Linear m&s VMC1 Instructions Manual page 3

✔ DO ensure that all instructions have been followed before
power is applied to system. The installation shall be carried
out in accordance with all applicable installation rules.
✔ DO use only Cat-5 & RG-6 and specified wires called out in
these instructions. The cable is designed and constructed
with electrical specifications necessary for proper audio
performance.
✔ DO use only a damp cloth to clean the exterior plastics on
the VMC1 Master Station 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 specified 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 identifier
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 fire and building
codes. Be sure to "firestop" all cables that penetrate a
firewall. Use plenum-rated cable where mandated.
✔ DO have a licensed electrician to run a 120 VAC line from
A DEDICATED 15-AMP BREAKER to the VMC1 power
supply.
✔ DO Use Cat-5 wire for all VMC1 wire runs.
✔ DO label all wire runs. Connecting the wires to the VMC1
master, room station, or door station incorrectly may result
in system damage.
✔ DO NOT STAPLE CABLES. Staples cause shorts.
✔ DO NOT SPLICE CABLES. Splices are unreliable and
defeat the signal isolation properties of the cable.
Keep this manual in a safe place for future reference. To replace this manual, download available from
IMPORTANT DO'S & DON'TS
www.linearcorp.com
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✔ DO keep cables at least 18 inches from flourescent light
fixtures, Dimmer controls, and all other wiring. This includes
AC wiring, security cable, and other control wires. These can
cause a "hum" or "buzzing" sound.
✔ DO 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.
✔ DO follow the grounding and bonding requirements
established by Electrical Code TIA standard 607, and
equipment manufacturer's specifications.
✔ DO NOT locate the VMC1 Master Station or Room Stations
on an exterior wall.
✔ DO NOT locate the VMC1 Master Station 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 Station until all 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 intercom Master
Station to prevent cracking.
✔ DO NOT install any station inside the 120 VAC transformer
enclosure.
✔ DO NOT tie cables to electrical conduits or lay cables
on electrical fixtures. Keep cables at least 16" away from
fluorescent lights, HID light fixtures, or dimmers.
✔ DO NOT allow the cable to be sharply bent or kinked at any
time.
✔ DO NOT install cables "taut" anywhere. Good installation
should have cables loose, but never sagging.
✔ DO NOT run signal and power cables parallel without
adequate separation to minimize 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
necessary to avoid crosstalk.
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