Simplex 4003-9803 — remote microphone assembly on a two-gang plate with keyswitch, push-to-talk switch and ready-to-talk LED, for 4100ES and 4100U voice systems.
A remote microphone lets a responder page the building from somewhere other than the audio control panel, as UFC mass notification asks for. It is a complete microphone station, not a panel card; what it depends on is the panel end, since its control wiring lands on a 4100-1290 24-Point I/O Module.
- Faceplate marked EMERGENCY PAGING, with an OFF and ON keyswitch, a push-to-talk switch and a green READY TO TALK LED
- 24 VDC from the 4100-1290 I/O Module; 25 mA maximum in use
- 18 AWG twisted shielded pair for the microphone, plus five wires
- Mounts on a double-gang box of 2 in. minimum depth, by others; screws included
- 32 to 120 °F, to 93% RH; installation instructions are document 579-881
A standard 4100ES or 4100U system supports five remote microphones, and each 4100-1274 Multiplex Module turns one input into eight, to 40 total. Do not confuse this with 4100-1244, the remote microphone module fitted in an annunciator front panel.