| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | SH2B-62 | SOCKET PCB MOUNT FOR RH2BRelay Socket Through Hole | IDEC |
| 3 | HC3-SFD-K | SOCKET SCRW W/CLIP DIN HC3 RELAYRelay Socket DIN Rail | Panasonic Electric Works |
| 4 | MJN2C-DC12 | RELAY GEN PURPOSE DPDT 10A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Socketable | Omron Automation and Safety |
| 5 | ALE12B24 | RELAY GEN PURPOSE SPST 16A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Panasonic Electric Works |
| 6 | SP4-PL2-DC5V | RELAY GEN PURPOSE 4PDT 10A 5VGeneral Purpose Relay 4PDT (4 Form C) 5VDC Coil Through Hole | Panasonic Electric Works |
| 7 | T9AV5D12-24 | RELAY GEN PURPOSE SPDT 20A 24VGeneral Purpose Relay SPDT (1 Form C) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 8 | T90N5D12-18 | RELAY GEN PURPOSE SPDT 20A 18VGeneral Purpose Relay SPDT (1 Form C) 18VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 9 | ACVN51212 | RELAY AUTOMOTIVE SPST 35A 12V | Panasonic Electric Works |