COMBA CPBBUV1-48055-UL Quick Installation Manual - Page 10
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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
2 to 3
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 to 3
1 to 2
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568 Gibraltar Drive, Milpitas, CA 95035 | +1 408 526 0180 Ext 3 |
~ 1.65 VDC
~ 1.65 VDC
~ 2.2k Ohms
~ 2.2k Ohms
~ 130 Ohms
Annunciator Panel Control Board
www.combausa.com
10
Version 1.0.4
1.16.23