PAGE
The long runs from amplifier to speaker
typically found in multi-zone installations
demand heavy gauge, low resistance
speaker wire. Small diameter wire
reduces effective amplifier power and
adds substantial distortion to the audio
signal. Avoid problems by following
these minimum recommendations:
Under 20 m
➠
QED 42 STRAND
0.75mm
2
(minimum)
More than 20 m
➠
QED QUDOS
2.5mm
2
Loudspeaker runs over 100m are
discouraged.
4.13 Preamp Outputs
Two PHONO jacks (Left and Right
Channel) labelled “Pre-out” provide line
level output controlled by the
corresponding zone command devices. If
a zone requires additional amplification,
use PHONO-PHONO shielded
interconnects from these outputs to a
separate power amplifier’s unbalanced
line inputs.
Each zone’s preamp output is fully
buffered and may be used either
independently or with the S4.3
Controller’s internal amplifiers to provide
additional flexibility for demanding
installations.
The Pre-amp output can also be
configured as a fixed level output,
independent of the zone’s volume level.
See Section 5.6 Configuring the Pre-Out
Sockets.
4.14 Data Cable Connections
Data communication to and from the S4.3
Controller and the remote zone’s DMS
module and KMS keypads is via 6-
conductor shielded cable. We recommend
QED CAT-5 FTP Systemline Cable.
(Note
that the IDC connectors only accept cable
with 26 awg conductors.)
We also recommend that you run each
zone’s data cable and speaker cables
together to save time. There is absolutely
no performance penalty for doing so.
The shield is absolutely essential in
maintaining data integrity over the long
runs between the controller/amplifier and
Section 4 • Installation Guide
Connectors for the DMS modules and KMS
keypads should be wired to follow the same
color coding.
The supplied IDC/Methode connectors need
to be 'crimped' to lock to the data cable’s 26
gauge conductors. IDC tools are available
separately.
NOTE: Do not use a screwdriver, metal ruler
or knife blade to “crimp” these connections.
You may think these tools will work but you
will be mistaken. USE THE DEDICATED IDC
TOOL SPECIFICALLY DESIGNED FOR THESE
CONNECTORS.
• Strip about 40 to 50 mm of the outer cable
insulation using a wire stripper, cutting pliers
or sharp knife.
a zone’s control code generating devices.
Make sure that the shield is firmly
connected at both the S4.3 Controller and
at any command device terminal.
NOTE: Only one data cable needs to run
from the S4.3 Controller to each zone.
Multiple DMS module and keypad
combinations in one zone should be
wired via series connections as detailed
in Section 4.3.
The maximum data cable length for
guaranteed operation is 100 m. Even
longer lengths may be practical in some
installations with low RF (Radio
Frequency) and EMI (Electro-magnetic
interference).
DATA CONNECTOR
WIRING CODE
Pin 1 • green & drain
Pin 2 • white with green stripe
Pin 3 • Orange
Pin 4 • white with orange stripe
Pin 5 • blue
Pin 6 • white with blue stripe
Connections are made in
the same order at both ends
of the cables.
WARNING: ONLY USE
CORRECT IDC TOOL
(SL-IDC)
1 2 3 4 5 6
13
