| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | AGQ20TA12X | RELAY GEN PURPOSE DPDT 2A 12VGeneral Purpose Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | TX2-24V-1 | RELAY TELECOM DPDT 1A 24VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 4 | 26532706 | CONTROL DIN RAIL SOCKET 4 POLERelay Socket DIN Rail | Crouzet |
| 5 | 2980018 | PLC-BSC125DC/21Relay Socket DIN Rail | Phoenix Contact |
| 6 | 1904045-7 | V23333Z0002B049-EV-000Relay | TE Connectivity Potter & Brumfield Relays |
| 7 | HC1-SS-K | SOCKET SLD TAB/CLIP HC1 RELAYSRelay Socket Panel Mount | Panasonic Electric Works |
| 8 | KUMP-14D18-12 | RELAY GEN PURPOSE 3PDT 15A 12VGeneral Purpose Relay 3PDT (3 Form C) 12VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 9 | 2903315 | RELAY GEN PURPOSE DPDT 10A 24VGeneral Purpose with Socket Relay DPDT (2 Form C) 24VDC Coil DIN Rail | Phoenix Contact |