User guide

Overview
DCM-1 User Manual v1.0 9
LE-1
The LE-1 is an input connector plate which can be installed
wherever required. Versions are available to t standard UK,
US or Australian dual-gang electrical back boxes. It allows
connection of a stereo unbalanced line-level audio source,
such as a portable music centre, laptop, radio mic receiver
or similar, and connects to one of the DCM-1’s Extension
Ports with a single screened CAT-5 cable.
Multiple LE-1s may be “daisy-chained” together to provide
input points at different locations in the same zone. Signals
applied to plates wired in this way will be summed together.
An internal gating circuit on each plate automatically
“disconnects” any chained plates which are not in use, to
minimise noise contribution.
The LE-1’s inputs are electronically buffered to minimise
noise and interference pickup, and input gain is locally
adjustable with a preset control. Two types of input
connector are provided for user convenience: dual phono
sockets and a 3.5mm stereo jack socket; ±12dB of gain trim
adjustment is available on the faceplate.
Once connected, any audio connected to an LE-1 is treated
as any other source and can be routed to any zone in the
same manner.
BE-1
The BE-1 is an input connector plate of similar type to the
LE-1. It provides a stereo balanced line-level input, permitting
professional audio equipment such as mixing consoles, DI
boxes or broadcast equipment to be connected. Like the LE-
1, it connects to one of the DCM-1’s Extension Ports with a
single screened CAT-5 cable.
BE-1s may be daisy-chained in the same way as LE-1s, and
the two types of plate may be intermixed.
Two industry-standard latching 3-pin female XLR connectors
are tted.
Once connected, any audio connected to the BE-1 is treated
as any other source and can be routed to any zone in the
same manner.