Arcwave AX145500 ArcXtend TM User Manual 43136E50 74ED 108F3E
Arcwave, Inc. ArcXtend TM 43136E50 74ED 108F3E
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User Manual
Copyright 2005 Arcwave, Inc.
ARCXtend Wireless Plant Extension
Solution
5.8 GHz Operation
User Manual
R1.0 Issue 1
P/N: Preliminary
Arcwave, Inc.
910 Campisi Way, Suite 1C,
Campbell, CA 95008 USA,
Phone: 408-558-2300
www.arcwaveinc.com
ARCXTEND 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. ii
REVISION HISTORY
ISSUE # AUTHOR CHECK OUT CHECK IN COMMENTS
1.0 CM 08/29/2005
ARCXTEND 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. iii
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.
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.
Part 15, Section 15.21 Warning
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: TBD
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Copyright 2005 Arcwave, Inc. iv
RF Safety Warning:
To insure compliance with FCC recommended General Population/Uncontrolled exposure limits
the ARCXtend Hub and CPE must be installed a minimum of one foot from areas frequented by
the general population.
To insure compliance with FCC recommended Occupational/Controlled exposure limits, field
engineers and technicians should maintain a minimum working distance of six inches, as
measure from the front of the units to the front of their bodies, from the front of the Hub and
CPE. For working distance inside six inches, RF exposure should be limited to an average of 30
minutes at a time. All Arcwave equipment, however, has been designed to allow installation and
maintenance at a range well within FCC RF exposure levels.
For further information, please refer to:
http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet56/oet56e4.pdf.
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.
© Arcwave, Inc. 2005. Arcwave, Inc. 910 Campisi Way, Campbell, Ca, 95008
http://www.arcwaveinc.com
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Copyright 2005 Arcwave, Inc. v
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 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 9
Downstream Signal Attenuators 10
ARCSmartTM 2.1 Intelligent Network Management 10
DOCSIS 2.0 Compliant ECM 10
Watchdog Timer 10
SNMP-compliant Arcwave Enterprise MIB 11
HTTP-based user interface 12
ARCSmart firmware upgrade 12
Advanced Network Management Features 12
Plug-n-Play 12
Downstream frequency agility 12
Settable Hub Transmit Power 12
PureBurst Ingress Noise Suppression 13
PRE-DEPLOYMENT PLANNING 14
Hub Site Selection 14
Line of Site 14
Range 14
Equipment Location 15
Checking for Upstream Interference 15
CPE Site Selection 16
Height and Location 16
Checking for Interference 17
Channel Plan 17
Downstream Configuration 17
Downstream Block Diagram 17
Upstream Configuration 18
Upstream Block Diagram 18
ARCXtend Multiple Hub Configurations 19
IP Network Preparation 19
Hub’s Default IP Address 19
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Cable Network IP Address 19
ECM Configuration File 20
TCP/IP Port Filtering 20
Hub Electrical Interface 20
AC Powering and Surge Protection 20
DC Powering 21
RF Signal Power Level and Quality 21
CPE Electrical Interface 21
AC Powering and Surge Protection 21
Lightning Protection 21
INSTALLATION AND COMMISSIONING 22
Prerequisites 22
Link Budget 22
Personnel 22
Equipment and Materials 22
Equipment Ordering and Staging 23
Hub installation & commissioning 24
Setup the Hub Power and RF Connection 24
Secure the Hub to the Strand 24
Establish a Local Connection to the Hub 25
Verify the Embedded Cable Modem has achieved operational maintenance state. 25
Set up and verify the Hub’s cable plant interface 25
Set up and verify the Hub’s wireless interface 26
Set the Hub Management Mode 26
CPE installation 26
Affix the CPE mounting mast 27
Install the Coaxial Cable and Ground Connection 27
Install the power adaptor and DC inserter 29
CPE Alignment 30
Connect the signal strength meter 30
Verify CPE output signal at input to cable modem 31
Cable Modem Installation 32
If the cable modem registers with the network 32
If the cable modem doesn’t register with the network 33
Link Verification 35
Downstream path measurements 35
Upstream path measurements 35
USER INTERFACE 37
Accessing the Interface 37
Cable Status Page 37
System Info Page 39
General Information 39
Cable Modem IP Information 40
Attached Device 40
Signal Page 41
Arcwave MIB 41
Upstream Signal 42
DOCSIS 1.0 Class of Service Parameters 42
Event Log Page 42
System Event Log 43
Maintenance 45
Arcwave MIB Maintenance 45
Arcwave MIB page 47
Arcwave MIB Maintenance 47
Firmware Download Information 50
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Arcwave MIB Real Time Monitor Information 50
HUB UPGRADE PROCEDURE 52
Via HTTP Interface 52
Via SNMP Interface 52
Via ARCNet 52
ARCXTEND ACCESSORIES 53
SPECIFICATIONS 54
AX1455 Network Hub 54
AX3255 Customer Premise Antenna / Transceiver (CPE) 55
Environment Specifications 56
ARCWAVE ENTERPRISE MIB R2.1 57
Arcwave Enterprise MIB R2.1 Structure 57
Arcwave Enterprise 2.1 MIB Element Definitions 59
Arcwave Alarm Descriptions 64
Arcwave Traps 66
Sample Trap Format 66
arcwaveEIAInputchannel VALUES 68
CABLE MODEM INITIALIZATION 69
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FIGURES
Figure 2-1: ARCXtend Solution Architecture .............................................................................. 2
Figure 2-2: ARCXtend Solution Elements .................................................................................. 3
Figure 2-3: Wireless Drop .......................................................................................................... 5
Figure 2-5 AX1455-SM (on left) and AX1455-VM Connectors (on right)..................................... 6
Figure 2-6: CPE RF Connector .................................................................................................. 9
Figure 3-1: Fresnel Zone Clearance Requirement ................................................................... 14
Figure 3-2: CPE Site Survey Setup.......................................................................................... 16
Figure 3-3: ARCXtend Downstream Block Diagram ................................................................ 17
Figure 3-4: ARCXtend Upstream Block Diagram..................................................................... 18
Figure 4-1: Hub Installation Diagram........................................................................................ 24
Figure 4-2: CPE Mounting Diagram ........................................................................................ 27
Figure 4-3: CPE Wiring Diagram............................................................................................. 28
Figure 4-4: Grounding device at subscriber premises .............................................................. 29
Figure 4-5: Power Inserter and AC/DC adaptor........................................................................ 30
Figure 4-6: AR100 Signal Strength Meter (SSM)...................................................................... 30
Figure 5-1: Hub login screen....................................................................................................37
Figure 5-2: Cable Status page ................................................................................................. 37
Figure 5-3: System Info page ................................................................................................... 39
Figure 5-4: Signal Page ........................................................................................................... 41
Figure 5-5: System Event Log page ......................................................................................... 42
Figure 5-6: Maintenance Page ................................................................................................. 45
Figure 5-7: Arcwave MIB page - Top........................................................................................ 47
Figure 5-8: Arcwave MIB page – Bottom.................................................................................. 50
Figure 6-1: AR100 Signal Strength Meter................................................................................. 53
Figure A-1 Arcwave MIB Structure........................................................................................... 57
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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................................................................................................ 8
Table 2-4: CPE Models............................................................................................................ 10
Table 2-5 SNMP Community String (Private), Read-Write Access........................................... 11
Table 2-6 SNMP Community String (Public), Read-Write Access ............................................ 11
Table 3-1: AX1455-SM-60 Strand Mounted Network Hub (18 ft off the ground) ....................... 14
Table 3-2: AX1455-SM-25 Strand Mounted Network Hub (18 ft off the ground) ....................... 15
Table 3-3: Upstream Channel Mapping.................................................................................... 16
Table 3-4: Downstream Hub to CPE Channel Mapping............................................................ 17
Table 4-1: Installation Equipment & Materials .......................................................................... 23
Table 4-2: DS power level at CPE............................................................................................ 31
Table 4-3: DS received power level at the Cable Modem......................................................... 32
Table 4-4: US transmit power level troubleshooting ................................................................. 33
Table 4-5: Cable modem registration ....................................................................................... 34
Table 4-6: Downstream path measurements............................................................................ 35
Table 4-7: Upstream Path Measurements................................................................................ 36
Table 5-1: ARCSmart Event Messages.................................................................................... 45
Table 7-1: AX1455 Specifications ............................................................................................ 54
Table 7-2: AX3255 Specifications ............................................................................................ 55
Table 7-3 Environmental Specifications ................................................................................... 56
Table A-1 Arcwave MIB Definitions and OID............................................................................ 63
Table A-2 Arcwave Alarm Definitions....................................................................................... 65
Table A-3 Arcwave Traps.........................................................................................................66
Table B-1 Cable Modem Initialization Steps............................................................................. 70
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Copyright 2005 Arcwave, Inc. 1
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.
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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.
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:
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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
PC
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
PC
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
up converts it to one of the six available wireless carriers in the range 5.8 GHz 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 down converts it to an RF channel in the range 90 to
150 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 up
converts it to a fixed frequency in the range 5.8 GHz license free band.
The Hub receives the wireless signal and down converts 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 0 to +30 dBmV while providing optimum wireless transmit power. The hub wireless
transmitter power, determined by the Downstream Transmit Power setting, can be set for on
of three modes: High, Medium or Test mode.
Note: The “High” power setting is for use with the AX1455-SM-Network Hub. Use of the “High”
power setting with the AX1455-SM-25 cancels the FCC certification and voids the user’s
authority to operate the unit in the 5.8 GHz band.
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.
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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 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
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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 the cable plant.
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.
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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 MSO’s 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 AX1455-SM (on left) and AX1455-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 upstream RF
signal.
LED RJ-45
RF Input
Monitor Port
Ground
Stud
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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
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. (AX1455-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 beam width (i.e. “90”, for 90-Degree horizontal beam
width. “60“, for 60-degree horizontal beam width and “25”, for 20-Degree horizontal
beam width).
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
Beam
width
64
QAM
256 QAM
Bidirectional Systems
AX1455-
SM-60
5813– 5843
MHz
5725 -
5742 MHz
Horizontal 60
Degrees
1 Mile ½ Mile
AX1455-
SM-25
5813– 5843
MHz
5725 -
5742 MHz
Horizontal 20
Degrees
2 Miles ¾ Mile
Upstream Only, No remote monitoring. If remote monitoring is
desired use a standard AX1455-VM-90.
QPSK 16 QAM 64
QAM
AX1405-
SM-60
5725 -
5742 MHz
Horizontal 60
Degrees
8 Miles 4 Miles 2
Miles
Table 2-2: Hub Configurations
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Hub Mounting Kits
Works
with
Model Description Image
Standard ARCXtend Strand
Mount Kit
Used to mount an
AX1455-SM to a
standard strand cable
Includes integrated
mounting bracket
providing 360° vertical
and +/- 30° horizontal
adjustment for rapid
and flexible antenna
alignment.
AX1455-
SMA
ARCXtend Strand
Mount Adaptor Kit,
Network Hub
Used to mount an
AX1455-SM in the
horizontal position on
a 1-1/4 to 2-3/8 O.D.
pipe mount
AX1455-
SM
AX1455-
PMK
ARCXtend Pole Mount
Kit, Network Hub
Includes the AX1455-
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
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ARCXtend CPE
The CPE is small footprint weatherproof radome 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.
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 beam width (“90”, for 90-Degree Horizontal beam width).
The standard CPE models are:
Upstream Range
Model
number
Downstream
Frequency
Band
Upstream
Frequency
Band
Mounting
Orientation
Transmit
Antenna
Beam width QPSK 16
QAM
64
QAM
AX1455-
VM-90
5813– 5843
MHz
5725 - 5742
MHz
Vertical 90 Degrees 8 Miles 4 Miles 2 Miles
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Table 2-4: CPE Models
The standard CPE accessories are:
Power Packs and DC Inserters
• AX1455-PS-18: 120 Vac 60 Hz/18 Vdc adaptor and DC Inserter
Downstream Signal Attenuators
• AX32155-ECF-10: 10 dB Downstream Attenuator for attenuating the DS signal level
without affecting the US signal level
• AX1455-ECF-20: 20 dB Downstream Attenuator for attenuating the DS signal level
without affecting the US signal level.
ARCSmartTM 2.1 Intelligent Network Management
Arcwave’s ARCSmart intelligent network management combines an embedded DOCSIS 2.0
compliant cable modem, SNMP-compliant Arcwave Enterprise MIB R2.1 (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
pre-scale 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.
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Copyright 2005 Arcwave, Inc. 11
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 Support section of the Arcwave website, www.arcwaveinc.com.
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
docsDevNmAcces
sStatus
1.3.6.1.3.69.1.2.1.7.1 Integer 4
docsDevNmAcces
sIp
1.3.6.1.3.69.1.2.1.2.1 IpAddress 255.255.255.255 (means any NMS
station)
docsDevNmAcces
sIpMask
1.3.6.1.3.69.1.2.1.3.1 IpAddress 0.0.0.0
docsDevNmAcces
sCommunity
1.3.6.1.3.69.1.2.1.4.1 OctetString private (the name you want)
docsDevNmAcces
sControl
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
docsDevNmAcces
sStatus
1.3.6.1.3.69.1.2.1.7.1 Integer 4
docsDevNmAcces
sIp
1.3.6.1.3.69.1.2.1.2.1 IpAddress 255.255.255.255 (means any NMS
station)
docsDevNmAcces
sIpMask
1.3.6.1.3.69.1.2.1.3.1 IpAddress 0.0.0.0
docsDevNmAcces
sCommunity
1.3.6.1.3.69.1.2.1.4.1 OctetString public (the name you want)
docsDevNmAcces
sControl
1.3.6.1.3.69.1.2.1.5.1 Integer 2
Table 2-6 SNMP Community String (Public), Read-Write Access
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Copyright 2005 Arcwave, Inc. 12
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:
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 (high power), Medium (high linearity) or Test
(short range)
Note: The “High” power setting is for use with the AX1455-SM-60 Network Hubs. Use of the
“High” power setting with the AX1455-SM-25 cancels the FCC certification and voids the
operator’s authority to operate the unit in the 5.8 GHz band.
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Copyright 2005 Arcwave, Inc. 13
PureBurst Ingress Noise Suppression
PureBurst effectively functions as a door. When there is no wireless upstream signal being
received by 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. 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.
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Copyright 2005 Arcwave, Inc. 14
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 models of Hubs are given in Tables 3-1 and 3-2.
Table 3-1: AX1455-SM-60 Strand Mounted Network Hub (18 ft off the ground)
Modulation Range Arc Area
Downstream Wireless Link
64 QAM (DS)
256 QAM (DS)
2 miles
¾ mile
3.1 miles
0.3 miles
3.14 sq-miles
0.13 sq-miles
CPE
CPE
Network
Network
Hub
Hub
r
r
d
d
Fresnel Zone must
Fresnel Zone must
be clear of
be clear of
obstructions
obst ruct ions
12 feet9 ft.6 ft.4 ft.3 ft.
r
2 miles1 mile½ mile1,000 ft. 500 ft.
d
CPE
CPE
Network
Network
Hub
Hub
r
r
d
d
Fresnel Zone must
Fresnel Zone must
be clear of
be clear of
obstructions
obst ruct ions
12 feet9 ft.6 ft.4 ft.3 ft.
r
2 miles1 mile½ mile1,000 ft. 500 ft.
d
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Copyright 2005 Arcwave, Inc. 15
Table 3-2: AX1455-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
½ mile
3.1 miles
0.8 miles
3.14 sq-miles
0.19 sq-miles
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. .
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 Upstream Interference
ARCXtend maps the upstream DOCSIS channel to a frequency between 5,725 MHz and 5,742
MHz. As shown in Table 3-3 the mapping is fixed and based solely on the frequency of the
upstream DOCSIS channel.
Upstream DOCSIS
Channel
Upstream Wireless
Channel
Upstream DOCSIS
Channel
Upstream Wireless
Channel
center (MHz) center (MHz) center (MHz) center (MHz)
10.2 5730.2 29.4 5749.4
13.4 5733.4 32.6 5752.6
16.6 5736.6 35.8 5755.8
19.8 5739.8 39.0 5759.0
23.0 5743.0 42.2 5762.2
26.2 5746.2
1 A network map with street and building information is ideal for this activity.
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Copyright 2005 Arcwave, Inc. 16
Table 3-3: Upstream Channel Mapping
The upstream wireless channel is centered at 5,720 MHz plus the upstream DOCSIS channel
frequency: e.g. Upstream Channel 29.5 MHz is transmitted at 5,749.5 MHz.
As part of the site selection process check for interference at the wireless frequency carrying the
DOCSIS upstream channel. If interference is present you will need to use a different DOCSIS
upstream channel, if possible, or move the Hub to a different 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,
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 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.
Figure 3-2: CPE Site Survey Setup
Telescoping
Mast
CPE
LNB
CPE Wall
Mount Adaptor
AR100
Signal
Strength
Meter
RX
Power
Inserter
Spectrum
Analyzer
RF Power To
A
M
p
RF TO
TV
Power in
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Copyright 2005 Arcwave, Inc. 17
Tap
CATV Plant
ARCXtend
Subscriber
Transceiver
Cabl e 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
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.
Hub Downstream Wireless Carrier Channel CPE Downstream RF Channel
5813 MHz 99 MHz
5819 105
5825 111
5831 117
5837 123
5843 99 MHz
Table 3-4: Downstream Hub to CPE Channel Mapping
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-4 in Appendix A provides a list of these channels and their
corresponding center frequencies.
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Copyright 2005 Arcwave, Inc. 18
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
The Downstream DOCSIS channel can mapped to any one of the available downstream
wireless frequencies. Each downstream wireless channel is down converted by the CPE to a
fixed frequency as given in Table 3-4. e
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 wireless frequency. Note that the
downstream CATV 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 3-4. 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 10 MHz and 42 MHz. Any upstream channel frequency between
10 and 42 MHz will work with ARCXtend.
Referring to Figure 3-4 from right to left:
The ARCXtend Subscriber Transceiver (CPE) up converts and transmits the entire cable
upstream band.
The Hub receives only the selected wireless upstream channel. The upstream wireless channel
is centered at 5,720 MHz plus the upstream DOCSIS channel frequency: e.g. Upstream
Channel 29.5 MHz is transmitted at 5,749.5 MHz.
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Copyright 2005 Arcwave, Inc. 19
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 then there must he at least 25 dB separation for 64 QAM and 30 dB
separation for 256 QAM operation between the two CPE’s.
If this signal separation can’t be achieved then you must use different DOCSIS upstream
channels for each Hub. This means that each CM transmit frequency will be passed upstream
into the CATV plant.
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.
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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 prior to installation to confirm the 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 plant power. The internal power supply provides a regulated 24 Vdc output
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Copyright 2005 Arcwave, Inc. 21
over an ac input between 50 Vac and 110 Vac 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.
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.
RF Signal Power Level and Quality
The Hub requires a downstream path RF power level at the input RF port of between 0 dBmV
and +30 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 18 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 300 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.
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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/ Multiple Hub monitoring and configuration
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Copyright 2005 Arcwave, Inc. 23
Serial & Ethernet Ports
Material Source Use
ARCXtend Network
Hub
Arcwave
AX1455-SM-25, -60 or -90 and
AX1455-VM-90
Wirless interface to cable network
on plant side
ARCXtend CPE
Arcwave
AX1455-VM-12
Wirless interface to cable network
on customer side
ARCXtend CPE Power
Adaptor and DC
Inserter
Arcwave
AX1455-PS-12
Powering CPE
ARCXtend Network
Hub Management Kit,
M/N
Arcwave
AX1455-IFK-232
Hub Interface Cable Kit
10dB and 20dB low
pass attenuators
Arcwave
AX1455-ECF-10
AX1455-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.
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Copyright 2005 Arcwave, Inc. 24
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 is between 50 Vac and 110 Vac nominal.
2. Verify that the input downstream RF signal level is between 0 dBmV and +30 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.
D
A B
F
C
G
E
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 shown 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
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Copyright 2005 Arcwave, Inc. 25
is 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.
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
via an Internet Explorer 5.x or higher with the IP address set to 192.168.100.1.
Note: If your lap top Ethernet Port alternates between “connected” and “not connected” you
should reconfigure its LAN port speed and duplex setting from Auto to 10Mbps.
The hub should respond with the “Enter Network Password” prompt.
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 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.
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Set up and verify the Hub’s wireless interface
)Referring to 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 AX1455-SM-90, AX1455-SM-60, and AX1455-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 and 64 QAM modulation with links less than or equal to ¼ mile.
c. Low for use with all model Hubs at links less than 500 feet.
Note: The “High” power setting is for use with the AX1455-SM-90, AX1455-SM-60 and AX1455-
VM-90 Network Hubs. Use of the “High” power setting with the AX1455-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 ECM is operational, the Upstream
Attenuation level is set automatically based on the upstream transmit power level of the
ECM. If the ECM 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.
Set the Hub Management Mode
)Referring to the Administration table on the Maintenance page and Arcwave MIB page of
the user interface:
1. Enter Title, if desired, otherwise it defaults to the MAC address of the ECM.
2. 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 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.
3. Set the Alarm Destination IP address, id desired.
CPE installation
)Install the mounting hardawre (e.g. non-penetrating roof mount, eaves mount) and wiring
per the manufacturer’s recommended procedures and in accordance with the National
Electric Code and local ordinances.
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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 4-2, 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.
Mounting bracket (included)
Elevation alignment bolt
F-connector (before taping)
Pipe
Side/side alignment bolt
Figure 4-2: CPE Mounting Diagram
Install the Coaxial Cable and Ground Connection
)Install the coaxial cable and ground connection as shown in Figure 4-3:
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Copyright 2005 Arcwave, Inc. 28
Figure 4-3: CPE Wiring Diagram
)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.
2 Coax-Seal is available from Universal Electronics, Inc. Phone: 828-293-2222.
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Copyright 2005 Arcwave, Inc. 29
)Mount a CATV system standard grounding device in Figure 4-4 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 4-4: Grounding device at subscriber premises
)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
“RF + PWR” F female connector of the power inserter.
Install the power adaptor and DC inserter
)Install the DC inserter as show in Figure 4-5. Connect the power adaptor to the DC inserter
as show in Figure 4-3 and figure 4-5. Plug the power adaptor into a surge protected AC
power receptacle. Note the AC Power Pack must be within 300 feet of the CPE.
3 The National Electric Code, sections 820-33 and 820-40, describes this requirement in detail.
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Figure 4-5: 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 4-6) or equivalent signal strength meter .
Figure 4-6: AR100 Signal Strength Meter (SSM)
)Align the CPE for maximum signal strength as follows:
To CPE
To Cable Modem
To Power
Pack
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Copyright 2005 Arcwave, Inc. 31
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 (AX3255-ECF-10) or 20
dB (AX3255-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.
Verify 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.
Verify integrity of in-building
cabling and power.
Make sure CPE Power
Adaptor and DC inserter are
installed properly.
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.
Table 4-2: DS power level at CPE
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Cable Modem Installation
)Connect the cable modem to the modem side of the DC power inserter as shown in Figure
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 DS received power level is too low
If the DS received power level is too high
install one or more 10 dB (AX3255-ECF-10)
or 20 dB (AX3255-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 4-3: DS received power level at the Cable Modem
Verify the upstream signal level
)Using the cable modem’s diagnostic interface, check the upstream signal (US) level is within
the desired operating range.
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
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.
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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.
Table 4-4: 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 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
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.
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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 4-5: Cable modem registration
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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 4-6: 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.
Check for interference in the 5.250
to 5.350 GHz band. If interference
is present, try changing the
upstream frequency HI/LO setting.
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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 4-7: Upstream Path Measurements
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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, Cable Status,
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
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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. It will
adjust the upstream tranmist power such that the CMTS
receives the signal at the desired power level.
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
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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
<ARCXtend 1255>
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
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Copyright 2005 Arcwave, Inc. 40
Ethernet side. And need to assign the MAC address with
corresponding 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.
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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.
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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
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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
Clear Log Clear log clears the System Event Log
.
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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
No immediate
impact but
could result in
loss of traffic,
system outage.
Warning: The Hub is
operating within 10C of its
maximum operating
temperature.
The Unit is
operating near
its maximum
operating
temperature
Major This alarm
gets
displayed
The Unit is operating
near its maximum
operating
temperature. Check
temperature and
clear alarm. If
problem persists
consider adding a
sun shield to unit.
No 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
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.
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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.
Arcwave MIB Maintenance
New User Name New User Name
Old Password Old User Password.
New Password New User Password.
Confirm Password Re-enter New User Password.
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
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interface.
If the Control via SNMP is chosen, then the Hub can be
managed remotely over the cable network using SNMP.
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.
Reset to Factory Defaults Select Apply to return the AR300 MIB settings to the factory
default values listed below.
Element Default Value
============ ====================
Username admin
Password arcwave
Control Mode SNMP
Title <MAC address of BRM-3520>
Cable Interface Control Enable
Automatic Frequency Set Enable
Local Ethernet Interface Control Enable
Network Access Disable
Select Upstream Band High
Upstream Attenuation 99
Downstream Enable False
Upstream Enable False
Select Downstream Power Low
Alarm Mask FFFF
PureBurst ON
TFTP Server IP Address 0.0.0.0
Firmware Upgrade Filename <blank>
Reset ARCXtend Select Apply to reset the AR300 program counter to one.
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Arcwave MIB page
Figure 5-7: Arcwave MIB page - Top
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, AX1455, AX1455 Standard Band (5.8
GHz), AX1455 Extended Band (5.8 GHz), AX1555 (future),
AX1655 (Enhanced) and AX1755 (future). This parameter is
used internally by ARCSmart to customize the user interface
based on the Hub type.
Cable Interface Control Chose “Enable” to turn-on the RF interface of the ECM and
“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 “Disable” setting will prevent the ECM from
continually scanning for a downstream channel, when none
is present. The default setting is “Enable”
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When Cable Interface Control is set to “Disable”, Network
Access is set to “Disable” and Upstream Attenuation can not
be set to “99”, automatic mode.
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”.
Local Ethernet Interface Chose “Enable” to allow local connection to the Hub via the
RJ-45 connector. Chose “Disable” to disable the RJ-45
connection and prevent anyone from connecting locally to
the Hub.
When Local Ethernet Interface is set to “Disable”, Network
Access is also set to “Disable”.
Network Access Chose “Enable” to allow a locally connecting computer to
obtain an IP address, via DHCP, from the head end server
and to access the cable IP network.
Chose “Disable” to prevent a locally connected computer
from accessing the cable IP network. The locally connected
computer will be assigned a default IP address in the
192.168.100.0/24 network.
Select Upstream Band Not used with AX1455.
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.
If “99” is entered, ARCSmart will automatically set the
attenuation based on the upstream channel transmit power
out of the ECM.
If a number in the valid range from 0 to 64 is entered, the
attenuation is set to that value.
This parameter is used to increase or decrease the upstream
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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 AX1455 model Hubs are: 5,813, 5,819,
5,825, 5,831, 5,837 and 5,843 (in MHz).
Downstream Enable Chose “TRUE” to turn on the downstream wireless
transmitter and “False” to turn it off. The default setting is
“False”.
Upstream Enable Chose “TRUE” to turn on the upstream wireless receiver and
“FALSE” to turn it off. The default setting is “False”.
Select Downstream Power Chose the downstream wireless transmitter power setting:
High, Medium or Test
Alarm Mask The alarm mask corresponds to the hex number, which when
translated into a binary number gives an 8 digit number. The
position of a digit ‘1’, in that number, would enable the
corresponding alarm and a digit ‘0’ would disable the
corresponding alarm. All 0’s masks all alarms, all F’s lets all
alarms through, individual alarms are respresented as
follows:
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
Example: If the user wanted alarms “System Lock Lost, Input
voltage outside of tolerance, DCE Unlocked or Error and
Local Parameter Modification Notification” turned on & the
rest turned off, he would have to set the alarm mask to 0095
(Hex), which corresponds to 10010101 (Binary). The bits that
correspond to the alarms we want turned on have been set
to 1 & the rest have been set to 0.
Alarm Destination Enter the IP address where SNMP traps are to be sent by
the Hub.
Real time monitor Click on the “Apply” button to refresh the Real Time Monitor
ARCXTEND 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. 50
display.
PureBurst Chose “On” to enable PureBurst and “Off” to disable
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. Default
setting is “On”.
Figure 5-8: Arcwave MIB page – Bottom
Firmware Download Information
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 (AR300
Module) 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 AR300 module hardware revision
number.
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Copyright 2005 Arcwave, Inc. 51
DCE Lock: Displays the status of the PLL (Phase Lock Loop) in the
AR300 module. It will display “TRUE” if the Hub if the PLL is
working properly and “FALSE” if it is not.
Transmitter 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.
Transmitter Power Level: Displays the power level of the Hub wireless transmitter into
the antenna.
Transmitter Temperature: Displays the temperature in degrees Celsius at the surface of
the Hub wireless transmitter module.
Receiver 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 AR300 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.
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Copyright 2005 Arcwave, Inc. 52
HUB UPGRADE PROCEDURE
Via HTTP Interface
1. Upgrade ECM software to new version using your normal cable modem upgrade procedure.
Verify empty pull down menus in Arcwave MIB page.
2. Upgrade AR300 (ARCSmart) firmware using the Firmware Download utility on the Arcwave
MIB page.
3. Select "Reset To Factory Defaults" on the Maintenance page.
4. After CM resets and becomes operational, verify pull down menus in Arcwave MIB page are
functional.
Via SNMP Interface
1. Upgrade ECM software to new version using your normal cable modem upgrade procedure.
Verify empty pull down menus in Arcwave MIB page.
2. Upgrade AR300 (ARCSmart) firmware using the Firmware Download utility on the Arcwave
MIB page.
3. Set "factoryReset" OID to "true" (1) in admin table within Arcwave MIB.
Via ARCNet
1. Upgrade ECM software to new version using your normal cable modem upgrade procedure.
Verify empty pull down menus in Arcwave MIB page.
2. Upgrade AR300 (ARCSmart) firmware (refer to ARCNet User Guide for instructions on how
to do this in real time - Do NOT Schedule an upgrade for later).
3. Select "Reset To Factory Defaults" on the Maintenance page Accessories
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Copyright 2005 Arcwave, Inc. 53
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
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Copyright 2005 Arcwave, Inc. 54
SPECIFICATIONS
AX1455 Network Hub
Wireless Channels Downstream: 20, 6.0 MHz Channels
Upstream: 14, 3.2 MHz Channels
7, 6.4 MHz Channels
Wireless Frequency Range (TX) 5.813 to 5.843 GHz; (RX) 5.725 to 5.742 GHz
Maximum Transmit Output
Power
High: +15 dBm
(Note: The “High” power setting is for use with the AX1455-
SM-90, AX1455-SM-60 and AX1455-VM-90 Network Hubs.
Use of the “High” power setting with the AX1455-SM-25
cancels the FCC certification and voids the user’s authority to
operate the unit in the 5.8 GHz band.)
Medium: +9 dBm
Low: -1 dBm
RF Frequency Range 90 to 860 MHz (Downstream); 5 to 42 MHz (Upstream)
D/S Modulation Supported 64 QAM, and 256 QAM
U/S Modulation Supported QPSK, 16 QAM, and 64 QAM
D/S Input Signal Level into the
Hub
0 to +30 dBmV
U/S Output Signal Level out of
the Hub
+35 dBmV Typical
U/S Receiver Noise Figure 5.0 dB Typical
Adjacent Channel Rejection Greater than 40 dB
Horizontal Beamwidth (–3 dB)
Vertical Beamwidth (-3 dB)
Transmit Gain
Receive Gain
AX1455-SM-60 AX1455-SM-25
60° 20°
18° 18°
15 dBi 19 dBi
14 dBi 16 dBi
Network Management
MIB
Remote
Local
SNMP MIB (Alarms, Parameters, Metrics)
SNMP or HTTP-bases User Interface
HTTP-bases User Interface
Services Supported DOCSIS, Digital and Analog Video, CBR Voice, T1/E1
Input Power 60 or 90 Vac nominal; 50 to 110 Vac actual; or +24 Vdc
Internal Operating Power +24 Vdc nominal
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 AX1455-SM-60/25
17” x 7.5” x 5.6”, 8.2 lbs.
Table 7-1: AX1455 Specifications
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Copyright 2005 Arcwave, Inc. 55
AX3255 Customer Premise Antenna / Transceiver (CPE)
Wireless Channels Downstream: 6, 6.0 MHz Channels
Upstream: 11, 3.2 MHz Channels
Wireless Frequency Range (TX) 5.813 to 5.843 GHz; (RX) 5.725 to 5.742 GHz
Maximum Transmit Output
Power
+36 dBm EIRP Maximum
Receiver Noise Figure Less than 5.0 dB typical
DOCSIS Frequency Range 90 to 150 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
Horiz. Tx Beamwidth (3 dB)
Vertical Tx 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 over Coax
Maximum Distance from CPE
to Power Pack
300 feet
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: AX3255 Specifications
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Copyright 2005 Arcwave, Inc. 56
Environment Specifications
The environmental specifications for the ARCXtend solution including the AX1455, AX3255 and
associated electrical and mechanical subassemblies are given in Table 7-3 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
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
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Copyright 2005 Arcwave, Inc. 57
ARCWAVE ENTERPRISE MIB R2.1
This guide describes Arcwave Enterprise Management Information Base (Arcwave MIB)
Release 2.1. 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 Enterprise MIB R2.1 Structure
The Arcwave MIB, named ArcwaveMib has the following structure:
Figure A-1 Arcwave MIB Structure
ArcwaveMib
arcwaveControl fwDloadInformation realtimemonitorInfo
arcwaveARCXtendId
arcwaveCableIF
arcwaveAutoFreqSet
ArcwaveEtherIF
ArcwaveNetworkAccess
arcwaveHiorLoUpstream
arcwaveUpstreamFreq
arcwaveEIAInputchanne
arcwaveUpstreamAttentuation
arcwaveDownstreamAirFreq
arcwaveDownstreamEnable
arcwaveUpstreamEnable
arcwaveSetQAMMode
arcwaveAlarmMask
arcwaveAlarmDestination
arcwaveRealtimemonitor
arcwaveBOM
arcwaveClearalarm
arcwaveTFTPserverIP
arcwaveFilename
acwaveInitiateFirmwareUpgrade
fwversionNumber
hwversion
dcelock
dslock
dstxpower
uslock
powersupplyvoltage
upstreamPowerLevel
transmittertemp
admin
controlMode
arcwaveTitle
webAccount
webPassword
factoryreset
resetAR300
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Copyright 2005 Arcwave, Inc. 58
ARCXTEND USER MANUAL – R1.4, ISSUE 6
Copyright 2005 Arcwave, Inc. 59
Arcwave Enterprise 2.1 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
arcwaveARCXtendId arcwaveControl 1 1.3.6.1.4.1.8595.1.12.1 This element indicates the
ARCXtend Hub type.
01 = AX1455
02 – AX1455
Standard
Band
03 – AX1455
Extended
Band
04 – AX1555
05 – AX1655
06 – AX1755
Integer Read Only Current 01
arcwaveCableIF arcwaveControl 2 1.3.6.1.4.1.8595.1.12.2 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 = Enable
1 = Disable Integer Read/Write Current Enable
arcwaveAutoFreqSet arcwaveControl 3 1.3.6.1.4.1.8595.1.12.3 This element enables or
disables the automatic
setting of
arcwaveEIAInputchannel
and
arcwaveUpstreamFreq.
0 = Disable
1 = Enable Integer Read/Write Current Enable
arcwaveEtherIF arcwaveControl 4 1.3.6.1.4.1.8595.1.12.4 This element enables or
disables the local Ethernet
interface
0 = Disable
1 = Enable Integer Read/Write Current Enable
arcwaveNetworkAccess arcwaveControl 5 1.3.6.1.4.1.8595.1.12.5 This element enables or
disables local access to
the Cable IP network.
0 = Disable
1 = Enable Integer Read/Write Current Disable
arcwaveHiorLoUpstream arcwaveControl 6 1.3.6.1.4.1.8595.1.12.6 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
1 = High
2 = Low Integer Read/Write Current Low
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Copyright 2005 Arcwave, Inc. 60
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.
arcwaveUpstreamFreq arcwaveControl 7 1.3.6.1.4.1.8595.1.12.7 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 AX1455
is 6.4 to 48
and for
AX1455 is 10
to 48
Integer32 Read Only Current N/A
arcwaveEIAInputchannel arcwaveControl 8 1.3.6.1.4.1.8595.1.12.8 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
arcwaveUpstreamAttentuation arcwaveControl 9 1.3.6.1.4.1.8595.1.12.9 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
0 to 64 (in
dB) and 99.
When set to
99, the gain
will be set
automatically
Integer32 Read/Write Current 99
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Copyright 2005 Arcwave, Inc. 61
reduces ingress noise onto
the cable plant, but also
decreasing the upstream
wireless range.
arcwaveDownstreamAirFreq arcwaveControl 10 1.3.6.1.4.1.8595.1.12.10 This element sets the
downstream wireless
channel to be used. (in
MHz)
For AX1455:
5813, 5819,
5825, 5831,
5837 and
5843
Integer32 Read/Write Current N/A
arcwaveDownstreamEnable arcwaveControl 11 1.3.6.1.4.1.8595.1.12.11 This element turns on the
downstream wireless
transmitter in the Hub.
1 = true
2 = false Integer Read/Write Current False
arcwaveUpstreamEnable arcwaveControl 12 1.3.6.1.4.1.8595.1.12.12 This element turns on the
upstream wireless receiver
in the Hub.
1 = true
2 = false Read/Write Current False
arcwaveSetQAMMode arcwaveControl 13 1.3.6.1.4.1.8595.1.12.13 This element selects the
Downstream Power
Setting: High, Medium or
Low.
0 = High
1 = Medium
3 = Low
Integer Read/Write Current Low
arcwaveAlarmMask arcwaveControl 14 1.3.6.1.4.1.8595.1.12.14 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
arcwaveAlarmDestination arcwaveControl 15 1.3.6.1.4.1.8595.1.12.15 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 0.0.0.0
arcwaveRealtimemonitor arcwaveControl 16 1.3.6.1.4.1.8595.1.12.16 Fetches Real Time
Monitoring information
from the ArcXtend Hub
1 = true
2 = false Integer Read/Write Current 2
arcwaveBOM arcwaveControl 17 1.3.6.1.4.1.8595.1.12.17 This element turns
PureBurst ingress noise
suppression on or off
0 = Off
1 = On Integer Read/Write Current On
arcwaveClearalarm arcwaveControl 18 1.3.6.1.4.1.8595.1.12.18 Clears alarms
1 = true
2 = false Integer Read/Write Current 2
fwDloadInformation productType 14
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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.
IP
Address
Read/W rite Current 0.0.0.0
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 N/A
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 N/A
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 N/A
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 N/A
dcelock realtimemonitorInfo 3 1.3.6.1.4.1.8595.1.15.3 This element indicates the
status of the PLL on the
AR300 module.
1 = true
2 = false Integer Read/Write Current N/A
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 N/A
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 N/A
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 N/A
txpowerlevel realtimemonitorInfo 8 1.3.6.1.4.1.8595.1.15.8 This element reports the
approximate upstream
transmit power level of the
0 to 99 Integer Read-Only Current N/A
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Copyright 2005 Arcwave, Inc. 63
hub. Its value is the
upstream transmit power
level of the ECM- 10). (in
dBmv)
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 N/A
admin productType 17
controlMode admin 1 1.3.6.1.4.1.8595.1.17.1 This element sets the
management mode for the
Hub.
1 = SNMP
2 = HTTP Integer Read/W rite Current 1
arcwaveTitle admin 2 1.3.6.1.4.1.8595.1.17.1 This element can be used
to assign a Hub name.
40 character
alpha
numeric
string
SnmpAdm
inString
Read/Write Current MAC
address of
ECM
webAccount admin 3 1.3.6.1.4.1.8595.1.17.2 This element contains the
user account name for the
HTTP Interf ace.
40 character
alpha
numeric
string
SnmpAdm
inString
Read/W rite Current N/A
webPassword admin 4 1.3.6.1.4.1.8595.1.17.3 This element contains the
user account password for
the HTTP Interface.
40 character
alpha
numeric
string
SnmpAdm
inString
Read/W rite Current N/A
factoryreset admin 5 1.3.6.1.4.1.8595.1.17.4 This elements restores the
factory default settings to
the AR300 MIB.
1 = true
2 = false Integer Read/Write Current N/A
resetAR300 admin 6 1.3.6.1.4.1.8595.1.17.5 This element resets the
AR300 module.
1 = true
2 = false Integer Read/Write Current N/A
Table A-1 Arcwave MIB Definitions and OID
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Copyright 2005 Arcwave, Inc. 64
Arcwave Alarm Descriptions
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.
From the NOC, clear alarm and reset the Hub using the
Reset ARCXtend command located on the ARCXtend
Maintenance page. If this doesn’t clear up the problem then
refer problem to the field for local troubleshooting.
In the field, reset power on unit & check if condition goes
away. If not troubleshoot accordingly.
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.
From the NOC, clear alarm and reset the Hub using the
Reset ARCXtend command located on the ARCXtend
Maintenance page. If this doesn’t clear up the problem then
refer problem to the field for local troubleshooting.
In the field, reset power on unit & check if condition goes
away. If not troubleshoot accordingly.
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.
From the NOC, clear alarm and reset the Hub using the
Reset ARCXtend command located on the ARCXtend
Maintenance page. If this doesn’t clear up the problem then
refer problem to the field for local troubleshooting.
In the field, reset power on unit & check if condition goes
away. If not troubleshoot accordingly.
No immediate impact
but could result in loss
of traffic, system
outage.
Warning: The Hub is
operating within 10C of
its maximum operating
temperature.
The Unit is
operating near
its maximum
operating
temperature
Major This alarm gets
displayed
The Unit is operating near its maximum operating
temperature.
At the NOC check temperature and clear alarm. If this
doesn’t clear up the problem then refer problem to the field
for local troubleshooting.
In the field, shade hub using a sun shield or relocate to a
new location.
No immediate impact
but could result in loss
of traffic, system
outage.
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Copyright 2005 Arcwave, Inc. 65
Event Syntax Event
Message Text
Severity Customer
Symptom
Explanation of event /Corrective Action What will the Customer
Experience
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.
From the NOC, clear alarm and reset the Hub using the
Reset ARCXtend command located on the ARCXtend
Maintenance page. If this doesn’t clear up the problem then
refer problem to the field for local troubleshooting.
In the field, reset power on unit & check if condition goes
away. If not troubleshoot accordingly.
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.
From the NOC, clear alarm and reset the Hub using the
Reset ARCXtend command located on the ARCXtend
Maintenance page. If this doesn’t clear up the problem then
refer problem to the field for local troubleshooting.
In the field, reset power on unit & check if condition goes
away. If not troubleshoot accordingly.
Lost of traffic, system
outage
AR300
Downstream(Transmitt
er) Unlocked or Error
The
Downstream
module has
lost lock.
Critical Modems on the
ARCXtend
system lose sync
The Downstream module has lost lock.
From the NOC, clear alarm and reset the Hub using the
Reset ARCXtend command located on the ARCXtend
Maintenance page. If this doesn’t clear up the problem then
refer problem to the field for local troubleshooting.
In the field, reset power on unit & check if condition goes
away. If not troubleshoot accordingly.
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 6
Copyright 2005 Arcwave, Inc. 66
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
Warning: the Hub is operating
within 10C of its maximum
operating 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)
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)
ARCXTEND 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. 67
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 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. 68
arcwaveEIAInputchannel VALUES
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
35 291
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
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
138 879
ARCXTEND USER MANUAL – R1.4, ISSUE 6
Copyright 2005 Arcwave, Inc. 69
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 5.8 GHZ USER MANUAL – R1.0, ISSUE 1
Copyright 2005 Arcwave, Inc. 70
Sequence Event Description
1
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.
8
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.
9
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