| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275EU | MTRAK M275 EVENT UNIT | Digi International |
| 2 | 6-1462037-4 | RELAY TELECOM DPDT 2A 9VTelecom Relay DPDT (2 Form C) Surface Mount | TE Connectivity Potter & Brumfield Relays |
| 3 | JRE400300 | QUICK MOUNT, 4 POLERelay | Amphenol Pcd |
| 4 | 2980018 | PLC-BSC125DC/21Relay Socket DIN Rail | Phoenix Contact |
| 5 | 2967811 | PLC-HC BASIC TERM BLOCK 120VRelay Socket DIN Rail | Phoenix Contact |
| 6 | SH3B-05 | SOCKET DIN MOUNT SCREW TYPERelay Socket DIN Rail | IDEC |
| 7 | R10-E1X2-115V | RELAY GEN PURPOSE DPDT 5A 115VGeneral Purpose Relay DPDT (2 Form C) 115VAC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 8 | 2963802 | RELAY SAFETY 4PST 6A 24VSafety Relay SPST-NO (1 Form A) x 4 24VAC/DC Coil DIN Rail | Phoenix Contact |
| 9 | PT580615 | RELAY GEN PURPOSE 4PDT 6A 115VGeneral Purpose Relay 4PDT (4 Form C) 115VAC Coil Socketable | TE Connectivity Potter & Brumfield Relays |