| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | TQ2SL-L2-3V-Z | RELAY TELECOM DPDT 2A 3VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 3 | DS1E-SL2-DC5V | RELAY GENERAL PURPOSE SPDT 2A 5VGeneral Purpose Relay SPDT (1 Form C) Through Hole | Panasonic Electric Works |
| 4 | DS1E-M-DC12V | RELAY GEN PURPOSE SPDT 2A 12VGeneral Purpose Relay SPDT (1 Form C) Through Hole | Panasonic Electric Works |
| 5 | JRS400411 | QUICK MOUNT, 4 POLE WCRelay | Amphenol Pcd |
| 6 | 2820262 | TERM BLOCK 2POSRelay Socket DIN Rail | Phoenix Contact |
| 7 | MY4N DC12 (S) | RELAY GEN PURPOSE 4PDT 3A 12VGeneral Purpose Relay 4PDT (4 Form C) 12VDC Coil Socketable | Omron Automation and Safety |
| 8 | G7L-2A-X-L DC24 | RELAY PWR DPST 20A 24VDCGeneral Purpose Relay DPST-NO (2 Form A) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 9 | 70M-ODC5A | OUTPUT MODULE DC MINI 18MA 5VDCDC Output Module Output Module 0.02 ~ 3A 4 ~ 200VDC Output 5VDC (2.5 ~ 9VDC) Supply | Grayhill Inc. |