

multi-image.

7 the image loader has exited due to internal error.

8 shutdown initiated from boot code.

9 the flash file system is corrupted.

10 the image being loaded is not a RAMDISK.

11 CPU fan failure detected.

12 router fan failure detected.

13 over temperature detected. see Note 1

14 kernel panic

Note 1

If a "system halted, code=13" message on the LCD this can mean more than just a cpu fan

failure, to determine which fan/thermal error caused the halt, run up system while logging the

output from the front panel port marked 232, the last message before the system stops should

be one of these :-

"cpu temp = XXXdegC, shutting system down...."

"router temp = XXXdegC, shutting system down...."

"summer temp = XXXdegC, shutting system down...."

"psu temp = XXXdegC, shutting system down...."

"cpu fan slow, shutting system down...."

Additionally, if a chassis fan is misbehaving the following message is displayed :-

"chassis fan X slow, setting all other fan pwms to max"

where XXX is some appropriate value.

Setup and Test

131

Set Traffic/Management Ports

The traffic port connects to the Ethernet connecting to the internet service provider and the

management port connects to the Netspan server.

Enter the following parameters from the front panel of the AS4020. The values are

determined by the server that the network is connected to.

IP address = in the form xxx.xxx.xxx.xxx i.e 192.254.130.030

Subnet mask = in the form xxx.xxx.xxx.xxx i.e 255.255.000.000

Gateway address = may be used if management is on another network else set to

000.000.000.000

Broadcast Address = used for broadcasts and would usually be the network address

and mask so for the IP network above would be 195.254.255.255 but this information

should be provided by the network administrator.

Ethernet Rate. Set to the rate dictated by the network, if in doubt set to Auto

Duplex Mode

Printed Documentation

132

Set NMS Menu

Management Port Num

Port Number used to connect to Netspan

Admin Password

Password protection for the AS4020. When set only authorised persons can make changes to

the AS4020 configuration. If changes are made Via Sitespan a password is requested if set. If

no password is set Netspan still requests a password but any entry will be successful in

allowing access to the configuration.

Setup and Test

133

Set TX Power

The recommended single user TX output power (QPSK/16QAM) is +18dBm for 3.4-3.6GHz,

+20dBm for 1.8-1.9GHz, and +21dBm for all other bands. This procedure is used to measure

the TX output power when set up in commissioning mode 1.

System Soak

It is necessary that the system is powered up for at least two hours to allow for

temperature stabilisation before proceeding with the measurement of the TX power

Tools and equipment needed.

Item Description Recommended Model Quantity

1 50 ohm Termination

10W ArraN9510 1

2 RF Power Meter Anritsu Sitemaster S400A or

Marconi 6970 1

3 Power Sensor Anritsu 560-7N50B or Marconi

6932 1

4 Attenuator for use with

Anritsu HP 8491 (N Type) 1

Test TX Output Power (Test 5)

Note: If adding a shelf to a rack that is already in service it is necessary to

remove the RF card for any shelf sharing the power amplifier in order to make

power measurements. This is best done when traffic loading is at its lowest

In order to commission the output power of the rack, a Power Meter must be

connected via a power sensor to the N-Type connector on the DIP/LNA at the top of

the rack. Protect the meter by connecting a 30dB attenuator (HP 8491) to the output

of the DIP/LNA as the output power can exceed 33dBm.

Note: The output from RF cards 1 and 2 is measured on DIP/LNA1. The output from

RF cards 3 and 4 is measured on the DIP/LNA2. If the AS4020 shelf has been added

to an existing rack then the RF card used must be inserted prior to measuring the shelf

power. The port not under test if not connected to an antenna should be terminated

with a 10W termination.

Measure the output of AS4020. (This test is repeated for other installed AS4020

shelves)

Connect RF meter via a 30dB attenuator on the antenna port to protect the power sensor

from damage.

Configure the AS4020 using the menus on the front panel. From the Top Menu >Setup

Menu >RF Menu set the following values:

Note: The PN code should always be set prior to entering commissioning mode.

RF Menu

TX Clipping 00101

Disable TX and RX False

Downlink Frequency Enter DL frequency kHz with leading 0 e.g 03522751

Printed Documentation

134

Uplink Frequency Enter UL frequency kHz with leading 0 e.g 03522651

Channel Bandwidth 00002 (=3MHz)

PN Code PN code as supplied**

RF Commissioning Mode 1 Note: If in commissioning mode the top menu

displays RF commissioning alarm

Card Type enter card type ( See number on RF card)

RX Sensitivity 02500

TX Power 03000

** The commissioning procedure described in this document is not restricted to any

particular RF channel or PN code. However the user should make sure that both the CT

and ST are programmed with identical RF channel and PN code. At the CT end, the RF

channel and PN code can be selected from the front panel in RF menu. In system

operating Release 7.2x once the user changes the PN code he needs to re-enable the

commissioning mode in order for this change to take effect properly. Release 7.30

however fixes this problem and the user should be able to change the PN code without

the need to re-enable the commissioning mode.

Setup and Test

135

RF Card Cross Reference Chart

RF Card Part

Number AS4020 Card

Type Band

605-0010-296 303-0087-904 3.4-3.6 Plan 13 X6

605-0010-092 303-0087-920 3.4-3.6 Plan 1 X1

605-0010-093 303-0087-920 3.4-3.6 Plan 1 X1

605-0010-102 303-0087-922 3.4-3.6 Plan X3

605-0010-103 303-0087-922 3.4-3.6 Plan X3

605-0010-237 303-0087-923 3.4-3.6 Plan 2 X4

605-0010-238 303-0087-923 3.4-3.6 Plan 2 X4

605-0010-294 303-0087-924 3.4-3.6 Plan 13 X6

605-0010-322 303-0087-925 3.4-3.6 Plan 10 X7A

605-0010-073 303-0093-900 2.0-2.3 Plan C2

605-0010-074 303-0093-900 2.0-2.3 Plan C2

605-0010-069 303-0093-902 2.0-2.3 Plan C1

605-0010-070 303-0093-902 2.0-2.3 Plan C1

605-0010-077 303-0093-904 2.0-2.3 Plan C3

605-0010-078 303-0093-904 2.0-2.3 Plan C3

605-0010-081 303-0093-906 2.3-2.5 Plan S1

605-0010-082 303-0093-906 2.3-2.5 Plan S1

605-0010-075 303-0093-920 2.0-2.3 Plan 2 C2

605-0010-076 303-0093-920 2.0-2.3 Plan 2 C2

605-0010-071 303-0093-922 2.0-2.3 Plan 1 C1

605-0010-072 303-0093-922 2.0-2.3 Plan 1 C1

605-0010-079 303-0093-924 2.0-2.3 Plan C3

605-0010-080 303-0093-924 2.0-2.3 Plan C3

605-0010-352 303-0093-925 2.0-2.3 Plan 5 C4

605-0010-083 303-0093-926 2.3-2.5 Plan S1

605-0010-084 303-0093-926 2.3-2.5 Plan S1

605-0010-163 303-1041-900 1.8-1.9 Plan P

605-0010-122 303-1041-920 1.8-1.9 Plan P

605-0010-295 303-1041-921 1.7-1.8 Plan P

605-0010-330 303-1070-920 3.4-3.6 Plan X1

605-0010-394 303-1070- 3.4-3.6 Plan 10 XHi

605-0010-396 303-1070-924 3.4-3.6 Plan 13 XLo

605-0010-399 303- 2.0-2.3GHZ, Plan 5 C4

Printed Documentation

136

Go to Top Menu >Setup Menu >RF Menu>TX Power

TX power

To set the CT to transmit at QPSK or 16QAM adjust the TX Power until the output of the

transmitter by increasing or decreasing the value until the level tabulated below is

reached. If the CT is required to operate with a downlink of 64QAM then the output

should be backed off by 3dB. Note: This will affect the system coverage and should be

taken into account at the radio planning stage.

Band Power Meter

Reading QPSK and

16QAM

Power Meter Reading for

64QAM

P See Below N/A

X 21.4dBm 18.4dBm

All

other 24.4dBm 21.4dBm

P Band

To comply with FCC requirements for Spurious Emissions at Block Edges, the transmit

power of the CT should be reduced for channels 180, 181, 214 and 215 as detailed below.

Channel

Downlink

(MHz) Uplink

(MHz) Power

Commissioning

mode 1

180 1932.00 1852.00 18.9 dBm

181 1933.00 1853.00 22.4 dBm

182 to

213 - - 23.4dBm

214 1987.00 1907.00 22.4 dBm

215 1988.00 1908.00 19.4 dBm

Record the value and output level.

Set commissioning mode to Off, then set to commissioning mode 3. Check that the power

meter reading increases by 8.7dB (+/- 1dB). If the reading is lower RF compression may

be occurring.

Note if it is required to measure the output power with all the RWs enabled set the CT

commissioning mode to off and then set the commissioning mode to 2. This sets all 13

RWs active. To return to commissioning mode 1 set the CT commissioning mode to off

and then set the commissioning mode to 1. (Note the setting to off is important and it is

not possible to go directly between 1 and 2.)

Setup and Test

137

Set RX sensitivity using a DACU without Calibrated Coupler

This procedure should be used to commission the CT if using a DACU. At the end of this test

a label with the calibrated value should be attached to the coupler. Calibrated attenuators and

cables are provided with the DACU for this test.

The RX sensitivity is set according to the required CT RX level. It is important to note that the

lower the modulation rate the further the geographical spread. For maximum range the

AS4020 should use QPSK 1/2. Higher data rates may be achieved using higher orders of

modulation but the range will lessen as the modulation rate increase. This level is determined

as part of the planning function and takes into consideration the highest modulation rate to be

offered and the noise floor predicted in the planning stage.

The RX Level is set dependant on the highest operational modulation rate as follows. By

undertaking an appropriate level of RF planning the level is optimised in order to balance

uplink data rate and system range.

Typical levels are shown below for two network configuration scenarios:

For networks where only a single RF Channel is operating, or only adjacent + one RF

Channels are used (no co or adjacent channel interference), the following CT Rx levels apply:

Rx Level (dBm / RW) Modulation

Code Rate

Below 3GHz

Above

3GHz

Session

ids for

LAT TE

command

in Mode 3

QPSK 1/2 -105 dBm -103dBm 58 or 59

QPSK 3/4 -103 dBm -101dBm 56 or 57

16QAM 1/2 -97 dBm -95dBm 54 or 55

16QAM 3/4 -93 dBm (see note 1) -91dBm 52 or 53

64QAM 3/4 Not supported on the uplink

Table 1

Note 1: Note, 16QAM ¾ is only supported on the uplink with up to 7RW codes active.

For networks where co or adjacent frequencies are reused to provide “cellular type”

network coverage with limited available spectrum (ie. A relatively high level of co and

adjacent channel interference), the following CT Rx levels apply:

Rx Level (dBm / RW) Modulation

Code Rate

Below 3GHz

Above

3GHz

Session

ids for

LAT TE

command

in Mode 3

QPSK 1/2 -103 dBm -100dBm 58 or 59

QPSK 3/4 -101 dBm -98dBm 56 or 57

16QAM 1/2 -94 dBm -92dBm 54 or 55

16QAM 3/4 -90 dBm (see note 1) -88dBm 52 or 53

64QAM 3/4 Not supported on the uplink

Table 1a

1. The DACU should be powered up and allowed to warm up for 30 mins to achieve

stability prior to setting the RX sensitivity. For details on setting up the DACU see

Connecting the DACU

2. Enter the loss values in the DACU calibration chart for the relevant frequency See

chart below

Printed Documentation

138

3. Calculate/determine total path loss and required DACU output power and hence

power meter reading.

4. Connect cables and equipment as per diagram below using 30+30+20dB calibrated

attenuators. If coupler calibration known set up as in step 9 and go to step 6

5. Zero power meter. Calibrate and apply measurement offset for operational frequency

if applicable.

6. On the AS4020 go to Top Menu >Setup Menu >RF Menu>RX Sensitivity. Set RX to

2500

7. Put AS4020 Shelf into test mode Off and then into test mode 3. (from AS4020 menu

select Setup Menu/RF Menu/RF Commissioning)

8. Configure the DACU using AS7020STMON according to modem shelf properties to

the correct frequency, PN code and ID number prior to entering test mode. If the

frequency can be entered using STMON then the FP command in the step 12 is not

necessary). If coupler calibration known go to step 11. The commissioning procedure

described in this document is not restricted to any particular RF channel or PN code.

However the user should make sure that both the CT and ST are programmed with

identical RF channel and PN code.

9. Using the values of the calibrated attenuators and cable calculate the loss of the

attenuators and cable between the DACU and CT as per diagram above: Note the

power meter reading.

10. Replace the calibrated attenuators with the coupler and note the power meter

reading. If the power meter is more than the previous one then the difference should

be added to the sum of the attenuator values and of less it is subtracted from the sum

of the attenuator values. This new value represents the attenuation of the coupler.

Attach a label with loss value to the coupler.

a Sum of calibrated attenuator losses

b Power meter reading with calibrated

Setup and Test

139

attenuators

c Power meter reading with coupler

d Difference between readings

e Coupler loss

if [c] is greater than [b] then subtract

[d] from [a]

if [c] is less than [b] then add [d] to [a]

Table 2

11. Populate the table below with values obtained from calibrated components and

planned levels to calculate/determine overall path loss and required ST output power

and hence required power meter reading.

RF Channel

No:

Cable Loss(1)

Coupler loss loss.(2)

RF Section

Loss Antenna-

CT( DACU RF Module).(3)

Sub Total (4) = 1+2+3

Required CT RX Level (5) See table 1 above.

DACU RF Power (6)=4+5

RF Section Loss Antenna - Power Meter (7)

Power Meter (8) = 6-7

Table 3

12. Make the test ST transmit by sending the following LAT commands from a terminal

emulator connected to the DACU

TE<space> 0<space> 4<space> 59 (this code sets the uplink modulation rate for the

ST for other required modulations replace the 59 with the session ids shown in table

1 above and should be set to the maximum modulation rate required)

FP <space>channel number (in decimal)

W<space> 0400003C

13. The terminal emulator should receive 0000000B for the uplink if the ST has acquired

a link.

14. On the AS4020 top panel go to Top Menu >Setup Menu >RF Menu>RX Sensitivity

15. Set RX gain by increasing/decreasing the value of RX sensitivity to achieve required

ST o/p level calculated as ( 8) in the table above for the required RX Level measured

on the power meter.

16. Record the value set in the test results

Link check

1. Enable the equalizer by typing the following LAT commands

ADE 1 10 (this enables the downlink channel equalizer and it should converge within

10 seconds)

ADS (this command displays the equalizer stats).

When the equalizer is adapting the stat reports Enabled = 1 Converged = 0

When the equalizer is adapting the stat reports Enabled = 0 Converged = 1 (the 0 for

Printed Documentation

140

enabled does not mean that the equalizer is disabled but that the training of the

equaliser is finished.)

Check that the equalizer converges OK.

2. From the ST LAT type TE1 to exit commissioning mode

3. From the AS4020 front panel exit commissioning mode by selecting RF

Commissioning = Off.

Setup and Test

141

Connecting the DACU

The following cables are provided with the DACU.

Airspan DACU Kitting List

Description Qty Comment

DC Power

Cord 1 Connects the dc power supply from the red and black 4mm sockets

on the DACU, labelled “+” and “-“ to either the IDU dc power jack,

labelled “12V ---- 1.5A”, or an external IDU dc power jack

AC Supply

Cable 1 Supplies mains to the C7 style (figure of 8) mains input on the main

DACU chassis, labelled “AC”

PC Laptop

Cable 1 Connects the 15-way D-Type socket on the IDU, labelled

“MAINTENANCE”, to the 9-way serial port socket on a PC or laptop

IF Link Cable 1 Connects the IF socket on the IDU, labelled with an antenna symbol,

to the IF socket on the RF Module, labelled “IF”

Hexagonal

Key Used to remove/replace the battery cover or RF Module from the

main DACU chassis

Laminated

Kitting /

Connection

sheet

1 A sheet showing a labelled photograph of all the DACU Kit items,

underneath which there is diagram showing how all the interfaces

are connected up.

Connect the cables as shown in the illustration below

Printed Documentation

142

Fit the RF Module

The RF module is inserted into the compartment on the right of the DACU. it is secured using

two hexagonal headed screws.

Airspan RF Module Kitting List

Description Qty Comment

RF Cable (4

metres) 1 Connects the coupler on the CT rack to the SMA socket on the RF

Module, labelled “CT”

Attenuator

(20dB), 5W 1 Direct to combiner (first in line)

Setup and Test

143

Attenuator

(30dB), 5W 2 Second and third in line from combiner

Adaptor (N to

SMA) 1 Needed to connect N-type pads to 4m cable

SMA Torque

spanner 1 To tighten SMA's

Termination

(50 Ohm) 1 Terminates an unused power meter port

Laminated

Kitting /

Calibration

sheet (front)

1 A sheet showing a labelled photograph of all the RF Module Kit

items, underneath which there is a table to fill out all the calibration

details.

Laminated

Pro-forma

worksheet (on

reverse of

above)

1 To calculate overall insertion losses between CT and DACU RF

Module

Marker Pen 1 To fill in calibration details on laminates

Printed Documentation

144

Set RX Sensitivity without a DACU

Tools and equipment needed.

Item Description Recommended Model Quantity

1 Digital Multimeter Fluke 77 1

2 ST Test Unit, SIU with Modified Antenna at

appropriate band 1

3 30dB Attenuators;

5W Mini Circuits: BN-N30W5 2

4 30dB Attenuators;

2W M/A-COM:2082 6044 30:2W 2