| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 4-1393809-4 | RELAY GEN PURPOSE DPDT 5A 48VGeneral Purpose Relay DPDT (2 Form C) 48VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 3 | DE1A-12V | RELAY GEN PURPOSE SPST 10A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | Panasonic Electric Works |
| 4 | P7TF-OS16-1 DC12-OLD | RELAY BLK OUTBASE ONLY 12VDCI/O Module Rack Channel | Omron Automation and Safety |
| 5 | ARS14A09X | ARS RELAY 1 FORM C 9V | Panasonic Electric Works |
| 6 | CB1AVF-D-12V | CB RELAY 1 FORM A 35A 12V | Panasonic Electric Works |
| 7 | ARA210A24 | RELAY RF DPDT 1A 24V | Panasonic Electric Works |
| 8 | G3PE-225B-3N DC12-24 | RELAY SSR 25A 3PH DIN MNT 3PL | Omron Automation and Safety |
| 9 | PM2260A50VH | RELAY SSR 600V 50A PNL MNT | Sensata-Crydom |