Nitek VH851 Installation And Operation Manual Download Page 6

Page 4

Installation - continued

Step 4)

Remove the front panel of the VH851 or VH1651 by

pulling the knobs toward you. Inside locate the receiver unit to
match the camera you are working on. Set the DIP switches for
your camera distance as listed below, use the setting closest
to your actual cable length. If you have no video or a streak
through your video your wire pair may be reversed. When
finished replace the front panel and lock it in place by pushing
the knobs in.

The settings listed are for normal conditions. Other set-
tings are possible. 

For added sharpness adjust switches 7

and 8. For more gain adjust 5 and 6.

 Switches 1 and 2 

or 3

and 4 must be operated in pairs to 

adjust for frequency

compensation.

Step 5)

There is also an “Earth Ground” terminal on the rear of

the VH1651, this connection provides improved surge protction,
it is not required for operation. If the “Earth Ground” is not
connected the unit will be grounded through the coax shield.

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Summary of Contents for VH851

Page 1: ...5410 Newport Dr 24 Rolling Meadows IL 60008 PHONE 847 259 8900 FAX 847 259 1300 Internet www nitek net E mail INFO nitek net Installation and Operation Manual VH851 VH1651 Rev 091903 NITEK...

Page 2: ...CONTENTS Features 1 System Specifications 2 Installation 3 4 Troubleshooting 5 Limited Warranty 5 VH1651 Diagram 6 Page Reduce risk of fire or electrical shock do not expose this product to rain or m...

Page 3: ...of the VH851 and VH1651 Live video over twisted pair lines for up to 1 500 feet Easy to install with just a screwdriver High resolution color or monochrome video Virtually impervious to hum and noise...

Page 4: ...ower transformer VH1651 System includes the following 1 VH1651 Hub 1 Wall power transformer Size 1 75 H x 17 W x 6 0 D Power Requirements 24VAC 50 60Hz Class 2 550mA Input Low voltage current loop fro...

Page 5: ...smitter to the screw terminals noting the polarity of the connection If the wires are reversed the video will be unviewable on the monitor Reversing the wires will not damage the unit Step 3 The VH851...

Page 6: ...tches 7 and 8 For more gain adjust 5 and 6 Switches 1 and 2 or 3 and 4 must be operated in pairs to adjust for frequency compensation Step 5 There is also an Earth Ground terminal on the rear of the V...

Page 7: ...o line Remove tap For additional help with problems please call NITEK Tech nical Assistance at 800 528 4343 Hours are from 8am to 5pm Central Standard Time Monday through Friday We are always ready to...

Page 8: ...VH1651 Back VH1651 Top Note VH851 is identical with the exception of 8 BNC ports instead of 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 24VAC 450 mA 50 60 Hz Class 2 only 2 4 6 8 10 12 14 16 5 0 6 0 17...

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