Olson Technology S450P Series - Manual (Page 7)

025-000485 REV x1 Page 7
2.3 Input Connections
Using a 75-Ohm cable, connect the input to the RF input F-connector.
An input signal level of +10 dBmV will provide optimum picture quality. A level below -20 dBmV will cause
activation of the standby carrier. The threshold level for this is set by R32 (refer to Section 3.2)
2.4 Output Connections
Using a 75-Ohm cable, connect the RF OUT F-connector to the TV distribution system.
3.1 Adjustments and Operation
If adjustment of the standby carrier threshold level is to be made, proceed as in Section 3.2 before installing
the S450P in its rack or cabinet, otherwise install the unit and go to Section 3.3.
3.2 Standby Carrier Threshold Adjustment
The standby carrier threshold is factory-set for -20dBmV. If you wish to set the threshold to some other
level proceed as follows before installing the S450P in its rack or cabinet.
1: Remove the top cover from the unit.
2: Referring to Section 3.4 and 3.5, tune the S450P to the desired input and output channels.
3: Connect a television receiver (tuned to the output channel) to the rear panel RF OUT
F-connector; use the RF OUT control and attenuators as required to avoid overloading the
receiver.
4: Using a variable attenuator and a signal level meter, adjust the input signal to the desired threshold
level. Connect the RF input signal to the appropriate RF F-connector.
5: Plug the processor power cord into a 100-240 VAC, 50/60Hz outlet. The green power LED on
the front panel will light. Allow a warm-up period of about 30 minutes to stabilize the equipment.
6: Referring to Figure 3-1, locate the threshold control (R32).
7: Using the television receiver as an indicator, adjust R32 so that the picture just switches between
the input signal and the standby carrier.
8: After making the adjustment, disconnect the power cord, input, and output cabling. Replace the
top cover and install the unit in its mounting location.
3.3 Powering
After installing the S450P in its cabinet or rack, plug the processor power cord into a 100-240 VAC, 50/
60Hz outlet. The green power LED on the front panel will light. Allow a warm up period of about 30
minutes to stabilize the equipment.
3.4 Input Channel Tuning
Input channel tuning is done with the Input Channel switches; two 8-position DIP switches located at the left
side of the front panel (Figure 2-1). Access the switch by removing the switch cover.