Terminal Blocks
The IB1005 and SB1005 have four terminal blocks between them. There are nine terminals in each block.
- The serial port and sensor input lines are grouped into terminal blocks 1 and 2.
- All relay outputs are on terminal blocks 3 and 4.

Terminal Block 1
|
Terminal # |
Function |
|
9 |
Sensors 3 and 4, positive line (+) |
|
8 |
Sensor 4, negative line (–) |
|
7 |
Sensor 3, negative line (–) |
|
6 |
Sensors 1 and 2, positive line (+) |
|
5 |
Sensor 2, negative line (–) |
|
4 |
Sensor 1, negative line (–) |
|
3 |
Serial port: RX (RS232); TX/RX– (RS485) |
|
2 |
Serial port: TX (RS232); TX/RX+ (RS485) |
|
1 |
System (common) ground |
Terminal Block 2
|
Terminal # |
Function |
|
9 |
Sensor 8, positive line (+) |
|
8 |
Sensor 8, negative line (–) |
|
7 |
Sensor 7, positive line (+) |
|
6 |
Sensor 7, negative line (–) |
|
5 |
Sensor 6, positive line (+) |
|
4 |
Sensor 6, negative line (–) |
|
3 |
Sensor 5, positive line (+) |
|
2 |
Sensor 5, negative line (–) |
|
1 |
Vin (connected to the power input of the NB10x0) |
Terminal Block 3
|
Terminal # |
Function |
|
9 |
Relay 3, normally closed line |
|
8 |
Relay 3, normally opened line |
|
7 |
Relay 3, common line |
|
6 |
Relay 2, normally closed line |
|
5 |
Relay 2, normally opened line |
|
4 |
Relay 2, common line |
|
3 |
Relay 1, normally closed line |
|
2 |
Relay 1, normally opened line |
|
1 |
Relay 1, common line |
Terminal Block 4
|
Terminal # |
Function |
|
9 |
Relay 6, normally closed line |
|
8 |
Relay 6, normally opened line |
|
7 |
Relay 6, common line |
|
6 |
Relay 5, normally closed line |
|
5 |
Relay 5, normally opened line |
|
4 |
Relay 5, common line |
|
3 |
Relay 4, normally closed line |
|
2 |
Relay 4, normally opened line |
|
1 |
Relay 4, common line |