| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | HC2-SFD-K | SOCKET SCRW W/CLIP FOR HC2 RELAYRelay Socket DIN Rail | Panasonic Electric Works |
| 3 | 1904045-2 | V23333Z1001A008-EV-000Relay | TE Connectivity Potter & Brumfield Relays |
| 4 | PF083A-E | SOCKET RELAY 8 OCTAL TRACK MNTRelay Socket DIN Rail | Omron Automation and Safety |
| 5 | NC4D-DC24V | RELAY GEN PURPOSE 4PDT 5A 24VGeneral Purpose Relay 4PDT (4 Form C) 24VDC Coil Socketable | Panasonic Electric Works |
| 6 | DSP1-DC24V-R-F | RELAY GEN PURPOSE DPST 5A 24VGeneral Purpose Relay DPST-NO/NC (1 Form A, 1 From B) 24VDC Coil Through Hole | Panasonic Electric Works |
| 7 | G5LE-1A DC12 | RELAY GEN PURPOSE SPST 10A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 8 | CA1A-12V-C-5 | RELAY AUTOMOTIVE SPST 30A 12V | Panasonic Electric Works |
| 9 | G3TB-IAZR02P-US AC100-240 | INPUT MODULE AC 5MA 4-32VDCAC Input Module Output Module 25mA 4 ~ 32VDC Output 100 ~ 240VAC Supply | Omron Automation and Safety |