These modules have 16 relays with inputs located on rear panel header connectors and outputs bussed on the motherboard. The G-1S has 1 Pole, Type S relays, two 20 pin headers. Requires a signal I/O mod and limits mainframe to 15 switch modules.
$290.00
Discrete 4×4 Coaxial Matrix with SMA
32 Wire Signal I/O Module with two H20RT Connectors
8×1 High Isolation Terminated Switch Module w/BNC
4×1 One Pole Terminated Type S Reed