| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | C93432 | RELAY TELECOM DPDT 2A 12VTelecom Relay DPDT (2 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 3 | RSE116686-S | STAINLESS STEEL ALTERNATIVERelay | Amphenol Pcd |
| 4 | SY2S-05C | SOCKET DIN MOUNT FINGERSAFERelay Socket DIN Rail | IDEC |
| 5 | RZ03-1A4-D012 | RELAY GEN PURPOSE SPST 16A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 6 | OMI-SS-112L,000 | RELAY GEN PURPRelay Coil | TE Connectivity Potter & Brumfield Relays |
| 7 | RT234024 | RELAY GEN PURPRelay Coil | TE Connectivity Potter & Brumfield Relays |
| 8 | G6D-1A-ASI-NPDC21 | RELAY GEN PURPOSE SPST 5A 21VGeneral Purpose Relay SPST-NO (1 Form A) 21VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 9 | G4W-1112P-US-TV8-HP-DC12 | RELAY GEN PURPOSE SPST 15A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | Omron Electronics Inc-EMC Div |