| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2900308 | RELAY GEN PURPOSE SPDT 50MA 48VGeneral Purpose with Socket Relay SPDT (1 Form C) DIN Rail | Phoenix Contact |
| 3 | JRE400100 | QUICK MOUNT, 4 POLERelay | Amphenol Pcd |
| 4 | PF113A | SOCKET RELAY 11PIN 5ARelay Socket DIN Rail | Omron Automation and Safety |
| 5 | R10-E1Y4-V185 | RELAY GEN PURPOSE 4PDT 3A 12VGeneral Purpose Relay 4PDT (4 Form C) 12VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 6 | 9290-12-20 | RELAY RF SPST 500MA 12V | Coto Technology |
| 7 | IAC-5A | INPUT MODULE AC 6MA 5VDCAC Input Module Output Module 18mA 5VDC Output 180 ~ 280VAC (240VAC Nom) Supply | TE Connectivity Potter & Brumfield Relays |
| 8 | DR-IAC5E | INPUT MODULE AC 5VDCAC Input Module Output Module 28mA 5VDC Output 18 ~ 36VAC (24VAC Nom) Supply | Sensata-Crydom |
| 9 | ARS34Y4HZ | RELAY RF SPDT 500MA 4.5V | Panasonic Electric Works |