4RF XE757M170 Digital Transceiver User Manual Aprisa XE Product Description 8 8 84 NA

4RF Limited Digital Transceiver Aprisa XE Product Description 8 8 84 NA

XE757M170 User Manual PDF Download & Text

User Manual

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Document ID	3575710
Application ID	Gg8XQ7ZVBstxBDEazYzAzg==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	344.45kB (4305635 bits)
Date Submitted	2017-09-22 00:00:00
Date Available	2017-09-22 00:00:00
Creation Date	2017-08-21 13:17:39
Producing Software	MicrosoftÂ® Word 2010
Document Lastmod	2017-09-21 15:18:51
Document Title	Aprisa XE Product Description 8.8.84 NA
Document Creator	MicrosoftÂ® Word 2010
Document Author:	Doug.Connor

August 2017
Version 8.8.84a
Copyright
Copyright © 2017 4RF Limited. All rights reserved.
This document is protected by copyright belonging to 4RF Limited and may not be reproduced or
republished in whole or part in any form without the prior written permission of 4RF Limited.
Trademarks
Aprisa and the 4RF logo are trademarks of 4RF Limited.
Windows is a registered trademark of Microsoft Corporation in the United States and other countries. Java
and all Java-related trademarks are trademarks or registered trademarks of Sun Microsystems, Inc. in the
United States and other countries. All other marks are the property of their respective owners.
GoAhead WebServer. Copyright © 2000 GoAhead Software, Inc. All Rights Reserved.
Disclaimer
Although every precaution has been taken preparing this information, 4RF Limited assumes no liability for
errors and omissions, or any damages resulting from use of this information. This document or the
equipment may change, without notice, in the interests of improving the product.
RoHS and WEEE compliance
The Aprisa XE is fully compliant with the European Commission’s RoHS (Restriction of Certain Hazardous
Substances in Electrical and Electronic Equipment) and WEEE (Waste Electrical and Electronic Equipment)
environmental directives.
Restriction of hazardous substances (RoHS)
The RoHS Directive prohibits the sale in the European Union of electronic equipment containing these
hazardous substances: lead*, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBBs),
and polybrominated diphenyl ethers (PBDEs).
4RF Limited has worked with its component suppliers to ensure compliance with the RoHS Directive which
came into effect on the 1st July 2006.
*The European Commission Technical Adaptation Committee (TAC) has exempted lead in solder for highreliability applications for which viable lead-free alternatives have not yet been identified. The exemption
covers communications network infrastructure equipment, which includes 4RF Limited’ Aprisa XE
microwave radios.
End-of-life recycling programme (WEEE)
The WEEE Directive concerns the recovery, reuse, and recycling of electronic and electrical equipment.
Under the Directive, used equipment must be marked, collected separately, and disposed of properly.
4RF Limited has instigated a programme to manage the reuse, recycling, and recovery of waste in an
environmentally safe manner using processes that comply with the WEEE Directive (EU Waste Electrical
and Electronic Equipment 2002/96/EC).
4RF Limited invites questions from customers and partners on its environmental programmes and
compliance with the European Commission’s Directives (sales@4RF.com).
Aprisa XE Product Description 8.8.84 NA
Compliance general
The Aprisa XE digital radio predominantly operates within frequency bands that require a site license be
issued by the radio regulatory authority with jurisdiction over the territory in which the equipment is
being operated.
It is the responsibility of the user, before operating the equipment, to ensure that where required the
appropriate license has been granted and all conditions attendant to that license have been met.
Changes or modifications not approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Equipment authorizations sought by 4RF Limited are based on the Aprisa XE radio equipment being
installed at a fixed restricted access location and operated in a continuous point-to-point mode within the
environmental profile defined by EN 300 019, Class 3.2. Operation outside these criteria may invalidate
the authorizations and / or license conditions.
The term ‘Terminal’ with reference to the Aprisa XE User Manual, is a generic term for one end of a fixed
point-to-point Aprisa XE link and does not confer any rights to connect to any public network or to operate
the equipment within any territory.
Aprisa XE Product Description 8.8.84 NA
Compliance FCC
The Aprisa XE radio terminal is designed to comply with the Federal Communications Commission (FCC)
specifications as follows:
Radio
47CFR part 90 Private Land Mobile Radio Services
47CFR part 101 Fixed Microwave Services
47CFR part 27 Misc Wireless Communication Services
EMC
47CFR part 15 Radio Frequency Devices
Environmental
EN 300 019, Class 3.4
Safety
EN 60950-1:2006
Frequency band
limits
Channel
size
Power
input
Authorization
FCC ID
421 to 512 MHz
25 kHz
48 VDC
Part 90 Certification
UIPN0400025A0200A
Lower 700 MHz
698 to 746 MHz
500 kHz,
1.0 MHz
1.75 MHz
24 VDC,
48 VDC,
110 VAC
Part 27 Certification
UIPN0700AAAA0000A
Upper Block A 700 MHz
757 to 758 MHz
787 to 788 MHz
100 kHz,
200 kHz
500 kHz
24 VDC,
48 VDC,
110 VAC
Part 27 Certification
Pending
932.5 to 960 MHz
100 kHz,
200 kHz
24 VDC,
48 VDC,
110 VAC
Part 101 Verification
2314.5 to 2317.5 MHz
2346.5 to 2349.5 MHz
250 kHz,
500 kHz
24 VDC,
48 VDC,
110 VAC
Part 27 Certification
UIPN2500AAAA0200A
2180 to 2290 MHz
500 kHz
110 VAC
Part 101 Certification
UIPXE20001300
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Aprisa XE Product Description 8.8.84 NA
Compliance Industry Canada
The Aprisa XE radio terminal is designed to comply with Industry Canada (IC) specifications as follows:
Radio
RSS-GEN
RSS-119
EMC
This Class A digital apparatus complies with Canadian
standard ICES-003.
Cet appareil numérique de la classe A est conforme à la
norme NMB-003 du Canada.
Environmental
EN 300 019, Class 3.4
Safety
EN 60950-1:2006
Frequency Band
Channel size
Power
input
Authorization
IC ID
406.1 to 430 MHz and
450 to 470 MHz
25 kHz, 50 kHz
75 kHz, 150 kHz
24 VDC,
48 VDC,
110 VAC
RSS-119
6772A-N04AAAEC
932.5 to 944 MHz
100 kHz,
200 kHz
24 VDC,
48 VDC,
110 VAC
RSS-119
6772A-N09AAACC
1427 to 1452 MHz and
1492 to 1518 MHz
3.50 MHz
24 VDC,
48 VDC,
110 VAC
SRSP-301.4
2025 to 2110 MHz and
2200 to 2285 MHz
500 kHz, 1.0 MHz,
1.75 MHz, 3.50 MHz,
7 MHz
24 VDC,
48 VDC,
110 VAC
SRSP-302.0
Aprisa XE Product Description 8.8.84 NA
RF Exposure Warning
WARNING:
The installer and / or user of Aprisa XE radio terminals shall ensure that a separation
distance as given in the following table is maintained between the main axis of the
terminal’s antenna and the body of the user or nearby persons.
Minimum separation distances given are based on the maximum values of the
following methodologies:
1. Maximum Permissible Exposure non-occupational limit (B or general public) of
47 CFR 1.1310 and the methodology of FCC’s OST/OET Bulletin number 65.
2. Reference levels as given in Annex III, European Directive on the limitation of
exposure of the general public to electromagnetic fields (0 Hz to 300 GHz)
(1999/519/EC). These distances will ensure indirect compliance with the
requirements of EN 50385:2002.
Maximum power
(dBm)
Maximum
antenna gain
(dBi)
Maximum power
density
(mW/cm2)
Minimum
separation
distance
(m)
400
+ 35
15
0.20
2.0
512
+ 35
15
0.26
1.8
715
+ 34
10
0.23
1.0
806
+ 34
28
0.40
5.6
890
+ 34
28
0.45
5.3
960
+ 34
28
0.48
5.1
1550
+ 34
33
0.78
7.2
2300
+ 34
37
1.00
10.0
2700
+ 34
38
1.00
11.2
AF
Frequency
(MHz)
Aprisa XE Product Description 8.8.84 NA
Contents
1.
Introduction ................................................................................ 1
The 4RF Aprisa XE Terminal .................................................................... 1
Key Features ...................................................................................... 2
Robust Transmission Performance ...................................................... 3
Flexible Multiplexing ...................................................................... 3
Interface Types ............................................................................ 3
In-built Cross-Connect .................................................................... 4
RF Specifications ................................................................................. 5
Radios FCC.................................................................................. 5
Radios IC ................................................................................... 11
Duplexers .................................................................................. 17
Protection System Specifications ............................................................. 18
MHSB Protection .......................................................................... 18
HSD Protection............................................................................ 18
Power Specifications ............................................................................ 19
AC Power Supply.......................................................................... 19
DC Power Supply.......................................................................... 19
Power Consumption ...................................................................... 20
Environmental ............................................................................ 22
Mechanical ................................................................................ 22
Compliance ................................................................................ 23
2.
Applications .............................................................................. 25
Extending Telecommunications and Cellular Networks .................................... 26
Delivering POTS and Broadband to Remote Subscribers ................................... 27
Extending DSL Services in Remote Areas..................................................... 28
Supporting Mobile Radio Networks............................................................ 29
Digital Mobile Radio Networks .......................................................... 29
Analogue Trunked Radio................................................................. 29
Conventional Radio ...................................................................... 30
Supporting Utility Networks ................................................................... 31
Linking Offices in Private Networks .......................................................... 32
Aprisa XE Product Description 8.8.84 NA
3.
Architecture ............................................................................. 33
Modules ........................................................................................... 33
Front Panel Connections and Indicators ..................................................... 35
Transceiver ....................................................................................... 36
Receiver ................................................................................... 36
Transmitter................................................................................ 37
Duplexer .......................................................................................... 37
Modem ............................................................................................ 38
Motherboard ..................................................................................... 39
Power Supplies................................................................................... 40
AC Power Supply.......................................................................... 40
DC Power Supply.......................................................................... 40
Mounting Options ................................................................................ 40
Heat Dissipation ................................................................................. 40
4.
Interfaces ................................................................................. 41
Interface Specifications ........................................................................ 41
Ethernet Interface Connections ............................................................... 41
QETH Interface Connections ................................................................... 42
QJET Quad E1 / T1 Interface ........................................................... 44
Q4EM Quad 4 Wire E&M Interface...................................................... 45
DFXO Dual Foreign Exchange Office Interface ....................................... 49
DFXS Dual Foreign Exchange Subscriber Interface ................................... 51
QV24 Quad V.24 Serial Data Interface ................................................ 53
HSS Single High Speed Synchronous Interface ........................................ 55
5.
SuperVisor ................................................................................ 59
Configuring the Aprisa XE Terminal........................................................... 59
Monitoring the Aprisa XE Terminal............................................................ 59
Operator Rights and Access Levels............................................................ 60
Viewing the Status of the Link ................................................................ 60
Configuring the Basic Terminal Settings ..................................................... 61
Configuring the Interface Ports and Cross Connect ........................................ 62
Interface Ports ............................................................................ 62
Loopback Functionality .................................................................. 63
Configuring the Cross Connects ........................................................ 63
Monitoring Performance and Troubleshooting Problems .................................. 64
6.
Network Management .................................................................. 67
7.
Protected Options ...................................................................... 69
Monitored Hot Stand By (MHSB) ............................................................... 69
Hitless Space Diversity (HSD) .................................................................. 71
Aprisa XE Product Description 8.8.84 NA
Introduction | 1
1.
Introduction
The 4RF Aprisa XE Terminal
The 4RF Aprisa XE point-to-point digital access radio provides robust wireless transmission of Internet,
voice and data traffic over distances of up to 250 kilometres.
The Aprisa XE Terminal is the flexible, functional answer to the low-medium capacity challenges in
today’s wireless networks.
Easy to use and customer-configurable, the Aprisa XE terminal provides solutions from simple trunking
applications to complete complex network designs.
Our design priority is to reduce network operators’ costs. To this end, we engineer into all Aprisa XE
terminals high-performance characteristics and operating features that deliver:

Superior spectral efficiency

Customer-configurable interfaces

Straightforward integration into existing networks
The SuperVisorTM software is an embedded element manager for the Aprisa XE terminal, meaning that is
easily accessed using any standards-compliant web browser.
The SuperVisor software is graphical and intuitive, and requires no ongoing training. SNMP connectivity is
standard with the SuperVisor software, allowing easy integration of the Aprisa XE terminal into higherlevel management systems.
The Aprisa XE terminal is small and powerful, with eight interface slots and up to 65 Mbit/s of capacity,
ideal for use in busy network sites where vertical rack space is limited.
Aprisa XE Product Description 8.8.84 NA
2 | Introduction
Key Features

Spectrally efficient 16, 32 and 64 QAM modulation types

QPSK modulation for higher system gain

Capacities from 72 kbit/s (1 x timeslot) to 65 Mbit/s (32 x E1)

Channel sizes from 25 kHz to 14 MHz

A full E1 (2 Mbit/s) bearer in just 500 kHz of spectrum (64 QAM)

In-built 4-port Ethernet switch

In-built digital cross-connect with 8 kbit/s granularity

Frequency bands from 300 MHz to 2.7 GHz

Customer-configurable interface options for data and voice traffic

19-inch rack mounting

Complies with international standards, including ETSI, FCC and Industry Canada

Modular design to reduce the mean time to repair (MTTR)

Embedded Java™-enabled element management software (the SuperVisor software)

Integrated SNMP for network management

Protection options of Monitored Hot Standby (MHSB) and Hitless Space Diversity (HSD)
Aprisa XE Product Description 8.8.84 NA
Introduction | 3
Robust Transmission Performance
The Aprisa XE terminal provides robust, reliable, ‘carrier-class’ transmission performance for long and
challenging paths:

Reed-Solomon Forward Error Correction delivers an unfaded BER of 10-12 , a performance more
commonly associated with fibre optics.

Multi-tap equalizers optimize multi-path performance.

Advanced digital filters provide optimum protection against adjacent channel interference, and
allow maximum frequency reuse.

Spectrum-efficient 16, 32 and 64 QAM modulation maximizes data throughput in narrow radio
channels, thereby reducing frequency licensing costs.

QPSK modulation provides increased gain for very long obstructed paths.
Flexible Multiplexing
The Aprisa XE terminal provides primary multiplexing options without the need for external equipment.
It features eight interface card slots and an in-built cross-connect.
Interface Types
The Aprisa XE terminal’s range of analogue and digital customer interface types makes it suitable for
many applications.
It comes with an in-built 4-port Ethernet switch, which supports VLAN tagging and QoS for customer and
management traffic.
Other interface card options include:

QETH Quad port Ethernet interface card supporting 10Base-T or 100Base-TX for transport of user
Ethernet traffic

DFXO Dual 2 wire Foreign Exchange Office (PCM / ADPCM)

DFXS Dual 2 wire Foreign Exchange Subscriber (PCM / ADPCM)

Q4EM Quad 4 wire E&M (PCM / ADPCM)

QJET Quad E1 / T1 - G.703 / G.704

QV24 Quad V.24 asynchronous and synchronous Serial Data Interface.

HSS Single Synchronous Serial interface including V.35, X.21, RS-449 and RS-530
Aprisa XE Product Description 8.8.84 NA
4 | Introduction
In-built Cross-Connect
The Aprisa XE terminal’s in-built micro cross-connect distributes capacity to each of the interfaces. It can
distribute traffic to any of the possible 32 interface ports as well as the integrated Ethernet interface.
This allows operators to reconfigure traffic as network demand changes, and to groom user traffic onto E1
bearers between equipment.
For example, a typical E1 bearer can be distributed as follows:

Four 64 kbit/s PCM 2 wire voice circuits

CAS signalling using 64 kbit/s

Four 9600 bit/s V.24 circuits, each using 24 kbit/s

One X.21 circuit using 128 kbit/s

One Ethernet 100/10Base-T circuit using 384 kbit/s

16 timeslots for fractional E1 traffic using 1024 kbit/s

One management channel using 64 kbit/s
Aprisa XE Product Description 8.8.84 NA
Introduction | 5
RF Specifications
Radios FCC
Frequency Bands FCC
Frequency
Band
Frequency Bands
Frequency
Tuning Range
Synthesizer
Step Size
400 MHz
421 - 512 MHz
6.25 kHz
Lower 700 MHz
698 - 746 MHz
12.5 kHz
Upper Block A 700 MHz
757 – 758 and
787 – 788 MHz
12.5 kHz
900 MHz
928 - 960 MHz
12.5 kHz
1800 MHz
1755 - 1850 MHz
62.5 kHz
2000 MHz
1900 - 2300 MHz
62.5 kHz
2500 MHz 250 / 500 kHz channels
2314 - 2350 MHz
62.5 kHz
2500 MHz All other channels
2305 - 2360 MHz
62.5 kHz
Modulation
16 / 32 / 64 QAM and QPSK (software configurable)
Frequency stability (short term)
< ±1 ppm
Frequency stability (long term)
< ±2 ppm
Antenna connector
N-type female 50 Ω
Notes
Frequency Ranges
Country specific frequency ranges within the above tuning ranges can be accommodated
Frequency stability
Short term frequency stability is defined as changes in frequency due to environmental effects and power supply
variations
Long term frequency stability is defined as changes in frequency due to aging of crystal oscillators approx over 5 years
Aprisa XE Product Description 8.8.84 NA
6 | Introduction
Product Range FCC
The Aprisa XE terminal provides the following FCC frequency bands / channel sizes:
Channel Size
kHz
25
Frequency Band MHz
400
50
100
200
Part 27
Part 27
Part 101
Part 101
250
500
1.00
1.75
Part 27
Part 27
Part 27
Part 90
700
900
MHz
Part 101
Part 101
2500
Part 27
Released
Product Release Pending
Aprisa XE Product Description 8.8.84 NA
Part 27
Introduction | 7
Link Capacity FCC part 27
Channel size
100 kHz
QPSK
Gross
T1
Wayside
200 kHz
Gross
T1
Wayside
250 kHz
Gross
T1
Wayside
500 kHz
Gross
T1
Wayside
1.0 MHz
Gross
32 QAM
64 QAM
168 kbit/s
344 kbit/s
432 kbit/s
520 kbit/s
2 timeslots
5 timeslots
6 timeslots
8 timeslots
40 kbit/s
24 kbit/s
48 kbit/s
8 kbit/s
336 kbit/s
5 timeslots
680 kbit/s
10 timeslots
840 kbit/s
13 timeslots
1024 kbit/s
16 timeslots
16 kbit/s
40 kbit/s
8 kbit/s
0 kbit/s
408 kbit/s
824 kbit/s
1032 kbit/s
1240 kbit/s
6 timeslots
12 timeslots
16 timeslots
19 timeslots
24 kbit/s
56 kbit/s
8 kbit/s
24 kbit/s
792 kbit/s
1592 kbit/s
1992 kbit/s
2392 kbit/s
12 timeslots
1 T1
1 T1
1 T1
24 kbit/s
8 kbit/s
408 kbit/s
808 kbit/s
1656 kbit/s
3320 kbit/s
4152 kbit/s
4984 kbit/s
T1
1 T1
2 T1s
2 T1s
3 T1s
72 kbit/s
152 kbit/s
984 kbit/s
232 kbit/s
Gross
T1
2872 kbit/s
1 T1
5752 kbit/s
3 T1s
7192 kbit/s
4 T1s
8632 kbit/s
5 T1s
Wayside
1288 kbit/s
1000 kbit/s
856 kbit/s
712 kbit/s
Wayside
1.75 MHz
16 QAM
Link Capacity FCC part 90
Channel size
25 kHz
QPSK
Gross
T1
Wayside
16 QAM
32 QAM
64 QAM
56 kbit/s
0 timeslots
72 kbit/s
1 timeslot
88 kbit/s
1 timeslot
56 kbit/s
8 kbit/s
24 kbit/s
Link Capacity FCC part 101
Channel size
25 kHz
QPSK
Gross
T1
Wayside
50 kHz
Gross
T1
Wayside
100 kHz
Gross
T1
Wayside
200 kHz
Gross
T1
Wayside
Notes
16 QAM
32 QAM
64 QAM
72 kbit/s
96 kbit/s
112 kbit/s
1 timeslot
1 timeslot
1 timeslot
8 kbit/s
32 kbit/s
48 kbit/s
80 kbit/s
168 kbit/s
208 kbit/s
256 kbit/s
1 timeslot
2 timeslots
3 timeslots
4 timeslots
16 kbit/s
40 kbit/s
16 kbit/s
0 kbit/s
136 kbit/s
2 timeslots
280 kbit/s
4 timeslots
352 kbit/s
5 timeslots
424 kbit/s
6 timeslots
8 kbit/s
24 kbit/s
32 kbit/s
40 kbit/s
312 kbit/s
4 timeslots
632 kbit/s
9 timeslots
792 kbit/s
12 timeslots
952 kbit/s
14 timeslots
56 kbit/s
56 kbit/s
24 kbit/s
56 kbit/s
The capacities specified are for unframed T1 and so require 1584 kbit/s to transport via the radio.
The management ethernet capacity must be subtracted from the gross capacity (default 64 kbit/s).
See Product Range table for Channel Size / Frequency Band cross reference
NA (Not Available)
Aprisa XE Product Description 8.8.84 NA
8 | Introduction
Receiver Sensitivity FCC
Channel size
Notes
QPSK
16 QAM
32 QAM
64 QAM
25 kHz
NA
-105 dBm
-102 dBm
-99 dBm
50 kHz
-109 dBm
-103 dBm
-100 dBm
-97 dBm
100 kHz
-106 dBm
-100 dBm
-97 dBm
-94 dBm
200 kHz
-102 dBm
-96 dBm
-93 dBm
-90 dBm
250 kHz
-101 dBm
-95 dBm
-92 dBm
-89 dBm
500 kHz
-99 dBm
-93 dBm
-90 dBm
-87 dBm
1.0 MHz
-96 dBm
-90 dBm
-87 dBm
-84 dBm
1.75 MHz
-94 dBm
-88 dBm
-85 dBm
-82 dBm
Typical performance specified at the antenna port for 10-6 BER.
The receiver is typically 1 dB more sensitive for a BER of 10-3.
NA (Not Available)
Transmitter Power FCC
1+0 Radio
Frequency Band
QPSK
16 QAM
32 QAM
64 QAM
400 MHz
NA
17 to 31 dBm
15 to 29 dBm
15 to 29 dBm
Lower 700 MHz
21 to 35 dBm
17 to 31 dBm
15 to 29 dBm
15 to 29 dBm
Upper 700 MHz
21 to 31 dBm
17 to 31 dBm
15 to 29 dBm
15 to 29 dBm
700 MHz
21 to 35 dBm
17 to 31 dBm
15 to 29 dBm
15 to 29 dBm
900 MHz
15 to 29 dBm
15 to 29 dBm
15 to 29 dBm
15 to 29 dBm
2500 MHz
15 to 29 dBm
15 to 29 dBm
15 to 29 dBm
15 to 29 dBm
1+1 Radio
Frequency Band
QPSK
16 QAM
32 QAM
64 QAM
400 MHz
NA
15 to 29 dBm
15 to 29 dBm
15 to 28 dBm
Lower 700 MHz
21 to 35 dBm
15 to 29 dBm
15 to 29 dBm
15 to 28 dBm
Upper 700 MHz
21 to 31 dBm
15 to 29 dBm
15 to 29 dBm
15 to 28 dBm
900 MHz
15 to 28 dBm
15 to 28 dBm
15 to 28 dBm
15 to 28 dBm
2500 MHz
15 to 28 dBm
15 to 28 dBm
15 to 28 dBm
15 to 28 dBm
Aprisa XE Product Description 8.8.84 NA
Introduction | 9
System Gain FCC
Frequency Band
Notes
Channel size
QPSK
16 QAM
32 QAM
400 MHz
25 kHz
NA
136 dB
132 dB
128 dB
Upper 700 MHz
100 kHz
137 dB
131 dB
127 dB
123 dB
Upper 700 MHz
200 kHz
133 dB
127 dB
123 dB
119 dB
Lower 700 MHz
500 kHz
134 dB
124 dB
120 dB
116 dB
Upper 700 MHz
500 kHz
130 dB
124 dB
120 dB
116 dB
Lower 700 MHz
1.0 MHz
131 dB
121 dB
117 dB
113 dB
Lower 700 MHz
1.75 MHz
129 dB
119 dB
115 dB
111 dB
900 MHz
25 kHz
NA
134 dB
131 dB
128 dB
900 MHz
50 kHz
138 dB
132 dB
129 dB
126 dB
900 MHz
100 kHz
135 dB
129 dB
126 dB
123 dB
900 MHz
200 kHz
131 dB
125 dB
122 dB
119 dB
2500 MHz
250 kHz
130 dB
124 dB
121 dB
118 dB
2500 MHz
500 kHz
128 dB
122 dB
119 dB
116 dB
Typical performance specified at the antenna port for 10-6 BER.
The system gain is typically 1 dB greater for a BER of 10 -3.
System Gain = maximum transmit power - receiver sensitivity
NA (Not Available)
Receiver Performance FCC
Maximum input level
-20 dBm
Dynamic range
58 to 87 dB (at 10-6 BER)
depending on modulation type and channel size
C/I ratio
(carrier to interference ratio)
C/I ratio = CdB - IdB
Co-channel
better than 16 dB at QPSK
better than 20 dB at 16 QAM
better than 23 dB at 32 QAM
better than 27 dB at 64 QAM
Notes
64 QAM
1st adjacent channel
better than -5 dB
2nd adjacent channel
better than -30 dB
Typical performance specified at the antenna port for 10-6 BER.
The dynamic range is typically 2 dB greater for a BER of 10-3
Aprisa XE Product Description 8.8.84 NA
10 | Introduction
Link Delays FCC
Note: The default Modem Interleaver Mode setting is on for channel sizes of 250 kHz and greater and off
for channel sizes of 200 kHz and less.
Typical 1+0, MHSB end-to-end link delay - interleaver off
Channel size
QPSK
16 QAM
32 QAM
64 QAM
FCC Part
25 kHz
NA
64.4 ms
52.3 ms
44.2 ms
Part 90
25 kHz
NA
51.8 ms
40.6 ms
35.7 ms
Part 101
50 kHz
46.2 ms
24.3 ms
20.2 ms
16.9 ms
Part 101
100 kHz
28.8 ms
15.3 ms
12.7 ms
10.9 ms
Part 101
200 kHz
15.9 ms
8.8 ms
7.3 ms
6.4 ms
Part 101
250 kHz
10.8 ms
6.5 ms
5.5 ms
4.9 ms
Part 27
500 kHz
6.3 ms
3.9 ms
3.4 ms
7.1 ms
Part 27
1.0 MHz
3.8 ms
2.6 ms
2.3 ms
2.2 ms
Part 27
1.75 MHz
3.1 ms
2.3 ms
2.1 ms
2.0 ms
Part 27
Typical 1+0, MHSB end-to-end link delay - interleaver on
Channel size
Notes
QPSK
16 QAM
32 QAM
64 QAM
FCC Part
25 kHz
NA
191.6 ms
154.1 ms
129.1 ms
Part 90
25 kHz
NA
153.6 ms
118.9 ms
103.5 ms
Part 101
50 kHz
138.8 ms
70.5 ms
57.9 ms
47.8 ms
Part 101
100 kHz
85.3 ms
43.6 ms
35.3 ms
29.7 ms
Part 101
200 kHz
45.8 ms
23.7 ms
19.3 ms
16.4 ms
Part 101
250 kHz
30.4 ms
17.7 ms
14.5 ms
12.4 ms
Part 27
500 kHz
16.5 ms
9.5 ms
8.2 ms
3.2 ms
Part 27
1.0 MHz
8.8 ms
5.1 ms
4.3 ms
3.9 ms
Part 27
1.75 MHz
5.6 ms
3.5 ms
3.1 ms
2.8 ms
Part 27
The end to end link delays are measured from T1 interface to T1 interface
The delay figures are typical and can vary when the system re-synchronizes
NA (Not Available)
Aprisa XE Product Description 8.8.84 NA
Introduction | 11
Radios IC
Frequency Bands IC
Frequency
Band
Frequency Bands
Frequency
Tuning Range
Synthesizer
Step Size
400 MHz
400 - 470 MHz
6.25 kHz
900 MHz
928 - 960 MHz
12.5 kHz
2000 MHz
1900 - 2300 MHz
62.5 kHz
Modulation
16 / 32 / 64 QAM and QPSK (software configurable)
Frequency stability (short term)
< ±1 ppm
Frequency stability (long term)
< ±2 ppm
Antenna connector
N-type female 50 Ω
Notes
Frequency Ranges
Country specific frequency ranges within the above tuning ranges can be accommodated
Frequency stability
Short term frequency stability is defined as changes in frequency due to environmental effects and power supply
variations
Long term frequency stability is defined as changes in frequency due to aging of crystal oscillators approx over 5 years
Aprisa XE Product Description 8.8.84 NA
12 | Introduction
Product Range IC
The Aprisa XE terminal provides the following IC frequency bands / channel sizes:
Channel Size
kHz
Frequency Band MHz
400
900
2000
25
50
75
RSS
119
RSS
119
RSS
119
100
MHz
150
200
500
1.00
1.75
3.50
7.00
14.00
SRSP302
SRSP302
SRSP302
SRSP302
SRSP302
SRSP302
RSS
119
RSS
119
RSS
119
Aprisa XE Product Description 8.8.84 NA
Introduction | 13
Link Capacity IC
Channel size
25 kHz
QPSK
Gross
16 QAM
NA
T1
Wayside
50 kHz
Gross
T1
Wayside
75 kHz
Gross
T1
Wayside
100 kHz
Gross
T1
Wayside
150 kHz
Gross
T1
Wayside
200 kHz
Gross
T1
Wayside
500 kHz
Gross
T1
Wayside
1.0 MHz
Gross
T1
Wayside
1.75 MHz
Gross
T1
3.5 MHz
72 kbit/s
88 kbit/s
1 timeslot
1 timeslot
56 kbit/s
8 kbit/s
24 kbit/s
72 kbit/s
1 timeslot
152 kbit/s
2 timeslots
192 kbit/s
3 timeslots
232 kbit/s
4 timeslots
8 kbit/s
24 kbit/s
0 kbit/s
40 kbit/s
128 kbit/s
264 kbit/s
312 kbit/s
400 kbit/s
2 timeslots
4 timeslots
4 timeslots
6 timeslots
0 kbit/s
8 kbit/s
56 kbit/s
16 kbit/s
136 kbit/s
280 kbit/s
352 kbit/s
424 kbit/s
2 timeslots
4 timeslots
5 timeslots
6 timeslots
8 kbit/s
24 kbit/s
32 kbit/s
40 kbit/s
264 kbit/s
536 kbit/s
672 kbit/s
808 kbit/s
4 timeslots
8 timeslots
10 timeslots
12 timeslots
8 kbit/s
24 kbit/s
32 kbit/s
40 kbit/s
312 kbit/s
4 timeslots
632 kbit/s
9 timeslots
792 kbit/s
12 timeslots
952 kbit/s
14 timeslots
56 kbit/s
56 kbit/s
24 kbit/s
56 kbit/s
792 kbit/s
1592 kbit/s
1992 kbit/s
2392 kbit/s
12 timeslots
1 T1
1 T1
1 T1
24 kbit/s
8 kbit/s
408 kbit/s
808 kbit/s
1624 kbit/s
1 T1
3256 kbit/s
2 T1s
4072 kbit/s
2 T1s
4888 kbit/s
3 T1s
40 kbit/s
88 kbit/s
904 kbit/s
136 kbit/s
2872 kbit/s
5752 kbit/s
7192 kbit/s
8632 kbit/s
1 T1
3 T1s
4 T1s
5 T1s
1288 kbit/s
1000 kbit/s
856 kbit/s
712 kbit/s
5720 kbit/s
3 T1s
11448 kbit/s
7 T1s
14312 kbit/s
9 T1s
17176 kbit/s
10 T1s
968 kbit/s
360 kbit/s
56 kbit/s
1336 kbit/s
11832 kbit/s
23672 kbit/s
29592 kbit/s
35512 kbit/s
Gross
Wayside
Gross
T1
Wayside
Notes
56 kbit/s
0 timeslots
Gross
T1
T1
14 MHz
64 QAM
Wayside
Wayside
7.0 MHz
32 QAM
7 T1s
14 T1s
18 T1s
22 T1s
744 kbit/s
1496 kbit/s
1080 kbit/s
664 kbit/s
NA
47992 kbit/s
30 T1s
59992 kbit/s
32 T1s
65464 kbit/s
32 T1s
472 kbit/s
9304 kbit/s
14776 kbit/s
The capacities specified are for unframed T1 and so require 1584 kbit/s to transport via the radio.
The management ethernet capacity must be subtracted from the gross capacity (default 64 kbit/s).
See Product Range table for Channel Size / Frequency Band cross reference
NA (Not Available)
Aprisa XE Product Description 8.8.84 NA
14 | Introduction
Receiver Sensitivity IC
Channel size
Notes
QPSK
16 QAM
32 QAM
64 QAM
25 kHz
NA
-105 dBm
-102 dBm
-99 dBm
50 kHz
-109 dBm
-103 dBm
-100 dBm
-97 dBm
75 kHz
-107 dBm
-101 dBm
-98 dBm
-95 dBm
100 kHz
-106 dBm
-100 dBm
-97 dBm
-94 dBm
150 kHz
-104 dBm
-98 dBm
-95 dBm
-92 dBm
200 kHz
-102 dBm
-96 dBm
-93 dBm
-90 dBm
500 kHz
-99 dBm
-93 dBm
-90 dBm
-87 dBm
1.0 MHz
-96 dBm
-90 dBm
-87 dBm
-84 dBm
1.75 MHz
-94 dBm
-88 dBm
-85 dBm
-82 dBm
3.5 MHz
-90 dBm
-84 dBm
-81 dBm
-78 dBm
7.0 MHz
-87 dBm
-81 dBm
-78 dBm
-75 dBm
14 MHz
NA
-78 dBm
-75 dBm
-72 dBm
Typical performance specified at the antenna port for 10-6 BER.
The receiver is typically 1 dB more sensitive for a BER of 10 -3.
NA (Not Available)
Transmitter Power IC
Frequency Band
QPSK
16 QAM
32 QAM
64 QAM
400 MHz
21 to 35 dBm
17 to 31 dBm
16 to 30 dBm
15 to 29 dBm
900 MHz
15 to 29 dBm
15 to 29 dBm
15 to 29 dBm
15 to 29 dBm
2000 MHz
20 to 34 dBm
17 to 31 dBm
16 to 30 dBm
15 to 29 dBm
Aprisa XE Product Description 8.8.84 NA
Introduction | 15
System Gain IC
Channel size
Notes
QPSK
16 QAM
32 QAM
64 QAM
25 kHz
NA
136 dB
132 dB
128 dB
50 kHz
144 dB
134 dB
130 dB
126 dB
75 kHz
142 dB
132 dB
128 dB
124 dB
100 kHz
135 dB
129 dB
126 dB
123 dB
150 kHz
139 dB
129 dB
125 dB
121 dB
200 kHz
131 dB
125 dB
122 dB
119 dB
500 kHz
133 dB
124 dB
120 dB
116 dB
1.0 MHz
130 dB
121 dB
117 dB
113 dB
1.75 MHz
128 dB
119 dB
115 dB
111 dB
3.5 MHz
124 dB
115 dB
111 dB
107 dB
7.0 MHz
121 dB
112 dB
108 dB
104 dB
14 MHz
NA
109 dB
105 dB
101 dB
Typical performance specified at the antenna port for 10-6 BER.
The system gain is typically 1 dB greater for a BER of 10 -3.
System Gain = maximum transmit power - receiver sensitivity
NA (Not Available)
Receiver Performance
Maximum input level
-20 dBm
Dynamic range
58 to 87 dB (at 10-6 BER)
depending on modulation type and channel size
C/I ratio
(carrier to interference ratio)
C/I ratio = CdB - IdB
Co-channel
better than 16 dB at QPSK
better than 20 dB at 16 QAM
better than 23 dB at 32 QAM
better than 27 dB at 64 QAM
Notes
1st adjacent channel
better than -5 dB
2nd adjacent channel
better than -30 dB
Typical performance specified at the antenna port for 10-6 BER.
The dynamic range is typically 2 dB greater for a BER of 10 -3
Aprisa XE Product Description 8.8.84 NA
16 | Introduction
Link Delays IC
Note: The default Modem Interleaver Mode setting is on for channel sizes of 250 kHz and greater and off
for channel sizes of 200 kHz and less.
Typical 1+0, MHSB end-to-end link delay - interleaver off
Channel size
QPSK
16 QAM
32 QAM
64 QAM
25 kHz
NA
49.6 ms
39.4 ms
34.9 ms
50 kHz
46.2 ms
24.3 ms
20.2 ms
16.9 ms
75 kHz
35.5 ms
19.0 ms
16.8 ms
13.6 ms
100 kHz
28.8 ms
15.3 ms
12.7 ms
10.9 ms
150 kHz
17.5 ms
10.1 ms
8.5 ms
7.1 ms
200 kHz
15.9 ms
8.8 ms
7.3 ms
6.4 ms
500 kHz
6.3 ms
3.5 ms
3.4 ms
3.2 ms
1.0 MHz
3.8 ms
2.6 ms
2.3 ms
2.2 ms
1.75 MHz
3.1 ms
2.3 ms
2.1 ms
2.0 ms
3.5 MHz
2.6 ms
2.0 ms
1.8 ms
1.8 ms
7.0 MHz
2.0 ms
1.7 ms
1.6 ms
1.6 ms
14 MHz
NA
1.6 ms
1.5 ms
1.5 ms
Typical 1+0, MHSB end-to-end link delay - interleaver on
Channel size
Notes
QPSK
16 QAM
32 QAM
64 QAM
25 kHz
NA
164.7 ms
127.7 ms
111.8 ms
50 kHz
138.8 ms
70.5 ms
59.9 ms
47.8 ms
75 kHz
103.7 ms
53.2 ms
45.8 ms
36.4 ms
100 kHz
85.3 ms
43.6 ms
35.3 ms
29.7 ms
150 kHz
51.4 ms
26.8 ms
21.9 ms
18.6 ms
200 kHz
45.8 ms
23.7 ms
19.3 ms
16.4 ms
500 kHz
16.5 ms
9.3 ms
8.0 ms
6.9 ms
1.0 MHz
8.8 ms
5.1 ms
4.3 ms
3.9 ms
1.75 MHz
6.8 ms
4.1 ms
3.6 ms
3.2 ms
3.5 MHz
5.1 ms
3.2 ms
2.8 ms
2.6 ms
7.0 MHz
3.5 ms
2.4 ms
2.2 ms
2.1 ms
14 MHz
NA
2.1 ms
1.9 ms
1.8 ms
The end to end link delays are measured from T1 interface to T1 interface
The delay figures are typical and can vary when the system re-synchronizes
NA (Not Available)
Aprisa XE Product Description 8.8.84 NA
Introduction | 17
Duplexers
Frequency
Band
Option
A0
300 MHz
Standard
9.45 MHz min split
2 MHz
330 - 400 MHz
330 - 400 MHz
External
A1
300 MHz
Option 1
5 MHz min split
0.5 MHz
330 - 400 MHz
330 - 400 MHz
External
A2
300 MHz
Option 2
20 MHz min split
3.5 MHz
330 - 400 MHz
330 - 400 MHz
External
B0
400 MHz
Standard
9.45 MHz min split
2 MHz
400 - 470 MHz
400 - 470 MHz
External
B1
400 MHz
Option 1
5 MHz min split
0.5 MHz
400 - 470 MHz
400 - 470 MHz
External
B2
400 MHz
Option 2
20 MHz min split
3.5 MHz
400 - 470 MHz
400 - 470 MHz
External
C0
400 MHz
Standard
3 MHz min split
0.5 MHz
470 - 492 MHz
473 - 495 MHz
External
D0
600 MHz
Standard
45 MHz min split
7 MHz
620 - 715 MHz
620 - 715 MHz
Internal
E0
700 MHz
Standard
30 MHz min split
7 MHz
698 - 806 MHz
698 - 806 MHz
Internal
F0
800 MHz
Standard
40 MHz min split
7 MHz
805 - 890 MHz
805 - 890 MHz
Internal
G0
900 MHz
Standard
40 MHz min split
7 MHz
850 - 960 MHz
850 - 960 MHz
Internal
G2
900 MHz
Option 2
9 MHz split
1 MHz
928 - 960 MHz
928 - 960 MHz
Internal
G3
900 MHz
Option 3
5.5 MHz min split
0.5 MHz
900 - 960 MHz
900 - 960 MHz
External
G4
900 MHz
Option 4
3.6 MHz split
0.5 MHz
900 - 960 MHz
900 - 960 MHz
External
H0
1400 MHz
Standard
48 MHz min split
7 MHz
1350 - 1550 MHz
1350 - 1550 MHz
Internal
H1
1400 MHz
Option 1
23 MHz min split
7 MHz
1350 - 1550 MHz
1350 - 1550 MHz
Internal
K0
1800 MHz
Standard
47.5 MHz min split
14 MHz
1700 - 2100 MHz
1700 - 2100 MHz
Internal
I0
2000 MHz
Standard
91 MHz min split
14 MHz
1900 - 2300 MHz
1900 - 2300 MHz
Internal
J0
2500 MHz
Standard
74 MHz min split
14 MHz
2300 - 2700 MHz
2300 - 2700 MHz
Internal
J1
2500 MHz
Option 1
32 MHz min split
4 MHz
2314 - 2318 MHz
2346 - 2350 MHz
Internal
Code
Notes
TX / RX Split
Passband
Lo Band
All duplexers are bandpass
Contact 4RF for other duplexer options
Aprisa XE Product Description 8.8.84 NA
Hi Band
Mounting
18 | Introduction
Protection System Specifications
MHSB Protection
MHSB switches
RF switch
Switching time
< 25 ms from detection of alarm condition
Switch hysteresis
30 seconds (to prevent switching on short alarm transients)
RF path restore time
< 10 seconds
TX relay / cable loss
 1.0 dB
RX splitter / cable loss  4.0 dB
Tributary switch
Total system loss
System gain reduced by a maximum of 5 dB
Ports
HSD Protection
TX path
TX relay / cable loss
 1.0 dB
Switching times
Transmit path
< 25 ms from detection of alarm condition
Receive path
Hitless
Aprisa XE Product Description 8.8.84 NA
Introduction | 19
Power Specifications
AC Power Supply
Nominal
voltage
Input voltage
range
Maximum Power
input
Max VA
Frequency
115 VAC
103 - 127 Vrms
180 W
400 VA
47 - 63 Hz
230 VAC
207 - 254 Vrms
180 W
400 VA
47 - 63 Hz
Nominal voltage
Input voltage
range
Maximum Power
input
Maximum input
current
Recommended
DC breaker
rating
+12 VDC LP
10.5 to 18 VDC
53 W
5A
8A
±12 VDC
10.5 to 18 VDC
180 W
18 A
25 A
±24 VDC
20.5 to 30 VDC
180 W
8A
10 A
±48 VDC
40 to 60 VDC
180 W
4A
5A
DC Power Supply
Aprisa XE Product Description 8.8.84 NA
20 | Introduction
Power Consumption
Terminal Type
Power Consumption (min – max)
Standard Aprisa XE 1+0 terminal
34 to 170 W Input power
(dependent on the transmitter output power, the interface cards
fitted and the power supply option)
Standard Aprisa XE 1+1 terminal
74 to 375 W Input power
(dependent on the transmitter output power, the interface cards
fitted, the number of trib switches and the power supply option)
Standard Aprisa XE HSD terminal
68 to 286 W Input power
(dependent on the transmitter output power, the interface cards
fitted and the power supply option)
Power Consumption Model
An Aprisa XE Power Consumption model program called XEpower is on the Aprisa XE CD. This program
shows the typical power consumption for any product configuration. Java 1.6 is required to be installed on
your PC to run this program.
Standard Aprisa XE 1+0 terminal – 48 VDC
These power consumption figures represent the typical power drawn by a single standard 1400 MHz 1+0
terminal measured at the input to a ± 48 VDC power supply.
Power Consumption (min – max)
40 to 150 W Input power (dependent on interface cards fitted
and transmitter output power level)
Terminal only:
TX power of + 20 dBm
44 W
TX power of + 25 dBm
54 W
TX power of + 30 dBm
61 W
TX power of + 35 dBm
64 W
Interface cards:
QJET four port E1 card
2.3 W (four ports operating)
Q4EM four port 4W E&M card
0.6 W (all states)
QV24 four port V.24 card
0.2 W (all states)
DFXO two port 2W FXO card
0.7 W (all states)
DFXS two port 2W FXS card
One DFXS card installed with both ports idle (on hook): 2.5 W
Plus:
1.9 W / line off-hook (200 ohm copper loop plus 450 ohm
telephone)
1.0 W / line ringing (60 Vrms 25Hz source via 100 ohm copper
loop into a 1 REN load)
1.5 W / line ringing (45 Vrms 25Hz source via 100 ohm copper
loop into a 3 REN load)
HSS single port high speed data
1.0 W (all states)
MHSB:
Tributary and RF switch
13 W not switched
25 W switched
Aprisa XE Product Description 8.8.84 NA
Introduction | 21
Low Power Aprisa XE 1+0 terminal – 12 VDC
These power consumption figures represent the typical power drawn by a single low power 1400 MHz 1+0
terminal measured at the input to a low power +12 VDC power supply.
Power Consumption (min – max)
34 to 53 W Input power (dependent on interface cards fitted and
transmitter output power level)
Terminal only:
TX power of + 20 dBm
34 W
TX power of + 24 dBm
40 W
Interface cards:
QJET four port E1 card
1.9 W (four ports operating)
Q4EM four port 4W E&M card
0.53 W (all states)
QV24 four port V.24 card
0.15 W (all states)
DFXO two port 2W FXO card
0.56 W (all states)
DFXS two port 2W FXS card
One DFXS card installed with both ports idle (on hook): 2.1 W
Plus:
1.6 W / line off-hook (200 ohm copper loop plus 450 ohm
telephone)
0.8 W / line ringing (60 Vrms 25Hz source via 100 ohm copper
loop into a 1 REN load)
1.2 W / line ringing (45 Vrms 25Hz source via 100 ohm copper
loop into a 3 REN load)
HSS single port high speed data
0.85 W (all states)
Aprisa XE Product Description 8.8.84 NA
22 | Introduction
General Specifications
Environmental
Operating temperature range
-10 to +50˚ C
Storage temperature range
-20 to +70˚ C
Operating humidity
Maximum 95% non-condensing
Acoustic noise emission
59 dBA (A-weighted Sound Power Level)
Mechanical
Height
Standard terminal
2 U high (internal duplexer)
3 – 4 U high (depending on external duplexer type)
MHSB terminal
6 U high (internal duplexer)
7 – 8 U high (depending on external duplexer type)
HSD terminal
4 U high (internal duplexer)
6 – 8 U high (depending on external duplexer type)
Width
19-inch rack mount
434 mm (without mounting brackets attached)
483 mm (with mounting brackets attached)
Depth
372 mm
Colour
Pure black
Weight
Standard terminal
8 kg (internal duplexer)
9 - 12 kg (depending on external duplexer type)
MHSB terminal
25 kg (internal duplexer)
26 – 29 kg (depending on external duplexer type)
HSD terminal
17 kg (internal duplexer)
19 – 24 kg (depending on external duplexer type)
Aprisa XE Product Description 8.8.84 NA
Introduction | 23
Compliance
FCC
Radio
47CFR part 90
47CFR part 101
47CFR part 27
EMI / EMC
EN 301 489 Parts 1 & 5
Safety
EN 60950
CSA 253147 applicable for AC, 48 VDC and 24 VDC product
variants
Environmental
ETS 300 019 Class 3.2
Radio
RSS-GEN
RSS-119
EMI / EMC
This Class A digital apparatus complies with Canadian standard
ICES-003.
Cet appareil numérique de la classe A est conforme à la norme
NMB-003 du Canada
Safety
EN 60950
CSA 253147 applicable for AC, 48 VDC and 24 VDC product
variants
Environmental
ETS 300 019 Class 3.2
IC
Aprisa XE Product Description 8.8.84 NA
Applications | 25
2.
Applications
This section describes some sample applications in which the Aprisa XE terminal is the ideal solution. The
Aprisa XE terminal's integrated multiplexer and digital cross connect, along with the wide range of
interface cards, allow the Aprisa XE to be used to deliver solutions to address many more networking
problems.
The following applications are described:

Extending telecommunications and cellular networks

Delivering POTS and broadband access to remote subscribers

Extending DSL services in remote areas

Supporting mobile radio networks

Supporting utility networks

Linking offices in private networks
Aprisa XE Product Description 8.8.84 NA
26 | Applications
Extending Telecommunications and Cellular Networks
The Aprisa XE terminal offers operators a simple and cost-effective way to extend the reach of wired and
cellular telecommunications networks:

Greater reach whilst maintaining quality
The range of frequencies allows the radio to function in rough terrains over longer paths than
traditional point-to-point radio systems.

Reduction in spectrum licensing costs
The spectrally-efficient design maximizes the amount of data that can be carried in narrow
channels.

Reduction in the amount of infrastructure required in the transport network
Operators can groom traffic from multiple interfaces onto a common backhaul system from
remote exchanges or cell sites back towards the central exchange or MSC.
The Aprisa XE terminal’s expansion of the backhaul and distribution network for inter-exchange and cell
site linking is illustrated below:
The in-built Ethernet interface enables operators to add broadband access and evolve networks to IP when
required.
When demand justifies expanding the wired network to the radio site, operators can re-deploy the Aprisa
XE terminal elsewhere in the network.
Aprisa XE Product Description 8.8.84 NA
Applications | 27
Delivering POTS and Broadband to Remote Subscribers
The Aprisa XE terminal offers operators a quick and cost-effective way to deliver new broadband access
and traditional POTS to remote businesses and low-density subscribers (for example, in response to
government imperatives):

The built-in multiplexer supports a wide range of analogue and digital interfaces to the chassis. This
enables operators to supply voice and data services in remote areas, with minimal need for external
equipment, which means quicker realization of revenue.

The in-built layer-2 Ethernet switch delivers a wide range of broadband services including Internet,
VPN and LAN interconnection, VoIP, video-conferencing, web-hosting and E-business applications. This
enables operators to provide all services with a single box solution.
The Aprisa XE terminal’s delivery of broadband services to remote communities and businesses is
illustrated below:
Aprisa XE Product Description 8.8.84 NA
28 | Applications
Extending DSL Services in Remote Areas
The Aprisa XE terminal offers operators an affordable way to extend xDSL services to remote areas where
subscriber densities are so low that traditional methods are not commercially feasible:

The in-built multiplexer integrates voice and data interfaces into a single radio link. This enables
operators to supply voice and data services in remote areas, with minimal need for external
equipment, which means quicker realization of revenue.

The 2 wire DFXO / DFXS interface transports traditional POTS services. This enables operators to
quickly redeploy DSL and POTS to rural and remote communities.
This figure illustrates the transportation of DSL services across the microwave radio link:
The link transports DSL services to an existing remote POP using Ethernet (for PPPoE systems) or Inverse
Multiplexed ATM over E1 (IMA E1) (for PPPoA systems).
At the remote POP, a ‘mini’ DSLAM terminates the data network and POTS service, and uses existing
copper to deliver POTS and broadband xDSL to the subscriber.
Note: Many vendors now offer ‘mini’ DSLAM products that support 4 to 60 xDSL ports. These mini DSLAM
products can be mounted in street cabinets and small shelters, and are suitable for co-location with the
Aprisa XE terminal.
Aprisa XE Product Description 8.8.84 NA
Applications | 29
Supporting Mobile Radio Networks
The Aprisa XE terminal offers operators of mobile radio networks (for example, first-responders,
emergency services, homeland security, public safety, and disaster recovery organizations) permanent or
temporary support:

Its flexible architecture enables it to inter-connect mobile radio base stations and provide a
reliable backhaul to centralized switches.

It can be redeployed easily in an emergency.
Digital Mobile Radio Networks
The Aprisa XE terminal’s digital interfaces include E1, Ethernet and synchronous serial such as X.21 and
V.35. This means it can support digital mobile radio networks such as TETRA, Tetrapol, APCO-25 / P-25
and other types of digital trunked radio.
Analogue Trunked Radio
The Aprisa XE terminal offers cost-effective in-band or out-of-band linking in trunked mobile radio
networks, where it replaces expensive leased wireline circuits.
For MPT-1327 analogue trunked radio networks, the Aprisa XE terminal’s in-built multiplexer allows the
radio link to transport multiple 4 wire audio and V.24 signalling circuits. At intermediary sites, interfaces
either drop from the terminal to a base station, or pass across to a second or third hop. The Aprisa XE
terminal encapsulates ongoing traffic within an E1 bearer; at the final destination it extracts it and passes
it to the base station via 4 wire audio and V.24.
The cross-connect’s Drop and Insert capability provides simple traffic management across the network.
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30 | Applications
Conventional Radio
The Aprisa XE terminal accommodates conventional mobile radio via 4 wire interfaces with E&M signalling.
E&M provides the signalling to key the transmitter and receiver. Audio is carried as standard PCM or
ADPCM traffic.
The Aprisa XE terminal solution integrates easily into complex conventional networks, for example, those
using voters or conferencing bridges.
Aprisa XE Product Description 8.8.84 NA
Applications | 31
Supporting Utility Networks
The Aprisa XE terminal offers operators of utility networks (for example, electricity, oil, gas, railways and
mining communication) a logical building block to support coverage of wide areas, remote locations and
difficult terrain:

The flexible interfacing architecture allows for easy integration with a wide range of infrastructure
equipment including legacy analogue equipment, IP-based SCADA equipment, telemetry and
teleprotection equipment, as well as traditional voice or PBX and corporate LAN data equipment.
Common use includes:
4 wire interfaces for protection signalling equipment
Asynchronous or synchronous serial interfaces for low and high speed data terminal equipment
Ethernet for IP-based SCADA systems and telemetry equipment
2 wire interfaces for voice circuits

The in-built multiplexer efficiently transports traffic from different sources across a common radio
link. This enables operators to reduce the amount of infrastructure required in the network, which
reduces capital and operational costs and lowers the total cost of owning the network.
The Aprisa XE terminal solution for remote monitoring and control of a utility network is illustrated below:
Aprisa XE Product Description 8.8.84 NA
32 | Applications
Linking Offices in Private Networks
The Aprisa XE terminal offers operators of private networks (for example, large corporate organizations,
government, military, international relief and protection agencies) a cost-effective way to link remote
offices to the central office, that is, the hub of the voice and data network.

The in-built multiplexer and flexible interfacing architecture support a wide range of voice and data
interfaces, which make it simple to link remote PBXs to a central PBX and deliver the corporate LAN to
remote offices.

The dedicated bandwidth minimizes dependency on service providers’ connections that may be shared
by several customers. The licensed frequency provides long-term reliability, security and high
availability. Operators can amortize the cost of the equipment over the life of the link, saving the
ongoing charges of an expensive leased line.
The Aprisa XE terminal solution for ensuring robust independent communications capability is illustrated
below:
In the event of office relocation due to emergency or disaster, operators can re-deploy the Aprisa XE
terminal elsewhere.
Aprisa XE Product Description 8.8.84 NA
Architecture | 33
3.
Architecture
The Aprisa XE terminal’s modular design reduces MTTR (mean time to repair). This section provides an
overview of the main modules.
Modules
The terminal is modular in design, which helps reduce mean time to repair (MTTR). It is designed for 19inch rack mounting and is only 2U high for standard configurations.
The five main modules housed inside the chassis are the transceiver, modem, motherboard, power supply,
and duplexer.
Interface cards are fitted into the eight interface slots on the motherboard. Modules are interconnected
via several buses on the motherboard.
The duplexer is mounted inside or outside the chassis depending on the type and size.
Aprisa XE Product Description 8.8.84 NA
34 | Architecture
The interrelationships between the components are shown below:
Aprisa XE Product Description 8.8.84 NA
Architecture | 35
Front Panel Connections and Indicators
All connections to the terminal are made on the front panel of the unit.
No.
Label
Description
AC or DC power input
DC and AC power supplies are available (AC is shown)
Earth stud
An M5 stud for connection to an external protection ground for
protection against electric shock in case of a fault.
Antenna connector
N-type 50Ω female connector.
Interface slots A to H
There are eight interface slots on the motherboard to fit
interface cards.
ETHERNET
Integrated four-port layer 2 switch.
SETUP
RJ-45 for initial configuration PC connection.
ALARM
RJ-45 connector for two input and four output external alarm
connections.
LED indicators
RSSI
OK
Indicates normal operation and minor and major alarm
conditions.
RX
Indicates status of receive path including normal operation and
alarms such as BER, RSSI and loss of synchronization.
TX
Indicates status of transmit path including normal operation
and alarms such as forward/reverse power and temperature.
ON
Blue LED indicates that there is power to the terminal.
RSSI test point suitable for 2 mm diameter multimeter test lead
pin.
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36 | Architecture
Transceiver
Receiver
The receiver down converts and amplifies the incoming signal so it can be demodulated by the modem:

It down converts the incoming signal at the receive frequency set by the synthesizer. The receive
frequency synthesizer tunes the receiver across the entire band of operation.

It amplifies the 70 MHz IF and passes it through a channel filter to provide main receiver selectivity
and to reject unwanted mixing products. After the last IF amplifier stage, it monitors the RSSI and
adjusts the signal gain to a level suitable for the modem.
During production, 4RF fits an appropriate channel filter for the channel size required.
Aprisa XE Product Description 8.8.84 NA
Architecture | 37
Transmitter
The transmitter sets the final transmit frequency of the outgoing signal, then amplifies it and applies
protection before delivering it to the duplexer.

The modem modulator passes I&Q signals to the transmitter modulator, where a transmit frequency
synthesizer sets the final transmit frequency.

The transmitter passes the signal through a multi-stage high-efficiency linear RF amplifier and
associated forward power detection and control feedback loop.

The transmitter passes the signal through a circulator that provides VSWR protection before delivering
it to the duplexer. The circulator prevents reverse power damage to the transmitter caused by
antenna return loss or no-load situations. The transmitter takes a reverse power measurement from
the circulator to detect VSWR conditions.
Duplexer
The duplexer is an integral component in the Aprisa XE terminal circuit. It incorporates several
bandpass / wavelength filter sections for the transmit and receive paths. The duplexer provides:

Specific transmission mask refinement and transmitter image rejection

RF isolation between the transmitter and receiver sections (so a single antenna is adequate)
4RF tunes the duplexer to centre the passband on the customer’s required operating frequency.
For maximum deployment flexibility, each frequency variant is synthesized and customer-tunable across
the entire frequency range. Operators can re-tune duplexers at depot-level repair facilities with
appropriate test equipment or return them to 4RF for re-tuning as needed.
The duplexer is mounted inside or outside the chassis depending on the type and size (see ‘Duplexers' on
page 17).
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38 | Architecture
Modem
The modem provides the QPSK and QAM modulation and demodulation functions for the Aprisa XE
terminal. Operators can configure the modem modulation type to maximize the link capacity versus the
link performance required.
When receiving incoming signals, the modem:

converts the incoming analogue signal to digital and down converts it into I&Q signals for processing

passes the I&Q signals through digital filtering and adaptive equalization

error-corrects the resultant signal and extracts performance data

rate-converts data, frames it and passes it to the traffic bus for use by the interface cards

provides a recovered clock from the incoming received signal
When transmitting outgoing signals, the modem:

frames data from the traffic bus with timing and adds FEC information

enables the operator to test the radio link to confirm that modem and RF functions are working
independently of the interface data

creates I&Q signals and passes them at the base band frequency through digital to analogue converters
and on to the transmitter
The Aprisa XE terminal uses direct modulation technology, so there are no IF or up-conversion stages in
the modulator or transmitter.
The modem provides error counts, SNR and constellation information via the SuperVisor software, so the
operator can monitor the performance of the data link.
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Architecture | 39
Motherboard
The motherboard contains the Aprisa XE terminal’s central microprocessor and traffic management control
functions, including traffic multiplexing and cross-connect:

The power PC-based microprocessor interfaces with a Linux-based web server to run the
SuperVisor software (see ‘SuperVisor’ on page 59).

Its FPGA manages the traffic distribution to/from interface ports on the cards fitted to the PCI
slots on the motherboard. The motherboard has eight standard PCI slots for interface cards and
one extended PCI slot for the modem.
The control bus gathers alarms via SNMP traps and stores them in the web server. LED indicators on the
front fascia show the status of the radio link.
An alarm I/O port, with two inputs and four outputs, enables operators to connect to external alarm
monitoring equipment.
The motherboard’s internal power supply delivers +3.3, ± 5 and ± 12 VDC nominal inputs to the terminal
elements. Operators can change the terminal power supply option at depot level if their supply voltage
requirement changes after shipment.
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40 | Architecture
Power Supplies
AC Power Supply
There is one AC power supply for the product. This AC power supply is auto-sensing to operate with a
nominal input voltage of 115 Vrms or 230 Vrms.
The power input is terminated on the front panel of the terminal using a standard IEC plug. This power
supply has a power on/off switch.
A power cable is included in the accessory kit and is pre-fitted with an IEC socket connector and the
country-specific plug that was specified when the order was placed.
DC Power Supply
There are four DC power supply options for the terminal 12 VDC, 12 VDC Low Power, 24 VDC and 48 VDC.
The appropriate power cable for the power supply ordered is included in the accessory kit.
Mounting Options
The Aprisa XE terminal is designed for 19-inch rack mounting.
The terminal height is dependent on the product variant and the mounting of the duplexer (internal or
external) (see ‘Mechanical' on page 22).
Air venting space above or below the product is not required as the terminal has rear mounted fans.
The Aprisa XE terminal can only be mounted on a wall surface with a 375 x 441 x 137 mm wall mount
bracket part number ‘APAC-MBRK-XEB’.
Heat Dissipation
The Aprisa XE terminal has two fans in the rear of the chassis and fans in the power supply.
These fans are required to keep the Aprisa XE terminal below a preset temperature and to meet the
operating temperature and RF power output specifications.
The SuperVisor software monitors the chassis fans and raises an alarm in the event of a failure.
Aprisa XE Product Description 8.8.84 NA
Interfaces | 41
4.
Interfaces
The Aprisa XE terminal has an integrated layer-2 Ethernet switch for Ethernet and IP based traffic and
eight standard PCI slots for interface cards.
This section details the Aprisa XE terminal’s interfaces:

In-built quad port Ethernet bridge fast ethernet interface

QETH Quad port Ethernet interface card supporting 10Base-T or 100Base-TX for transport of user
Ethernet traffic.

QJET Quad port E1 / T1 interface card

DFXO Dual port 2 wire Foreign Exchange Office interface card

DFXS Dual port 2 wire Foreign Exchange Subscriber interface card

Q4EM Quad port 4 wire E&M interface card

QV24 Quad port low speed data serial interface card

HSS Single port synchronous high speed data serial interface card
Interface Specifications
The Aprisa XE terminal’s motherboard features an integrated 10Base-T/100Base-TX layer-2 Ethernet
switch.
To simplify network setup, each port supports auto-negotiation and auto-sensing MDI/MDIX. Operators can
select from the following preset modes:

10Base-T half or full duplex

100Base-TX half or full duplex
The switch is IEEE 802.3-compatible. It supports both VLAN tagging and QoS. In its most basic mode the
switch passes on these extended packets as it receives them.
Ethernet Interface Connections
Pin
number
Pin function
Direction
TIA-568A wire
colour
Transmit
Output
Green/white
Transmit
Output
Green
Receive
Input
Orange/white
Not used
Blue
Not used
Blue/white
Receive
Not used
Brown/white
Not used
Brown
Input
Aprisa XE Product Description 8.8.84 NA
Orange
42 | Interfaces
QETH Interface Connections
Pin number
Pin function
Direction
TIA-568A wire colour
Transmit
Output
Green/white
Transmit
Output
Green
Receive
Input
Orange/white
Not used
Blue
Not used
Blue/white
Receive
Not used
Brown/white
Not used
Brown
Input
Orange
RJ45 connector LED indicators
LED
Status
Explanation
Green
On
Ethernet signal received
Green
Flashing
Indicates data traffic present on the interface
Note: Do not connect Power over Ethernet (PoE) connections to the Aprisa XE Ethernet ports as this will
damage the port.
VLAN Tagging
The Aprisa XE terminal’s VLAN tagging conforms to IEEE 802.1Q. All ports default to the same VLAN ID.
This VLAN can carry both user and network management traffic.
To allow the radio link to transport traffic in existing VLANS, the Aprisa XE terminal supports double
tagging. It adds VLAN IDs at the ingress port and removes them at the egress port, and retains the original
VLAN ID for Ethernet traffic carried across the radio link.
QoS
The Aprisa XE terminal determines QoS classification via four priority queues for each port. Operators can
select whether the QoS uses the IEEE 802.1p or Cisco-compatible standard, as required.
Port-based ingress rate-limiting and frame prioritization functions ensure quality of service:

Port-based ingress rate-limiting: By default, the Ethernet switch uses all the bandwidth allocated to it
in the cross-connect and shares it across all four ports. Operators can protect the radio’s traffic
buffers against flooding by rate-limiting each port to a discrete setting: 128 kbit/s, 256 kbit/s,
512 kbit/s, 1 Mbit/s, 2 Mbit/s, 4 Mbit/s, 8 Mbit/s or none.

Traffic prioritization: The Aprisa XE terminal always sends high-priority traffic ahead of lower-priority
traffic. A high-speed address look-up engine, supporting up to 2048 preferential MAC addresses, filters
and forwards with automatic learning and aging. This ensures that only traffic destined for the far end
of the link is sent.
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Interfaces | 43
Ethernet Interface
General
Diagnostics
Interface
RJ-45 * 4
Cabling
CAT-5 UTP, supports auto MDIX (Standard Ethernet)
Maximum line length
100 metres on cat-5 or better
Bandwidth allocation
n x 8 kbit/s up to maximum available.
n x 64 kbit/s is recommended for terminals with higher
channel size (> 500 kHz, 32 QAM).
The ethernet capacity maximum is determined by the
available radio link capacity.
Maximum packet size
‘Standard’ Ethernet packets: max 1518 octets
Tagged and double-tagged packets: max 1526 octets
Data buffer size
Up to 256 frames
Address table size
2048 IP addresses
WAN protocol
HDLC
Ethernet mode
10Base-T or 100Base-TX
Full duplex or half duplex
(Auto-negotiating and auto-sensing)
VLAN tagging
IEEE 802.1Q VLAN tagging
QoS
IEEE 802.1p
Ipv4 TOS DiffServ
Ipv6 traffic class
Spanning Tree
Forwards 802.1D Spanning Tree Protocol packets up to 1526
bytes in length.
Green LED
On: Ethernet signal received
Flashing: Indicates data traffic present on the interface
Aprisa XE Product Description 8.8.84 NA
44 | Interfaces
QJET Quad E1 / T1 Interface
The quad port 2 Mbit/s G.703 / 4 E1 / T1 digital trunk interface allows the Aprisa
XE terminal to connect directly to E1 / T1 trunks or other G.703 / 4-compliant
equipment.
Operators can groom individual or multiple timeslots from any E1 / T1 interface in
the Aprisa XE terminal and transmit them across the radio link and back into the
transport network on a common bearer.
The Aprisa XE terminal also supports Drop and Insert applications. Operators can
map any E1 / T1 timeslot from any interface to any other E1 / T1 timeslot on any
other E1 / T1 interface, either locally or at the remote end.
General
Standard
G.703 and G.704
Interface
RJ-45
Line termination impedance
E1 120 Ω balanced
T1 100 Ω balanced
Maximum line length
E1 typically up to 1.7 km (43 dB of loss at 1024 kHz in
standard 0.4 mm2 cable).
T1 typically up to 1.7 km (36 dB of loss at 772 kHz in
standard 0.4 mm2 cable).
Bandwidth allocation
Framed E1s require a link bandwidth of 2048 kbit/s.
Unframed E1s require a link bandwidth of 2088 kbit/s.
Framed T1s require a link bandwidth of 1544 kbit/s.
Unframed T1s require a link bandwidth of 1584 kbit/s.
Line code
E1 HDB3 or AMI
T1 B8ZS or AMI
Diagnostics
Tx Waveform Shaper
(T1 only)
0 ~ 133 ft
133 ~ 266 ft
266 ~ 399 ft
399 ~ 533 ft
533 ~ 655 ft
Stability
±50 ppm
Jitter performance
G.823 (sections 2 & 3)
Green LED
On: Interface is operational and in service
Off: No 2 Mbit/s input signal
Flashing: The interface loopback is active.
Yellow LED
On: Alarm
Off: No alarm
Aprisa XE Product Description 8.8.84 NA
Interfaces | 45
Q4EM Quad 4 Wire E&M Interface
The Aprisa XE terminal’s 4 wire interface digitizes analogue signals at either 64
kbit/s PCM (G.711-compliant) or 32, 24 or 16 kbit/s ADPCM compression (G.726compliant).
The Q4EM E&M signalling leads are optically isolated, bi-directional lines which
can be externally referenced to meet any of the EIA-464 connection types I,
II,IV or V (as shown below).
General
Analogue
Audio
64 kbit/s (PCM A-Law as per ITU G.711)
32, 24 & 16 kbit/s (ADPCM as per ITU G.726 and ANSI TI.303)
E&M signalling
8 kbit/s per port
Maximum line length
400 metres
Transmission performance
characteristics
ITU G.712 E4 for an operating level range of -14 dBr to
+4 dBr for a G.711 64 kbit/s coded channel
Input level range
-14.0 dBr to +4.0 dBr in 0.5 dB steps
Output level range
-14.0 dBr to +4.0 dBr in 0.5 dB steps
Default output level
0 dBr
Default input level
0 dBr
Maximum level
+3.14 dBm0
Port impedance
600 Ω
Return loss
better than 25 dB over the frequency range 200 - 3600 Hz
Transformer isolation
3.88 kV
End to end gain
Frequency response
0 dB ± 0.1 dB (300-3000 Hz)
0 dB ± 0.5 dB (250-3400 Hz)
Audio line protection
Secondary protection
Signal to total distortion
> 30 dB (0 dBm0 to -30 dBm0)
> 22 dB (-45 dBm0)
Aprisa XE Product Description 8.8.84 NA
46 | Interfaces
Signalling
Diagnostics
E&M
Mode independent (external power supply / ground
reference required)
Pulse distortion
4:1 multiplexed < 2.250 ms
Non-multiplexed  250 µs
M circuit loop current
5.0 to 6.5 mA (constant current)
M circuit detection voltage
9 VDC
M circuit maximum voltage
60 VDC
M circuit protection
Current limited to 6.5 mA, overvoltage to 100 V
E circuit impedance
45 Ω closed, > 100 kΩ open
E circuit current maximum
100 mA
E circuit maximum voltage
60 V
Green LED
Off: No external source applied to M wire
On: External source applied to M wire
Flashing: The interface loopback is active
Yellow LED
Off: E wire relay contact open
On: E wire relay contact closed
Aprisa XE Product Description 8.8.84 NA
Interfaces | 47
E&M Signalling Types
The Q4EM E&M signalling leads are optically isolated, bi-directional lines which can be externally
referenced to meet any of the EIA-464 connection types I, II,IV or V (as shown below).
The M1 lead associated with the M wire detector can be externally referenced to earth or battery as
required.
The E1 lead associated with the E wire output can be externally referenced to earth or battery as
required.
Aprisa XE Product Description 8.8.84 NA
48 | Interfaces
Aprisa XE Product Description 8.8.84 NA
Interfaces | 49
DFXO Dual Foreign Exchange Office Interface
The Exchange interface connects the Aprisa XE terminal to the telephone network
via a 2 wire line. Each 2 wire channel has two ports: one connects to a customer;
the other is a local test port.
The Aprisa XE terminal digitizes analogue signals using either 64 kbit/s PCM
(G.711-compliant) or 32, 24 or 16 kbit/s ADPCM compression (G.726-compliant),
providing phone-quality voice transmission. It uses CAS to signal to the remote
DFXS.
Line impedances are synthesized with high-performance DSP architecture.
General
Analogue
Audio
64 kbit/s (PCM as per ITU G.711)
32, 24 and 16 kbit/s (ADPCM as per ITU G.726 and ANSI
TI.303)
Signalling allocation
8 or 32 kbit/s allocated for CAS
Companding
A-Law or µ-Law
Maximum line length
600 metres (2000 feet) on 0.4 mm / 26 AWG copper pair
Calling line ID (CLI)
Support provided for ETSI: EN 300 659-1 & 2 and BT: SIN 227
and 242
Fax
Conforms to G3 standard for 64 kbit/s PCM and 32 kbit/s
ADPCM compression
Transmission performance
characteristics
ITU G.712 E2 for an operating level range of -6 dBr to +1 dBr
for a G.711 64 kbit/s coded channel
Input level range
-10 dBr to +1.0 dBr in 0.5 dB steps
Output level range
-10 dBr to +1.0 dBr in 0.5 dB steps
Default Input level
-4.0 dBr
Default Output level
-1.0 dBr
Maximum level
+3.14 dBm0
Line impedance / Hybrid
balance impedance options
600 Ω
900 Ω
600 Ω + 2.16 µF
900 Ω + 2.16 µF
270 Ω + 750 Ω || 150 nF (TBR-21)
220 Ω + 820 Ω || 120 nF (TN12)
370 Ω + 620 Ω || 310 nF (BT3)
320 Ω + 1050 Ω || 210 nF (BT Network)
200 Ω + 680 Ω || 100 nF (China)
Return Loss
better than 12 dB 300 Hz to 600 Hz
better than 15 dB 600 Hz to 3400 Hz
Trans hybrid loss
better than 13 dB 300 Hz to 3400 Hz
better than 17 dB 500 Hz to 2500 Hz
(with matched external line and hybrid balance impedance)
Common mode rejection
ratio
better than 40 dB 50 Hz to 3800 Hz
better than 46 dB 600 Hz to 3400 Hz
Echo Canceller
provides up to 64 ms of echo cancellation
reduces the echo by more than 15 dB at an input signal level
of 10 dBm0.
Aprisa XE Product Description 8.8.84 NA
50 | Interfaces
Signalling
DTMF dialing
Standard DTMF dialing over the voice channel
Pulse dialing
Transparent decadic signalling at 7 - 14 PPS with break
period limits of 60 - 73 %
Pulse distortion
4:1 multiplexed < 2.250 ms
Non-multiplexed  250 µs
Reversals
Line polarity reversal detection
Loop current limit
maximum of 60 mA with Loop Current Limiter On
maximum of 160 mA with Loop Current Limiter Off
Metering level sensitivity
12 kHz / 16 kHz billing tone detection with a selectable
level sensitivity of -17dBm to -40 dBm in 1dB steps into 200
Ω
(60 mV rms to 5 mV rms into 200 Ω).
Metering level maximum
The maximum level of metering signal the DFXO can tolerate
without voice band interference is 0.8 Vrms into 200 Ω.
Loop resistance on-hook
>1 MΩ
Ringing detection threshold
Three selectable options of 16 Vrms, 26 Vrms and 49 Vrms ±
20 %.
Ringing detection frequency
15 to 50 Hz sine wave
Ringing input impedance
Two selectable options of >1 MΩ and >12 kΩ
Ringing DC offset range
tolerance
0 to -75VDC
Ringing input voltage
maximum
up to 100 Vrms
Ringing cadence limits
Ringing ON:
Ringing OFF:
min
270 ms
180 ms
max
10 secs
4 secs
Ringing cadence distortion
< 40 ms cadence error on both ring and silent periods
Physical
Physical interface
Dual RJ-45 per port (1 line port, 1 monitor port)
Diagnostics
Green LED
Off: Interface operational but not in service
On: Interface in service
Flashing: Cadenced ringing on line
Yellow LED
Off: No interface alarm
On: Interface alarm
Flashing: The interface loopback is active
Aprisa XE Product Description 8.8.84 NA
Interfaces | 51
DFXS Dual Foreign Exchange Subscriber Interface
The subscriber interface connects the Aprisa XE terminal to the customers' 2 wire
telephone via a 2 wire line. Each 2 wire channel has two ports: one connects to a
customer; the other is a local test port.
The Aprisa XE terminal digitizes analogue signals using either 64 kbit/s PCM
(G.711-compliant) or 32, 24 or 16 kbit/s ADPCM compression (G.726-compliant),
providing phone-quality voice transmission. It uses CAS to signal to the remote
DFXS.
Line impedances are synthesized with high-performance DSP architecture.
General
Analogue
Audio
64 kbit/s (PCM as per ITU G.711)
32, 24 and 16 kbit/s (ADPCM as per ITU G.726 and ANSI
TI.303)
Signalling Allocation
8-32 kbit/s allocated for CAS
Compression coding
A-Law or µ-Law
Maximum line length
600 metres (2000 feet) on 0.4 mm / 26 AWG copper pair
Calling line ID (CLI)
Support provided for ETSI: EN 300 659-1 & 2 and BT: SIN 227
and 242
Fax
Conforms to G3 standard for 64 kbit/s PCM and 32 kbit/s
ADPCM compression
Transmission performance
characteristics
ITU G.712 E2 for an operating level range of -6 dBr to
+2.0 dBr for a G.711 64 kbit/s coded channel
Input level range
-9.0 dBr to +2.0 dBr in 0.5 dB steps
Output level range
-9.5 dBr to +2.5 dBr in 0.5 dB steps
Default Input level
+1.0 dBr
Default Output level
-6.0 dBr
Maximum level
+3.14 dBm0
Line impedance / Hybrid
balance impedance options
600 Ω
900 Ω
600 Ω + 2.16 µF
900 Ω + 2.16 µF
220 Ω + (820 Ω || 120 nF) (TN12)
270 Ω + (750 Ω || 150 nF) (TBR21)
370 Ω + (620 Ω || 310 nF) (BT3)
Return Loss
better than 12 dB 300 Hz to 600 Hz
better than 15 dB 600 Hz to 3400 Hz
Trans hybrid loss
better than 13 dB 300 Hz to 3400 Hz
better than 17 dB 500 Hz to 2500 Hz
(with matched external line and hybrid balance impedance)
Common mode rejection
ratio
better than 40 dB 50 Hz to 3800 Hz
better than 46 dB 600 Hz to 3400 Hz
Aprisa XE Product Description 8.8.84 NA
52 | Interfaces
Signalling
Feed voltage output
-48 V (160 + 160 Ω voltage source current limited)
Loop current limit
35 mA ± 10 %.
Seize signal
Loop start only (no ground start)
Loop detect threshold
9 - 12 mA (step function between on hook and off hook)
Loop non-seizure current
> 6 mA (step function between on hook and off hook)
Loop release threshold
> 4 mA
DTMF dialing
Standard DTMF dialing over the voice channel
Pulse dialing
Transparent decadic signalling at 7 - 14 PPS with break
period limits of 60 - 73 % (with loop current > 23 mA)
Pulse distortion
4:1 multiplexed < 2.250 ms
Non-multiplexed  250 µs
Reversals output
Line polarity reversal output (optional)
Metering output frequency
12 kHz / 16 kHz ± 0.5 %.
Metering output voltage
Four selectable output voltages of 100 mV, 200 mV, 300 mV
and 400 mV rms into 200 Ω ± 20 % sourced via the Line
Impedance setting but limited to a maximum open circuit
voltage of 1 Vrms.
Metering output distortion
Billing tone total distortion < 5 %.
Ringer waveform
Sinusoidal with a maximum total distortion of 10% (into 3
REN load)
Ringer voltage (open circuit)
Five selectable ringer output voltages sourced via an
internal ringing resistance of 178 per port.
The ringing output is a composite balanced AC ringing
voltage with a differential DC offset voltage.
60 Vrms + 0 VDC
55 Vrms + 10 VDC
50 Vrms + 18 VDC
45 Vrms + 22 VDC
40 Vrms + 24 VDC
Both the DC and AC components have a tolerance of ± 5%.
Physical
Diagnostics
Ringer output frequency
Three selectable options of 17, 25 or 50 Hz ± 5%
Ringer output power
60 Vrms source into a load of 2 REN
45 Vrms source into a load of 3 REN
(1 REN  6930 
F)
Ring trip
Ring trip will ocurr in < 150 ms following DC loop of > 20 mA
Ring trip immunity
Ring trip will not ocurr if the DFXS outputs ringing into a
load of 500  in series with 4.4F or less.
Physical interface
Dual RJ-45 per port (1 line port, 1 monitor port)
Line protection
Secondary protection (4RF recommends the use of external
primary protection in lightning prone areas)
Green LED
Off: Interface operational but not in service
On: Interface in service
Flashing: Cadenced ringing on line
Yellow LED
Off: No interface alarm
On: Interface alarm
Flashing: The interface loopback is active
Aprisa XE Product Description 8.8.84 NA
Interfaces | 53
QV24 Quad V.24 Serial Data Interface
The Aprisa XE terminal’s EIA/TIA-232-compliant V.24/RS-232 interface is
configured as a Cisco® pinout DCE. For DCE-to-DCE connection, the interface
terminates to a DTE using a straight-through cable or a crossover cable (null
modem).
There are two modes of operation of the QV24 Serial Interface Card; QV24
asynchronous and QV24S synchronous.
The interface uses two control lines for handshaking. It transports the CTS signal
across the link and displays it at the remote Aprisa XE terminal as an RTS output.
QV24 Asynchronous Operation
General
Interface
ITU-T V.24 / EIA/TIA RS-232E
Interface direction
DCE only
Bandwidth allocation
8 to 120 kbit/s in 8 kbit/s steps (dependent on rate
selected)
Control line allocation
8 kbit/s
Maximum line length
10 metres
Data clamp
Mark hold when out of sync.
Control line clamp
Off when loss of sync.
Clock
Internally generated from 2.048 MHz system clock
(synchronized at both ends)
Transparent mode
Operation is completely transparent but limited to 0-600
bit/s
Standard mode data bits
7 or 8 bits
Standard mode parity
Transparent (enable / disable)
Standard mode stop bits
1 or 2 bits
Asynchronous Data rates
300, 600, 1200, 2400, 4800, 7200, 9600, 12800, 14400,
19200, 23040, 28800, 38400, 57600 and 115200 bit/s
Control signals
End-to-end
CTS to RTS, DSR to DTR
Diagnostics
Green LED
Indicates RX data traffic present
Yellow LED
Indicates TX data traffic present
Async
parameters
Aprisa XE Product Description 8.8.84 NA
54 | Interfaces
QV24S Synchronous Operation
There are two modes of operation of the QV24S synchronous, synchronous and over sampling modes.
A QV24S interface is always configured as a DCE.
QV24S Synchronous Mode
In synchronous mode, interface data is synchronously mapped to radio capacity using proprietary subrate
multiplexing. QV24S interfaces are required at both ends of the circuit.
General
Interface
ITU-T V.24 / EIA/TIA RS-232E
Interface direction
DCE only
Bandwidth allocation
8 to 120 kbit/s in 8 kbit/s steps (dependent on rate
selected)
Control line allocation
8 kbit/s
Maximum line length
10 metres
Data clamp
Mark hold when out of sync.
Control line clamp
Off when loss of sync.
Synchronous Data rates
300, 600, 1200, 2400, 4800, 9600 and 19200 bit/s
Control signals
End-to-end
CTS to RTS, DSR to DTR
Diagnostics
Green LED
Indicates RX data traffic present
Yellow LED
Indicates TX data traffic present
QV24S Over Sampling Mode
In over sampling mode, 64 kbit/s of radio capacity is allocated to the circuit and the incoming interface
data is sampled at a fixed 64 kHz. This timeslot can be cross connected to an E1 or T1. This over sampling
mode can be operated up to 19.2 kbit/s.
There will be some unavoidable distortion in mark space ratios (jitter) of the transported V.24 circuit. This
effect will become progressively more significant as the baud rate of the V.24 circuit increases or the
number of data conversions increases.
In over sampling mode, the DTE clock input is not used and there is no DCE output clock available.
Aprisa XE Product Description 8.8.84 NA
Interfaces | 55
HSS Single High Speed Synchronous Interface
The Aprisa XE terminal’s synchronous high-speed synchronous data interface (sync.
serial) allows flexibility. It supports a range of n x 64 kbit/s synchronous high-speed
data options acting as either DCE or DTE, and data rates from 8 kbit/s up to
2048 kbit/s.
Options include:

V.35

X.21

RS-530

RS-449
Operators can change interface simply by changing a cable. The connector on the HSS card is a high
density LHF-60, as used on standard Cisco WAN port serial interface cables and equivalents.
General
Diagnostics
Interfaces
ITU-T V.35
ITU-T X.21
EIA/TIA RS-530
EIA/TIA RS-449
Bandwidth allocation
8-2048 kbit/s in 8 kbit/s steps (dependent on rate selected)
8 kbit/s for control lines
Maximum line length
3 metres
Clock
Internally generated from 2.048 MHz system clock
(synchronized at both ends) on DCE-DCE mode.
Clock provided by external DCE when in DTE mode.
Remote DCE outputs clock-timed by incoming clock at DTE.
Top Green LED
On: Normal operation
Flashing: Loopback
Lower Green LED
On: Normal operation
Aprisa XE Product Description 8.8.84 NA
56 | Interfaces
Handshaking and Clocking Options
The HSS interface card is capable of acting as a DTE or DCE. This is determined by the interface cable that
is connected to the interface card and specified as part of the HSS part number. When connecting to a
DTE the Aprisa XE must be the DCE. A DCE interface must be specified. When connecting to a DCE device a
DTE interface must be specified.
This scenario shows the Aprisa XE terminal link acting in ‘Pipe mode’ where the Aprisa link is passing
through traffic from the DTE to the DCE.
Aprisa XE Product Description 8.8.84 NA
Interfaces | 57
This scenario shows the Aprisa XE terminal link acting in ‘Cloud mode’ where the Aprisa link is passing
through traffic from one DTE to another DTE via the Aprisa link. A null-modem cable would normally be
used in this scenario, but since the Aprisa link is acting as a network, the null-modem cable is not required
and the functionality provided in the terminal.
Along with the different operating modes, the Aprisa XE HSS interface card can provide a wide range of
clocking options when used in the ‘pipe mode’ and ‘cloud mode’. The various clocking options allow clock
signals to be passed across the link or regenerated at the far end.
The control lines required by the supported synchronous interfaces are software configurable to provide
the necessary outputs to connected devices. Typically they can be set to be always on or always off, or to
follow the state of the RF link or a remote input condition.
For details on the recommended clocking options and control line functionality, please contact 4RF
customer support.
Aprisa XE Product Description 8.8.84 NA
SuperVisor | 59
5.
SuperVisor
The SuperVisor software enables operators to set up and manage the Aprisa XE terminal.
It is an embedded web server application built into the Aprisa XE terminal’s operating system.
Operators can use any major web browser (such as Mozilla Firefox, Microsoft® Internet Explorer, Netscape
Navigator) to:

Configure radio and interface parameters

Monitor performance, terminal status and alarm details
Configuring the Aprisa XE Terminal
The SuperVisor software enables operators to set radio parameters such as frequencies, modulation and
power levels. It passes parameters to the web server, which uses SNMP to load them into the various
elements within the terminal.
Monitoring the Aprisa XE Terminal
The SuperVisor software uses SNMP to interrogate the elements of the terminal over a control bus. It
stores the variables in the web server where they are available for retrieval by the browser.
Aprisa XE Product Description 8.8.84 NA
60 | SuperVisor
Operator Rights and Access Levels
The SuperVisor software has three access levels, each of which has certain rights:

View — allows operators to view Aprisa XE terminal information

Modify — allows operators to configure Aprisa XE terminal parameters

Admin — allows system administrators to perform administration tasks
Viewing the Status of the Link
The Summary page appears when the operator logs on. It shows the status of the link including the
following parameters:

Transmit and receive frequencies

Transmit power output level and received signal strength

Terminal and link status

Terminal name, terminal ID, and contact details
Aprisa XE Product Description 8.8.84 NA
SuperVisor | 61
Configuring the Basic Terminal Settings
The Basic Terminal Settings page allows the operator to configure the basic Terminal settings including:

Receive frequency MHz

Transmit frequency MHz

Transmit power dBm

Channel size MHz

Modulation type

Interleaver State

The terminal name, terminal ID, location and contact details
The radio channel size is factory set to the size specified in the purchase order.
Aprisa XE Product Description 8.8.84 NA
62 | SuperVisor
Configuring the Interface Ports and Cross Connect
The Interface Summary page allows the operator to configure each port on each interface card. When the
operator selects a port, the SuperVisor software automatically detects each interface card and makes
available the relevant configuration options.
Interface Ports
The Configure Interface provides menu options for configuration of each of the interface card types
installed in the interface slots, for example:

Interface port settings

Gains and impedances

Compression levels

Data rates

Loopbacks
Aprisa XE Product Description 8.8.84 NA
SuperVisor | 63
Loopback Functionality
The Aprisa XE terminal provides loopback functionality for link commissioning and debugging. The
loopback simultaneously sets a radio and line facing loopback, and can be positioned at different points in
the traffic path. The loopbacks provided with each interface are:
Interface loopback
The SuperVisor software sets this loopback at the interface port. It loops back all traffic at the physical
interface to and from the terminal.
Cross-connect loopback
The SuperVisor software sets this loopback at the cross-connect. It loops back all traffic at the digital
interface to and from the modem.
Loopbacks are configured by the operator using the SuperVisor software.
Configuring the Cross Connects
The Cross Connections application is a software application that you can use to:

display and configure the traffic and signalling cross connections between interface ports

save and load configuration files

operate in conjunction with SuperVisor
Aprisa XE Product Description 8.8.84 NA
64 | SuperVisor
Monitoring Performance and Troubleshooting Problems
The SuperVisor software provides comprehensive alarm diagnostics, including:

Transmitter Forward power

Transmitter Reverse power

Transmitter temperature

Loss of RF link synchronization

RSSI

Internal voltages

Correctable and uncorrectable RF link errors

E1 and other interface card alarms

Fan status

External alarms status
Aprisa XE Product Description 8.8.84 NA
SuperVisor | 65
In addition to alarms, the SuperVisor software provides link performance functions for both the local and
remote terminal. Performance monitoring functions include:

Error count statistics

RSSI

SNR

Constellation display
Aprisa XE Product Description 8.8.84 NA
Network Management | 67
6.
Network Management
Operators can use any industry-standard SNMPc Management software, such as Castle Rock's SNMPc
(www.castlerock.com), to manage an Aprisa XE terminal network and to configure radio and interface
parameters.
Using an SNMPc client running on a standard PC, operators can interrogate SNMP agents within the Aprisa
XE terminal. SNMP traps and events raise alarms and log performance criteria within the SNMPc network
management platform.
The SNMPc client software can remotely access many Aprisa XE terminal links in a network from one
location via an IP network. The software polls the terminals in the network and monitors their status,
capturing alarms and fault report events and alerting the operator by visual indication and audible alarm.
It time-stamps events and stores them in a database for later analysis.
Aprisa XE Product Description 8.8.84 NA
68 | Network Management
SNMPc Network Management (single client)
Alternatively, operators can configure the system to operate within a Client Server-type architecture. This
involves configuring many SNMPc clients to run in a server mode and loading a server module onto the
Client PC.
The server module interrogates the Aprisa XE terminal’s SNMP agents via the server’s client application.
External SNMPc clients interrogate the server for details of each of the individual Aprisa XE terminals.
SNMP Network Management (Client / Server setup)
Aprisa XE Product Description 8.8.84 NA
Protected Options | 69
7.
Protected Options
The Aprisa XE terminal is available in one of two protected options:

MHSB - Monitored Hot Stand By - offers equipment redundancy.

HSD - Hitless Space Diversity - hitless RF receive path protection and hot standby transmitter
redundancy.
Monitored Hot Stand By (MHSB)
MHSB provides equipment redundancy and protection for up to 32 interface ports. It offers protection
against any single point of failure in the radio path using two duplicated systems interconnected via two
1U switching units.
The first is the RF switch that interconnects with the transceiver in each terminal unit via SMA connectors
on the front panels. The RF switch also houses a common duplexer. The receive path of the duplexer is
split by means of a splitter to both the radio transceivers. The transmit path is switched via a transmit
relay. Only the active transmit path is fed to the relay output and on to the duplexer; the inactive
transmit path is fed to a dummy load.
The second unit is a master tributary switch that monitors the alarm ports of the connected terminals and
makes a switching decision based on a pre-configured set of alarm conditions. The CPU inside the master
tributary switch controls the RF switch and also up to three slave tributary switches connected to the RF
switch.
Each tributary switch protects up to eight RJ-45 interface ports, or two synchronous serial ports (using a
special adapter cable). The master tributary switch also protects the integrated Ethernet interface.
Each tributary switch has one RJ-45 input and two RJ-45 outputs for each interface to drive the duplicated
interface cards in each of the protected terminals.
When specifying MHSB, you should ensure that duplicate interface cards are ordered for each terminal and
if you require protection for more than eight ports, additional tributary switches.
Aprisa XE Product Description 8.8.84 NA
70 | Protected Options
Aprisa XE Product Description 8.8.84 NA
Protected Options | 71
Hitless Space Diversity (HSD)
HSD provides hitless RF receive path protection and hot standby transmitter redundancy. It is typically
deployed for paths where high path availability is required.
An Aprisa XE hitless space diversity terminal comprises two radio terminals, radio A and radio B.
Radio A is the primary radio which is fitted with the interface cards and connects to antenna A.
Antenna A always carries the transmitted signal and the received signal for Radio A.
Radio B is the secondary radio the receiver of which connects to antenna B. The transmitter in this radio is
the standby transmitter.
In the event of a radio A active transmitter failure, radio B transmitter becomes active.
Antenna B only carries the received signal for Radio B. This antenna is physically separated on the tower
by a pre-determined distance from Antenna A.
As both radios have a receive path, traffic from the path with the best received bit error rate is routed to
the customer interfaces in radio A.
Customer interfaces are provided on radio A only in interface slots A to G. Interface connections to
Ethernet and the external alarm inputs and outputs are also provided on radio A only.
End
Aprisa XE Product Description 8.8.84 NA

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4RF XE757M170 Digital Transceiver User Manual Aprisa XE Product Description 8 8 84 NA

4RF Limited Digital Transceiver Aprisa XE Product Description 8 8 84 NA

User Manual

FCC ID Filing: UIPXE757M170

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