| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | AGN200S4HZ | RELAY TELECOM DPDT 1A 4.5VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | 2950695 | RELAY MODULE 4PDTRelay Socket DIN Rail | Phoenix Contact |
| 4 | JRS500111 | QUICK MOUNT, 5 POLE WCRelay | Amphenol Pcd |
| 5 | 185403-3 | MODULAR RELAY HOLDERRelay | TE Connectivity Potter & Brumfield Relays |
| 6 | R10S-E2Y1-J1.0K | RELAY GENERAL PURPOSE SPDT 3A 5VGeneral Purpose Relay SPDT (1 Form C) 5VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | 2282091 | I/O MOUNTING BOARDI/O Module Rack 4 Channel | Phoenix Contact |
| 8 | ARE1312 | RELAY RF SPDT 500MA 12V | Panasonic Electric Works |
| 9 | 9002-12-10 | RELAY RF SPST 500MA 12V | Coto Technology |