Alpha DOCSIS DM31 Quick Start Manual

DM31 DOCSIS
Introduction
This guide describes the DOCSIS Monitor 31 (DM31) transponder and provides procedures with regard to installation in
the XM3 series broadband uninterruptible power supply (UPS). This guide also provides steps to verify correct network
provisioning on the DOCSIS network. For detailed information, refer to the DM31 Technical Manual available at
www.alpha.com.
Audience
This guide is intended for experienced, qualified and licensed installation personnel familiar with the mechanical and
electrical requirements of enclosure and power supply systems. Review the support documentation on the website to
become familiar with the features and functions of the equipment in this system before proceeding. Failure to install
and/or use this equipment as instructed in the system documents can result in a hazard to personnel or damage to the
equipment. This system is only serviceable by qualified personnel.
Overview
The DM31 unit is a DOCSIS 3.1 transponder designed to provide status and alarms from the XM3 broadband UPS to a
network monitoring system. The DM31 transponder utilizes Simple Network Management Protocol (SNMP), standard
SCTE-HMS and Alpha Management Information Bases (MIBs) to provide network status monitoring and diagnostics. A
web interface enables authorized personnel direct access to advanced diagnostics using a common web browser. The
DM31 transponder is composed of the following:
Ethernet Port
E
T
H
E
Environmental Port
N
V
Tamper Switch Connector
TORQUE
T P R
10.0 IN-LB
ALMRDY
11.5 kgf.cm
RF Drop
R
S
R RF Connector
T
F
RX/TX
PWR
G RN = O K
B LU = WA R N
R E D = O UT
COM
PWR
DS
US
Grounded Surge Protector
OL
LNK
(Alpha p/n 162-028-10 or equivalent)
Thumbscrew
LED Indicators
ALM/RDY DM31 ready, major/minor alarm
Rx/Tx PWR RF power level
XM3 communications
COM
PWR DM31 power
1
3.1 Transponder for XM3™ Power Supply
®
Quick Start Guide
Thumbscrew
To Headend
Required
DS Downstream RF carrier detection/lock
US Upstream RF carrier detection/lock
Registration lock
OL
LNK Ethernet link
Fig. 1, DM31 Transponder
017-891-B12-001, Rev. A (02/2023)