Alpha XP-EDH3 Transponder Field Installation Instructions Effective: February 2009 Alpha Technologies
Overview to the field installation instructions The XP-EDH3 transponder provides the ability to manage network power through an existing cable modem infrastructure, for a variety of power supplies as shown in this document. These instructions provide information important to the successful installation, connection and operational verification of the Alpha XP-EDH3 transponder in a variety of systems. Save these instructons for future reference.
Connection Instructions for the Alpha AM, XM Series Power Supply NOTE: A chipset upgrade may be required; contact Alpha for more information. Set the jumpers and calibrate the USM card before making connections and applying the load. 1. Switch Battery Breaker OFF prior to removing the Inverter Module for USM Card installation and configuration.
Connection Instructions for the Alpha XM Series 2 Power Supply WARNING! The XM2 batteries are isolated from chassis ground by design. Any voltage potential difference between battery (-) and chassis ground must be eliminated before installing the transponder to avoid potential transponder damage. To accomplish this, attach a ground jumper between battery (-) and chassis ground before installing the transponder. Once the transponder is installed the jumper may be removed if desired.
Input and Output Connections, ZTT and ZTT+ Models CAUTION! Installation of the Vout and Iout sense harness requires powering down the power supply. Use an alternate source of power during this procedure.
Input and Output Connections, Generic Models CAUTION! Installation of the Vout and Iout sense harness requires powering down the power supply. Use an alternate source of power during this procedure.
Verifying Installation and Network Connectivity (applies to all power supplies) Method 1: Status LEDs After the initial transponder power-up, network communication can be verified by the following behavior: Rx LED on Solid, occasionally flickering off, indicating CMTS communication Tx LED off, but will flicker when transmitting data to CMTS Method 2: Local Port using Craft Port Cable, Alpha P/N: 875-349-10 Connect laptop to ‘Local’ port and set terminal emulator software settings to: 19200 Baud; 8-N-1; No
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