| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | TX2-LT-5V | RELAY TELECOM DPDT 2A 5VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 3 | AGQ21TS1HX | RELAY GEN PURPOSE DPDT 2A 1.5VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 4 | G6EK-134P-ST-US-DC12 | RELAY GEN PURPOSE SPDT 2A 12VGeneral Purpose Relay SPDT (1 Form C) Through Hole | Omron Electronics Inc-EMC Div |
| 5 | 03540536Z | RELAY SOCKET HOUSING ISO DOUBLERelay Housing Wiring Harness | Littelfuse Inc. |
| 6 | PRD-11DG0-12 | RELAY GEN PURPOSE DPDT 30A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Chassis Mount | TE Connectivity Potter & Brumfield Relays |
| 7 | 2970882 | INTERFACE MODULE W/PLUG-IN SCKTI/O Module Rack 4 Channel | Phoenix Contact |
| 8 | ARS12A4H | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |
| 9 | ARX104H | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |