COMBA CriticalPoint BBU V2 - Annunciator Panel Measurements; Panel Voltage and Resistance Checks

©20
2
1
Comba Telecom. All Rights
Reserved
.
568 Gibraltar Drive, Milpitas, CA 95035 | +1 408 526 0180 Ext 3 | www.combausa.com 10
Version 1.0.4
1.16.23
Annunciator Panel Measurements
1. Turn ON the annunciator panel
2. Measure voltages across 1->3 and 2->3
Voltage should be around 1.65V +- 0.05V
1 to 3
~ 1.65 VDC
2 to 3
~ 1.65 VDC
1. Turn off power to the annunciator panel.
2. Disconnect the three data cables at the annunciator panel control board
3. Measure the resistance from 1->3, 2->3, and 1->2
1 to 3 ~ 2.2k Ohms
2 to 3 ~ 2.2k Ohms
1 to 2 ~ 130 Ohms
Annunciator Panel Control Board