3 Pole Signal I/O
$90.00
3 Pole, Type S relays, 50 pin header (requires signal I/O mod and limits mainframe to 15 switch modules)
1 Pole, Type S relays, two 20 pin headers, requires signal I/O mod and limits mainframe to 15 switch modules
9 Pole Signal I/O w/ D9S Connector
Signal I/O Module for common slot
