Telex sc-600 instruction sheet Rack Mounting, Coax Cable

Antenna Placement

for Optimum Range and Rack Mounting

For maximum range and when rack mounting, the antennas must be remotely located.

The ALP-450 and ALP-600 antennas come com- plete with a variety of mounting hardware and 10 feet (3 meters) of low loss coaxial cable. A combination mounting bracket with 10 feet of coaxial cable is available for the 1/2 wave an- tenna (Model No. AB-2).

Antennas should be placed in a location with a clear “signal path” to the transmitter. This “path” should be as short and free of obstruc- tions as possible. Obstructions, such as walls ceilings, and metal objects, will reduce range and performance.

Figure 7

Rack Mounting

Rack Mounting

NOTE: The SC-600 should always be mounted on the bottom of the rack to fully support the chassis. Failure to do this may re- sult in damage to the SC-600.

Rack mount brackets are supplied with the SC-600. To attach the brackets, proceed as fol- lows:

￿Align the rack bracket with the holes on the side of the unit. See Figure 7.

￿Install flat head machine screws in two holes. Tighten securely. Repeat on the other side of the unit. For best alignment, perform the above steps while the unit and rack brackets are setting on a flat surface.

￿Insert the unit into a 19" rack enclosure and insert four #10-32 x 3/8" Phillips pan head screws (supplied) in each corner of the rack mount brackets and secure.

Coax Cable

For best results, it is recommended that cable losses be kept under 4 dB. (Every 3 dB of signal loss results in a system operating distance reduc- tion of 25%.

See the accessories section of this manual for special low loss cable assemblies.

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