| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2820990 | CONN TERM BLOCKRelay | Phoenix Contact |
| 3 | 1904045-2 | V23333Z1001A008-EV-000Relay | TE Connectivity Potter & Brumfield Relays |
| 4 | G2RL-1A-E DC18 | RELAY GEN PURPOSE SPST 16A 18VGeneral Purpose Relay SPST-NO (1 Form A) 18VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 5 | 2967086 | RELAY GEN PURPOSE DPDT 6A 120VGeneral Purpose with Socket Relay DPDT (2 Form C) 120VAC/DC Coil DIN Rail | Phoenix Contact |
| 6 | 18782B200 | RELAY GEN PURPOSE DPDT 20A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | DK1A-L2-5V-F | RELAY GEN PURPOSE SPST 10A 5VGeneral Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole | Panasonic Electric Works |
| 8 | 2-1462051-3 | RELAY RF SPDT 2A 5V | TE Connectivity Potter & Brumfield Relays |
| 9 | ARE134H | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |