Videotec DTRX3, Руководство по эксплуатации

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Page 15 MNVCDTRX301_0850
6.12 Adjusting the voltage of the optics controls
connect the power supply cable and power the DTRX3 unit (LD1 lit up)
insert a load between terminals FOCUS NEAR and FOCUS FAR to absorb at least 10 mA (use a resistor
from 100 to 1000 ohm).
position the tester prods on terminals FOCUS NEAR and FOCUS FAR
keep one of the two FOCUS keys on the control unit pressed down
adjust the control voltage of the optics by adjusting trimmer TR1 (default 12V
=
)
NB: don’t make unloaded voltage regulation (without inserting the load) otherwise the adjustment will be
incorrect.
6.13 Connecting the pan&tilt and optics cables
WARNING!: Before carrying out the following operations make sure that the pan&tilt control voltage and
the setting for optics type are correct .
disconnect the power supply to the unit
make the connections with the optics and pan&tilt
reconnect the power supply to the unit
For optics and pan&tilt with PRESET functions (PAN,TILT, ZOOM, FOCUS and IRIS, VCC and GND),
the maximum length of the preset cables should not exceed 5 metres, otherwise positioning on the stored
positions will be incorrect.
7 Setting the receiver for PRESET functions
The DTRX3 receiver has integrated preset functions (for pan&tilt and the optics). It is possible to store up to a
maximum of 14 positions using the standard Videotec protocol or up to a maximum of 40 positions using the
MACRO and Pelco D protocols. All positions can be recalled using the keyboard with the Scan and Patrol
functions. The receiver is able to make a test to automatically detect which preset functions are present and
configuring the device is therefore a simple operation. However, it is necessary to take certain precautions:
Before making the receiver test (to determine which preset functions are active), make sure the cables for
pan&tilt and the optics have been connected correctly
For the preset cables (PAN, TILT, ZOOM, FOCUS, IRIS, VCC and GND) use cables with a maximum length
of 5 metres