Vizio CPU-56 - Manual (Page 51)

12-3 Channel 2 (CH. 2) Calling Party Indication Lamp Type (1)
Each "Calling Station" or "Waiting Station" is shown by Each Indication Lamp.
Total Number of Stations with Indications : 4 Stations/Channel (8 Stations/2 Channels)
Total Number of Calling Stations : Max. 128 Stations/Each Indication
Each Relay Output shows
"Calling Station No."
Exchange
Data Transmitter
Data Receiver Relay Output No.
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