1 or 2 Pole Signal I/O Module
$65.00
1 Pole, Type S, Form C discrete relays
1 Pole, Type S, Form C, two 20 pin headers, requires signal I/O mod and limits mainframe to 15 switch modules
3 Pole Signal I/O
256 channel Mainframe, holds up to 16 switch modules in a matrix configuration or 15 with the general series. Switch Modules are priced separately.
