Alpha DOCSIS Analog User Manual

™

AlphaNet

Series

External DOCSIS® Analog T ransponder

Technical Manual

Effective: January, 2006

Alpha Technologies

Alpha Technologies

Power

®

External DOCSIS® Analog T ransponder

Technical Manual

745-419-C0-002, Rev. B

Effective Date: January, 2006

Copyright © 2006

Alpha Technologies, Inc.

member of The Group

NOTE:

Alpha denies responsibility for any damage or injury involving its enclosures, power supplies, generators,
batteries or other hardware, manufactured by Alpha or members of the Alpha Group, when used for an
unintended purpose, installed or operated in an unapproved manner, or improperly maintained.

NOTE:

Photographs and drawings contained in this manual are only for illustrative purposes. These photographs and
drawings my not exactly match your installation.

NOTE:

Review the written and illustrative information contained in this manual before proceeding. If there are
questions regarding the safe installation or operation of this powering system or enclosure, please contact
Alpha Technologies or your nearest Alpha representative.

TM

Contacting Alpha Technologies: www.alpha.com

or

For general product information and customer service (7 AM to 5 PM, Pacifi c Time), call

1-800-863-3930,

For complete technical support, call

1-800-863-3364

7 AM to 5 PM, Pacifi c Time or 24/7 emergency support

DOCSIS® is a Registered Trademark of CableLabs.

3

Table of Contents

Safety Notes .......................................................................................................................... 6

1.0 Introduction to the DOCSIS Transponder ...................................................................7

1.1 System Overview ............................................................................................. 8

1.2 LED Indicators ................................................................................................. 9

2.0 Transponder Installation ...........................................................................................10

2.1 Provisioning the Transponder ........................................................................ 10

2.1.1 Network Connectivity ..........................................................................10

2.1.2 Transponder Confi guration Using the HMS.INI File .............................11

2.1.3 Transponder Confi guration Using Cable Modem Confi g File .............. 13

2.2 Battery Sense Cable and Aux Power Connections ........................................ 15

2.3 Power Supply Communication Card Settings ................................................ 20

2.4 Power Supply Interface Connection............................................................... 21

2.5 Input and Output Connections, XM2, XM, and AM Models............................ 23

2.6 Input and Output Connections, ZTT and ZTT+ Models ................................. 24

2.7 Input and Output Connections, Generic Models ............................................ 25

2.8 Transponder Placement ................................................................................. 26

2.9 Local and RF Connectors .............................................................................. 27

2.10 Verify Transponder Operation ........................................................................ 27

3.0 Network/Element Management Software ................................................................. 28

3.1 Provisioning the SNMP Manager ...................................................................28

3.2 Transponder Communication with the SNMP Manager ................................. 28

4.0 Using the Local Port ................................................................................................. 29

5.0 Specifi cations............................................................................................................ 30

4

745-419-C0-002, Rev. B

List of Figures

Fig. 1-1, DOCSIS External Analog Transponder ........................................................ 7

Fig. 1-2, Basic System Block Diagram ....................................................................... 8

Fig. 1-3, LEDs ............................................................................................................. 9

Fig. 2-1, 24VDC Battery Sense ................................................................................ 16

Fig. 2-2, 36VDC Battery Sense ................................................................................ 17

Fig. 2-3, 48VDC Battery Sense ................................................................................ 18

Fig. 2-4, Aux Power and Generator Ignition Battery Connectors .............................. 19

Fig. 2-5, Power Supply Interface Connections ......................................................... 22

Fig. 2-6, Input and Output Connections, XM2, XM, and AM Models ........................ 23

Fig. 2-7, Input and Output Connections, ZTT and ZTT+ Models .............................. 24

Fig. 2-8, Input and Output Connections, Generic Models.........................................25

Fig. 2-9, Suggested Transponder Mounting Location ............................................... 26

Fig. 2-10, Local Port ................................................................................................. 27

Fig. 2-11, RF Connection .......................................................................................... 27

Table 2-1, TLGDHMSInit MIB ................................................................................... 14

Table 2-2, Power Supply Communication Card Settings ..........................................20

Table 2-3, Power Supply Interface Connection......................................................... 21

5745-419-C0-002, Rev. B

Safety Notes

Review the drawings and illustrations contained in this manual before proceeding. If there are any questions
regarding the safe installation or operation of the system, contact Alpha Technologies or the nearest Alpha
representative. Save this document for future reference.

To reduce the risk of injury or death and to ensure the continued safe operation of this product, the following
symbols have been placed throughout this manual. Where these symbols appear, use extra care and
attention.

ATTENTION:

The use of ATTENTION indicates specifi c regulatory/code requirements that may affect the placement of
equipment and /or installation procedures.

NOTE:

A NOTE provides additional information to help complete a specifi c task or procedure.

CAUTION!
The use of CAUTION indicates safety information intended to PREVENT DAMAGE to material or

equipment.

WARNING!

WARNING presents safety information to PREVENT INJURY OR DEATH to the technician
or user.

6

745-419-C0-002, Rev. B

1.0 Introduction to the DOCSIS Transponder

The DOCSIS Analog Transponder provides the ability to manage network powering through existing
cable modem infrastructure. A single transponder can monitor and manage a power supply, batteries,
and generator. The transponder transmits data to a management system over the network’s existing
CMTS, and using standard SNMP (Simple Network Management Protocol) keeps bandwidth use to a
minimum. Status Monitoring information is compatible with ANSI/SCTE HMS standards.

With optional VoIP test functionality, the power supply transponder becomes a powerful network
diagnostics tool.

Whether extending the life of your network backup power through battery balancing, managing QoS
for VoIP services, or monitoring for trouble areas during an AC power outage, the Alpha DOCSIS
Analog Transponder provides the tools needed to manage today’s network power requirements, and
the ability to upgrade for tomorrow’s needs.

Features:

• Uses existing headend equipment

• Uses ANSI/SCTE HMS standards

• Single transponder supports a variety of power supply models

RF

GEN

P/N: 745-419-20-XXX
CM: 00:10:3F:XX:XX:XX
S/N: XXXXXX

1

PWR SPLY

1

Fig. 1-1, DOCSIS External Analog Transponder

BAT A/B

1

BAT C/D

AUX PWR

11

LOCAL

TX

RX

LCL

RDY

7745-419-C0-002, Rev. B

1.0 Introduction to the DOCSIS Transponder, continued

1.1 System Overview

The DOCSIS Analog Transponder receives data from a Universal Status Monitoring Card on
XM series power supplies, from the status monitor connector on Lectro ZTT power supplies,
or from the RPM card on AM power supplies. The transponder and power supply can be
network managed through your existing CMTS.

Power Supply

(XM, XM2, ZTT, or AM)

AlphaGen
Generator

System

To CMTS

R
F

P/N: 745-419-20-XXX

CM: 00:10:3F:XX:XX:XX

S/N: XXXXXX

Battery

String

1

PWR SPLY

GEN

Battery

String

BAT A/B AUX PWR

1

1

BAT C/D

1

1

LOCAL

TX

RX

Up to Four 24V, 36V, or 48V Battery Strings

Battery

String

Battery

String

Fig. 1-2, Basic System Block Diagram

8

745-419-C0-002, Rev. B

1.0 Introduction to the DOCSIS Transponder, continued

1.2 LED Indicators

TX: Indicates status of data transmission to CMTS.
OFF: Idle Status.
Flickering ON: Communicating with CMTS.
LCL: Indicates the status of the local Craft port.
OFF: No communication.

AUX PWR

1

LOCAL

TX

RX

LCL

RDY

ON fl ickering OFF: Ongoing communication.
RDY: Indicates operation status of the transponder.
Flashing ON and OFF: Normal Operation.
OFF: No power or malfunctioning transpon-

der.
ON: Transponder reset in progress.
RX: Status of data reception from CMTS.
ON: Communication established with

CMTS.
OFF: No communication with CMTS.
ON fl ickering OFF: Receiving data, CMTS link estab-

lished.
Flashing ON & OFF: Indicates loss of communication with

CMTS

Fig. 1-3, LEDs

9745-419-C0-002, Rev. B

2.0 Transponder Installation

Steps to a Successful Installation:

• Operator’s IT Department must allow the transponder’s Cable Modem (CM) to obtain an IP
address from the DHCP Server.

• Operator’s IT Department must load the hmsinit.ini fi le on the TFTP Server, or use the cable
modem confi g fi le (see section 2.1.3).

• Operator’s network security policies must allow SNMP traffi c to pass between transponder and
SNMP manager.

• Install the transponder and any related equipment in the enclosure.

• Connect an RF drop.

• Verify proper operation.

Quick Start Transponder Operation:

1. Verify the power supply communication card settings are correct. See Section 2.3 for details.

2. Provide power by connecting the battery sense cable or Auxiliary Power connection. Refer to
Section 2.2 for details.

3. Wait until the RDY LED begins fl ashing, and then connect the power supply interface connection.
See Section 2.4.

4. Connect all other Input/Output connections. See Section 2.5, 2.6, or 2.7 for details.

2.1 Provisioning the Transponder

Complete Sections 2.1.1 and 2.1.2 before connecting the transponder to the RF network.
Otherwise, you must reset each transponder.

2.1.1 Network Connectivity

The transponder’s cable modem must be recognized by the CMTS as a valid device,
be able to obtain an IP address from the DHCP server, locate the TFTP and TOD
servers, and communicate with the SNMP management server (trap receiver). Differ­ent security methods are used to insure network integrity, some common issues are:

• A “subscriber account” (where the subscriber is the transponder) may be required
for each transponder.

• The transponder’s MAC address may have to be pre-loaded into the CMTS.

• MAC fi ltering may have to be modifi ed to allow MAC addresses starting with
00:10:3f:xx:xx:xx to be registered.

• For SNMP access, UDP ports 161 & 162 must not be blocked.

• Firewalls must allow communication between the cable modem and the various
servers noted above.

10

• If the address of the TFTP and/or TOD server is different than the DHCP server,
the response from the DHCP server must contain the TFTP and TOD
addresses.

745-419-C0-002, Rev. B