| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2900443 | TERM BLOCK INTERFACERelay Socket DIN Rail | Phoenix Contact |
| 3 | LKT1AF-9V | RELAY GEN PURPOSE SPST 5A 9VGeneral Purpose Relay SPST-NO (1 Form A) 9VDC Coil Through Hole | Panasonic Electric Works |
| 4 | SDT-S-112LMR,000 | RELAY GEN PURPOSE SPST 5A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 5 | CB1A-M-24V | RELAY AUTOMOTIVE SPST 20A 24V | Panasonic Electric Works |
| 6 | RP1-4.5V | RELAY RF SPDT 100MA 4.5V | Panasonic Electric Works |
| 7 | CB1F-WM-24V | RELAY AUTOMOTIVE SPDT 20A 24V | Panasonic Electric Works |
| 8 | WAU200-600-G | AC/AC WALL MNT ADAPTER 20V 600MA20VAC 600mA AC/AC External Wall Mount (Class I) Adapter Fixed Blade Input | Triad Magnetics |
| 9 | 8773490000 | MI 8DI-Z SUBD PLUG IN CONNInterface Module MICRO Series | Weidmuller |