| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2903335 | RELAY GEN PURPOSE SPDT 50MA 230VGeneral Purpose with Socket Relay SPDT (1 Form C) DIN Rail | Phoenix Contact |
| 3 | TQ2SA-4.5V | RELAY TELECOM DPDT 2A 4.5VTelecom Relay DPDT (2 Form C) Surface Mount | Panasonic Electric Works |
| 4 | RSE500301 | SMITHSRelay | Amphenol Pcd |
| 5 | SJ2S-07LW | FINGERSAFE DIN SOCKET FOR RJ2Relay Socket DIN Rail | IDEC |
| 6 | 2963747 | SAFETY RELAY DIN RAIL MOUNT 24VSafety Relay 7PST-NO/NC (5 Form A, 2 Form B) 24VAC/DC Coil DIN Rail | Phoenix Contact |
| 7 | 5542741 | RELAY GEN PURPOSE DPDT 5A 12VGeneral Purpose with Socket Relay DPDT (2 Form C) 12VDC Coil DIN Rail | Phoenix Contact |
| 8 | KRPA-11DN-24 | RELAY GEN PURPOSE DPDT 10A 24VGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Socketable | TE Connectivity Potter & Brumfield Relays |
| 9 | V23092-A1060-A301 | RELAY GEN PURPOSE SPDT 6A 60VGeneral Purpose Relay SPDT (1 Form C) 60VDC Coil Through Hole | TE Connectivity Potter & Brumfield Relays |