The color of the board itself and the type of LED on the board are the easiest identifiers.
- Series 1 SIO panels and SCP intelligent controllers are green boards, and have round LEDs
- Series 2 SIO panels and EP Series intelligent controllers are also green boards, but the LEDs are low profile and square
- Series 3 SIO panels and LP Series intelligent controllers are red boards
|Series||Replace or Reuse|
|Series 1: SCP-C, SCP-S, SCP-E||Replace|
|Series 2: EP||Reuse|
|Series 3: LP||Newest series - Reuse|