| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 7004570 | RMOB-JR-2-110ACRelay Socket DIN Rail | Phoenix Contact |
| 3 | 1393824-4 | RELAY SOCKET SOLDER SIZE IRelay Socket Panel Mount | TE Connectivity Potter & Brumfield Relays |
| 4 | IAC-5 | INPUT MODULE AC 6MA 5VDCAC Input Module Output Module 18mA 5VDC Output 90 ~ 140VAC (120VAC Nom) Supply | TE Connectivity Potter & Brumfield Relays |
| 5 | 70-IDC15NP | INPUT MODULE AC/DC 18MA 15VDCAC/DC Input Module Output Module 10mA 15VDC Output 15 ~ 32VAC, 10 ~ 32VDC Supply | Grayhill Inc. |
| 6 | G9SA-EX031-T30 | RELAY SAFETY EXP UNIT 3PExpansion Module G9SA Series | Omron Automation and Safety |
| 7 | CB1F-WM-24V | RELAY AUTOMOTIVE SPDT 20A 24V | Panasonic Electric Works |
| 8 | CB1AH-R-24V | CB HIGH CAP WITH RESISTOR 24V CO | Panasonic Electric Works |
| 9 | WAU120-1000T-SG | AC/AC WALL MNT ADAPTER 12V 1A12VAC 1A AC/AC External Wall Mount (Class I) Adapter Fixed Blade Input | Triad Magnetics |