Terminal Blocks
The IB1004 and the SB1004 have four terminal blocks in total, two on each board. There are nine terminals in each terminal block.
- All A/D inputs are grouped into terminal blocks 1 and 2.
- All D/A outputs are on terminal block 3.
- Relay outputs and the serial port are on terminal block 4.
Terminal block 1
Terminal # |
Function |
9 |
A/D channel 4, negative input (-) |
8 |
A/D channel 4, positive input (+) |
7 |
A/D channel 3, negative input (-) |
6 |
A/D channel 3, positive input (+) |
5 |
A/D channel 2, negative input (-) |
4 |
A/D channel 2, positive input (+) |
3 |
A/D channel 1, negative input (-) |
2 |
A/D channel 1, positive input (+) |
1 |
A/D GROUND (isolated from the rest of the device) |
Terminal block 2
Terminal # |
Function |
9 |
A/D channel 8, negative input (-) |
8 |
A/D channel 8, positive input (+) |
7 |
A/D channel 7, negative input (-) |
6 |
A/D channel 7, positive input (+) |
5 |
A/D channel 6, negative input (-) |
4 |
A/D channel 6, positive input (+) |
3 |
A/D channel 5, negative input (-) |
2 |
A/D channel 5, positive input (+) |
1 |
A/D GROUND (isolated from the rest of the device) |
Terminal block 3
Terminal # |
Function |
9 |
D/A channel 4, current output |
8 |
D/A channel 4, voltage output |
7 |
D/A channel 3, current output |
6 |
D/A channel 3, voltage output |
5 |
D/A channel 2, current output |
4 |
D/A channel 2, voltage output |
3 |
D/A channel 1, current output |
2 |
D/A channel 1, voltage output |
1 |
D/A GROUND (isolated from the rest of the device) |
Terminal block 4
Terminal # |
Function |
9 |
Relay 2, normally opened line |
8 |
Relay 2, normally closed line |
7 |
Relay 2, common line |
6 |
Relay 1, normally opened line |
5 |
Relay 1, normally closed line |
4 |
Relay 1, common line |
3 |
Serial port: TX (RS232); TX/RX+ (RS485) |
2 |
Serial port: RX (RS232); TX/RX- (RS485) |
1 |
SYSTEM (COMMON) GROUND |