| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 8690880000 | SCM 2CORelay Socket DIN Rail | Weidmuller |
| 3 | DK1A-9V-F | RELAY GEN PURPOSE SPST 10A 9VGeneral Purpose Relay SPST-NO (1 Form A) 9VDC Coil Through Hole | Panasonic Electric Works |
| 4 | NC2EBD-JP-DC12V | RELAY GEN PURPOSE DPDT 5A 12VGeneral Purpose Relay DPDT (2 Form C) 12VDC Coil Through Hole | Panasonic Electric Works |
| 5 | 2900066 | CONN TERM BLOCKI/O Module Rack Channel | Phoenix Contact |
| 6 | IACM-5 | INPUT MODULE AC 6MA 5VDCAC Input Module Output Module 18mA 5VDC Output 90 ~ 140VAC (120VAC Nom) Supply | TE Connectivity Potter & Brumfield Relays |
| 7 | 2611-12-321 | RELAY RF SPDT 250MA 12V | Coto Technology |
| 8 | G6ZK-1PE DC12 | RELAY RF SPDT 10MA 12V | Omron Electronics Inc-EMC Div |
| 9 | 2833550 | RELAY RETAINING BRACKETClip and Release Lever PR1 Series | Phoenix Contact |