Signal I/O Module for common slot
$110.00
2 Pole, 4(8×1) or 2(16×1), Form A, Armature, D78
1 Pole, Discrete relay, 16 Type P, Form A, D37 conn
1 Pole 8×2, Type HV HP 20 pin header
Standalone Mainframe Chassis for up to 16 modules with as many as 32 two pole relays per module. Switch modules are priced separately