Serial port pinout: Difference between revisions
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[[RIO]]: Multidrop (RS485) cabling: | |||
<pre> | |||
AlphaCom RIO #1 RIO #n | |||
Serial 1 15 pin DSUB 15 pin DSUB | |||
RJ45 | |||
1 -----------------+-- 9 --+----------------+-- 9 | |||
| | | | |||
--- 11--- --- 11 | |||
7 -----------------+-- 2 --+----------------+-- 2 | |||
| | | | |||
--- 4 --- --- 4 | |||
</pre> | |||
[[Category:AlphaCom E System]] | [[Category:AlphaCom E System]] | ||
Revision as of 15:55, 28 February 2008
In the AlphaCom E20 and E26 exchanges the two serial ports are available on RJ45 connectors. In the AlphaCom E7 serial port 0 is 9 pin DSUB, and serial port 1 is on a RJ45 connector.
The serial port 0 is RS232 only, the serial port 1 can be RS232, RS422 or RS485.
The pinout on the RJ45 connector is as follows:
| RJ45 pinout | |
|---|---|
| RS232 | 3 = TX<br\>6 = RX<br\> 4&5 = GND |
| RS422 | 1 = RX-<br\>2 = RX+<br\>7 = TX-<br\>8 = TX+ |
| RS485 | 1/7 = Data - <br\> 2/8 = Data+ |
<br\><br\>
Adaptor cable from RJ-45 to 9-pin Female D-SUB:
| RJ45 - AlphaCom E | 9 p Female DSUB |
|---|---|
| 3 | 2 |
| 5 | 5 |
| 6 | 3 |
Cabling between RIO unit and AlphaCom E using multidrop RS485:
| RJ45 - AlphaCom E | RIO 15 p DSUB |
|---|---|
| 1 (RX-) | 9 (TX+) |
| 2 (RX+) | 2 (TX-) |
| 7 (TX-) | 11 (RX+) |
| 8 (TX+) | 4 (RX-) |
RIO: Multidrop (RS485) cabling:
AlphaCom RIO #1 RIO #n
Serial 1 15 pin DSUB 15 pin DSUB
RJ45
1 -----------------+-- 9 --+----------------+-- 9
| | |
--- 11--- --- 11
7 -----------------+-- 2 --+----------------+-- 2
| | |
--- 4 --- --- 4