IQCSPI
SECTION 33c
IQCSPOPS
100305
www.snellwilcox.com
Version 1 Issue 8
33c.5
Pin Connections for 9 way D
-
Type Connectors
As RS422 (ports 1 to 4)
IQCSPI
9 Way D-Type
Pin Number
Ribbon Cable
Strand Number
Description
Connect to
Remote Unit
1
1
Ground
Ground
6
2
Not Used
2
3
Received Data A (RxDA)(Rx-ve)
Transmitted Data A (TxDA)(Tx-ve)
7
4
Received Data B (RxDB)(Rx+ve)
Transmitted Data B (TxDB)(Tx+ve)
3
5
Transmitted Data B (TxDB)(Tx+ve)
Received Data B (RxDB)(Rx+ve)
8
6
Transmitted Data A (TxDA)(Tx-ve)
Received Data A (RxDA)(Rx-ve)
4
7
Not Used
9
8
Not Used
5
9
Not used
For reference, the A signal is at 0V at line idle, and the B signal at +5V.
As RS232 (only applies to port 1 when configured as RS232)
IQCSPI
9 Way D-Type
Pin Number
Ribbon Cable
Strand Number
Description
Connect to
Remote Unit
1
1
Ground
Ground
6
2
Not Used
2
3
Received Data (RxD)
Transmitted Data (TxD)
7
4
+10 V
3
5
Transmitted Data (TxD)
Received Data (RxD)
8
6
Not Used
4
7
+10 V
9
8
Not Used
5
9
Ground
Ground