Commander Installation Guide
3.4.3SERIAL LINK (RS232 / RS422)
The current version of PC connector plate, which is fitted on the rear right hand side of the Commander Matrix frame, provides either RS232 or RS422 connection capability. The factory default setting is RS232: this may be changed by removing the 4 fixing screws, withdrawing the rear connector assembly and moving the PCB mounted jumper links to the alternate position. Most computers are fitted with D9 fixed sockets for the serial COM port. For older models equipped with a D25, suitable adaptors may be easily obtained.
RS232 configuration.
Commander Sub D9 Fixed Socket - Pin
Function
PC COM Port D9 Fixed Socket
1 | DCD | 1 |
2 | TX | 2 |
3 | RX | 3 |
4 | DTR | 4 |
5 | 0V or GND | 5 |
6 | DSR | 6 |
7 | CTS | 7 |
8 | RTS | 8 |
9 | n/c | 9 |
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Note: Pin 1 through to Pin 8 MUST be wired 1:1. CAT 5 cable is suitable for most applications.
RS422 configuration.
Commander Sub D9 |
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Fixed Socket Pin | Function | Notes |
4,8 | 422 in, +,- | Pair 1 (RX) |
6,1 | 422 out, +,- | Pair 2 (TX) |
7,2 | 422 RTS +,- | Pair 3 |
5,9 | 422 CTS +,- | Pair 4 |
3 |
| Chassis |
Connection to external equipment will depend on the manufacturer and model of RS422 card fitted. The table above only relates to the matrix.
3.4.4ALARMS
These are provided on a 9 way D type fixed socket on the rear of the matrix. The function of the output is software controlled from the
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| D9 Fixed Socket - Pin | Function | Notes |
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| 1,6 | Right side OK | Pair 1 |
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| 2,7 | Left side OK | Pair 2 |
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| 4,8 | C/O Card OK | Pair 3 |
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| 5,9 | Left side selected | Pair 4 |
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| 3 |
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Page 24 of 81 | Issue 9 | Trilogy Communications Limited | ||
