DO
ensure that all instructions have been followed before power is applied to
system.
DO
use only M&S systems brand cable (except for Cat-5 & RG-6) as called
out in these instructions. The cable is designed and constructed with electrical
specifi cations necessary for proper audio performance.
DO
use only a damp cloth to clean the exterior plastics on the dmc1 master and
room stations. DO NOT use liquid or aerosols.
DO
make gradual bends of the cable where necessary -- no sharper than 1” radius.
DO
dress the cables neatly with cable ties or Velcro™ wraps. Use loose or
moderate pressure.
DO
use cable-pulling lubricant only for cable runs that may otherwise require great
force to install. When cable lubricant is used, read the instructions to be sure it is
compatible with the cable jacket material (PVC or FEP).
DO
avoid stressing cable conductors, limit pulling tension to 25 pounds or less
as specifi ed by EIA/TIA-568A standard. Pull cables gradually and with constant
tension, taking care not to crush or pinch bundles.
DO
use grommets to protect the cable where passing through metal studs or
anything that can possibly damage them.
DO
test every installed cable run with a cable tester. “Toning” alone is not
acceptable.
DO
label every termination point. Use a unique identifi er for each cable run. It will
make moves, adds, changes, and troubleshooting easier.
DO
support horizontal cable bundles using board supports, J-hooks, or cable trays.
DO
have signal cables cross at right angles to power cables to minimize induced
interference.
DO
always obey all local and national fi re and building codes. Be sure to “fi restop”
all cables that penetrate a fi rewall. Use plenum-rated cable where mandated.
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DO
follow the grounding and bonding requirements established by Electrical Code
TIA standard 607, and equipment manufacturer’s specifi cations.
DO NOT
locate the dmc1 master or room stations in an exterior wall.
DO NOT
locate the dmc1 master or room stations in any wall cavity with any other
electrical wiring in the cavity.
DO NOT
attach non line-level audio devices or non M&S authorized equipment to
the system.
DO NOT
power up master until all speakers and stations are connected.
DO NOT
splice or repair cables damaged during wire pulling, install a new cable.
DO NOT
coil or bundle the cables. This can cause electronic feedback.
DO NOT
over-tighten the screws for the volume controls, speakers, or the intercom
master to prevent cracking.
DO NOT
install any station or speaker cables inside the 120 VAC transformer
enclosure.
DO NOT
tie cables to electrical conduits or lay cables on electrical fi xtures. Keep
cables at least 16” away from fl uorescent lights, HID light fi xtures, or dimmers.
DO NOT
allow the cable to be sharply bent or kinked at any time.
DO NOT
install cables “taught” in the ceiling or elsewhere. A good installation
should have cables loose, but never sagging.
DO NOT
run signal cables parallel to power cables without adequate separation to
minimize induced interference.
DO NOT
exert more than 25 pounds of tension on 4-pair cables.
DO NOT
step on Cat-5 cable during installation.
DO NOT
overtighten the cable ties, apply cable ties loosely, with random spacing.
DO NOT
untwist the wire pairs in Cat-5 cable more than 1/2” to avoid crosstalk.
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IMPORTANT DO’S & DON’TS
A licensed electrician must run a 120 VAC line from
A DEDICATED 15-AMP
BREAKER
to the dmc1 (and dmc1CD, if equipped) transformer.
Use Cat-5 wire for all dmc1 wire runs excluding door station and remote power
amplifi er runs. For door stations, use the M&S Systems brand MS4DCXSC wire
that is included with the dmc1H or dmc1HC wall housing kits.
Individual wire runs should not exceed 350 feet from any single room or door
station to the dmc1 master or 1000 feet total for the entire system.
Label all wire runs. Connecting the wires to the dmc1 master, room station, or
door station incorrectly may result in system damage.
Run a single cable from the master unit location to each room station and door
station in a “home run” fashion. Do not loop cable from one room station to
another.
DO NOT STAPLE CABLES.
Staples cause shorts.
DO NOT SPLICE CABLES.
Splices are unreliable and defeat the signal
isolation properties of the cable.
KEEP CABLES AT LEAST 18 INCHES FROM FLUORESCENT LIGHT
FIXTURES, DIMER CONTROLS, AND ALL OTHER WIRING.
This includes
AC wiring, security cable, and other control wires. These can cause a “hum” or
“buzzing” sound.
Keep cables away from objects such as heating and air conditioning ducts,
metal construction plates, and anything else with sharp edges that can damage
the cables.
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Careful consideration should be used when determining the location
of the room stations.
DO NOT
install these devices in the following
locations:
DO NOT
install room stations near air return ducts.
DO NOT
install room stations in exterior walls. Insulation materials will change
speaker range and effi ciency. Temperature changes in the wall will reduce
speaker life.
DO NOT
install room stations in saunas. They will not withstand the extreme
heat and moisture.
DO NOT
install room stations underneath cabinets or over counter tops.
DO NOT
install room stations in stud cavities with other wiring or appliances.
DO NOT
install room stations within 10 feet of other room stations or the dmc1
master unit. This will cause acoustical feedback.
DO NOT
install room stations in stud cavities with other room stations or the
dmc1 master unit. This will cause acoustical feedback.
DO NOT
install room stations facing each other room stations or the dmc1
master unit. This will cause acoustical feedback.
Be sure that all room station mounting rings are level and oriented
as shown in these instructions.
Failure to adhere to these instructions can cause equipment
malfunction and void any warranty covered by Linear LLC.
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WIRING CAUTIONS
ROOM STATION CAUTIONS
T
ABLE OF CONTENTS
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation Rough-in kits . . . . . . . . . . . . . . . . . . . . . . . . 1
Wall Housing Installation . . . . . . . . . . . . . . . . . . . . . . . . 2
Transformer Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2
Antenna Rough-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Room Station Rough-in . . . . . . . . . . . . . . . . . . . . . . . . . 3
Patio Station Rough-in . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Door Station Rough-in . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mono Music Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . 4
External Music Source . . . . . . . . . . . . . . . . . . . . . . . . . 5
Stereo Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Stereo Music Speakers . . . . . . . . . . . . . . . . . . . . . . . . . 5
Door Release Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
