| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-VCS1CL | VOICE CALL SWITCH W/ 1M CABLE | Digi International |
| 2 | 18837 | RELAY SOCKETRelay | Curtis Industries |
| 3 | RP78602 | SOCKET PCB TERMINAL RT SERIESRelay Socket Through Hole | TE Connectivity Potter & Brumfield Relays |
| 4 | MY4H-US AC110/120 | RELAY GEN PURPOSE 4PDT 3A 120VGeneral Purpose Relay 4PDT (4 Form C) 120VAC Coil Socketable | Omron Automation and Safety |
| 5 | DK1A-9V-F | RELAY GEN PURPOSE SPST 10A 9VGeneral Purpose Relay SPST-NO (1 Form A) 9VDC Coil Through Hole | Panasonic Electric Works |
| 6 | PB-32SM | I/O MOUNTING BOARD MINI 32POSI/O Module Rack 32 Channel | Sensata-Crydom |
| 7 | PB-32C4 | I/O MOUNTING BOARD C4 32POSI/O Module Rack 32 Channel | Sensata-Crydom |
| 8 | 73G-OV5 | I/O MODULE 0-5VDC 12-BIT;1.22MVAnalog Output Module Output Module Output Supply | Grayhill Inc. |
| 9 | CB1V-24V | CB RELAY 1 FORM C 35A 24V | Panasonic Electric Works |