Specifications

Section 2 INSTALLATION
2-1. INTRODUCTION. - This section contains instructions for installing and interfacing the
Model 450 Dual FM Subcarrier. Included are initial inspection procedures, power and grounding
requirements, line voltage selection, interface connections and instructions for repackaging the
equipment.
2-2. INITIAL INSPECTION.
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_ WARNING _
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In the event that any portion of the outer enclosure of the unit has been damaged, a
hazardous electrical shock condition may exist. In this case, do not apply power to
the unit, or attempt to perform electrical tests.
Inspect the shipping container for damage. The shipping container and cushioning material should
be kept until the contents of the shipment have been checked for completeness and the equipment
has been checked mechanically and electrically. This equipment was carefully inspected both
mechanically and electrically before shipment. It should be free of mars and scratches and in
perfect electrical order upon receipt. If there is mechanical damage or defect due to shipment,
notify the carrier immediately. Keep the shipping material for the carrier's inspection. In the
event of mechanical damage, or if the equipment does not pass electrical performance tests, notify
the Cross Technologies, Inc. office immediately. The warranty statement is located in the front of
this manual.
2-3. PREPARATION FOR USE. - Each unit is shipped from the factory with the following
strapping options:
Factory Setting Optional Setting
Audio level (PPL) ...................... +18 dBm .............. +9 dBm
Audio impedance (Transmit) ............. 600 Ω ................ low Z
Audio impedance (Receive) .............. 600 Ω ............... high Z
Emphasis (with Compandor OFF) ....... 75 µs .............. CCITT J.17
Highpass filter (Receive) ............. IN (Video present) ... OUT (no Video)
Power ................................... 105-130 Vac .......... 210-250 Vac
To change the line voltage setting of your unit, please refer to Paragraph 2-5. To change the other
settings, please refer to Section 5.
450 Operation Manual Rev A Page 11 8/26/99