| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | G6S-2G DC24 | RELAY TELECOM DPDT 2A 24VTelecom Relay DPDT (2 Form C) Surface Mount | Omron Electronics Inc-EMC Div |
| 3 | 1-1462039-5 | RELAY TELECOM DPDT 2A 3VTelecom Relay DPDT (2 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 4 | RSL116064 | EXTENDED HEIGHT, 2 POLE/10 AMP,Relay | Amphenol Pcd |
| 5 | RSE116684-S | STAINLESS STEEL ALTERNATIVERelay | Amphenol Pcd |
| 6 | SP4-DC12V | RELAY GEN PURPOSE 4PDT 10A 12VGeneral Purpose Relay 4PDT (4 Form C) 12VDC Coil Socketable | Panasonic Electric Works |
| 7 | RY2KS-UDC24V | RELAY PLUG-IN DPDT 3A 24VDCGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Socketable | IDEC |
| 8 | 70RCK24 | I/O MOUNTING BRD STANDARD 24POSI/O Module Rack 24 Channel | Grayhill Inc. |
| 9 | PB4 | I/O MOUNTING BOARD STANDARD 4POSI/O Module Rack 4 Channel | Sensata-Crydom |