Aiphone 83873900 0602 E Installation Manual Download Page 31

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6. TECHNICAL PRECAUTIONS

RESET switch

Do not use RESET switch except for initializing or
testing the NHX-80X.  If RESET is pressed while a call
is being placed or a Bathroom call or Cord-out trouble
call has been placed, it will suspend the call. 

*  Do not press RESET switch except when installing,
changing subs, or when system malfunctions.

Adjusting Preset Volumes

On the bottom of the NHX-50M, adjust volume controls
to desired level.

*  TRANSMIT: Adjusts the NHX-50M’s voice heard at

bedside sub.

*  RECEIVE: Adjusts the speaker volume on NHX-50M.

Adjustable 3-position control on the left panel.

•  PRE-TONE: Adjusts pre-tone to the desired level

heard at bedside sub.

•  TONE: Adjusts initial call tone level.  3-position switch

varies volume from preset level (user-adjustable).

•  DUTY STATION: Adjusts call tone level heard at Duty

Station

When System Malfunctions;

Call tone sounds on the NHX-50M without being called.
Call-in LED is lit, but no call tone.
In such occasions, check the status of system, and turn
power switch off and on again at the NHX-80X.  If the
system does not return to normal operation, turn OFF
power switch and contact your installing dealer or
Aiphone.

Call priority:
1. Cord-out trouble call
2. Bathroom call, or NHR-3TS common area

bathroom call or staff call (urgent call),

3. Routine call

In Standby mode;

Priority is put in the order of Cord-out trouble call,
Bathroom call and Routine call.
Cord-out trouble call is put in first priority, and overrides
any other calls on the system.

During communication;
The NHX-50M master station sounds an incoming call
tone while talking to another station, the same as in
standby mode.  A new call doesn’t override an existing
conversation.  Reply after concluding current call. 

Up to 5 sub call-ins can be displayed on the selector
switch bank.  All the calls placed are held in a queue,
and will resume light and tone at NHX-50M after each
previous call is concluded. 
Momentarily hang up handset, and the next call tone is
audible.  The sixth call will not illuminate on 
NHX-50M nor on Corridor lamp (Only zone light will be
lit).

The NHX-50M is capable of having as many calls held
as there are sub stations. To reply to next call, hang up
and lift handset or press TALK button to establish
channel.
•  If calls are of the same level;  in the order of time of
call,
•  If calls are of different levels;  in the order of urgency.

Operational Modes in Multi-Station Patient Room
application

When single or multiple calls have been placed from the
same patient room, corridor lamp will be activated as
follows;

Warning tone

(1) If a call has been left unanswered for 90 seconds,

the call tone volume will go up to HIGH level
regardless of the set position.

(2) If handset is left off the hook at NHX-50M for 90

seconds during communication, a warning
tone(steady) will be heard.  Replace handset, and
the tone will stop.

Line-off Trouble:

Connector unplugged status on

Bedside or Bathroom call sub stations & Duty station

When a buzzer warning tone (*) has been activated at
the NHX-50M, the wire connector is disconnected from
the back of the Sub station or Duty Station.  The warning
tone cannot be silenced by TONE-OFF button.  To mute
the slow buzzer (with a blinking call-in LED on the
corresponding Sub), either lift handset or press TALK
button.  To mute faster buzzer with no LED lit, remount
the shorting connector (**) on CN104 at the NHX-80X.
The Duty Station will no longer be acknowledged.  To
restore, call the installing dealer or Aiphone.

(*) Line-off Trouble detects disconnected status of 3, 4,

5 & 6 wires only on sub station.

(**) Shorting connector is attached to the internal wires

inside the NHX-80X.

Type of calls placed

Corridor lamp

Sub1

Sub2

Sub3

Red

White

Routine

Steady

Bathroom

Blinking

Cord-out

Blinking

Routine

Bathroom

Blinking

Steady

Routine

Cord-out

Blinking

Bathroom

Cord-out

Blinking

Blinking

Routine

Bathroom

Cord-out

Blinking

Blinking

Sub2

Bathroom

Bathroom

Bathroom

Bathroom

Summary of Contents for 83873900 0602 E

Page 1: ...HEALTH CARE COMMUNICATION SYSTEM for Nursing Homes Health Care Facilities NHX SYSTEM 83873900 0602 E 1 INSTALLATION MANUAL c...

Page 2: ...stallation Wiring 13 21 Mounting location Wiring Cable Power supply Power off system resetting Zone light installation 13 Setting Station 1 10 on Sub stations 14 Initializing NHX 80X for Sub stations...

Page 3: ...t that varies in temperature in front of air conditioner inside a refrigerated area etc Places subject to moisture or humidity extremes Places subject to environmental conditions such as oil dust chem...

Page 4: ...n may have urgent bathroom call button ea 3 wires Corridor light mounted on 1 gang box 3 wires Gang box may be used for junction of 3P Trunk cable 2 NHX 80X Central Control Unit 50 or 80 call station...

Page 5: ...4A NHR 3A 4 up to 4 Do not connect two power supplies in parallel NHX 80X CCU Zone lights NHR SP Duty station NHX 50M NHX 30G Master Add on Staff call area Common area Restrooms Bedside sub area multi...

Page 6: ...A Single call sub station NH 2SA A NH 2SA Dual call sub station Corridor lamp sub NHR 3TS Common area call station used w NHR 7A Bathroom pullcord NHR 3TS Urgent staff call sub station used w NHR 7A m...

Page 7: ...orridor lamp in common area for urgent bathroom call or in the hallway for urgent staff call Urgent call switch cannot be used alone Contact Ratings DC 24V 10mA to max 20mA min 5mA or more Hand held c...

Page 8: ...12 Speaker 13 Directory 14 Sub call in LED 15 Sub selector button 16 Power on LED 17 Mic 18 OFF button 19 TALK button 10 TONE OFF button 11 Attendance LED 12 RECEIVE VOL 13 TONE VOL See OPERATIONS se...

Page 9: ...routine call only while the bathroom and cord out trouble call can be cancelled at the site NH 2SA A 2 gang mounting 1 Speaker mic 2 CANCEL button for Routine call only 3 TALK mode LED 4 Master RING...

Page 10: ...460 18 1 8 13 3 8 3 7 8 2 NAMES FEATURES 1 24V DC output terminals 2 Terminal for grounding 3 120V AC input power cord plug of approx 6 3 1 9m long 4 Cover of Terminal section PS 24E PS 2420 Single g...

Page 11: ...cover 4 Red lamps inside 2 5 gang mounting holes 1 Master RING LED 2 Pull lock switch Tie up the pullcord supplied NHR 3A 4 NHR 8A 45 28 116 1 4 16 9 1 120 4 4 3 8 1 1 4 3 116 120 1 2 3 4 16 9 4 4 3 4...

Page 12: ...lights 8 Three types of calls with distinct tone and light signalling 1 Routine Call 2 Urgent Call from bathroom common area bath or urgent call station 3 Cord out trouble call from bedside Calls are...

Page 13: ...el or twisted pair cable 22AWG or heavier UL Listed Power supply For NHX 80X CCU use the power supply exclusively designed as listed below PS 24E or PS 2420 Rated input 120V AC 50 60Hz Rated output DC...

Page 14: ...ll in OFF position Move to upper ON position according to the Chart Example 7 1 2 4 7 Do not assign the same number for more than one sub within a trunk Otherwise system will malfunction FIG 2 BLOCK 1...

Page 15: ...on while holding down OFF button on front panel The NHX 50M enters testing mode Check the sub stations throughout system as follows From sub 1 of the first row the LED is lit and goes out if the sub i...

Page 16: ...on LED control 3 Zone light connection to sub s ZL terminal Z1 to Subs of zone 1 Z2 to Subs of zone 2 Z3 to Subs of zone 3 Z4 to Subs of zone 4 A sub cannot have more than one zone indication to Zone...

Page 17: ...ng to bathroom pullcord corridor lamp zone light Plug in the supplied connector for wiring to NHX 80X CAUTION When NHR SP Duty Station is installed remove the Shorting Connector CN104 on NHX 80X CCU P...

Page 18: ...t is necessary only when wires to NHR SP are broken g p g p To silence the tone plug in the shorting connector until NHR SP is y y y y restored to normal operation p g p g WIRING DIAGRAMS 1 NHX 80X CC...

Page 19: ...ne lights 3 4 Lamp Rated DC 24V 100mA each lamp Total 400mA per NHR 3A 4 PS24 PS24 Zone light NHR 3A 4 NHX 80X 5 2 1 2 3 4 5 2 5 5 1 1 2 2 3 3 1 3 4 1 1 2 2 3 3 1 2 3 4 2 2 3 3 4 1 1 2 2 3 3 1 2 3 4 1...

Page 20: ...3TS NH 1SA A NH 1SA NH 2SA A NH 2SA or NHR 3TS PS24 PS24 Power supply PS 24E or PS 2420 DC24V 2A G B B PS24 G A A Z4 Z2 81 82 83 84 85 86 41 42 43 44 45 46 To Subs block 8 Z3 CCU Z1 ZL 51 52 53 54 55...

Page 21: ...L RL E TC TL White Red Brown Green Yellow Blue Blue Green Yellow Blue Orange Red LED CN2 CN1 Brown Red Orange Orange LC terminal is not used not shown NHX 80X NHR 3TS NHR 7A NHR 7A NHR 7A NHR 7A CCU A...

Page 22: ...TL E ZL LC Z1 11 12 13 14 15 16 3P or 4P 3P 2 3P or 4P 3 or 4 3 3P 2 3P 2 NHR 4A NHX 80X CCU NHR 7A common bathroom NHR 4A NHR 7A Brown Orange Red Orange Brown Red Orange Yellow Green Blue Purple Bro...

Page 23: ...A NH 2SA A 1 2 3 3P 2 3P or 4P 3 or 4 3 3P 2 5 4 6 3P 2 3P 2 2 white lamps NHR 4A One red lamp NHR 4A NHX 80X CCU NHR 7A Left row Right row common bathroom Subs trunk line 1 Requried only when NHR 7A...

Page 24: ...ed to wood backboard Conduits optional NHX 50M console Door Front cover PS 24E or PS 2420 NHX 80X Chassis NHX 80X should be mounted on either 3 gang box or non combustible mounting plane wall Mounting...

Page 25: ...e socket Mount the cover at 3 points which connects NHX 50M NHX 30G units together To CN1 Socket on back of NHX 50M 10 pin plug Terminal cord 6 7 2m long approx Wire nuts NHX 80X cable As shown connec...

Page 26: ...protecting from being pulled or crushed e Corridor lamp for bedside sub Cover Screws 4 2 gang box Box must be more than 2 50mm deep 3 5 16 83 5mm NH 2SA A in this illustration SINGLE GANG BOX for corr...

Page 27: ...A A or NH 2SA A bedside sub or NHR 3TS common area call station 2 Mount NHR 7A on 1 gang box 3 For bathroom call tie up pullcord supplied NHR 3A 4 1 Put number labels 1 4 on lamp covers 2 Terminate 5...

Page 28: ...tion is finished Receiving a Bathroom Pullcord Call or call from NHR 3TS sub At NHX 50M At site When a cord is pulled at Bathroom 1 Single chime tone rings on NHX 50M every 1 8 seconds together with L...

Page 29: ...d will light on the NHX 50M until all calls are answered Other operations 1 Call in during communication will activate both call tone LED 2 While call tone is muted call ins will be annunciated by ton...

Page 30: ...TS At NHR SP Duty station When Master received Routine call Single chime every 6 sec CALL blinking every 2 sec Urgent call Single chime every 2 sec CALL double blinking every 1 8 sec Cord out trouble...

Page 31: ...and tone at NHX 50M after each previous call is concluded Momentarily hang up handset and the next call tone is audible The sixth call will not illuminate on NHX 50M nor on Corridor lamp Only zone lig...

Page 32: ...m call room or common area or NHR 3TS staff call urgent call 3 Routine call Wiring Use UL Listed twisted pair only copper conductor cable for all wiring 6 3P looped CCU to a trunk line of 10 subs 10 5...

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