| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 7001438 | 8 PIN OCTALE RELAY SOCKETRelay Socket DIN Rail | Phoenix Contact |
| 3 | RSE116695-S | STAINLESS STEEL ALTERNATIVERelay | Amphenol Pcd |
| 4 | SH2B-05 | SOCKET DIN MOUNT SCREW TYPERelay Socket DIN Rail | IDEC |
| 5 | P2RF-05-S | SOCKET RELAY SCREWLESS G2R-1-SRelay Socket DIN Rail | Omron Automation and Safety |
| 6 | SP4-DC12V | RELAY GEN PURPOSE 4PDT 10A 12VGeneral Purpose Relay 4PDT (4 Form C) 12VDC Coil Socketable | Panasonic Electric Works |
| 7 | G2RL1ADC5BYOMB | RELAY GEN PURPOSE SPST 12A 5VGeneral Purpose Relay SPST-NO (1 Form A) 5VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 8 | 1415900-6 | RTB7D024Relay Coil | TE Connectivity Potter & Brumfield Relays |
| 9 | 2972945 | CONN TERM BLOCKI/O Module Rack Channel | Phoenix Contact |