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Converge Pro 840T: Port A (Female DB-25)
Pin # User Definable Control/Status Default Description
1 Y Control (Input)
2 Y Status (Output)
3 Y Control (Input) Mute All Mics Toggle
4 Y Status (Output) Status of Mute All Mics
5 Y Control (Input) Telco On/Off Toggle
6 Y Status (Output) Status of Telco On/Off
7 Y Control (Input) Auto Answer Toggle
8 Y Status (Output) Status of Auto Answer
9 Y Control (Input) Mute Output 5 Toggle
10 Y Status (Output) Status of Mute Output 5
11 Y Control (Input) Mute Input 5 Toggle
12 Y Status (Output) Status of Mute Input 5
13 Y Control (Input) Volume Up Output 8 (1 dB)
14 Y Status (Output)
15 Y Control (Input) Volume Down Output 8 (1 dB)
16 Y Status (Output)
17 N Status (Output) Microphone 1 Gate Status
18 N Status (Output) Microphone 2 Gate Status
19 N Status (Output) Microphone 3 Gate Status
20 N Status (Output) Microphone 4 Gate Status
21 Y Status (Output)
22 Y Status (Output)
23 Y Status (Output)
24 Y Status (Output) Ring Indication
25 NA NA Ground