Arcwave AX1255 ArcXTEND Wireless Hub Access Point User Manual 41FF9EC4 410D 10B8EE

Arcwave, Inc. ArcXTEND Wireless Hub Access Point 41FF9EC4 410D 10B8EE

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Users Manual

ARCXtend Wireless Plant Extension

Solution

5.8 GHz / 5.3 GHz Operation

User Manual

R1.4 Issue 4

P/N: 920-20003-010

910 Campisi Way, Suite 1C,

Campbell, CA 95008 USA,

Phone: 408-558-2300

www.arcwaveinc.com

ARCXTEND USER MANUAL – R1.4, ISSUE 4

REVISION HISTORY

ISSUE # AUTHOR CHECK OUT CHECK IN COMMENTS

0.5 CM 09/21/2004 R1.4 DRAFT - DOCUMENT IN PROCESS

1.3 CM 10/25/04 12/07/04 R.14 ISSUE 1.3 – INCORPORATED EDITS

4 CM 12/22/04 01/07/05 R1.4 ISSUE 4

UPDATED HUB POWER CONSUMPTION SPECIFICATION

UPDATE DS RANGE SPECIFICATIONS

CHANGED POWER INSERTER DIAGRAM,

UPDATED HUB TX POWER AND GAIN VALUES

REMOVED INDUSTRY CANDA CERTIFICATION

CHANGED FCC CERTIFICATION FROM CLASS B TO

CLASS A

ADDED NOTE THAT HIGH POWER TRANMIST MODE IS

FOR USE WITH AX1255-VM-90 AND AX1255-SM-90 HUBS

ADDED NOTE THAT THE DOWNSTREAM POWER LEVEL

INTO THE CABLE MODEM WITH 256 QAM OPERATION IS -

6 TO +15 DBMV.

ADDED MAXIMUM DISTANCE OF 300 FEET FROM CPE TO

18 VDC POWER PACK

UPDATED DEFAULT UPSTREAM BAND SETTING TABLE

ADDED PART 15, SECTION 15.21 USERS WARINING.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

NOTICES

The information in this publication is subject to change without notice. Arcwave shall not be liable

for technical or editorial errors or omissions nor for any damages resulting from the use of this

material.

Each configuration tested or described may or may not be the only available solution. This test is

not a determination of product quality or correctness, nor does it ensure compliance with any

federal, state or local requirements. Arcwave does not warrant products other than its own strictly

as stated in Arcwave’s product warranties.

U.S. Federal Communication Commission (FCC) Notification

This device complies with part 15 of the U. S. FCC Rules and Regulations and with is subject to

the following two conditions: (1) This device may not cause harmful interference, and (2) This

device must accept any interference received, including interference that may cause undesired

operation. In Canada, users should be cautioned to take note that high power radars are

allocated as primary users (meaning they have priority) of 5250 – 5350 MHz and 5650 – 5850

MHz and these radars could cause interference and/or damage to license-exempt local area

networks (LELAN).

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to Part 15 of the U.S. FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment generates,

uses, and can radiate radio-frequency energy and, if not installed and used in accordance with

these instructions, may cause harmful interference to radio communications. If this equipment

does cause harmful interference to radio or television reception, which can be determined by

turning the equipment on and off, the user is encouraged to correct the interference by one or

more of the following measures:

Increase the separation between the affected equipment and the unit;

Connect the affected equipment to a power outlet on a different circuit from that which the

receiver is connected to;

Consult the dealer and/or experienced radio/TV technician for help.

WARNING (Part 15, Section 15.21)

Changes or modifications not expressly approved by Arcwave, Inc. could void the user's

authority to operate the equipment.

FCC IDs Numbers are listed below:

FCC Identifier: PLRAX1255

FCC Identifier: PLRAX3155

ARCXTEND USER MANUAL – R1.4, ISSUE 4

RF Exposure

CAUTION: To ensure compliance with FCC RF exposure requirements, the antenna used for

this device must be installed to provide a separation distance of at least 20 cm from all persons

and must not be located or operated in conjunction with any other antenna or radio transmitter.

Arcwave and the Stylized Arcwave Logo, ARCXtend, ARCSmart, and PureBurst are trademarks

of Arcwave, Inc. All other product or service names are the property of their respective owners.

http://www.arcwaveinc.com

ARCXTEND USER MANUAL – R1.4, ISSUE 4

TABLE OF CONTENTS

INTRODUCTION 1

About this Document 1

Purpose 1

Audience 1

Prerequisites 1

Feedback 1

PRODUCT DESCRIPTION 2

Overview 2

System Configuration 2

Cable and Wireless Network Interfaces 3

Frequency Mapping 3

Signal Levels 3

Element Management 4

Applications 4

ARCXtend Wireless Drop 4

Wireless Feeder 5

Wireless Overlay and Upstream 5

Equipment Description 6

ARCXtend Network Hub 6

Hub Interfaces 6

Hub Configurations 7

Hub Mounting Kits 8

ARCXtend CPE 9

CPE Configuration and Accessories 10

Downstream Signal Attenuators 11

ARCSmartTM 2.0 Intelligent Network Management 11

DOCSIS 2.0 Compliant ECM 11

Watchdog Timer 11

SNMP-compliant Arcwave Enterprise MIB 11

HTTP-based user interface 12

ARCSmart firmware upgrade 12

Advanced Network Management Features 13

Plug-n-Play 13

Downstream frequency agility 13

Settable Hub Transmit Power 13

PureBurst Ingress Noise Suppression 13

PRE-DEPLOYMENT PLANNING 15

Hub Site Selection 15

Line of Site 15

Range 15

Equipment Location 16

Checking for Interference 17

CPE Site Selection 17

Height and Location 17

Checking for Interference 18

Channel Plan 19

Downstream Configuration 19

Downstream Block Diagram 19

Upstream Configuration 20

Upstream Block Diagram 20

ARCXtend Multiple Hub Configurations 21

IP Network Preparation 21

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Hub’s Default IP Address 21

Cable Network IP Address 21

ECM Configuration File 22

TCP/IP Port Filtering 22

Hub Electrical Interface 22

AC Powering and Surge Protection 22

DC Powering 23

RF Signal Power Level and Quality 23

CPE Electrical Interface 23

AC Powering and Surge Protection 23

Lightning Protection 23

INSTALLATION AND COMMISSIONING 24

Prerequisites 24

Link Budget 24

Personnel 24

Equipment and Materials 24

Equipment Ordering and Staging 25

Hub installation & commissioning 26

Setup the Hub Power and RF Connection 26

Secure the Hub to the Strand 26

(Optional) Secure the Hub to the Mast 27

Establish a Local Connection to the Hub 27

Verify the Embedded Cable Modem has achieved operational maintenance state. 28

Set up and verify the Hub’s cable plant interface 28

Set up and verify the Hub’s wireless interface 28

Set the Hub Management Mode 29

CPE installation 29

Affix the CPE mounting mast 29

Install the Coaxial Cable and Ground Connection 30

Install the power adaptor and DC inserter 32

CPE Alignment 32

Connect the signal strength meter 32

Verify CPE output signal at input to cable modem 33

Cable Modem Installation 34

If the cable modem registers with the network 34

If the cable modem doesn’t register with the network 35

Link Verification 37

Downstream path measurements 37

Upstream path measurements 37

USER INTERFACE 39

Accessing the Interface 39

Cable Status Page 39

System Info Page 41

General Information 41

Cable Modem IP Information 42

Attached Device 42

Signal Page 43

Arcwave MIB 43

Upstream Signal 44

DOCSIS 1.0 Class of Service Parameters 44

Event Log Page 44

System Event Log 45

Maintenance 47

Arcwave MIB page 48

Arcwave MIB Maintenance 48

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Firmware Download Information 51

Arcwave MIB Real Time Monitor Information 51

ACCESSORIES 53

ARCXtend Accessories 53

SPECIFICATIONS 54

AX1255 Network Hub 54

AX3155 Customer Premise Antenna / Transceiver (CPE) 55

Environment Specifications 5756

CUSTOMER SUPPORT 5857

Service Policy 5857

Services 5857

Standard Service Agreements 5958

Technical Services 5958

Technical Assistance 5958

Return of Material Authorization (RMA) Initiation and Tracking 5958

Onsite Support 5958

Emergency Onsite Support 6058

Software / Firmware Services 6059

Updates 6059

Upgrades 6059

Hardware Services 6059

Warranty Repair and Return 6059

Out of Warranty Repair and Return 6160

Spares 6160

Training Services 6160

Summary of Services 6160

ARCWAVE ENTERPRISE MIB 6463

Arcwave MIB Structure 6463

Arcwave MIB Element Definitions 6564

Arcwave Alarm Descriptions 7069

Arcwave Traps 7170

Sample Trap Format 7170

arcwaveEIAInputchannel VALUES 7372

CABLE MODEM INITIALIZATION 7473

ARCXTEND USER MANUAL – R1.4, ISSUE 4

FIGURES

Figure 2-1: ARCXtend Solution Architecture.................................................................................2

Figure 2-2: ARCXtend Solution Elements.....................................................................................3

Figure 2-3: Wireless Drop.............................................................................................................4

Figure 2-4: Wireless Feeder.........................................................................................................5

Figure 2-5 AX1255-SM (on left) and AX1255-VM Connectors (on right).......................................6

Figure 2-6: CPE RF Connector ..................................................................................................10

Figure 3-1: Fresnel Zone Clearance Requirement......................................................................15

Figure 3-2: CPE Site Survey Setup ............................................................................................18

Figure 3-3: ARCXtend Downstream Block Diagram ..................................................................19

Figure 3-4: ARCXtend Upstream Block Diagram.......................................................................20

Figure 4-1: Hub Installation Diagram..........................................................................................26

Figure 4-2: Mast Mount Kit Bracket Offset..................................................................................27

Figure 4-3: CPE Mounting Diagram...........................................................................................30

Figure 4-4: CPE Wiring Diagram ...............................................................................................30

Figure 4-5: Grounding device at subscriber premises.................................................................31

Figure 4-6: Power Inserter and AC/DC adaptor..........................................................................32

Figure 4-7: AR100 Signal Strength Meter (SSM)........................................................................33

Figure 5-1: Hub login screen ......................................................................................................39

Figure 5-2: Cable Status page....................................................................................................39

Figure 5-3: System Info page .....................................................................................................41

Figure 5-4: Signal Page..............................................................................................................43

Figure 5-6: Maintenance Page ...................................................................................................47

Figure 6-1: AR100 Signal Strength Meter...................................................................................53

ARCXTEND USER MANUAL – R1.4, ISSUE 4

TABLES

Table 2-1: Table for 10/100 Mbits Ethernet wiring and Power over Ethernet ................................7

Table 2-2: Hub Configurations......................................................................................................7

Table 2-3 Hub Mounting Options..................................................................................................9

Table 2-4: CPE Models ..............................................................................................................10

Table 2-5 SNMP Community String (Private), Read-Write Access .............................................12

Table 2-6 SNMP Community String (Public), Read-Write Access...............................................12

Table 3-1: AX1255-SM-90 Strand Mounted Network Hub (18 ft off the ground) .........................16

Table 3-2: AX1255-SM-25 Strand Mounted Network Hub (18 ft off the ground) .........................16

Table 3-3: AX1255-VM-90 Vertical Mounted Network Hub (100 ft off the ground)......................16

Table 3-4: Downstream Hub to CPE Channel Mapping..............................................................18

Table 4-1: Installation Equipment & Materials.............................................................................25

Table 4-2: DS received power level troubleshooting...................................................................34

Table 4-3: US transmit power level troubleshooting....................................................................35

Table 4-4: Cable modem registration .........................................................................................36

Table 4-5: Downstream path measurements..............................................................................37

Table 4-6: Upstream Path Measurements..................................................................................38

Table 5-1: ARCSmart Event Messages......................................................................................47

Table 5-2: Default Upstream Band Setting .................................................................................52

Table 7-1: AX1255 Specifications...............................................................................................55

Table 7-2: AX3155 Specifications...............................................................................................56

Table 7-3 Environmental Specifications..................................................................................5857

Table 8-1: Arcwave Service Offering Matrix ...............................................................................63

Table A-1 Arcwave MIB Definitions and OID ..............................................................................69

Table A-2 Arcwave Alarm Definitions .........................................................................................70

Table A-3 Arcwave Traps...........................................................................................................71

Table A-4 arcwaveEIAInputchannel Values................................................................................73

Table B-1 Cable Modem Initialization Steps...............................................................................75

ARCXTEND USER MANUAL – R1.4, ISSUE 4

INTRODUCTION

About this Document

Purpose

Proper installation and verification are critical elements to achieving optimal wireless performance.

This document provides cable plant installation professionals with information needed for

successfully deploying and maintaining Arcwave’s ARCXtend Wireless Plant Extension Solution.

Action items in this document preceded with by the )symbol.

Audience

This document is designed to be used by cable plant installation professionals. It can be performed

by one person with the proper training, wireless link planning, and tools. It is recommended,

however, that two people be present during the alignment process between the ARCXtend Network

Hub (Hub) and ARCXtend CPE (CPE): one person located at the Hub and the other at the CPE.

Prerequisites

Professionals using this process should be trained and familiar with installation and troubleshooting

of cable drops, cable modems, and ARCXtend.

Feedback

We welcome your feedback on Arcwave documentation. This includes feedback on structure,

content, accuracy, or completeness of our documents, and any other comments have. Please send

your comments to marketing@arcwaveinc.com.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

PRODUCT DESCRIPTION

Overview

The ARCXtend solution is a wireless point-to-multipoint plant extension solution supporting the

wireless transmission of digitally modulated RF signals between a cable system operator’s coaxial

cable plant and one or more customer sites. The solution consists of a Strand or Vertically Mounted

Network Hub (Hub) and one or more Customer Premise Equipments (CPE). The Hub connects

directly to the coaxial portion of cable plant using a standard power passing, passive tap or coupler

and is line powered over coax using 60-90 VAC. The CPE is installed at the customer site,

connects to a standard cable modem, and is powered locally using an AC power pack.

Coax Line - Two Way

Downstream to other Nodes

Power

Passing

Tap

Wireless Upstream

5250 - 5350 MHz

(14 channels)

ARCXtend

AX1255-SM

Network Hub

Wireless Downstream

5725 - 5850 MHz

(20 channels)

Off-Air

TV Stations

Satellite-Fed

Services

Cable Modem

System (CMTS)

DOCSIS

Downstream 90

to 860 MHz

DOCSIS

Upstream 5 to

to 45 MHz

Cable Modem

ARCXtend

AX3155 CPE

Splitter Coax

DS 425 to 550 MHZ US 5 to 45 MHz

Coax Line - Two Way

Downstream to other Nodes

Power

Passing

Tap

Wireless Upstream

5250 - 5350 MHz

(14 channels)

ARCXtend

AX1255-SM

Network Hub

Wireless Downstream

5725 - 5850 MHz

(20 channels)

Off-Air

TV Stations

Satellite-Fed

Services

Cable Modem

System (CMTS)

DOCSIS

Downstream 90

to 860 MHz

DOCSIS

Upstream 5 to

to 45 MHz

Cable Modem

ARCXtend

AX3155 CPE

Splitter Coax

DS 425 to 550 MHZ US 5 to 45 MHz

Figure 2-1: ARCXtend Solution Architecture

System Configuration

Figure 2-2 details the elements of the ARCXtend solution provided by Arcwave (shaded) and

provided by the cable operator:

ARCXTEND USER MANUAL – R1.4, ISSUE 4

RJ-45

F Type-2

F Type-1

CPE

Mounting

Kit

Cable Plant

60-90VAC and

DOCSIS Signal

AC Power Pack

DC Inserter LP Attenuator

Hub Mounting

Kit

Hub

POE

-20 dB Monitor

Port CPE Cable Modem

Provided by

Arcwave

RJ-45

F Type-2

F Type-1

CPE

Mounting

Kit

Cable Plant

60-90VAC and

DOCSIS Signal

AC Power Pack

DC Inserter LP Attenuator

Hub Mounting

Kit

Hub

POE

-20 dB Monitor

Port CPE Cable Modem

Provided by

Arcwave

Figure 2-2: ARCXtend Solution Elements

Cable and Wireless Network Interfaces

Frequency Mapping

The Hub receives a digitally modulated RF signal in the range between 90 and 860 MHZ to and

upconverts it to a selected wireless carrier frequency in the 5,725 to 5,850 MHz license-free band.

The channel can be 64 QAM or 256 QAM and up to 6 MHz wide.

The CPE receives the wireless signal and downconverts it to an RF channel in the range 425 to 550

MHz (the specific value is wireless carrier frequency minus 5300 MHz) which is provided to a Cable

Modem.

The CPE receives a digitally modulated RF signal in the range between 5 to 42 MHz and

upconverts it to a pair of fixed frequencies (one high computed as 5,300 MHz plus the RF signal

frequency, one low computed as 5,300 minus the RF signal frequency) in the range 5,250 to 5,350

MHz.

The Hub receives the wireless signal and downconverts it to the appropriate RF channel in the

range 5 to 42 MHz.

Signal Levels

The Hub includes Automatic Gain Control (AGC) on the RF input and can accept an RF input signal

of -5 to +25 dBmV while providing optimum wireless transmit power. The hub wireless transmitter

power, determined by the Downstream Path Optimization setting, can be set for on of three

modes: High (+19 dBm), Medium (+13 dBm), or Low (+3 dBm).

Note: The “High” power setting is for use with the AX1255-SM-90 and AX1255-VM-90 Network

Hubs. Use of the “High” power setting with the AX1255-SM-25 cancels the FCC certification and

voids the user’s authority to operate the unit in the 5.8 GHz band.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

The upstream output power out of the Hub into the cable plant is controlled by the Upstream

Attenuation parameter. This parameter is automatically set by the Hub based on the transmit

power setting of the Embedded Cable Modem (ECM) contained in the Hub.

The gain of the CPE is fixed in both the upstream and downstream direction. The transmit power of

the CPE directed towards the Hub will vary based on the input RF signal received from the cable

modem. The CPE can accept an input RF signal between 20 and +58 dBmV from a cable modem.

The downstream output power out of the CPE directed towards the cable modem will vary based on

the distance between the Hub and the CPE. It is typically in the range of +10 to +30 dBmV.

Arcwave provides specially designed low pass attenuators to reduce the downstream power level to

within the – 15 dBmV and +15 dBmV operating range of a cable modem. Note that for 256 QAM

operation that the downstream power level into the cable modem must be at least -6 dBmV.

Element Management

Each Hub contains Arcwave’s ARCSmart intelligent network management which combines an

embedded DOCSIS 2.0 compliant cable modem, SNMP-compliant Arcwave Enterprise MIB

(management information base) and a processing engine with upgradeable software to support low

cost configuration monitoring, and troubleshooting of a Hub.

Management of the CPE can be most cost effectively achieved using the capabilities built into the

subscriber cable modem. The CPE has no settable parameters so management is not required.

Applications

ARCXtend Wireless Drop

Figure 2-3: Wireless Drop

ARCXtend can be deployed as a wireless drop connecting customers located across a parking lot,

highway, or river or in areas with zoning restrictions to your plant. An AX1455-SM strand mount hub

mounts directly on your plant:

ARCXTEND USER MANUAL – R1.4, ISSUE 4

• The AX1255-SM-90 hub includes a 90° beamwidth antenna with a range up to 1 mile at 64

QAM and ¼ mile at 256 QAM;

• The AX1255-SM-25 includes a 20° beamwidth antenna with a range of 2 miles at 64 QAM

and 1 mile at 256 QAM.

Wireless Feeder

Figure 2-4: Wireless Feeder

ARCXtend can be deployed as a wireless feeder solution connecting hundreds of customers. An

AX1255-VM vertical mount hub mounts on a utility pole, tower, or building providing the extended

range coverage required for retail districts, office parks, or campuses.

• The AX1255-VM-90 vertical mount hub includes a 90° beamwidth antenna with a range of 2

mile at 64 QAM and ½ mile at 256 QAM.

Wireless Overlay and Upstream

The ARCXtend Wireless overlay solution delivers additional DOCSIS capacity without costly

network upgrades or deployments. It is an ideal solution for providing DOCSIS-based services to

isolated communities or out-of-franchise markets. A typical ARCXtend cell site, mounted on 100

foot tower, can cover over 100 square miles and could provide commercial-grade high speed data

service for up to 1,600 customers.

The ARCXtend Wireless upstream solution provides a quick and cost effective means for upgrading

older one-way plants to deliver 2-way DOCSIS service. With the ARCXtend wireless upstream

solution, two-way service can be up and running in weeks rather than months at a fraction of the

cost of upgrading the entire plant.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Equipment Description

ARCXtend Network Hub

The Hub is a self-contained weather-protected unit providing a 2-way wireless connection between

a CMTS or cable plant and a cable modem. The Network Hub includes an integrated transceiver,

antenna, embedded cable modem and controller supporting high reliability point-to-multipoint

wireless coverage, SNMP, HTTP-based web user interface, ARCSmart Intelligent network

management, and PureBurst upstream ingress noise suppression technology.

• ARCSmart is a fully programmable and field upgradeable engine that enables a Network

Hub to dynamically optimize itself to changing DOCSIS or Wireless Network conditions.

• PureBurst enables Cable MSOs to send an upstream DOCSIS channel over wireless links

with zero impact to their cable network.

The Hub is frequency agile from 90 to 860 MHz and can be connected directly to a cable plant

using a common tap or coupler. It can be mounted on the cable strand or on a tower, building or

other nearby structure and can be line or locally powered.

Hub Interfaces

The Hub has the following interfaces and indicators as shown in Figure 2-5 and described below:

Figure 2-5 AX1255-SM (on left) and AX1255-VM Connectors (on right)

RF Input Port: AC surge protected and SCTE compliant female F-type connector for RF and power

connection to the cable network.

-20 dB Monitor Port: SCTE compliant female F-type connector for monitoring the downstream RF

signal.

Weather-proof Ethernet Port: RJ-45 connector for local connection of a PC and for VDC powering

over Ethernet (PoE).

Pin Function US modern T-568A

1 Ethernet Tx+ green-white

LED RJ-45

RF Input

Monitor Port

Ground

Stud

RJ-45

RF Input

Monitor Port

ARCXTEND USER MANUAL – R1.4, ISSUE 4

2 Ethernet Tx- green

3 Ethernet Rx+ orange-white

4 PoE - lower voltage (-) blue

5 PoE - lower voltage (-) blue -white

6 Ethernet Rx- orange

7 PoE - higher voltage (+) brown-white

8 PoE - higher voltage (+) brown

Table 2-1: Table for 10/100 Mbits Ethernet wiring and Power over Ethernet

Power-on, LED: Indicates that the Hub is receiving VAC or VDC power. (AX1255-SM Only)

Hub Configurations

The Hub model number format is AX1UV5-WW-XX where:

• “U” indicates frequency band(s) of operation where “2” is for 5.8 GHz downstream and 5.3

GHz upstream operation and “4” is for 5.8 GHz only.

• “V” is “0”, for Upstream Only, or “5”, for Bidirectional

• “WW” indicates mounting orientation, VM, for Vertical Mount, or SM, for Strand Mount).

• “XX” indicates antenna transmit beamwidth (“90”, for 90-Degree Horizontal Beamwidth and

“25”, for 20-Degree Horizontal Beamwidth).

All Hubs support both 60 to 90 VAC powering over coax and 24 VDC powering over Ethernet

(POE).

The standard network hub configurations are:

Downstream

Range

Model

number

Downstream

Frequency

Band

Upstream

Frequency

Band

Mounting

Orientation

Transmit

Antenna

Beamwidth 64

QAM

256

QAM

Bidirectional Systems

AX1255-

SM-90

5725 MHz –

5850 MHz

5250 MHz

- 5350

MHz

Horizontal 90 Degrees 1 Mile ¼ Mile

AX1255-

SM-25

5725 MHz –

5850 MHz

5250 MHz

- 5350

MHz

Horizontal 20 Degrees 2 Miles 1 Mile

AX1255-

VM-90

5725 MHz –

5850 MHz

5250 MHz

- 5350

MHz

Vertical 90 Degrees 2 Miles ½ Mile

Upstream Only, No remote monitoring. If remote monitoring is desired

use a standard AX1255-VM-90.

QPSK 16

QAM

64 QAM

AX1205-

VM-90

5725 MHz –

5850 MHz

5250 MHz

- 5350

MHz

Vertical 90 Degrees

8 Miles 4 Miles 2 Miles

Table 2-2: Hub Configurations

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Hub Mounting Kits

Works with Model Description Image

Standard ARCXtend Strand

Mount Kit

Used to mount an

AX1255-SM to a

standard strand cable

Includes integrated

mounting bracket

providing 360° vertical

and +/- 30° horizontal

adjustment for rapid

and flexible antenna

alignment.

AX1255-SM

AX1255-

SMA

ARCXtend Strand

Mount Adaptor Kit,

Network Hub

Used to mount an

AX1255-SM in the

horizontal position on a

1-1/4 to 2-3/8 O.D. pipe

mount

ARCXTEND USER MANUAL – R1.4, ISSUE 4

AX1255-

MMK

ARCXtend Mast Mount

Kit, Network Hub

Included with all

AX1255-VM Hubs

Enables the Hub to

mount to a mounting

pipe with an outside

diameter from 1 1/4“ to

2 3/8”

AX1255-VM

AX1255-

PMK

ARCXtend Pole Mount

Kit, Network Hub

Includes the AX1255-

MMK

Enables the Hub to be

mounted to a standard

diameter wooden utility

pole using a chain or

four bolts

The Hub attaches to a

pile welded to the

bracket using the mast

mount kit

Table 2-3 Hub Mounting Options

ARCXtend CPE

The CPE is small footprint weatherproof radome, as show in Figure 8 that can be easily mounted

on a rooftop or side of a building to provide connectivity to the wireless network. It contains an

integrated transceiver and a narrow-beam antenna that can be easily aligned to receive the

Wireless DOCSIS signal from a Network Hub. The CPE is roughly one foot square and supports

low cost installation using the same hardware and skills as a small satellite dish.

The CPE has a single, female-type F connector for both VDC power and RF signal. It is located on

the back of the unit as show in Figure 2-6.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Figure 2-6: CPE RF Connector

CPE Configuration and Accessories

The CPE model number format is AX3U55-WW-XX where:

• “U” indicates frequency band(s) of operation where “2” is for 5.8 GHz downstream and 5.3

GHz upstream operation and “4” is for 5.8 GHz only.

• “WW” indicates mounting orientation, VM, for Vertical Mount, or SM, for Strand Mount).

• “XX” indicates antenna transmit beamwidth (“90”, for 90-Degree Horizontal Beamwidth).

All CPEs support 12 VDC powering over Coax.

The standard CPE models are:

Upstream Range

Model

number

Downstream

Frequency

Band

Upstream

Frequency

Band

Mounting

Orientation

Transmit

Antenna

Beamwidth QPSK 16

QAM

AX3155-

VM-90

5725 MHz –

5850 MHz

5250 MHz –

5350 MHz

Vertical 90 Degrees 8 Miles 4 Miles 2 Miles

Table 2-4: CPE Models

The standard CPE accessories are:

Power Packs and DC Inserters

• AX3155-PS-12: 120 VAC 60 Hz/12 VDC adaptor and DC Inserter

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Downstream Signal Attenuators

• AX3155-ECF-10: 10 dB Downstream Attenuator for attenuating the DS signal level without

affecting the US signal level

• AX3155-ECF-20: 20 dB Downstream Attenuator for attenuating the DS signal level without

affecting the US signal level.

ARCSmartTM 2.0 Intelligent Network Management

Arcwave’s ARCSmart intelligent network management combines an embedded DOCSIS 2.0

compliant cable modem, SNMP-compliant Arcwave Enterprise MIB (management information

base), and an upgradeable processing engine with upgradeable software to support low cost

configuration, monitoring, and troubleshooting of an ARCXtend Network Hub (Hub). Specific

capabilities include:

• DOCSIS 2.0-compliant embedded cable modem (ECM)

• SNMP-compliant Arcwave Enterprise MIB

• HTTP-based User Interface

• ARCSmart firmware upgrade

DOCSIS 2.0 Compliant ECM

Each Hub includes a hardened DOCSIS 2.0-compliant cable modem (ECM) supporting in-band

communication over standard DOCSIS channels with ARCSmart. For proper operation of

ARCSmart Advanced Network Features the ECM and all cable modems served by the Hub must be

on the same downstream and upstream DOCSIS channels at all times.

The ECM firmware can be upgrading using TFTP and normal cable modem firmware upgrade

procedures.

Watchdog Timer

This embedded cable modem also includes a system watchdog timer with a peripheral bus

interface. It provides a method for resetting the host, upon expiration of the timer value, to heal

system hangs due to software bugs, power spikes, and so on. The watchdog timer period and

prescale values are programmable and are protected by dual keyed-lock state machines. Disabling

of the watchdog timer is protected by both hardware tie-offs and a triple keyed-lock state machine.

Resetting (kicking) of the watchdog timer is provided through a dual keyed-lock state machine.

SNMP-compliant Arcwave Enterprise MIB

The Arcwave Enterprise MIB is compliant with SNMP version 1, 2, and 3 and fully accessible and

manageable using third-party SNMP-based network management tools. It contains all Hub

management, performance, and configuration data. Appendix A of this manual contains a

description and element definitions for the Arcwave Enterprise MIB as implemented in the Hub. The

compilable “arcwave.mib” file is included on each product documentation CD and can also be

downloaded from the Arcwave website.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Setting the SNMP public and private strings

For the SNMP Community String (Private), Read-Write Access set the following MIB to the

indicated value as show in Table 2-5:

DOCSIS MIB Name Object ID Type Value

docsDevNmAccessStatus 1.3.6.1.3.69.1.2.1.7.1 Integer 4

docsDevNmAccessIp 1.3.6.1.3.69.1.2.1.2.1 IpAddress 255.255.25

5.255

(means any

NMS

station)

docsDevNmAccessIpMask 1.3.6.1.3.69.1.2.1.3.1 IpAddress 0.0.0.0

docsDevNmAccessCommunity 1.3.6.1.3.69.1.2.1.4.1 OctetString private (the

name you

want)

docsDevNmAccessControl 1.3.6.1.3.69.1.2.1.5.1 Integer 3

Table 2-5 SNMP Community String (Private), Read-Write Access

For the SNMP Community String (Public), Read-Write Access set the following MIB to the indicated

value as show in Table 2-6 Read-Only Access:

DOCSIS MIB Name Object ID Type Value

docsDevNmAccessStatus 1.3.6.1.3.69.1.2.1.7.1 Integer 4

docsDevNmAccessIp 1.3.6.1.3.69.1.2.1.2.1 IpAddress 255.255.25

5.255

(means any

NMS

station)

docsDevNmAccessIpMask 1.3.6.1.3.69.1.2.1.3.1 IpAddress 0.0.0.0

docsDevNmAccessCommunity 1.3.6.1.3.69.1.2.1.4.1 OctetString public (the

name you

want)

docsDevNmAccessControl 1.3.6.1.3.69.1.2.1.5.1 Integer 2

Table 2-6 SNMP Community String (Public), Read-Write Access

HTTP-based user interface

The Hub contains an HTTP-based web tool that can be used to interface to the unit.

ARCSmart firmware upgrade

ARCSmart provides the ability to upgrade its firmware using a TFTP (Trivial File Transfer Protocol)

protocol. This is accomplished using the Firmware Download Information table on the Arcwave MIB

Maintenance page:

ARCXTEND USER MANUAL – R1.4, ISSUE 4

TFTP server IP Address: Enter the TFTP (Trivial File Transfer Protocol) server’s IP address.

Firmware Upgrade Filename: Enter the file name of the ARCSmart controller firmware to be

downloaded to the Hub.

Start Upgrade: Click the “Apply” button to initiate the download. The download of the new

controller firmware will take one to two minutes. The download can be verified by refreshing the

page. The version number of the downloaded firmware should be displayed in the Firmware

Version Number box under in the Real Time Monitor Information table.

Advanced Network Management Features

Plug-n-Play

ARCSmart has the ability to automatically program and modify Hub settings with the same DOCSIS

downstream and upstream channel information being received by the ECM. To activate this feature,

set Auto Frequency Set to “ENABLE”. With this activate, whenever the ECM detects a change in

the downstream or upstream channel it will propagate this change to the appropriate Hub settings.

This includes information sent in a Station Maintenance Message (SMM) Notification-US Frequency

Change.

Downstream frequency agility

ARCSmart has the ability to automatically “tune” to a downstream channel on the cable network. To

activate this feature, set Cable Interface Control to “On”.

Settable Hub Transmit Power

The wireless transmitter output of the Hub, determined by the Select Downstream Power setting,

can be set for on of three modes:

• High or 19 dBm

• Medium or 13 dBm

• Low or 3 dBm

Note: The “High” power setting is for use with the AX1255-SM-90 and AX1255-VM-90 Network

Hubs. Use of the “High” power setting with the AX1255-SM-25 cancels the FCC certification and

voids the operator’s authority to operate the unit in the 5.8 GHz band.

PureBurst Ingress Noise Suppression

PureBurst effectively functions as a door. When there is no wireless upstream signal being received

the Hub, this door is closed. When closed, the Hub does not output any noise onto the cable plant.

Therefore, when other subscribers are transmitting in the upstream to the CMTS, the wireless hub

does not contribute to the cable plant’s noise floor.

When a cable modem utilizing the wireless upstream link is transmitting the door is open. During

this time the Hub allows the upstream signal plus Hub related thermal noise to pass onto the cable

plant. Closing of the door results in the cable plant’s U/S noise floor returning to its previous level.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

This ensures that the only upstream signal affected by the hub’s internal upstream noise is the

wireless burst signal as scheduled by the CMTS. This allows many wireless hubs employing

PureBurst to be connected to the same cable plant without raising the upstream plant noise floor

and affecting other users sharing the same cable plant.

This feature is enabled by default.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

PRE-DEPLOYMENT PLANNING

Hub Site Selection

A suitable location for the Hub is one that provides an acceptable line of sight (LOS) wireless link to

the CPE(s) located at the customer site(s). An acceptable wireless link is one within the working

range of Hub and with line of sight to the customer sites.

Line of Site

Line of sight is defined as a path between the Hub and CPE that is free of obstructions in the

Fresnel zone. Obstructions could be trees, buildings, street signs, etc. An accepted rule of thumb is

that LOS conditions exist when there are no physical obstructions within 60% of the Fresnel zone

(obstruction free zone). Obstructions can be trees, buildings, street signs, etc. The Fresnel Zone

clearance is determined by the distance between the Hub and CPE as shown in Figure 3-1.

Figure 3-1: Fresnel Zone Clearance Requirement

Range

The maximum range, assuming a clear Fresnel zone, is determined by the Hub type, downstream

modulation, and the mounting height of the Hub. The range, arc, and coverage area of all three

models of Hubs are given in Tables 3-1, 3-2, and 3-3.

Modulation Range Arc Area

Downstream Wireless Link

64 QAM (DS)

256 QAM (DS)

1 mile

0.25 miles

1.6 miles

0.4 miles

0.8 sq-miles

0.05 sq-miles

Upstream Wireless Link

CPE

Network

Hub

Fresnel Zone must

be clear of

obst ruct ions

obstructions

12 feet9 ft.6 ft.4 ft.3 ft.

2 miles1 mile½ mile1,000 ft. 500 ft.

CPE

Network

Hub

Fresnel Zone must

be clear of

obst ruct ions

obstructions

12 feet9 ft.6 ft.4 ft.3 ft.

2 miles1 mile½ mile1,000 ft. 500 ft.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

QPSK (US)

16 QAM (US)

64 QAM (US)

3 miles

2 miles

1 mile

4.2 miles

3.1 miles

1.6 miles

7.0 sq-miles

3.1 sq-miles

0.8 sq-miles

Table 3-1: AX1255-SM-90 Strand Mounted Network Hub (18 ft off the ground)

Modulation Range Arc Area

Downstream Wireless Link

64 QAM (DS)

256 QAM (DS)

2 miles

1 mile

3.1 miles

1.6 miles

3.1 sq-miles

0.8 sq-miles

Upstream Wireless Link

QPSK (US)

16 QAM (US)

64 QAM (US)

6 miles

3 miles

2 miles

9.4 miles

4.7 miles

3.1 miles

28.0 sq-miles

7.0 sq-miles

3.1 sq-miles

Table 3-2: AX1255-SM-25 Strand Mounted Network Hub (18 ft off the ground)

Modulation Range Arc Area

Downstream Wireless Link

64 QAM (DS)

256 QAM (DS)

2 miles

0.5 miles

3.1 miles

0.8 miles

3.1 sq-miles

0.20 sq-miles

Upstream Wireless Link

QPSK (US)

16 QAM (US)

64 QAM (US)

6 miles

3 miles

2 mile

9.4 miles

4.7 miles

3.1 miles

28.0 sq-miles

7.0 sq-miles

3.1 sq-miles

Table 3-3: AX1255-VM-90 Vertical Mounted Network Hub (100 ft off the ground)

Equipment Location

A simple method for choosing the location of the Hub uses a map1 of the area to be covered. Draw

two circles taking the customer site(s) to be covered as its center and the maximum range of each

Hub type as the circle’s radius. Try first to find locations on your plant that fall within the range of the

AX1255-SM-90 and the AX1255-SM-25 and then the AX1255-VM-90.

The AX1255-SM-90 provides maximum coverage area at the expense of limited range, whereas the

AX1255-SM-25 provides maximum range at the expense of limited coverage area. The AX1255-

1 A network map with street and building information is ideal for this activity.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

VM-90 provides maximum coverage and maximum range but requires access to a building or tower

for mounting. Locations on building or towers are availably but generally involve a lease agreement

with the owner and the site must be within a thousand feet of the cable plant.

Once you have identified possible sites for the Hub, drive out to these locations and determine

which, if any of them, provide a line of site path to the customer site(s) to be served. The simplest

way to do this is, using a spotting scope, find the other end of the path and determine if it meets the

Fresnel zone criteria. A more accurate approach would be to use a range finder to measure the

height of the highest obstruction in the path and GPS to measure the distance. If you find that none

of the Hub sites will work then you need to go back to the map and try and locate alternative

locations.

Checking for Interference

ARCXtend maps the upstream DOCSIS channel to a high frequency and a low frequency pair in the

5.250 to 5.350 GHz band. This mapping is fixed and based solely on the frequency of the upstream

DOCSIS channel. Determine the corresponding wireless channels the upstream frequency used in

your cable plant. Check for interference at both frequencies and note which of these channels are

free of interference, as it will be used for the deployment. If you can’t find free spectrum for the

downstream and upstream signals then you will need to find another location.

Handheld wireless LAN spectrum analyzers covering the 5.250 to 5.350 range and capable of

identifying signals regardless of origin, like the BANTAM INSTRUMENTS Model 425A, are ideal for

locating potential interference.

CPE Site Selection

Height and Location

A suitable location for the CPE is one that provides an acceptable line of sight (LOS) wireless link,

as previously defined, to the Hub. This requires the CPE to be placed high enough on the rooftop to

provide the required Fresnel zone clearance. Using the setup shown in Figure 3-2 monitoring, the

optimal height and location can be determined by monitoring the Signal Level reading on the AR100

Signal Strength Meter. Monitoring the Signal Level meter on the AR100, the optimal CPE height

and location will be indicated by maximum signal level readings.

The CPE are that it should be located to the edge of the building closet to the Hub. If the CPE were

to be mounted towards the middle or back of the building, the incoming wireless signal can be

reflected by the rooftop impairing the performance of the link. It is also advisable to select a location

near to the rooftop grounding system to have a short, low resistance path and within 300 feet of an

AC power source. The routing path for the coaxial cable that connects the CPE to the cable modem

is also worked following your normal guidelines.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Figure 3-2: CPE Site Survey Setup

Checking for Interference

ARCXtend supports the assignment of any downstream RF channel to one of the twenty available

downstream wireless channels. The available carriers and the corresponding CPE downstream RF

channel are given in Table 3-4. By examining the CPE downstream frequency spectrum we can

determine which of the wireless channels is free of interference.

* Pending FCC approval.

Table 3-4: Downstream Hub to CPE Channel Mapping

Hub

Downstream

Wireless

Channel

CPE

Downstream RF

Channel

Hub

Downstream

Wireless Carrier

Channel

CPE

Downstream RF

Channel

Hub

Downstream

Wireless Carrier

Channel

CPE

Downstream RF

Channel

5729 MHz 429 MHz 5771 MHz 471 MHz 5813 MHz 513 MHz

5735 435 5777 477 5819 * 519

5741 441 5783 483 5825 * 525

5747 447 5789 489 5831 * 531

5753 453 5795 495 5837 * 537

5759 459 5801 501 5843 * 543

5765 465 5807 507

Telescoping

Mast

CPE

LNB

CPE Wall

Mount

Adaptor

AR100

Signal

Strength

Meter

Power

Inserter

Spectrum

Analyzer

RF Power

To AM

RF TO

Power in

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Tap

CATV Plant

ARCXtend

Subscriber

Transceiver

Cable Modem

ARCXtend

Hub

Transceiver

CATV Channel

EIA Channels 7 - 134

90 MHz - 855 MHz

ARCXtend Air Frequency

5729 MHz - 5843 MHz

CM Receive Frequency

429 MHz - 543 MHz

LAN or USB

Channel Plan

Downstream Configuration

The ARCXtend downstream block diagram is illustrated in Figure 3-3. Note that the North

American DOCSIS 64 QAM or 256 QAM downstream signal is 5.25 MHz wide and is transported

within a standard 6 MHz wide channel throughout the CATV plant and the ARCXtend system. All

downstream frequencies indicated are the center frequency of the 6 MHz wide channel.

Figure 3-3: ARCXtend Downstream Block Diagram

Downstream Block Diagram

The DOCSIS cable modem downstream channel on the CATV plant is already established in the

working cable modem system. At the time of installation the ARCXtend Hub is automatically

configured to the CATV downstream channel. Any EIA channel between 7 and 134, inclusive, may

be utilized. Table A-3 in Appendix A provides a list of these channels and their corresponding

center frequencies.

The downstream output of the ARCXtend Hub is the over-the-air frequency in the range of 5729

MHz through 5843 MHz. Any frequency in this range can be chosen from Table 3-4, which

determines the corresponding cable modem receive frequency. Note from the table that the cable

modem downstream receive frequency is always [air frequency – 5300 MHz]. The ARCXtend

standard downstream air frequencies were chosen to ensure that the corresponding cable modem

downstream receive frequencies are centered on standard EIA CATV channels to enable the

fastest possible cable modem downstream scan.

In summary, any CATV downstream channel may be employed as input into the Hub, and any

specified air frequency between 5729 and 5843 MHz may be chosen, but the cable modem receive

frequency (channel) is determined from the air frequency only. Note that the downstream CATV

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Tap

CATV Plant

ARCXtend

Subscriber

Transceiver

Cable Modem

ARCXtend

Hub

Transceiver

CATV Upstream

Frequency

5 MHz - 42 MHz

ARCXtend Air Frequency

5258 MHz - 5342 MHz

CM Transmit

Frequency

5 MHz - 42 MHz

LAN or USB

frequency may be different than the cable modem receive frequency. This is generally not a

concern as most DOCSIS systems on which there is only one DOCSIS downstream channel on the

cable network do not specify the CM receive frequency in the CM configuration file, rather they let

the CM find the downstream on its own.

Upstream Configuration

The ARCXtend upstream block diagram is illustrated in Figure 4-2. Note that the North American

DOCSIS (Version 1.0 and 1.1) QPSK or QAM upstream signal is up to 3.2 MHz wide. DOCSIS 2.0

upstream signals can be as much as 6.4 MHz wide. All frequencies specified in this section are the

center frequency of the particular signal.

Figure 3-4: ARCXtend Upstream Block Diagram

Upstream Block Diagram

The cable modem (CM) is commanded by the downstream signal to transmit at a specific upstream

frequency between 5 MHz and 42 MHz. Note that any upstream frequency may be selected.

Refer to Figure 3-4 from right to left. The ARCXtend Subscriber Transceiver (CPE) up converts the

CM upstream signal to the 5300 MHz band and transmits two copies of the signal: 5300 MHz-[CM

transmit frequency] and 5300 MHz+[CM transmit frequency].

For example, if the CM upstream transmits frequency is 22.5 MHz; the ARCXtend CPE will

simultaneously transmit the signal on two air frequencies: 5277.5 MHz and 5322.5 MHz.

In summary, the CM upstream transmit frequency determines the two upstream air frequencies

transmitted by the ARCXtend CPE. The ARCXtend Hub selects either the high or low air frequency

and passes the user data upstream to the CATV plant at the original CM transmit frequency.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

ARCXtend Multiple Hub Configurations

Downstream

If multiple ARCXtend Hubs are to be installed such that more than one Hub is visible (line of sight)

from any ARCXtend subscriber transceiver (CPE), additional measures must be taken. A receiver

will not operate properly if it “sees” signal on the same frequency from more than one transmitter

such that the two or more signals arrive at the receiver at levels within approximately 25 dB of each

other. (If the desired signal is greater than approximately 25 dB stronger than the undesired, the

receiver will function).

Since the ARCXtend downstream configuration can map the CATV plant downstream channel to

any of the specified air frequencies, the solution is to choose different downstream air frequencies

for each visible ARCXtend Hub.

Upstream

Similarly, if multiple ARCXtend Hubs are to be installed to cover a larger geographic area than can

be accommodated by the antenna pattern of one Hub, but in close enough proximity that more than

one Hub can “see” the upstream signal from a particular CPE operating at the same upstream air

frequency at levels within approximately 25 dB of each other, the combined signal on the upstream

will be unusable.

The solution is to utilize different upstream CM transmit frequencies, and therefore different

upstream air frequencies, in the different Hubs. This means that each CM transmit frequency will

be passed upstream into the CATV plant. Note that this will require the CATV plant and CMTS to

accommodate these separate upstream channels. Recall that DOCSIS supports multiple upstream

channels working with a single downstream. All CMs served by any given Hub must be provisioned

for the same upstream frequency.

IP Network Preparation

Hub’s Default IP Address

The ARCXtend Network Hub (Hub) utilizes an IP address in the cable network for remote

management and automatic of configuration of Hub parameters.

If an IP address is not provided for the Hub, it can be only accessed via the local Ethernet interface

and using the default IP address:

• IP address of 192.168.100.1

• Subnet mask 255.255.255.0

Cable Network IP Address

If remote management or plug-n-play installation is desired, the Hub must be assigned an IP

address by the cable network. This is accomplished by provisioning the MAC ID of the Hub’s

embedded cable modem (ECM) MAC ID into the networks OSS/NMS.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

DHCP Server Setup

The Hub’s ECM requires an IP address and its own unique configuration file. In order for the ECM

to be assigned an IP address and be loaded with the proper configuration file the following actions

are required:

Set up a DHCP pool on your server for the ARCXtend ECMs to ensure that the ECM is properly

configured and addressed.

ECM Configuration File

The ECM has its own DOCSIS standard format configuration file, ecm.cfg, which is pre-loaded at

the factory and loaded on the ECM. A copy is also included on the documentation CD and

downloadable from the customer support page of the www.arcwave.com web site. The

configuration file should be edited be prior to installation to confirm with cable network specific

settings.

The configuration file for the ARCXtend ECM contains the following information:

• Downstream channel parameters (optional)

• UCD which specifies the upstream channel parameters (optional)

• Authentication parameters (optional)

• Registration parameters (mandatory)

• ECM firmware upgrade file name (optional)

The Hub ECM and attached wireless subscriber cable modem must be assigned to the same

upstream frequency and must not be part of an upstream group supporting multiple upstream

channels.

TCP/IP Port Filtering

TCP/IP port filtering is the practice of selectively enabling or disabling Transmission Control

Protocol (TCP) ports and User Datagram Protocol (UDP) ports on computers or network devices.

The following ports must be open for SNMP, HTTP, and TFTP applications to be performed on the

Hub:

• Port 161/162 for SNMP

• Port 80 for HTTP

• Port 69 for TFTP

Hub Electrical Interface

The Hub is connected to the cable plant using a power-passing tap spliced in at the desired location

on the cable plant.

AC Powering and Surge Protection

In strand mount applications, the Hub is powered through the input RF port. The Hub is capable of

60 VAC or 90 VAC powering power. The internal power supply provides a regulated 24 VDC output

ARCXTEND USER MANUAL – R1.4, ISSUE 4

over an ac input between 45 Vrms and 125 Vrms with a line frequency from 50 Hz through 60 Hz. A

20-ampere fuse is furnished in the power supply module and provides over current protection for ac

power applied to the input. SCTE compliant surge protection is provided in the power supply.

Connections are made using standard pin-type connectors with a nominal center-conductor

diameter of 0.067 inches. The minimum length of the center-conductor pin is 1.5 inches and the

maximum length is 1.65 inches. Longer pins can extend past the center-conductor seizure

mechanism and degrade the match. Extremely long pins can result in a short circuit.

DC Powering

The Hub can also be powered through the weather-protected Ethernet port using Power-over-

Ethernet. The power level at the Ethernet Port should be between 18 and 26 VDC. DC power

should be applied to the CAT5 cable using the “Injector” provided by Arcwave.

Inset RJ-45 pin configuration

RF Signal Power Level and Quality

The Hub requires a downstream path RF power level at the input RF port of between -5 dBmV and

+25 dBmV. The modulation error ratio (MER) going at the input RF port should be within the

budgeted range for the wireless link. In general a minimum MER of 35 dB is required for 256 QAM

and 31 dB is required for 64 QAM downstream path modulations.

CPE Electrical Interface

The CPE is powered over and connects to the cable modem, using standard coaxial cable.

AC Powering and Surge Protection

The CPE is powered through the RF output port. The CPE is powered with 12 VDC. Arcwave

provides a 120 VAC CPE power pack and a power inserter approved for use with the CPE. The

CPE must typically be located within 100 feet of the power pack to insure adequate powering of the

CPE.

Lightning Protection

The CPE must be mounted at least 2 feet below the highest point at the site to minimize the

likelihood of lightning strikes. The location should be properly grounded for lightning protection to all

applicable national (National Electric Code, sections 820-33 and 820-40) and local codes.

To protect the customer equipment from surges on the coaxial cable that is connecting the CPE to

the cable modem, the installation of an SCTE compliant surge protector is required.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

INSTALLATION AND COMMISSIONING

Proper installation and verification are critical elements to achieving optimal wireless performance.

This section provides cable plant installation professionals with a step-by-step procedure and

troubleshooting guide for successfully deploying Arcwave’s ARCXtend Wireless Plant Extension

Solution.

Action items are preceded with by the )symbol.

Prerequisites

Professionals using this process should be trained and familiar with installation and troubleshooting

of cable drops, cable modems, and with the operation of ARCXtend.

Pre-deployment planning should be completed including the IP network preparation required for

initialization of the embedded cable modem.

Link Budget

Wireless link planning and RF link budgeting should be completed prior to attempting an ARCXtend

installation. The measured signal level values for the wireless link and cable network interfaces

should be recorded during the installation and commissioning process.

Personnel

This guide is designed to be used by cable plant installation professionals. It can be performed by

one person with the proper training, wireless link planning, and tools. It is recommended, however,

that two people be present during the alignment process between the hub and CPE: one person

located at the network hub and the other at the CPE.

Equipment and Materials

Equipment Source Use

AR100 Signal Strength

Meter

Arcwave CPE Alignment

Digital Cable TV

Installation Meter

Sunrise Telecom Hukk

CM500 or equivalent

Hub installation & link

commissioning

7/16” & ½” wrench Multiple Hub and CPE installation

Spotting Scope or

Binoculars

Multiple Hub site selection

Range Finder Multiple Hub site selection

GPS Receiver Multiple Hub site selection

Bucket Truck Multiple Hub Installation

Walkie Talkies or Cell

phones

Multiple Communicate between

Hub and CPE sites

Laptop Computer w/ Serial

& Ethernet Ports

Multiple Hub monitoring and

configuration

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Material Source Use

ARCXtend Network Hub

Arcwave

AX1255-SM-25, AX1255-

SM-90, AX1255-VM-90

Wirless interface to cable

network on plant side

ARCXtend CPE

Arcwave

AX3155-VM-12

Wirless interface to cable

network on customer side

ARCXtend CPE Power

Adaptor and DC Inserter

Arcwave

AX3155-PS-12

Powering CPE

ARCXtend Network Hub

Management Kit, M/N

Arcwave

AX1255-IFK-232

Hub Interface Cable Kit

10dB and 20dB low pass

attenuators

Arcwave

AX3155-ECF-10

AX3155-ECF-20

Attenuate CPE

downstream output power

level

Power Passing Tap Multiple Provides RF signal and

power for network hub

CPE Mounting Hardware Valmont, Patriot Antenna

Systems, Wade Antenna

Ltd.,

Mounting CPE at the

installation site

RG-6 coaxial cable and

male “F” type connectors

Multiple Connecting the network

hub to the power passing

tap

Connecting the CPE to the

cable modem

Ground device Multiple Grounding the CPE

installation

Surge Protector Array Solutions Model 310 Protects the cable modem

and susbcriber equipment

from damage due to a

lightning strike.

Table 4-1: Installation Equipment & Materials

Equipment Ordering and Staging

Once you have completed the wireless link planning process you are ready to order or pull from

inventory the necessary equipment. At this point you should verify you have all the equipment and

tools required to complete the installation.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Hub installation & commissioning

Setup the Hub Power and RF Connection

)Install a power passing tap at the desired hub location on the cable plant and verify that the AC

power level, the downstream RF signal power level, and the downstream modulation error rate

(MER) meets ARCXtend requirements as listed below:

1. Verify that the input power range is between 50 Vac and 110 Vac nominal.

2. Verify that the input the downstream RF signal level is between -5 dBmV and +25 dBmV.

3. Verify that the downstream modulation error ratio (MER) going into the hub is within the

budgeted range for this link. In general a minimum MER of approximately 35 dB is required

for 256 QAM operation and 31 dB is required for 64 QAM operation.

A B

Figure 4-1: Hub Installation Diagram

Secure the Hub to the Strand

)Using the antenna pattern decals located on the top and side of the hub, align the hub antenna

in the approximate direction of customer site(s). Install as show in Figure 4-1 per the steps

provided below using a 7/16” combination or socket wrench. It is recommended that the hub be

located on the strand as close as possible to the utility pole to minimize swaying in windy

conditions.

1. Attach the bracket to the messenger strand with the hanger bolts at A and B. Tighten the

hanger bolts lightly. If the existing cable bundle lashed below the messenger strand is

ARCXTEND USER MANUAL – R1.4, ISSUE 4

sufficiently thick to interfere with the top of the Hub cover, the two elevation adjustment bolts

D can be relocated to a pair of upper holes G on the back plate F.

2. Loosen horizontal adjustment bolt C and rotate the hub so that it is pointed at the center of

the area to be served by this hub. Tighten azimuth adjustment bolt C.

3. Loosen the two elevation adjustment bolts at D (one on each side of the mounting bracket)

and tip the Hub back plate F so that it is parallel to the azimuth adjustment bolt C. Tighten

the elevation adjustment bolts lightly.

4. Loosen the hanger bolts A and B and slide them in the slots E at the top of the mounting

bracket until the hub balances and the back plate F is perpendicular to the ground. Tighten

the hanger bolts A and B.

5. Loosen the two elevation adjustment bolts at D (one on each side of the mounting bracket)

and tip the hub up or down to point it at the center of the area to be served. Tighten the two

elevation adjustment bolts D.

6. Ensure that all bolts are tightened securely.

7. Using a 75 ohm F connector coaxial cable, connect the Hub to the power passing tap.

8. This completes the physical installation of the Hub.

(Optional) Secure the Hub to the Mast

Install the Hub per the steps provided below using a 7/16” combination or socket wrench.

1. Slide the mast mount brackets over the mounting pipe. Snug the bracket bolts.

2. Rotate the Hub towards the customer sites to be covered.

3. Adjust the down tilt of the Hub by increasing the gap between the Hub and the bracket at the

top and decreasing the gap between the Hub and the bracket at the bottom as show in

Figure 4-2.

Figure 4-2: Mast Mount Kit Bracket Offset

Establish a Local Connection to the Hub

)Connect a laptop computer to the RJ-45 Ethernet port of the Hub and connect to the Hub vai an

internet browser with the IP address set to 192.168.100.1.

The hub should respond with the “Enter Network Password” prompt.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Enter the “user id” and password. The default user id “admin” and password is “arcwave”.

Verify the Embedded Cable Modem has achieved operational maintenance state.

) Referring to the Cable Status page of the user interface:

Verify that the Embedded Cable Modem has successfully completed its initialization sequence. If it

has not, troubleshoot per normal procedures.

Set up and verify the Hub’s cable plant interface

) Referring to the Arcwave MIB Information page of the user interface:

• Verify that the Upstream Frequency and CATV EIA Input Channel settings are correct. If

Cable Interface Control and Automatic Frequency Set are enabled these values will be

entered automatically based on the values being used by the ECM. You can override these

values by disabling the Cable Interface Control and Automatic Frequency Set features and

entering them manually,

• Verify that DCE Lock is set to true.

Set up and verify the Hub’s wireless interface

)Referring to the Real Time Monitor Information table on the Arcwave MIB page of the user

interface:

• Set the Downstream Air Frequency.

• Set Select Downstream Power level the appropriate setting:

a. High for use with AX1255-SM-90 and AX1255-VM-90 Model Hubs operating with

64 QAM downstream modulation and links greater than ¼ mile.

b. Medium for use with all model Hubs operating with 256 QAM downstream

modulation at any link and 64 QAM modulation with links less than or equal to ¼

mile.

c. Low for use with all model Hubs at links below 500 feet.

Note: The “High” power setting is for use with the AX1255-SM-90 and AX1255-VM-90 Network

Hubs. Use of the “High” power setting with the AX1255-SM-25 cancels the FCC certification and

voids the user’s authority to operate the unit in the 5.8 GHz band.

• Verify that Downstream Enable and Upstream Enable are set to true.

If the Cable Interface Control is enabled and the EMC is operational, the Upstream

Attenuation level is set automatically based on the upstream transmit power level of the

ECM. If the EMC is not operation, then the Upstream Attenuation level must be set

manually. A good starting point is 30 dB.

• Verify that Downstream Lock and Upstream Lock are set to true.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

a. For a Select Downstream Power setting of High or Medium verify that the

Downstream Transmit Power setting indicates 10 or greater .

b. For a Select Downstream Power setting of Low verify that the Downstream

Transmit Power setting indicates Below 10.

Set the Hub Management Mode

)Referring to the Real Time Monitor Information table on the Arcwave MIB page of the user

interface:

1. Enter Title, if desired, otherwise it defaults to the MAC address of the ECM.

2. Set the Alarm Destination IP address, if desired.

3. Choose the method for managing the Hub by setting the Select Control Mode:

If Control via HTTP is chosen, then the Hub can be managed remotely over the cable network or

locally using the Ethernet port using the embedded a PC and the HTTP-based user interface.

If the Control via SNMP is chosen, then the Hub can be managed remotely over the cable network

using SNMP.

CPE installation

)Install the CPE mounting hardware (not supplied by Arcwave) per the manufacturer’s

recommended procedures and in accordance with the National Electric Code and local

ordinances.

Note: The CPE accommodates a mounting pipe with of 1-1/4” to 2-3/8” in diameter and the CPE

and mounting pipe require a minimum of 12 inches clearance on all sides for optimal performance.

Note: The CPE should be located as close to the edge of the building nearest the hub as possible.

When the CPE is mounted towards the middle or back of the building, the incoming wireless signal

may be reflected by the rooftop impairing the performance of the link. The CPE must be placed

high enough on the rooftop to provide the required Fresnel zone clearance (Fresnel zone =

blockage free zone).

Affix the CPE mounting mast

)Referring to Figure 4-3, loosen the "Side/side alignment bolts and slide the CPE over the

mounting pipe. Visually align the CPE in the direction of the Hub and snug the side/side

alignment bolts to hold the CPE in place.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Mounting bracket (included)

Elevation alignment bolt

F-connector (before taping)

Pipe

Side/side alignment bolt

Figure 4-3: CPE Mounting Diagram

Install the Coaxial Cable and Ground Connection

)Install the coaxial cable and ground connection as shown in Figure 4-4:

Inserter

P/Supply P/Supply

Grounding

Device

Building

Entrance

Ground

LAN/PC

CPE

RG-6 Cable

(length up to 200 ft.)

RG-6 cable

RG-6 Cable

Cable Modem

120 VAC 120 Vac

Weatherproof F-type

Indoor F-type connector

Figure 4-4: CPE Wiring Diagram

ARCXTEND USER MANUAL – R1.4, ISSUE 4

)Connect an RG-6 coaxial cable to the F connector located on the rear of the CPE. Waterproof

the connection using a suitable method such as taping with Coax-Seal2 or Scotch #88.

Note: Be sure to leave sufficient cable slack for final CPE alignment and ensure that the cable runs

directly downward from the connector to avoid water running down the cable and into the F

connection.

)Route the coaxial cable to the building entry point utilizing UV-resistant tie-wraps and staples or

cable clamps as required.

Note: UV-rated cable should be used outdoors. In some buildings plenum-rated or riser-rated

cable is required for inside runs.

)Mount a CATV system standard grounding device in Figure 5-5 as close as possible to the point

of cable entry into the building. Connect the grounding device to a suitable “grounding

electrode” as required per local building codes.3

)Connect the RG-6 coaxial cable from the CPE to the grounding device and waterproof all

outdoor F connectors.

To Subscriber Transceiver

Grounding device

Ground wire (green or bare)

To power inserter

& cable modem

Figure 4-5: Grounding device at subscriber premises

2 Coax-Seal is available from Universal Electronics, Inc. Phone: 828-293-2222.

3 The National Electric Code, sections 820-33 and 820-40, describes this requirement in detail.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

)Inside the subscriber premises, route the RG-6 from the building entrance point to where the

cable modem will be used.

)Terminate and install an F connector on the cable. Connect the cable from the CPE to the “to

antenna” F female connector of the power inserter.

Install the power adaptor and DC inserter

)Install the DC inserter as show in Figure 4-6. Connect the power adaptor to the DC inserter as

show in Figure 4-4 and figure 4-6. Plug the power adaptor into a surge protected AC power

receptacle. Note the AC Power Pack must be within 300 feet of the CPE.

Figure 4-6: Power Inserter and AC/DC adaptor

CPE Alignment

Note: The higher the received signal level, the less likely the system will be affected by

interference, plant variations, and geography. High received signal strengths are obtained by proper

alignment of the CPE to the Hub.

Connect the signal strength meter

)Connect the port of the DC inserter going to the cable modem to the RX side of the AR100

signal strength meter (depicted in Figure 4-7) or equivalent signal strength meter .

To CPE (RF &

PWR)

To Cable Modem

To Power Pack

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Figure 4-7: AR100 Signal Strength Meter (SSM)

)Align the CPE for maximum signal strength as follows:

1. Using a 7/16” wrench (open end, box or socket), loosen the two elevation alignment bolts

until the CPE can be tilted up or down by hand, but will hold its position.

2. Observe the display of the alignment device being employed and orient the CPE up and

down to achieve a maximum peak signal. Adjust the gain control on the AR100 as needed.

3. Tighten the elevation alignment bolts slightly.

4. Using the same wrench loosen the four mounting bolts so the CPE can be oriented side to

side by hand.

5. Observe the display of the alignment device being employed and orient the CPE side to side

to achieve a maximum peak signal.

6. Tighten the elevation alignment bolts slightly.

7. Repeat the elevation (tilt up or down) adjustment, and then the azimuth (side by side)

adjustment once again.

8. Tighten the elevation alignment (tilt) bolts, taking care not to over tighten.

9. Tighten the mounting bolts firmly, but do not over tighten.

10. Disconnect the coaxial cable from the RX side of the AR100 and connect to the cable

modem.

Verify CPE output signal at input to cable modem

)Using a Digital Cable TV Installation Meter, measure the downstream RF channel power level.

The typical target power level range is between 0 and +7 dBmV.

DS received power level is too

high

DS received power level is too

low

DS signal is not present

If the DS received power level

is too high install one or more

10 dB (AX3155-ECF-10) or 20

dB (AX3155-ECF-20) low

pass attenuators between the

power inserter and the cable

Select Downstream Power

setting is correct.

Reduce the cable and RF

hardware loss between CPE

and cable modem or add bi-

Verify integrity of in-building

cabling and power.

Make sure CPE Power

Adaptor and DC inserter are

installed properly.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

modem.

If more than 30 dB of

attenuation is required and the

Select Downstream Power

setting is High, change the

setting to Medium.

directional amplification.

Redo the CPE alignment

process

Verify the wireless range and

LOS path between Hub and

CPE are within specified

limits.

Check DC power level at input

to CPE.

Check coaxial cable

connections.

Verify the wireless range and

LOS path between Hub and

CPE are within specified

limits.

Cable Modem Installation

)Connect the cable modem to the modem side of the DC power inserter as shown in 4-4 and

Figure 4-6. Complete installation of the cable modem using normal procedures.

If the cable modem registers with the network

Verify the downstream signal level

) Using the cable modem’s diagnostic interface, check that the downstream signal level is within

the desired cable modem operating range.

DS received power level is too high to cable

modem

DS received power level is too low

If the DS received power level is too high

install one or more 10 dB (AX3155-ECF-10)

or 20 dB (AX3155-ECF-20) low pass

attenuators between the power inserter and

the cable modem.

If more than 30 dB of attenuation is required

and the Select Downstream Power setting is

High, change the setting to Medium.

Check that the Select Downstream Power

setting is correct.

Reduce the cable and RF hardware loss

between CPE and cable modem or add bi-

directional amplification.

Redo the CPE alignment process

Verify the wireless range and LOS path

between Hub and CPE are within

specified limits.

Table 4-2: DS received power level troubleshooting

Verify the upstream signal level

)Using the cable modem’s diagnostic interface, check the upstream signal (US) level is within the

desired operating range.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

US transmit power of the cable modem is too

high

US transmit power of the cable modem is

too low

If the US transmit power is too high, decrease

the Upstream Attenuation in the Arcwave MIB

Maintenance page of the user interface

setting by an amount equal to the desired

decrease in the upstream power level. i.e. if

the US transmit power is 50 dBmv and it

should be 45 dBmV then reduced the

Upstream Attenuation setting by 50 dBmV

minus 45 dBmV, or 5 dBmV.

Reduce the cable and RF hardware loss

between CPE and cable modem or add

amplification.

Redo the CPE alignment process

Verify the wireless range and LOS path

between Hub and CPE are within specified

limits.

If the US transmit power is too low,

increase the Upstream Attenuation in the

Arcwave MIB Maintenance page of the

user interface setting by an amount equal

to the desired increase in the upstream

power level. i.e. if the US transmit power

is 40 dBmv and it should be 45 dBmV

then increase the Upstream Attenuation

setting by 50 dBmV minus 45 dBmV, or 5

dBmV.

Table 4-3: US transmit power level troubleshooting

If the cable modem doesn’t register with the network

If the cable modem does not register with the network, troubleshoot as follows:

Problem Solution

Does not detect and lock on DS channel Check to see if the the MER of the

downstream RF channel is within specificied

limits:

MER should be at or above 27 dB for 64

QAM, and 31 dB for 256 QAM. If it is not,

check the following:

Verify that the Select Downstream Power

setting is correct for the downstream

modulation and wireless range.

Change Downstream Air Frequency to a

different channel to rule out interference.

Verify the wireless range and LOS path

between Hub and CPE are within specified

limits.

Does not detect and lock on US channel Using the cable modem’s diagnostic

interface, see if the cable modem is seeing

ARCXTEND USER MANUAL – R1.4, ISSUE 4

the correct upstream RF channel.

If it does see the channel and can’t lock on,

reduce the Upstream Attenuation setting at

the Hub.

If it does not see the channel, and Cable

Interface Control and Automatic Frequency

Set are enabled, verify that the Hub ECM and

the subscriber cable modem are assigned to

the same upstream frequency and are

excluded from an upstream load balancing

group.

If it does not see the channel, go to the Hub

and check the following:

Using -20 dB monitor port of the Hub verify

the Hub is receiving a wireless signal from

the CPE.

If there is a signal, vary the Upstream

Attenuation setting at Hub until the cable

modem locks on the US channel.

If there is not a signal:

Verify that the cable modem transmitter is

working.

Replace the CPE

Cable Modem does not receive an IP address Perform normal cable modem installation

troubleshooting procedures.

Cable modem does not receive time of day

(ToD)

Perform normal cable modem installation

troubleshooting

Cable modem does not receive config file Perform normal cable modem installation

troubleshooting

Cable modem initializes, receives a config file,

and then reboots

Make sure the configuration file being

downloaded to the cable modem does not

contain downstream channel information. The

downstream RF channel frequency being

delivered by the CPE to the Cable Modem is

different than what is received at the Hub.

Table 4-4: Cable modem registration

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Link Verification

Downstream path measurements

DS Modulation Expected Performance Troubleshooting

64 QAM 27 dB MER

10-8 BER, post-error correction

Inspect the constellation to

determine the type of impairment

affecting the signal and troubleshoot

accordingly.

Verify the plant MER is greater than

required for the downstream

modulation

256QAM 31 dB MER

10-8 BER, post-error correction

Verify the downstream power level

into the cable modem is between -6

dBmv and +15 dBmV.

Inspect the constellation to

determine the type of impairment

affecting the signal and troubleshoot

accordingly.

Verify the plant MER is greater than

required for the downstream

modulation

Table 4-5: Downstream path measurements

Upstream path measurements

Parameter Expected Performance Troubleshooting

CM output Power +40-52 dBmV typical.

58 dBmV max for QPSK, 55

dBmV for 16 QAM

If CM output power is too high,

reduce the amount of loss in the

drop to allow for margin or reduce

the Upstream Attenuation setting.

BER 10-8 BER, post-error correction

for QPSK and 16 QAM

To test BER on the return

path, the analyzer can ping the

CMTS with a packet of known

data. The ping command will

return the packet to the

analyzer from the CMTS on

the downstream path. To be

sure the packet does not go

any further than the CMTS

port; the analyzer can use a

trace route command to the

Verify RF return path performance

with the wireless link. This can be

done by looking at the BER of the

cable modem in the hub.

Check for interference in the 5.250

to 5.350 GHz band. If interference

is present, try changing the

upstream frequency HI/LO setting.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

dynamic host configuration

protocol (DHCP) server to

determine the route. The first

Internet protocol (IP) address

in the route to server is the

CMTS port.

Table 4-6: Upstream Path Measurements

ARCXTEND USER MANUAL – R1.4, ISSUE 4

USER INTERFACE

The Hub contains an HTTP-based web tool that can be used to interface to the unit. Following is a

guide to using this tool. The following functions are supported: System Info, Signal, Event Log,

Maintenance, and Arcwave MIB.

Accessing the Interface

To access the interface you first must be logged onto a computer that is in some way connected to

the Hub. This can be done either directly using the RJ-45 port on the Hub or through the cable

network. Enter the IP address of the Hub (default IP address on the Ethernet interface is

192.168.100.1) into the address bar of your browser and press the enter key on your keyboard.

Figure 5-1: Hub login screen

When the Hub is accessed the user is presented with a login screen (Figure 5-1). The user id is

‘admin” and the password is ‘arcwave” (all lower case without quotes). The user id and password

can be changed using the Maintenance page.

Cable Status Page

Figure 5-2: Cable Status page

ARCXTEND USER MANUAL – R1.4, ISSUE 4

The Cable Status page is the default web page and contains information on the status of the ECM.

Figure 5-2 shows the results for a normal ECM connection to the cable network. If the ECM has

failed to connect properly to the cable network, fewer of the tasks will be registered as Success.

The first one not showing as Success will be the task that is failing.

Initialize Hardware The embedded modem check its hardware

Find Downstream The embedded modem find the available downstream

frequency

Ranging After the embedded modem locks onto the available

downstream. It will get the upstream information from CMTS

and try to find the available upstream channel. And it will try

the tuning the upstream power to make it has equivalent

power that CMTS requests to be.

DHCP Bound The embedded modem is getting IP address from DHCP

server

Set Time-of-Day The embedded modem is trying to synchronize the device

time with TOD (time of day) server. The modem still can get

registered even it fails in getting TOD response.

Download CM Config file The embedded modem is getting configuration file from TFTP

server. And the IP address of TFTP server should be

specified in DHCP options

Registration The embedded modem use the configuration parameters

inside Cable Modem config file and request service from

CMTS

Pause Searching Downstream Stop all the tasks from downstream searching. Thus the

embedded modem will not try to register with CMTS

ARCXTEND USER MANUAL – R1.4, ISSUE 4

System Info Page

Figure 5-3: System Info page

The System info page contains General Information on the ECM including hardware and software

revision, MAC address, and DOCSIS standard compliance. It also contains Cable Modem IP

information that provides important IP networking information required to access the ECM.

General Information

Embedded Modem Model Name The model name of the Modem that embedded inside

Hardware Version The hardware version of the embedded modem

Software Version The software version of the embedded modem

Software Build Number The minor software version of the embedded modem. Some

times if the same code were compiled in different time, it will

has different build number. Generally it will be “00”.

MAC Address The MAC address of the embedded modem. This is used to

provision the device to be access. This MAC address should

be added in the DHCP server behind CMTS Ethernet side.

And need to assign the MAC address with corresponding

ARCXTEND USER MANUAL – R1.4, ISSUE 4

configuration to get service.

System Time The time that embedded modem get from TOD server and

the time-offset configure on DHCP server.

System Up Tome The duration from the last system boot up

Standard Specification Compliant The standard specification that embedded modem complies

with. DOCSIS 1.1/DOCSIS 2.0 stands for that this is a

DOCSIS 2.0 Modem and backward compatible with DOCSIS

1.1. If it shows DOCSIS 1.1 only that means this is a

DOCSIS 1.1 only cable modem.

Cable Modem IP Information

IP Address The IP address that embedded modem get from the DHCP

server

Subnet Mask The subnet mask of embedded modem that assigned from

DHCP server

Gateway IP The default gateway IP address of embedded modem that

assigned from DHCP server

DHCP Lease Time The lease time that embedded modem get from the DHCP

server

Attached Device

MAC Address The MAC address of other device that attached with this

embedded modem.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Signal Page

Figure 5-4: Signal Page

The Signal Page contains information on the signal status of the upstream and downstream

DOCSIS channels:

Arcwave MIB

Default Downstream Frequency Optionally choose the frequency where the ECM should first

attempt to acquire the downstream RF channel. This setting

will speed up the downstream RF channel acquisition time by

instructing the ECM to go directly to the indicated frequency

where the RF channel is located.

Frequency The frequency of the downstream channel that ECM is locked

on.

QAM Mode The modulation of the downstream channel that ECM is

locked on.

Channel Power The power level that ECM receives at this location.

SNR The signal noise ratio that the ECM receives at this location.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Upstream Signal

Channel ID The ID of the upstream channel that ECM is either attempting

to, or is, locked on.

Frequency The frequency of that US channel ID

Channel Width The channel width specified for this US channel ID. (Specified

in upstream channel profile inside CMTS)

Channel Power The transmit power of the ECM. The Channel Power

displayed is 10 dB higher than the actual upstream power

level at the F connector on the Hub.

DOCSIS 1.0 Class of Service Parameters

Class ID Indicates the class of service ID.

Max Downstream Rate (bps) The maximum downstream data rate that the ECM is

permitted to use.

Max Upstream Rate (bps) The maximum upstream data rate that the ECM is permitted

to use.

Upstream Channel Priority The preferred upstream channel ID for the ECM to use.

Guaranteed Min Upstream Data

(bps)

The minimum upstream data rate that is reserved for the ECM

to use.

Privacy Enable Enables the encryption of the frames transmitted using RF

signal over coaxial cable between CMTS and the ECM.

Event Log Page

Figure 5-5: System Event Log page

ARCXTEND USER MANUAL – R1.4, ISSUE 4

The Event Log page contains event information for the ECM and ARCSmart. The Event Log is

presented in reverse chronological order, so the most recent log entry is at the top. Each entry in

the log is time stamped in the format MMDDYYhhmmss in GMT (Greenwich Mean Time). The time

stamp is replaced by asterisks if the cable modem has not yet acquired the time.

The event log is useful when diagnosing sporadic problems, and can reveal the reason for the ECM

having previously gone offline. Not every line in the log represents an error, even if it is flagged as

an error. Log entries of events affecting the data service are flagged Critical, Alert, or Emergency.

DOCSIS standard events are reported for the ECM and following are the valid ARCSmart 2.0

events:

System Event Log

Index The sequence in index of according to the time that event

occurred.

Date/Time The date and time that the event occurred

ID The abbreviation and classification of the event inside the

device. Where;

T01 is equivalent to T1 timeout - Wait for UCD timeout

T02 is equivalent to T2 timeout - Wait for broadcast ranging

timeout

T03 is equivalent to T3 failure or timeout - Wait for ranging

response

T04 is equivalent to T4 failure or timeout - Wait for unicast

ranging opportunity.

T06 is equivalent to T6 failure - Wait for REG-RSP and REG-

ACK

That defined in CM-SP-RFIv2.0-I06-040804

Level The severity level of this event

Text The description of that event

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Event Syntax Event

Message

Text

Severity Customer

Symptom

Explanation of

event

/Corrective

Action

What will the

Customer

Experience

AR300 System Lock Lost The Unit

has lost lock

in the

Upstream or

Downstream

Critical Modems on

the

ARCXtend

system lose

sync

The transmitter

or receiver

module (or both)

has lost lock/

Clear alarms

and/or reset

power on unit &

check if

condition goes

away

Lost of traffic,

system

outage

AR300 Hub Dead The Unit is

dead.

Critical Modems on

the

ARCXtend

system lose

sync

The transmitter

or receiver

module or both

stop

communicating

with the control

module/ Clear

alarms and/or

reset power on

unit & check if

condition goes

away

Lost of traffic,

system

outage

AR300 Input voltage

outside of tolerance

Voltage

level is

either below

or above

tolerance

limits

Major This alarm

gets

displayed

The voltage

being supplied

to the Unit is

improper/ Check

voltage levels &

clear alarm

immediate

impact but

could result

in loss of

traffic,

system

outage.

AR300 Downstream

(Transmitter) Over

Temperature

The Unit is

operating

above Max.

operating

temperature

Major This alarm

gets

displayed

The Unit is

operating above

Max. operating

temperature/

Check operating

temperature,

clear alarm &

switch the unit

off if condition

does not go

away.

immediate

impact but

could result

in loss of

traffic,

system

outage.

AR300 DCE Unlocked or

Error

The Control

module has

lost lock

Critical Modems on

the

ARCXtend

system lose

sync

The Control

module has lost

lock/ Clear

alarms and/or

reset power on

unit & check if

condition goes

away

Lost of traffic,

system

outage

AR300 Upstream

(Receiver) Unlocked or

Error"

The

Upstream

module has

lost lock.

Critical Modems on

the

ARCXtend

system lose

sync

The Upstream

module has lost

lock/ Clear

alarms and/or

reset power on

unit & check if

condition goes

away

Lost of traffic,

system

outage

AR300

Dt(T itt)

The

Critical Modems on

The

Lost of traffic,

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Table 5-1: ARCSmart Event Messages

Maintenance

Figure 5-6: Maintenance Page

The Maintenance page provides the ability to change the user id and password. After entering the

new username, password and click on the Apply button. The username and password will updated

to the new settings.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Arcwave MIB page

Figure 5-6: Arcwave MIB page

The Arcwave MIB page contains information and configurable parameters pertaining to the

operation of the Hub and contained in the Arcwave Enterprise MIB.

Arcwave MIB Maintenance

ARCXtend Id Displays the Hub type, AX1255 or AX1455. This parameter is

used internally by ARCSmart to customize the user interface

based on the Hub type.

Select Control Mode Chose the method for managing the Hub.

If Control via HTTP is chosen, then the Hub can be managed

remotely over the cable network or locally via the Hub’s

Ethernet port, using a PC and the HTTP-based user interface.

If the Control via SNMP is chosen, then the Hub can be

managed remotely over the cable network using SNMP.

Cable Interface Control Chose “Enable” to turn-on the RF interface of the ECM and

ARCXTEND USER MANUAL – R1.4, ISSUE 4

“Disable” to turn it off. This parameter is useful when the Hub

is used for a non-DOCSIS application, such as the wireless

transport of a digital video or CBR (constant bit rate) voice

signal, and there is no DOCSIS channel on the cable plant.

Selecting the “Off” setting will prevent the ECM from

continually scanning for a downstream channel, when none is

present. The default setting is “On”

Select Upstream Band Chose which of the two copies of the upstream wireless

carrier being transmitted by the CPE is to be received by the

Hub and passed to the cable network. This parameter is used

to avoid potential interference on the upstream channel.

If High is chosen, then the Hub will receive the upstream

wireless carrier at 5300 MHz plus the frequency of the

upstream channel

If Low is chosen, then the Hub will receive the upstream

wireless carrier at 5300 MHz minus the frequency of the

upstream channel.

For example, if the upstream frequency is 32.0 MHz, the

wireless signal will be transmitted at 5332 MHz (High) and

5268 MHz (Low). As show in Table 5-2, certain combinations

of downstream wireless carrier frequencies and upstream

channels require a specific High or Low setting for optimal

performance. For all other downstream wireless carrier

frequencies, the default setting is High.

Auto Frequency Set Chose “ENABLE” to have ARCSmart automatically program

the Hub CATV EIA Input Channel and Upstream Frequency

parameters with the same values used by the ECM. When set

to “ENABLE” these parameters will change whenever the

values are changed at the ECM. This setting is used for plug-

n-play installation of the Hub. Chose “DISABLE” when these

parameters will be set manually to values different than those

used by the ECM. In this mode, the values entered will persist

regardless of the values used by the ECM and across a Hub

power outage or reboot. This mode is useful when the Hub

will transmit a non-DOCSIS channel, such as digital video or

CBR voice.

The default setting is “ENABLE”. Note: “Cable Interface

Control” must be set to “Enable” in order for this element to be

set to “Enable”.

Upstream Frequency Displays the frequency of the upstream channel that is being

received by the Hub.

CATV EIA Input Channel Displays the EIA standard channel number of the downstream

channel that is being received by the Hub.

Upstream Attenuation Chose the amount of attenuation (in dB) in the upstream

receive path of the Hub.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

If “99” is entered, ARCSmart will automatically set the

attenuation based on the upstream channel transmit power

out of the ECM.

If any other value in the valid range from 0 to 64 is entered,

that the attenuation is set to that value.

This parameter is used to increases or decreases the

upstream channel transmit power of a cable modem

connected wirelessly to a Hub. Increasing the attenuation will

cause the CMTS to increase the cable modem’s upstream

channel transmit power. Decreasing the attenuation will cause

the CMTS to decrease the cable modem’s upstream channel

transmit power. The change in the attenuation and the change

in the upstream channel transmit power, while loosely related,

is not one to one.

Note: “Cable Interface Control” must be set to “Enable” in

order for this element to be set to “99” (Automatic Upstream

Attenuation setting).

Downstream Air Frequency Chose the downstream wireless carrier frequency.

Valid settings for AX1255 model Hubs are: 5729, 5735, 5741,

5747, 5759, 5765, 5771, 5777, 5783, 5789, 5795, 5807, 5813,

5819, 5825, 5831, 5837, and 5843 (in MHz).

The downstream channel frequency out of the CPE is the

Downstream Air Frequency minus 5300 MHz. The default

setting is 5759.

Downstream Enable Chose “TRUE” to turn on the downstream wireless transmitter

and “FALSE” to turn it off. The default setting is “TRUE”.

Upstream Enable Chose “TRUE” to turn on the upstream wireless receiver and

“FALSE” to turn it off. The default setting is “TRUE”.

Enter Title Enter a 40 characters alphanumeric string. The default

setting is the MAC address of the ECM. This parameter can

be used to give a unique identifier for the Hub.

Select Downstream Power Chose the downstream wireless transmitter power setting.

If “High” is selected, the transmit power is set to 19 dBm. (For

use with AX1255-VM-90 and AX1255-SM-90 Hubs only.)

If “Medium” is selected, the transmit power is set to 13 dBm.

If “Test” is selected, the transmit power is set to 3 dBm.

Alarm Mask Enter the hex value of the events that are to be masked. All

0’s masks all alarms, all F’s lets all alarms through, individual

alarms are as follows:

Definition of mmmm failure code (Logical OR of the bits)

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Bit 0: 1 = System Lock Lost

Bit 1: 1 = Hub Dead

Bit 2: 1 = Input voltage outside of tolerance

Bit 3: 1 = Downstream (Transmitter) Over Temperature

Bit 4: 1 = DCE Unlocked or Error

Bit 5: 1 = Upstream (Receiver) Unlocked or Error

Bit 6: 1 = Downstream (Transmitter) Unlocked or Error

Bit 7: 1 = Local modification notification

Alarm Destination Enter the IP address where SNMP traps are to be sent by the

Hub.

Clear Alarms Click on the “Apply” button to clear all alarms. (presented in

the “Event Logs” page)

Real time monitor Click on the “Apply” button to refresh the Real Time Monitor

display.

Burst Override Mode Chose “On” to disable PureBurst and “Off” to enable

PureBurst. When no traffic is present on the upstream cable

interface, PureBurst mutes the interface preventing the

introduction of ingress noise into the cable network.

Firmware Download Information

ARCXtend Id Displays the Hub type, AX1255 or AX1455. This parameter is

used internally by ARCSmart to customize the user interface

based on the Hub type.

TFTP server IP Address Enter the TFTP (Trivial File Transfer Protocol) server’s IP

address.

Firmware Upgrade Filename Enter the file name of the ARCSmart controller firmware to be

downloaded to the Hub.

Start Upgrade Click the “Apply” button to initiate the download. The

download of the new controller firmware will take up to two

minutes. The download can be verified by refreshing the

page. The version number of the downloaded firmware should

be displayed in the Firmware Version Number box under in

the Real Time Monitor Information table.

Arcwave MIB Real Time Monitor Information

Firmware Version Number: Displays the ARCSmart firmware version number.

Hardware Version Number: Displays the ARCSmart AX300 module hardware revision

number.

DCE Lock: Displays the status of the Hub cable network interface in the

downstream direction. It will display “TRUE” if the Hub is

ARCXTEND USER MANUAL – R1.4, ISSUE 4

receiving a downstream channel and “FALSE” if it is not.

Downstream Lock: Displays the status of the Hub wireless transmitter. It will

display “TRUE” if the Hub is tuned to transmit at the

downstream wireless carrier frequency.

Downstream Transmit Power: Displays the power level of the Hub wireless transmitter into

the antenna.

Upstream Lock: Displays the status of the Hub wireless receiver. It will display

“TRUE” if the Hub is tuned to receive at the upstream wireless

carrier frequency.

Power Supply Voltage: Displays the DC voltage at the ARCSmart AX300 module. It

indirectly reflects the status of the AC adaptor.

Upstream Power Level: Displays the approximate upstream transmit power level. It is

the upstream transmit power level of the ECM minus 10

dBmV.

Transmitter Temperature: Displays the temperature in degrees Celsius at the surface of

the Hub wireless transmitter module.

DS Wireless Carrier

Frequency (MHz)

Upstream Channel Center Frequencies

(MHz) Default High / Low Setting

5729 and 5735 29.5 through 30.4

This combination is not

allowed and the DS will

automatically be changed

to 5741.

5729 and 5735 30.5 through 42.4 High

5741 13.5 through 26.4 High

5747 13.5 through 26.4 High

5753 13.5 through 26.4 High

5759 5.5 through 10.4 High

5765 5.5 through 10.4 High

5771 5.5 through 18.4 Low

5777 5.5 through 18.4 Low

5783 5.5 through 18.4 Low

5789 21.5 through 34.4 Low

5795 21.5 through 34.4 Low

5801 21.5 through 34.4 Low

5807 37.5 through 43.4 Low

5813 37.5 through 43.4 Low

5819 High

5825 High

5831 High

5837 High

5843 High

5741 through 5843 29.5 through 30.4 Low

5729 through 5843 If not otherwise shown above High

Table 5-2: Default Upstream Band Setting

ARCXTEND USER MANUAL – R1.4, ISSUE 4

ACCESSORIES

ARCXtend Accessories

The following accessories are available from Arcwave to use with the ARCXtend solution. To

purchase accessories, contact your sales representative.

• AR100 Signal Strength Meter – For use in CPE alignment.

Figure 6-1: AR100 Signal Strength Meter

ARCXTEND USER MANUAL – R1.4, ISSUE 4

SPECIFICATIONS

AX1255 Network Hub

Transceiver

Wireless Channels Downstream: 20, 6.0 MHz Channels

Upstream: 14, 3.2 MHz Channels

7, 6.4 MHz Channels

Wireless Frequency Range (TX) 5.725 to 5.850 GHz; (RX) 5.250 to 5.350 GHz

Maximum Transmit Output Power

High: +19 dBm (Note: The “High” power setting is for

use with the AX1255-SM-90 and AX1255-VM-90

Network Hubs. Use of the “High” power setting with the

AX1255-SM-25 cancels the FCC certification and voids

the user’s authority to operate the unit in the 5.8 GHz

band.)

Medium: +13 dBm

Low: + 3 dBm

RF Frequency Range 90 to 860 MHz (Downstream); 5 to 42 MHz (Upstream)

Downstream Modulation

Supported

64 QAM, and 256 QAM

Upstream Modulation Supported QPSK, 16 QAM, and 64 QAM

Downstream Input Signal Level

into the Hub

-5 to +25 dBmV

Upstream Output Signal Level out

of the Hub

+35 dBmV Typical

Upstream Receiver Noise Figure 3.5 dB Typical

Adjacent Channel Rejection Greater than 40 dB

Antenna

Horizontal Beamwidth (–3 dB)

Vertical Beamwidth (-3 dB)

Transmit Gain

Receive Gain

EIRP

AX1255-VM-90 AX1255-SM-90 AX1255-SM-25

90° 90° 20°

6° 20° 20°

13 dBi 10 dBi 20 dBi

16 dBi 10 dBi 16 dBi

31.5 dBm 28.5 dBm 32 dBm

Network Management

MIB

Remote

Local

SNMP MIB (Alarms, Parameters, Metrics)

SNMP or HTTP-bases User Interface

HTTP-bases User Interface

Mechanical, System, and Regulatory

Services Supported DOCSIS, Digital and Analog Video, CBR Voice, T1/E1

Input Power 60 or 90 Vac nominal; 45 to 125 Vac actual; or

+24 Vdc nominal

Internal Operating Power +24 Vdc nominal

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Power Dissipation 24 Watts Maximum (at 90VAC)

Operating Temperature Range –40°C to +65°C

Operating Humidity 100% condensing

Protocols SNMP v1/2/3, DOCSIS 2.0

Regulatory FCC, IC (Canada)

Connections DC Power and Data port RJ-45

Cable port F-Type female

-20 dB Monitor port F-Type female

Dimensions and Weight AX1255-VM-90 AX1255-SM-90/25

41” x 7” x 5”, 14 lbs. 17” x 7.5” x 5.6”, 6 lbs.

Table 7-1: AX1255 Specifications

AX3155 Customer Premise Antenna / Transceiver (CPE)

Transceiver

Wireless Channels Downstream: 20, 6.0 MHz Channels

Upstream: 14, 3.2 MHz Channels

Wireless Frequency Range (TX) 5.250 to 5.350 GHz; (RX) 5.725 to 5.850 GHz

Maximum Transmit Output Power +30 dBm EIRP

Receiver Noise Figure Less than 3.5 dB typical

DOCSIS Frequency Range 425 to 550 MHz (Downstream); 5 to 42 MHz

(Upstream)

Downstream Modulation

Supported

64 QAM and 256 QAM

Upstream Modulation Supported QPSK, 16 QAM, and 64 QAM

Upstream Input Signal Level +25 to +58 dBmV

Downstream Output Signal Level Variable, based on link distance; +20 dBmV Typical

Minimum Downstream Input

Signal Level to the Cable Modem

64 QAM: -15 to +15 dBmV

256 QAM: -6 to +15 dBmV

Receiver Noise Figure 3 dB Typical

Antenna

Horizontal Beamwidth (–3 dB)

Vertical Beamwidth (-3 dB)

Transmit Gain

Receive Gain

10°

20°

14 dBi

22 dBi

Mechanical, System, and Regulatory

Input Power 120 Vac Power Pack

Operating Power 18 Vdc Power of Coax

Maximum Distance from CPE to 300 feet

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Power Pack

Power Dissipation 5 Watts Maximum

Operating Temperature Range –40°C to +65°C

Operating Humidity 100% condensing

Regulatory FCC, IC (Canada)

Mounting 1-1/4” to 2-3/8” Pipe

Connections Cable port F-Type female

Dimensions and Weight 14-5/8” x 14-5/8” x 2-3/8”, 5.1 lbs.

Table 7-2: AX3155 Specifications

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Environment Specifications

The environmental specifications for the ARCXtend solution including the AX1255, AX3155 and

associated electrical and mechanical subassemblies are given in Table 9-3 below.

Requirement Specification

Altitude

Operating Low to 10,000 feet

Storage and Transportation Low to 50,000 feet

Ambient Temperature

Operating –40 to +65°C (Includes solar loading)

Storage –60 to +75°C

Humidity

Operating 5 to 100% RH Non-condensing

Storage 5 to 95% RH

Rain

Operating Wind driven rain of 5.8 in/hour at 70 MPH

May not cause a link outage, but can degrade

performance)

Survival No requirement

Water immersion No leaks at 15 PSI internal pressure for 10 seconds

Salt Spray Per Specification – Comcast 1000 hrs.

Wind

Operating (Hub): 112 MPH (180km/hr) with 1 inch radial ice

May not cause a link outage, but can degrade

performance.

The deviation of the antenna main beam axis should

not be more than 0.3 times the smaller of the two

azithumal and elevation HPBW as a general rule)

Survival (Hub)l: 125 MPH (200km/hr)

No significant loss of alignment after test

Vibration

Operating: 0.001 G2/Hz from 5-100 Hz (IEC 60068-2-6)

Survival: 0.01 G2/Hz from 5-100 Hz (IEC 60068-2-6)

Shock

Survival: IEC 60068-2-27

Packaged: 4 Ft. drop

Corrosion

Plated Surfaces: ASTM D-2247, ASTM B-117/DIN 75-302

Painted Surfaces: ASTM 117-B (Salt Spray), ASTM D3359, ASTM-

D4060

UV Resistance/Stability ASTM G-53/DIN 53-505

Lightning/ESD 20kA IEC 1000-4-5 8/20µs Waveform

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Surge Withstand Capability (Hub) CAT B3 6kV, 3kA Combination wave on all RF ports

CAT A3 6kV, 200A Ring Wave on DC power Port

CAT B3 6kA Combination wave on 120 Vac

Transformer Input

Table 7-3 Environmental Specifications

CUSTOMER SUPPORT

Following is a description of the services we make available to our customers and channel partners.

For current service pricing please refer to your current price list.

Service Policy

Our support organization provides pre-sale, installation and post-sale support to service providers

who have purchased systems directly from us. We offer 24-hour telephone support seven days a

week. The services listed in this guide are in addition to the standard warranty offered with all

Arcwave provide products.

Services provided during standard warranty period are:

• Free of charge hardware repairs and software/firmware fixes during the warranty period.

• Free of charge access to 24/7 technical support for 90 days

Services

Arcwave offers its customers and partners a complete set of support services on a demand basis or

under a regular or negotiated service agreement.

Technical Services

• Technical assistance

• Telephone and E-Mail

• RMA (Return Material Authorization) Process

• Documentation

• Installation and Planning Manuals

• Application Notes

• Onsite Support

• Emergency Onsite Support

Software/Firmware Services

• Updates

• Upgrades

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Hardware Services

• Warranty repair and return

• Out-of-Warranty repair and return

Training Services

• Technical Training

• Sales Training

Standard Service Agreements

Our standard service agreement provides for:

• Free of charge access to 24/7 technical support

• Free of charge software/firmware upgrades

• Training at 15% discount

• On-Site Field Support at a 10% discount

• Emergency On-Site Field Support at a 10% discount

• Spares at 10% discount

• Custom service and extended warranty agreements are available upon request.

Technical Services

Technical Assistance

• 24/7 Customer Service Line: (408) 748-7570 or (800) 863-8225

• Customer Service E-Mail: techsupport@arcwaveinc.com

Return of Material Authorization (RMA) Initiation and Tracking

The RMA process is initiated by contacting Arcwave technical support via telephone or e-mail.

Following receipt and review of the RMA request and if the return is authorized, Arcwave will assign

an RMA number. Only after receipt of this number is the customer authorized to ship the product

back to Arcwave. The RMA number is subsequently used to track the status of the return

Onsite Support

Arcwave on-site support service is provided per customer request. The appropriate technical

support engineer will be dispatched to the customer site after agreed upon objectives have been

established between the customer and Arcwave. It is the customer’s duty to make necessary

preparations for the visit, provide access to the relevant sites, and escort Arcwave personnel during

their visit. The customer will also provide security arrangements whenever required. Arcwave will

work with the customer to schedule onsite support in a timely fashion. At the end of the visit,

Arcwave will provide a report summarizing the problem(s) found, corrective action(s) taken, and any

recommendations to prevent the problem(s) from reoccurring in the future.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Emergency Onsite Support

If an emergency condition, such as a network outage, arises Arcwave will make every effort to

dispatch the appropriate technical support engineer as soon as reasonably possible and upon

terms agreed to with the customers. This normally means the customer has agreed to pay for

expedited travel and lodging expenses as well as normal emergency onsite support rates.

Software / Firmware Services

Updates

Arcwave will provide periodic software and firmware updates that enhance performance or fix

problems. Software and firmware updates are provided free-of-charge under warranty and with a

service agreement. Arcwave does not typically offer software and firmware updates outside of

warranty or a service agreement so it is strongly recommended that customer’s choose an annual

service agreement.

Upgrades

Arcwave will also offer periodic software and firmware upgrades that provide additional product

functionality. It is often the case that in order to implement the upgrade the customer’s network

must have software and firmware updated to the most current revision to operate properly.

Hardware Services

Warranty Repair and Return

If an item of Equipment malfunctions or fails in normal intended usage and maintenance within the

applicable Warranty Period:

(a) The Customer shall promptly notify Arcwave of the problem and the serial number of the

defective item;

(b) Arcwave shall, at its sole option, either resolve the problem over the telephone or provide the

Customer with a Returned Materials Authorization number (RMA #) and the address of the location

to which the Customer may ship the defective item;

returned item describing the fault and the Customer's return address. The Customer shall, at its

cost, properly pack the item to be returned, prepay the insurance and shipping charges, and ship

the item to the specified location;

(d) If the Arcwave product shall prove to be defective in material or workmanship upon examination

by Arcwave, Arcwave shall either repair or replace the returned item at its sole option. The

replacement item may be new or refurbished; if refurbished, it shall be equivalent in operation to

new Equipment. Should a returned item be replaced by Arcwave, the Customer agrees that the

returned item shall become the property of Arcwave.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

(e) Arcwave shall ship the repaired item or replacement to the Customer's return address by carrier

and method of delivery chosen by Arcwave at its cost. If Customer has requested some other form

of conveyance, such as express shipping, then the Customer shall pay the cost of return shipment.

(f) Under no circumstances will Arcwave accept a return shipment without a properly assigned RMA

Out of Warranty Repair and Return

Out of warranty repairs and returns are subject to the same process as in-warranty repair and

returns with the addition that upon receipt and evaluation of the product Arcwave will notify the

customer in writing of the estimated cost of repairing the product or that the product cannot be

repaired. In the former case the customer has the option to pay for the repair, request return of the

product at their expense, or to purchase a replacement product. No credit is given for the defective

product if a new product is purchased and the price of the replacement will be per the pricing in

effect at the time of the order.

Spares

Arcwave will provide upon request a recommended list and minimum stocking quantities of spare

parts for a customer’s network or networks. Maintaining an adequate inventory of spare parts and

completion of technical training is the most cost effective way to keep your network up and running.

As an incentive to purchase spare parts Arcwave will provide special discounts on spares when

purchased with the network equipment. In addition customers who maintain an active service

agreement with Arcwave also receive discounts on spare parts.

Training Services

ARCXtend System Planning, Installation & Maintenance Training Course

• Content: Covers planning, installation, configuration, and trouble shooting ARCXtend

equipment

• Duration: 1 Day

• Format: Interactive Training Class with Lab

• Location: Campbell, Ca or Distributor Facility

• Price: Per current price list

• Expenses: For training at your facility add travel, lodging, and meal expenses for (1) trainer

for (2) days.

Summary of Services

In warranty Out of Warranty

W/ Standard

Service

Agreement

W/O Standard

Service

Agreement

W/ Standard

Service

Agreement

W/O Standard

Service

Agreement

Technical Services

Technical

Assistance: Phone

24 x7 No

Charge

24 x7 No

Charge for 90

24 x7 No

Charge

Hourly Rate

charged in

ARCXTEND USER MANUAL – R1.4, ISSUE 4

and E-Mail Days Receipt

of Equipment

Hourly Rate

after 90 Days

1/10th of an

hour

increments.

Payable in

advance.

RMA Process Access

Available

Access

Available

Access

Available

Access

Available

Documentation Electronic

Version Free

with Product

Purchase

Electronic

Version Free

with Product

Purchase

Electronic

Version Free

with Product

Purchase

Electronic

Version Free

with Product

Purchase

Onsite Support 10% Discount Daily Rate

plus Travel &

Lodging

10% Discount Daily Rate

plus Travel &

Lodging

Emergency Support 10% Discount Daily Rate

plus Travel &

Lodging

10% Discount Daily Rate

plus Travel &

Lodging

Software/Firmware Services

Updates No Charge No Charge No Charge As Quoted

Upgrades Per Price List Per Price List Per Price List Per Price List

Hardware Services

Repair and Return No Charge

subject to

warranty

Terms and

Conditions

Return-to-

factory

response for

the length of

the warranty

period, with

10 business-

day

turnaround

from the date

of receipt of

the defective

product at

Arcwave.

Expedited

Shipping

available at

customer’s

expense.

No Charge

subject to

warranty

Terms and

Conditions

Return-to-

factory

response for

the length of

the warranty

period, with

10 business-

day

turnaround

from the date

of receipt of

the defective

product at

Arcwave.

Expedited

Shipping

available at

customer’s

expense.

As Quoted

Return-to-

factory

response for

the length of

the warranty

period, with

10 business-

day

turnaround

from the date

of receipt of

the defective

product at

Arcwave.

Expedited

Shipping

available at

customer’s

expense.

As Quoted

Return-to-

factory

response for

the length of

the warranty

period, with 10

business-day

turnaround

from the date

of receipt of

the defective

product at

Arcwave.

Expedited

Shipping

available at

customer’s

expense.

Spares Special Special 10% Discount Per Price List

ARCXTEND USER MANUAL – R1.4, ISSUE 4

discount

available if

part of initial

order

discount

available if

part of initial

order

Training Services 15% Discount Standard

Rate

15% Discount Std Discount

Table 8-1: Arcwave Service Offering Matrix

ARCXTEND USER MANUAL – R1.4, ISSUE 4

ARCWAVE ENTERPRISE MIB

This guide describes Arcwave Enterprise Management Information Base (Arcwave MIB) Release

2.0. The Arcwave Enterprise MIB is included in all ARCXtend Network Hubs.

The MIB file contains variables that can be set or read to provide information on network devices

and interfaces. The Arcwave MIB is a set of variables that are private extensions to the Internet

standard MIB II. The MIB II is documented in RFC 1213; Management Information Base for

Network Management of TCP/IP based Internets: MIB-II.

The listing of Arcwave MIB variables in the Arcwave.mib text file is identical to the listing of Arcwave

MIB variables in this guide. The Arcwave.mib file is included on each product documentation CD

and can also be obtained from Arcwave technical support.

The Arcwave MIB variables are accessible via the Simple Network Management Protocol (SNMP),

which is an application-layer protocol designed to facilitate the exchange of management

information between network devices.

Arcwave MIB Structure

The Arcwave MIB, named ArcwaveMib has the following structure:

Figure A-1 Arcwave MIB

ArcwaveMib

arcwaveControl fwDloadInformation realtimemonitorInfo

arcwaveHiorLoUpstream

arcwaveUpstreamFreq

arcwaveUpstreamAttentuation

arcwaveEIAInputchannel

arcwaveDownstreamAirFreq

arcwaveDownstreamEnable

arcwaveUpstreamEnable

arcwaveTitle

arcwaveSetQAMMode

arcwaveAlarmDestination

arcwaveClearalarm

arcwaveRealtimemonitor

arcwaveARCXtendId

arcwaveBOM

arcwaveAutoFreqSet

arcwaveCableIF

arcwaveAlarmMask

arcwaveTFTPs erverIP

arcwaveFilename

acwaveInitiateFirmwareUpgrade

fwversionNumber

hwversion

dcelock

dslock

dstxpower

uslock

powersupplyvoltage

txpowerlevel

transmittertemp

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Arcwave MIB Element Definitions

Element Object Identifier Address Description Values Syntax Access Status Default

productType arcwaveMIB 1 1.3.6.1.4.1.18482

arcwaveControl productType 12 1.3.6.1.4.1.8595.1.12

arcwaveHiorLoUpstream arcwaveControl 1 1.3.6.1.4.1.8595.1.12.1 This element tells the Hub

to tune to one of the two

upstream wireless carrier

pairs.

The upstream DOCSIS

channel is transmitted by

the ArcWave CPE

simultaneously on two

frequencies:

1 = arcwaveUpstreamFreq

+ DOCSIS upstream

frequency

2 = arcwaveUpstreamFreq

- DOCSIS upstream

frequency (in MHz)

This element is included

for possible future support

of frequency diversity. It

can also be used when

interference is experienced

one of the two channels.

1 = High

2 = Low

Integer Read/Write Current 1

arcwaveUpstreamFreq arcwaveControl 2 1.3.6.1.4.1.8595.1.12.2 This element contains the

upstream wireless

frequency (in MHz) that is

being used.

The BRM-3520 Cable

Modem programs the

AR300 Extender Module

with this value based on its

assigned upstream

DOCSIS channel. There is

a one-to-one relationship

between the upstream

wireless frequency and the

upstream DOCSIS

channel.

6.4 to 48 in

0.1

increments(i

n MHz)

Valid range

for AX1255

is 6.4 to 48

and for

AX1455 is 10

to 48

Integer32 Read Only Current N/A

ARCXTEND USER MANUAL – R1.4, ISSUE 4

arcwaveUpstreamAttentuation arcwaveControl 3 1.3.6.1.4.1.8595.1.12.3 This element sets the gain

on the upstream receiver.

The higher the value the

more attenuation is applied

to the upstream receiver.

Increasing the attenuation

reduces ingress noise onto

the cable plant, but also

decreasing the upstream

wireless range.

0 to 64 (in

dB) and 99.

When set to

99, the gain

will be set

automatically

Integer32 Read/Write Current 30dB

arcwaveEIAInputchannel arcwaveControl 4 1.3.6.1.4.1.8595.1.12.4 This element displays the

downstream channel that

is being used.

The BRM-3520 Cable

Modem programs the

AR300 Extender Module

with this value based on its

downstream channel.

See

Appendix A

for a listing of

EIA channel

numbers and

associated

frequencies

Integer32 Read-Only Current N/A

arcwaveDownstreamAirFreq arcwaveControl 5 1.3.6.1.4.1.8595.1.12.5 This element sets the

downstream wireless

channel to be used. (in

MHz)

For AX1255:

5729 5735

5741 5747

5759 5765

5771 5777

5783 5789

5795 5807

5813 5819

5825 5831

5837 5843

For AX1455:

5819 5825

5831 5837

5843 5849

5855 5861

5867 5873

Integer32 Read/Write Current

arcwaveDownstreamEnable arcwaveControl 6 1.3.6.1.4.1.8595.1.12.6 This element turns on the

downstream wireless

transmitter in the Hub.

1 = true

2 = false

Integer Read/Write Current 2

ARCXTEND USER MANUAL – R1.4, ISSUE 4

arcwaveUpstreamEnable arcwaveControl 7 1.3.6.1.4.1.8595.1.12.7 This element turns on the

upstream wireless receiver

in the Hub.

1 = true

2 = false

Read/W rite Current 2

arcwaveTitle arcwaveControl 8 1.3.6.1.4.1.8595.1.12.8 This element can be used

to assign a Hub name.

40 character

alpha

numeric

string

SnmpAdm

inString

Read/Write Current MAC

address of

ECM

arcwaveSetQAMMode arcwaveControl 9 1.3.6.1.4.1.8595.1.12.9 This element selects the

Downstream Power

Setting:

If “High” is selected, the

transmit power is set to 19

dBm. (For use with

AX1255-VM-90 and

AX1255-SM-90 Hubs

only.)

If “Medium” is selected, the

transmit power is set to 13

dBm.

If “Test” is selected, the

transmit power is set to 3

dBm.

0 = High

1 = Low

3 = Test

Integer Read/Write Current 1

arcwaveAlarmDestination arcwaveControl 10 1.3.6.1.4.1.8595.1.12.10 Sets the IP address of the

SNMP Traps Monitor.

SNMP traps are sent to

this address when control

mode is set to “HTTP”

IP Address IpAddress Read/Write Current

arcwaveClearalarm arcwaveControl 11 1.3.6.1.4.1.8595.1.12.11 Clears alarms 1 = true

2 = false

Integer Read/Write Current 2

arcwaveRealtimemonitor arcwaveControl 12 1.3.6.1.4.1.8595.1.12.12 Fetches Real Time

Monitoring information

from the ArcXtend Hub

1 = true

2 = false

Integer Read/Write Current 2

arcwaveARCXtendId arcwaveControl 13 1.3.6.1.4.1.8595.1.12.13 This element indicates the

ARCXtend Hub type.

01 = AX1255

02 – AX1455

Integer Read Only Current 01

arcwaveBOM arcwaveControl 14 1.3.6.1.4.1.8595.1.12.14 This element turns

PureBurst ingress noise

suppression on or off

0 = Off

1 = On

Integer Read/Write Current 1

arcwaveAutoFreqSet arcwaveControl 15 1.3.6.1.4.1.8595.1.12.15 This element enables or

disables the automatic

setting of

arcwaveEIAInputchannel

and

0 = disable

1 = enable

Integer Read/Write Current 1

ARCXTEND USER MANUAL – R1.4, ISSUE 4

arcwaveUpstreamFreq.

arcwaveCableIF arcwaveControl 16 1.3.6.1.4.1.8595.1.12.16 This element turns the

cable interface of the ECM

on or off. When the

interface is turned on, the

ECM will continually look

for a downstream cable

channel.

0 = On

1 = Off

Integer Read/Write Current 0

arcwaveAlarmMask arcwaveControl 17 1.3.6.1.4.1.8595.1.12.17 Sets the alarm mask for

the AR300 module.

All 0’s masks all alarms, all

F’s lets all alarms through,

values in between will

mask the corresponding

alarm.

0000 to

FFFF

SnmpAdm

inString

Read/Write Current FFFF

fwDloadInformation productType 14

arcwaveTFTPserverIP fwDloadInformation 1 1.3.6.1.4.1.8595.1.14.1 This element sets the IP

address of the TFTP

server that will be used for

firmware download.

Address

Read/W rite Current

arcwaveFilename fwDloadInformation 2 1.3.6.1.4.1.8595.1.14.2 This element sets the file

name of the firmware to be

downloaded to the Hub.

255

character

alpha

numeric

string

SnmpAdm

inString

Read/W rite Current 255a

acwaveInitiateFirmWareUpgrade fwDloadInformation 3 1.3.6.1.4.1.8595.1.14.3 This element tells the Hub

to initiate a firmware

upgrade.

1 = true

2 = false

Integer Read/Write Current 2

realtimemonitorInfo productType 15

fwversionNumber realtimemonitorInfo 1 1.3.6.1.4.1.8595.1.15.1 This element contains the

firmware version number

40 character

alpha

numeric

string

SnmpAdm

inString

Read-Only Current 255a

hwversion realtimemonitorInfo 2 1.3.6.1.4.1.8595.1.15.2 This element contains the

hardware version number

40 character

alpha

numeric

string

SnmpAdm

inString

Read-Only Current 255a

dcelock realtimemonitorInfo 3 1.3.6.1.4.1.8595.1.15.3 This element indicates the

state of the Hub

downstream DOCSIS

channel tuner. A”true” will

be displayed if the Hub is

tuned to a channel.

1 = true

2 = false

Integer Read/Write Current 2

dslock realtimemonitorInfo 4 1.3.6.1.4.1.8595.1.15.4 This element indicates the

status of the Hub

Transmitter Module.

A”true” will be displayed if

the module is active.

1 = true

2 = false

Integer Read/Write Current 2

ARCXTEND USER MANUAL – R1.4, ISSUE 4

dstxpower realtimemonitorInfo 5 1.3.6.1.4.1.8595.1.15.5 This element contains the

downstream transmit

power out of the Hub

Transmitter Module. (in

dBmv)

0 to 99 Integer Read-Only Current

uslock realtimemonitorInfo 6 1.3.6.1.4.1.8595.1.15.6 This element indicates the

status of the Hub Receiver

Module. A ”true” will be

displayed if the module is

active.

1 = true

2 = false

Integer Read-Only Current

powersupplyvoltage realtimemonitorInfo 7 1.3.6.1.4.1.8595.1.15.7 This element contains the

DC output voltage of the

Hub AC power supply as

read from the Extender

Module.

0 to 30 Integer Read-Only Current

txpowerlevel realtimemonitorInfo 8 1.3.6.1.4.1.8595.1.15.8 This element reports the

approximate upstream

transmit power level of the

hub. Its value is the

upstream transmit power

level of the ECM- 10). (in

dBmv)

0 to 99 Integer Read-Only Current

transmittertemp realtimemonitorInfo 9 1.3.6.1.4.1.8595.1.15.9 This element contains the

temperature at the surface

of the Hub transmitter

module in degrees Celsius.

-40 to 99 Integer Read-Only Current

Table A-1 Arcwave MIB Definitions and OID

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Arcwave Alarm Descriptions

Line

# Alarm Syntax Alarm Message Text

larm

Severity Customer Symptom Explanation of event / Corrective Action

What will the Customer

Experience

1AR300 System Lock Lost

The Unit has lost lock in the

Upstream or Downstream Critical

Modems on the ARCXtend

system lose sync

Clear alarms and/or reset power on unit & check if

condition goes away Lost of traffic, system outage

2AR300 Hub Dead The Unit is dead. Critical

Modems on the ARCXtend

system lose sync

The transmitter or receiver module or both stop

communicating with the control module/ Clear alarms

and/or reset power on unit & check if condition goes away Lost of traffic, system outage

AR300 Input voltage outside of

tolerance

Voltage level is either below or

above tolerance limits Major This alarm gets displayed

The voltage being supplied to the Unit is improper/ Check

voltage levels & clear alarm

No immediate impact but could result

in loss of traffic, system outage.

AR300 Downstream

(Transmitter) Over

Temperature

The Unit is operating above Max.

operating temperature Major This alarm gets displayed

The Unit is operating above Max. operating temperature/

Check operating temperature, clear alarm & switch the

unit off if condition does not go away.

No immediate impact but could result

in loss of traffic, system outage.

5AR300 DCE Unlocked or Error The Control module has lost lock Critical

Modems on the ARCXtend

system lose sync

The Control module has lost lock/ Clear alarms and/or

reset power on unit & check if condition goes away Lost of traffic, system outage

AR300 Upstream (Receiver)

Unlocked or Error" The Upstream module has lost lock. Critical

Modems on the ARCXtend

system lose sync

The Upstream module has lost lock/ Clear alarms and/or

reset power on unit & check if condition goes away Lost of traffic, system outage

Downstream(Transmitter)

Unlocked or Error

The Downstream module has lost

lock. Critical

Modems on the ARCXtend

system lose sync

The Downstream module has lost lock/ Clear alarms

and/or reset power on unit & check if condition goes away Lost of traffic, system outage

Local Parameter Modification

Notification

There has been a change in the

parameters on the control module Normal

A change in parameters is

made via CLI or by the

control module

There has been a change in the parameters on the

control module/ Do nothing - it's an informative alarm

No impact, informational only. Note

changes made via CLI may be reset

upon reboot of unit.

Table A-2 Arcwave Alarm Definitions

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Arcwave Traps

Unique Trap OID

Syntax

Type Description Enumeration(s)/Example(s)

Integer Alarm ID 1

String Alarm Description System Lock Lost

1.3.6.1.4.1.18482.1.16.0.1

Alarm Action Critical

Integer Alarm ID 2

String Alarm Description Hub Dead

1.3.6.1.4.1.18482.1.16.0.2

Alarm Action Critical

Integer Alarm ID 3

String Alarm Description

Input voltage outside of

tolerance

1.3.6.1.4.1.18482.1.16.0.3

Alarm Action Major

Integer Alarm ID 4

String Alarm Description

Downstream (Transmitter)

Over Temperature

1.3.6.1.4.1.18482.1.16.0.4

Alarm Action Major

Integer Alarm ID 5

String Alarm Description DCE Unlocked or Error 1.3.6.1.4.1.18482.1.16.0.5

Alarm Action Critical

Integer Alarm ID 6

String Alarm Description

Upstream (Receiver)

Unlocked or Error

1.3.6.1.4.1.18482.1.16.0.6

Alarm Action Critical

Integer Alarm ID 7

String Alarm Description

Downstream(Transmitter)

Unlocked or Error

1.3.6.1.4.1.18482.1.16.0.7

Alarm Action Critical

Integer Alarm ID 8

String Alarm Description

Local Parameter Modification

Notification

1.3.6.1.4.1.18482.1.16.0.8

Alarm Action Normal

Table A-3 Arcwave Traps

Sample Trap Format

Here is a capture of trap #2:

No. Time Source Destination Protocol Info

3 4.067514 192.168.2.74 10.10.10.6 SNMP TRAP-V1

Frame 3 (88 bytes on wire, 88 bytes captured)

Ethernet II, Src: 00:30:b8:80:2b:1f, Dst: 00:0d:56:6e:d6:d7

Internet Protocol, Src Addr: 192.168.2.74 (192.168.2.74), Dst Addr: 10.10.10.6 (10.10.10.6)

ARCXTEND USER MANUAL – R1.4, ISSUE 4

User Datagram Protocol, Src Port: 1029 (1029), Dst Port: snmptrap (162)

Simple Network Management Protocol

Version: 1 (0)

Community: public

PDU type: TRAP-V1 (4)

Enterprise: 1.3.6.1.4.1.18482.1.16 (iso.3.6.1.4.1.18482.1.16)

Agent address: 0.0.0.0 (0.0.0.0)

Trap type: ENTERPRISE SPECIFIC (6)

Specific trap type: 2

Timestamp: 34600

ARCXTEND USER MANUAL – R1.4, ISSUE 4

arcwaveEIAInputchannel VALUES

EIA Ch. Freq. in MHz EIA Ch. Freq. in MHz EIA Ch. Freq. in MHz EIA Ch. Freq. in MHz

=======================================================================================================

95 93

96 99

97 105

98 111

99 117

14 123

15 129

16 135

17 141

18 147

19 153

20 159

21 165

22 171

7 177

8 183

9 189

10 195

11 201

12 207

13 213

23 219

24 225

25 231

26 237

27 243

28 249

29 255

30 261

31 267

32 273

33 279

34 285

35 35 291

36 297

37 303

38 309

39 315

40 321

41 327

42 333

43 339

44 345

45 351

46 357

47 363

48 369

49 375

50 381

51 387

52 393

53 399

54 405

55 411

56 417

57 423

58 429

59 435

60 441

61 447

62 453

63 459

64 465

65 471

66 477

67 483

Table A-4

arcwaveEIAInput

channel Values

68 489

69 495

70 501

71 507

72 513

73 519

74 525

75 531

76 537

77 543

78 549

79 555

80 561

81 567

82 573

83 579

84 585

85 591

86 597

87 603

88 609

89 615

90 621

91 627

92 633

93 639

94 645

100 651

101 657

102 663

103 669

104 675

105 681

106 687

107 693

108 699

109 705

110 711

111 717

112 723

113 729

114 735

115 741

116 747

117 753

118 759

119 765

120 771

121 777

122 783

123 789

124 795

125 801

126 807

127 813

128 819

129 825

130 831

131 837

132 843

133 849

134 855

135 861

136 867

137 873

138

ARCXTEND USER MANUAL – R1.4, ISSUE 4

CABLE MODEM INITIALIZATION

The sequence numbers shown in Figure B-1 are explained in Table B-1, which appears after

the illustration. The cable modem will complete all the steps in this flowchart each time it needs

to reestablish ranging and registration with the CMTS.

ARCXTEND USER MANUAL – R1.4, ISSUE 4

Sequence Event Description

Scan for a downstream

channel and

establish synchronization

with the

CMTS.

The cable modem acquires a downstream channel

from the CMTS and saves the last operational

frequency in non-volatile memory. The cable

modem tries to reacquire the saved downstream

channel the next time a request is made.

Note An ideal downstream signal is one that

synchronizes QAM symbol timing, FEC framing,

MPEG packetization, and recognizes downstream

sync MAC layer messages.

2 Obtain upstream channel

parameters.

The cable modem waits for an upstream channel

descriptor (UCD) message from the CMTS. The

UCD provides transmission parameters for the

upstream channel.

3 Start ranging for power

adjustments.

The ranging process adjusts the cable modem’s

transmit power.

4 Establish IP connectivity.

The cable modem sends a DHCP request to

obtain an IP address, which is needed for IP

connectivity. The DHCP response also includes

the name of a file that contains additional

configuration parameters, the TFTP server’s

address, and the Time of Day (TOD) server’s

address.

5 Establish the time of day.

The cable modem accesses the TOD server for

the current date and time, which is used to create

time stamps for logged events (such as those

displayed in the MAC log file).

6 Establish security.

Keys for privacy are exchanged between the cable

modem and the CMTS.

7 Transfer operational

parameters.

After the DHCP and security operations are

successful, the cable modem downloads

operational parameters from a configuration file

stored on the cable company’s TFTP server.

Comply with baseline

privacy.

If the software image running on the cable modem

includes baseline privacy, link level encryption

keys are exchanged between the CMTS and the

cable modem.

Enter the operational

maintenance state.

As soon as the cable modem has successfully

completed above sequence, it enters operational

maintenance state.

Table B-1 Cable Modem Initialization Steps

Arcwave AX1255 ArcXTEND Wireless Hub Access Point User Manual 41FF9EC4 410D 10B8EE

Arcwave, Inc. ArcXTEND Wireless Hub Access Point 41FF9EC4 410D 10B8EE

Users Manual

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