| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | JRS400410 | QUICK MOUNT, 4 POLERelay | Amphenol Pcd |
| 3 | 56.5669.DR | SOCKET RELAY DIN MNT OA/OW 5669Relay Socket DIN Rail | Altech Corporation |
| 4 | 5521856 | FLKMI/O/G4Relay Socket DIN Rail | Phoenix Contact |
| 5 | ALE75B05 | RELAY GEN PURPOSE SPST 16A 5VGeneral Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole | Panasonic Electric Works |
| 6 | 1432869-1 | RELAY GEN PURPOSE SPDT 40A 12VGeneral Purpose Relay SPDT (1 Form C) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | 9402-05-00 | RELAY RF SPST 500MA 5V | Coto Technology |
| 8 | 20C314 | HOLD DOWNSPRING FOR KU RELAYSClip, Hold Down KU Series | TE Connectivity Potter & Brumfield Relays |
| 9 | 1-1462052-7 | RELAY RF SPDT 2A 5V | TE Connectivity Potter & Brumfield Relays |