| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275EU | MTRAK M275 EVENT UNIT | Digi International |
| 2 | 5-1462039-5 | RELAY TELECOM DPDT 2A 5VTelecom Relay DPDT (2 Form C) Surface Mount | TE Connectivity Potter & Brumfield Relays |
| 3 | AGQ20T2H | RELAY GEN PURPOSE DPDT 2A 2.4VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 4 | DS2E-S-DC12V | RELAY GEN PURPOSE DPDT 2A 12VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 5 | DS2Y-S-DC48V | RELAY GEN PURPOSE DPDT 2A 48VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 6 | RSE116174 | 2 POLE/10 AMP W/O CONTACTSRelay | Amphenol Pcd |
| 7 | SY4S-62 | SOCKET PCB MOUNT FOR RU4S/RY4SRelay Socket Through Hole | IDEC |
| 8 | 5529191 | CONN TERM BLOCKI/O Module Rack Channel | Phoenix Contact |
| 9 | 70GRCQ24-HS | I/O MOUNTING BOARD G5 24POSI/O Module Rack 24 Channel | Grayhill Inc. |