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IL603 Tek-SELECT

II Manual • Page 1

Section 1.0 — SYSTEM INSTALLATION

1.1 Installation Procedure

1. Read instructions to determine equipment location and

installation method.

2. Install housings and wiring.

3. Check and connect wiring.

4. Program masters and install stations.

5. Check operation.

1.2 Planning and Equipment Location

NOTE: Do not locate any intercom components or wiring within
3 feet (1 meter) of motors, transformers, fluorescent lights, dim-
mer switches, electrical wiring or other sources of electrical
interference.

NOTE: It is recommended that special consideration be given
to the system cabling if electromagnetic interference (EMI) or
radio frequency interference (RFI) presents a potential interfer-
ence problem at a jobsite. The system cabling should be
shielded—or in extreme cases installed in metallic conduit—to
provide protection from extraneous signals or noise. If EMI
(AC hum, ESD, computer or telephone data noise, etc.) and RFI
interference sources are in physical contact (for example, inter-
com cable is placed on top of AC wiring), then standard
shielded cable protection may be negated.

NOTE: TekTone

is not responsible for interference resulting

from improper installation.

Masters and Remotes:

1. Do not locate masters near any source of direct heat,

extreme cold, or in areas exposed to dust, oil, chemicals
or excess humidity. Locate stations where they will be
convenient to use. If wall mounted, locate at convenient
operating height.

2. Do not locate stations close to each other (separate

rooms are preferred).

3. Do not locate flush mounted stations back to back on a

common wall.

Power Supply and Relays:

Locate the power supply and other central equipment near
the center of the master-to-master cable run and where
convenient for service.

Do not locate units near any source of direct heat or extreme
cold.

Transformer:

The transformer must be provided with 115 VAC electrical
power. Locate the transformer within 50 feet (15 meters) of
the power supply, and at least 3 feet (1 meter) from master
stations, remote stations and intercom wiring.

Do not locate transformers near any source of heat.

Do not connect transformer to power source until wiring is
complete. Observe all local and national electrical codes.

Music System:

Locate music system according to the instructions supplied
with the system. If any area requires music without intercom,
the music system may be located in that area.

1.3 System Housings

IH102

Flush mounting ring for indoor remotes

IH110R

Flush mounting ring for SM406 and SM411 masters

IH400A

Desk cabinet for SM401 and indoor remotes

IH401

Desk cabinet for SM404, SM406 and SM411

1.4 Wiring Installation

Master Stations:

Master stations may be loop wired.

Note: Due to common impedance coupling, tone signals
may be amplified and heard by master stations monitoring
other stations. With long wires, this interference may be
quite loud. This effect may be reduced by using two
conductors for the terminal C wire, by using the next larger
size conductor (#20 instead of #22), or by wiring the system
in a star pattern, so that all stations home run to the central
equipment (power supply) location.

If all call relay is not used, limit length of cable as follows:

Wire Size

Maximum Total Cable Length

#22

500 feet (150 meters)

#20

800 feet (240 meters)

#18

1200 feet (360 meters)

If the all call relay is used, limit length of cable as follows:

Wire Size

Maximum Total Cable Length