Aiphone 83873900 0602 E installation manual Technical Precautions, Reset switch

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.

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;

*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.

Type of calls placed

Sub1	Sub2	Sub3
Routine		–
	–
–		–
	Bathroom
–		Cord-out
	–
Routine		–
	Bathroom
Routine		Cord-out
	–

–Bathroom Cord-out Routine Bathroom Cord-out

Corridor lamp

Red White

–Steady

Blinking –

–Blinking

Blinking Steady

–Blinking

Blinking Blinking

Blinking Blinking

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).

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.

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