Linear VMC-1 User Manual

 

✔ 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 specifi ed wires 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 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 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 re-stop” all cables that penetrate a fi re-
wall. 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. 

 

✔ DO keep cables at least 18 inches from fl uorescent light 

fi xtures, 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 specifi cations.

 

✔ 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 stations or the 

intercom Master Station 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. 

 

✔ 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 1/2” 

to avoid crosstalk.

IMPORTANT DO’S & DON’TS