| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | TQ2-L2-12V | RELAY TELECOM DPDT 1A 12VTelecom Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 3 | RSN116810 | 2 POLE/10 AMP, NON ENVIRONMENTALRelay | Amphenol Pcd |
| 4 | RSE116701 | LOW PROFILE, 2 POLE/10 AMP, WCRelay | Amphenol Pcd |
| 5 | 2833563 | RELAY SKT DPDT OR 4PDT DIN RAILRelay Socket DIN Rail | Phoenix Contact |
| 6 | RU4S-C-A24 | RELAY PLUG-IN 4PDT 6A 24VACGeneral Purpose Relay 4PDT (4 Form C) 24VAC Coil Socketable | IDEC |
| 7 | 70M-IAC24A | INPUT MODULE AC 6MA 24VDCAC Input Module Output Module 10mA 24VDC Output 180 ~ 280VAC (240VAC Nom) Supply | Grayhill Inc. |
| 8 | 70-IDC24 | INPUT MODULE DC 18MA 24VDCDC Input Module Output Module 10mA 24VDC Output 3 ~ 32VDC Supply | Grayhill Inc. |
| 9 | 2833592 | RELAY RETAINING BRACKETClip and Release Lever PR2 Series | Phoenix Contact |