Linear VMC-1 manual Important DO’S & DON’TS

IMPORTANT DO’S & DON’TS

✔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.

Keep this manual in a safe place for future reference.

To replace this manual, download available from Linear Web site:www.linearcorp.com

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