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General Monitor Mounting and Wiring Information

Note: There are Black and Red pigtail wires coming from
terminals 'O' and 'LL' on the VH250E (or VH250P) P.C.
Board. The Black 'O' wire must jump to terminal 'O' on
the handset and the Red 'LL' wire must jump to terminal
'S' on the handset or the monitor will not activate when
the handset is signalled from the entrance station(s).

ON

Summary of Contents for VMH25WH Series

Page 1: ...t a convenient speaking and viewing locationatthebuildingentrylocation s NOTE For best picture video quality DO NOT POINT CAMERA INTO DIRECT SUNLIGHT SYSTEM TRANSFORMER s The SS146 and SS106 system transformers should be connected to accessible sources of 117 VAC preferably within 50 15 meters of the VRU system power supply unit s but no closer than 3 feet 1 meter ELECTRIC DOOR OPENER OPTIONAL The...

Page 2: ...tch handset to another location that is functioning and try again Check that entry station pushbutton is making contact by shorting out the two 2 wires on the back of the button 3 NO PICTURE AT MONITOR If screen is NOT LIGHTING UP check for approximately 16VDC at and terminals on monitor PC board VH250E or fluorescent lights light dimmers or other electrical devices Protectcablefromdamage Shielded...

Page 3: ...control potentiometer on VH250E or VH250P PC board and adjust as needed from approx 0 to 180 seconds Calibration is not exact so please check timing after re adjusting 8 MONITORS DO NOT TIME OUT AT ALL Check for shorts and or grounds on system Tempo rarily switch monitor with one from a functioning loca tion Check that entry station pushbutton is not stuck or shorted TemporarilyswitchmonitorPCboar...

Page 4: ...tail wires coming from terminals O and LL on the VH250E or VH250P P C Board The Black O wire must jump to terminal O on the handset and the Red LL wire must jump to terminal S on the handset or the monitor will not activate when the handset is signalled from the entrance station s ON ...

Page 5: ...using a PINHOLE type camera instead of the standard S T R type camera see the special camera installation and connection instructions found on page 8 and do not power as shown above 3 DO NOT CONNECT MORE THAN 10 MONITORS PER VIDEO RISER LINE 4 Observe all local and national electrical and building codes 5 All terminals connections shown may not be in the order that they appear on the equipment ...

Page 6: ...type camera see the special camera installation and connection instructions found on page 8 and do not power as shown above 3 DO NOT CONNECT MORE THAN 10 MONITORS PER VIDEO RISER LINE 4 Observe all local and national electrical and building codes 5 All terminals connections shown may not be in the order that they appear on the equipment Note For more information on the VDU 4 or when connecting mul...

Page 7: ... 10 MONITORS PER VIDEO RISER LINE 4 Observe all local and national electrical and building codes 5 All terminals connections shown may not be in the order that they appear on the equipment TYPICAL WIRING DIAGRAM FOR DUAL ENTRANCE SYSTEM WITH S T R STYLE CAMERA AND ONE 1 VIDEO RISER NO VIDEO DISTRIBUTORS AND 1 4 MONITORS Note For systems with more than two 2 entrances or other configurations please...

Page 8: ... IS SUPPLIED TO THE CAMERA USE A METER TO CHECK THE POLAR ITY OF THE NEWLY SPLICED CABLE BEFORE CONNECTING IT TO THE CAMERA THE CENTER PIN MUST BE POSITIVE USE ONLY THE SUPPLIED POWER SUPPLY POWER SUPPLY IS FOR INDOOR USE ONLY DO NOT REMOVE THE SERIAL NO STICKER AS THIS WILL VOID THE WARRANTY IF YOU ARE USING A PINHOLE STYLE CAMERA s IN PLACE OF THE STANDARD S T R STYLE CAMERA s CONNECT THE CAMERA...

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