BFM 400 Microphones
Operating Instructions
BFM400 Operation Manual issue 7
1
1 Introduction
The BFM400 range of intelligent Fire Microphones are designed
to provide a wide variety of features to suit any installation.
Figure 1.1 — Typical BFM401 Microphone
The multi - zone Microphones (BFM404 & BFM408)
communicate with the main control system via an RS485
communications link.
The single zone BFM401 can be set to connect via RS485 or via a
parallel hard - wired connection.
