MP-9918I telephone interface is an automatic answer and hang-up telephone interface that can be used to answer ordinary telephones, external telephones, P.A. systems, etc., and can manually answer the phone on the front panel and communicate with the inner mic microphone on the rear panel.
The MP-9918I Telephone Interface is a device that connects telephone lines to a public address system, offering automatic call pickup, auto‑hang‑up, and conference call capabilities. It includes built‑in microphone and speaker, audio output, line input, and an activating short‑circuit output for triggering other equipment.
This manual describes the front and rear panel controls, wiring diagrams for normal and conference connections, operating modes (auto and manual), safety precautions, and detailed technical specifications such as power requirements, dimensions, and weight.
| Audio Output / Line Input | 0 dBV |
|---|---|
| Microphone & Speaker | Built‑in |
| Activating Output | Short circuit signal |
| Power Requirement | AC 220–240 V / 50–60 Hz |
| Dimensions | 485×88×375 mm |
| Gross Weight | 6.5 kg |
| Net Weight | 5.2 kg |
Press the Manual button on the front panel to pick up a call and press it again to hang up.
The device requires AC 220–240 V at 50–60 Hz.