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Appendix B: Pinouts
Appendix B ~ Pinouts
13 | 1 |
2514
Figure B.1. DB-25 connector
✍ All commands are momentary.
✍ | The first 16 pins of the | |
Control/Status | port are | |
| programmable | through |
direct serial port commands.
5 1
9 6
Figure B.2. RS-232 connector
Control/Status port pinout (female)
Pin | Definable | Type | Default Description |
1 | Yes | Control | Aux In to Aux Out toggle |
2 | Yes | Status | Status of Aux In to Aux Out |
3 | Yes | Control | Mute Mic/Line In toggle |
4 | Yes | Status | Status of Mic/Line In mute |
5 | Yes | C | Telephone On/Off toggle |
6 | Yes | S | Status of tel. On/Off toggle |
7 | Yes | C | Auto Answer toggle |
8 | Yes | S | Status of Auto Answer |
9 | Yes | C | Mute Line Out toggle |
10 | Yes | S | Status of Line Out mute |
11 | Yes | C | Mute |
12 | Yes | S | Status of |
13 | Yes | C | Volume up Speaker/Line (1dB) |
14 | Yes | S | No connection |
15 | Yes | C | Volume down Spkr/Line (1dB) |
16 | Yes | S | No connection |
17 | No | S | No connection |
18 | No | S | No connection |
19 | No | S | No connection |
20 | No | S | No connection |
21 | No | S | Ring indication |
22 | No | S | No connection |
23 | No | S | +5VDC |
24 | No | S | +5VDC |
25 | No | Ground | Ground |
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RS-232 COM DCE port pinout (female)
Pin Number | Control | Pin Number | Control |
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1 | DCD | 6 | DSR |
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2 | TXD | 7 | CTS |
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3 | RXD | 8 | RTS |
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4 | DTR | 9 | No connection |
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5 | Ground |
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