
Output ports are interfaced with a 5mm spaced terminal block which has 8 terminals. Every output port is connected to a relay and each port can be selected NO (Normal Open) or NC (Normal Close) by a jumper. Output ports' range of use is as follows:
| Voltage (DC) | Max. Permissible Current |
|---|---|
| 30V | 2A |
※ Caution : It may result in product malfunction to use beyond the maximum permissible current. Be sure to use it considering the peak current of a connected device.
A slave ID is used when PHPoC shield identifies each smart expansion board. So, each smart expansion board, which is connected to a PHPoC shield, should have a unique slave ID. The slave ID can be set one of the numbers from 1 to 14 by 4 DIP switches as follows:

This board has five LEDs.
| LED | Description |
|---|---|
| STS | when slave id is valid > repeat on and off every second when slave id is invalid > blinks very quickly when it failed to communicate with a PHPoC shield > off |
| 0 | turned ON with output 0 is ON |
| 1 | turned ON with output 1 is ON |
| 2 | turned ON with output 2 is ON |
| 3 | turned ON with output 3 is ON |