Reference manual for the M21/M21A alarm telephone emitter, covering features, wiring, programming and operation.
The M21/M21A alarm telephone emitter provides four programmable alarm channels (robbery, assault, medical emergency, fire) with customizable tones, dialing modes and memory storage. It includes optional functions for the M21A version such as a real‑time timer, auxiliary output and a “SIGUEME” priority number.
The manual details hardware connections, power requirements (8‑18 VDC, 17 mA low‑power mode), programming steps for both user and installer modes, and advanced settings like call cycles, tone waiting time, prefix dialing and auto‑test functions. It also explains how to reset the unit, use the auxiliary output, and restore factory defaults. This manual is written in Spanish.
| Número de canales de disparo | 4 |
|---|---|
| Consumo en modo Low‑Power | 17 mA |
| Consumo en modo normal | 21 mA |
By default the unit uses pulse dialing at a speed of 10 pulses per second.