Alpha Communications NH208TVU Installation And Use Instructions Manual Download Page 8

8

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

consult the factory or your nearest

Alpha Communications® distributor.

Notes:
1. All wiring is #22AWG unless shown otherwise.
2. When 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 9, and do not power as shown above.

3. The most recent NH208TVU has two (2) 'O' and '8V' terminals. They are duplicated for ease of wiring. You

may use either or both. Both sets are internally connected together inside the NH208TVU on the p.c. board.

4. DO NOT CONNECT MORE THAN 10 MONITORS PER VIDEO RISER/LINE.
5. Observe all local and national electrical and building codes.
6. All terminals connections shown may not be in the order that they appear on the equipment.

     Notes:

All Model HT2006/5 (5-button) Master Handsets shown. You
may also use HT2006/10 (10-button) Master Handsets which
basically wire the same as the 5-button handsets, except they also
have terminals '6' thru '10' as well as '1' thru '5'.

Terminals '1' thru '5' (on the HT2006/5) and terminals '1' thru '10'
(on the HT2006/10) are the calling out terminals and terminal 'Z'
is the terminal that determines the handset number that is called.

This configuration shows a 1-button door entry station that
signals all four  (4) HT2006 handsets simultaneously. You may
use a multi-button door entry station, by connecting the selective
button wire(s) to terminal 'R' on the corresponding HT2006
handset(s) being called by that button.

Each handset that is called by a door station must have the model
R2006 Alphatone™ signaling module installed (see page 4).

The Electric Door Opener shown  in this illustration is activated
by depressing button #5 on each of the HT2006 handsets. Each
HT2006 handset comes with a separate plastic 'KEY SYMBOL'
button that may be substituted for the numbered door release button
used (if desired).

Summary of Contents for NH208TVU

Page 1: ...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 trans...

Page 2: ...for theother party to lift his her handset to reply Speak in a normal voice Conversationisfullduplextype simultaneoustalkandlisten When conversation is completed hang up both handsets on their cradles...

Page 3: ...tingavideosignalfrom the camera to the monitor Starting at camera check for video signal through coax cable and through VDU 4 video distributors if used Check for approx 12VDC power at each VDU 4 vide...

Page 4: ...refully pop out the numbered cap and pop in the Key Symbol cap to make it easier to identify the door release push button You do not need to do this to make the push button activate the electric door...

Page 5: ...ail 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 mon...

Page 6: ...Handsets shown You may also use HT2006 10 10 button Master Handsets which basically wire the same as the 5 button handsets except they also have terminals 6 thru 10 as well as 1 thru 5 Terminals 1 thr...

Page 7: ...er Handsets which basically wire the same as the 5 button handsets except they also have terminals 6 thru 10 as well as 1 thru 5 Terminals 1 thru 5 ontheHT2006 5 and terminals 1 thru 10 on the HT2006...

Page 8: ...they appear on the equipment Notes All Model HT2006 5 5 button Master Handsets shown You may also use HT2006 10 10 button Master Handsets which basically wire the same as the 5 button handsets except...

Page 9: ...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 SUPP...

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