| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275EU | MTRAK M275 EVENT UNIT | Digi International |
| 2 | AGN200A12Z | RELAY TELECOM DPDT 1A 12VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | 27E928 | SOCKET RELAY DP-5P SOLDERRelay Socket Panel Mount | TE Connectivity Potter & Brumfield Relays |
| 4 | G5RL-K1A-E-DC24 | RELAY PWR LATCH SPST 16A 24VDCGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 5 | G5LE-1A-E DC24 | RELAY GEN PURPOSE SPST 16A 24VGeneral Purpose Relay SPST-NO (1 Form A) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 6 | T90S5D42-24 | RELAY GEN PURPOSE SPDT 20A 24VGeneral Purpose Relay SPDT (1 Form C) 24VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 7 | OJE-SH-112HM,000 | RELAY GEN PURPOSE SPST 10A 12VGeneral Purpose Relay SPST-NO (1 Form A) 12VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |
| 8 | CB1A-M-24V | RELAY AUTOMOTIVE SPST 20A 24V | Panasonic Electric Works |
| 9 | 70-IDC5NP | INPUT MODULE AC/DC 18MA 5VDCAC/DC Input Module Output Module 10mA 5VDC Output 15 ~ 32VAC, 10 ~ 32VDC Supply | Grayhill Inc. |