Kidde VM-1 Technical Reference Manual

Chapter 5: Installation
84 P/N 3101890-EN • REV 006 • ISS 21JUN18
Figure 24: VM-PMI Paging Microphone Interface and VM-MFK Fire Fighter Telephone
(1) VM-PMI Paging Microphone Interface and VM-MFK Fire Fighter Telephone
Digital audio wiring
The control panel supports up to three ACHS Audio Channel Selector cards that convert digital audio from an
EAEC card into an analog preamp signal. The audio riser consists of a single pair (Class B) or two pairs (Class A
or Class X) of wires that connect together all SIGA-AA30/50 amplifiers housed in a separate cabinet. Since the
digital signals are multiplexed, any of independent audio sources can be directed to any amplifier connected to
the network. All command and control signals for the audio system are distributed over the network data riser.
See the ACHS Audio Channel Selector Installation Sheet (P/N 3101791-EN) for installation and specifications.
(1)

Kidde VM-1 Specifications

General

Brand	Kidde
Model	VM-1
Category	Fire Alarms
Language	English