| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-VCS1CL | VOICE CALL SWITCH W/ 1M CABLE | Digi International |
| 2 | DS2E-SL2-DC48V | RELAY GEN PURPOSE DPDT 2A 48VGeneral Purpose Relay DPDT (2 Form C) Through Hole | Panasonic Electric Works |
| 3 | V23101D 6A201 | RELAY GEN PURPOSE SPDT 1.25A 12VGeneral Purpose Relay SPDT (1 Form C) Through Hole | TE Connectivity Potter & Brumfield Relays |
| 4 | 2901873 | RIF-0-BPT/1Relay | Phoenix Contact |
| 5 | SH1B-05 | SOCKET DIN MOUNT SCREW TYPERelay Socket DIN Rail | IDEC |
| 6 | HC2-SFD-S | SOCKT SCRW W/CLIP SLIM HC2 RELAYRelay Socket DIN Rail | Panasonic Electric Works |
| 7 | DK1A1B-L2-12V | RELAY GEN PURPOSE DPST 8A 12VGeneral Purpose Relay DPST-NO/NC (1 Form A, 1 From B) 12VDC Coil Through Hole | Panasonic Electric Works |
| 8 | 2904-05-421 | RELAY RF SPST 500MA 5V | Coto Technology |
| 9 | 70RCK32-HL | I/O MOUNTING BRD STANDARD 32POSI/O Module Rack 32 Channel | Grayhill Inc. |