4.2 Dispatching Centre Instructions

ALARM Call

  1. The process starts the moment the ALARM button is pressed on any audio unit. Upon the press, LN calls the dispatching centre (refer to Automatic Dialling for details).
  2. When the incoming call is answered by the operator, the LN voice message is played identifying the calling lift.
  3. The answered call must be manually confirmed first. This is done by button 1 on the dispatcher's phone.
  4. The call is time-limited (by the "Attention, the call is ending" message), but can be prolonged using the button 4.
  5. You are recommended to terminate the call by pressing button #.

Dispatching Centre – Lift Call

The dispatching office may call back to LN. The CU receives any incoming call automatically, identifies itself and offers a voice menu (DISA). This helps the caller to access the required audio unit. Like outgoing calls, incoming calls are time-limited and easily controlled (prolongation, end).

Incoming call voice menu

Hello! This is communicator ID number.../serial number...

Choose the lift number by pressing 1 to 8.

For connection with the cabin choose 1.

For the machine room choose 2.

For the shaft bottom choose 3.

And for the cabin roof choose 4.

Press 9 for services.

Enter the service password. Press 5 to end the call.

The above mentioned menu helps you call the selected audio unit.

Notes

  • The machine room connection, however, is possible only if the connected telephone has been picked up.
  • Number 9 is primarily used for LN configuration – refer to the Configuration section.
  • Where the LN identification code is not stored, LN announces its production/serial number.

ALARM Call - Intercom

  1. The process starts the moment the ALARM button is pressed on any audio unit (except for the pre-set machine room – dispatching centre unit). Upon the press, LN calls to the pre-set machine room – dispatching centre audio unit (refer to Automatic Dialling for details).
  2. When the incoming call is answered by the operator, the LN system voice message is played.
  3. The answered call must be manually confirmed first. This is done by button 1 on the dispatcher's phone.
  4. Then, the voice connection with the calling audio unit is activated.
  5. The call is time-limited (by the "Attention, the call is ending" message), but can be prolonged using the button 4.
  6. Press 5 or # (or hang up, but this termination takes a longer time) to terminate the call.

Caution

  • No alarm call can be made from the machine room audio unit set as the dispatching centre. The alarm call is set to the audio unit that was the last to activate the Alarm function. If no alarm was activated on any audio unit, the machine room audio unit sets up no call.
  • If a call is set for a non-existent machine room audio unit, the alarm call is not established (valid for settings #9, #0). If more numbers than one are pre-programmed, the non-existent audio unit is skipped.
  • Alarm – Intercom setup. During the Alarm – intercom setup, there is unilateral audibility between the machine room audio unit and the alarm initiating audio unit at first and, when the call is confirmed, there is bilateral audibility.
  • If you set #1 to #8 into the checking call memory (i.e. checking calls will be set up to the machine room audio unit), it will be impossible to initiate alarm from the set audio unit.
  • When the machine room audio unit - intercom is called, the voice message for the dispatching centre is played to the calling unit too.

Setting Machine Room Audio Unit Number

Enter # before the lift number to set the machine room number.
For example, 011 - #8 means that calling to lift 8 machine room audio unit is set in ALARM button memory 1.

Setting options:

  1. Service Tools – enter # and lift number into parameters 011-016.
  2. Set the lift number into the button memory (011-016) in the programming menu, select parameter 017 (refer to the table of parameters) and enter the required character (#) into the appropriate button memory. 

Caution

  • The dispatching-intercom audio unit is set as lift 8 type machine room by factory default.
  • You can set alarm-intercom for lifts 1-7 too. All you have to do is change the lift address (jumper) and set another number into the ALARM button memory.
  • The dispatching centre audio unit must be of the machine room type and set as the machine room. If it is set otherwise (as a shaft, cabin or roof), no call to the unit will be successful.

Note

  • It is possible to combine calling to the machine room (dispatching) audio unit with calling via the PSTN.
  • To set up a checking call to a machine room audio unit, you can set the number as described in the Alarm – Intercom subsection above.

Tone Dialling Control during Call – Complete List of Commands

Where automatic dialling with confirmation is used, it is possible to use tone dialling for LN control during the call according to the table below. For simplification, commands 1 to 5 are arranged in the sequence they are usually used in.

DTMF char

FUNCTION details

Only where automatic dialling repetition is enabled. The character is used to confirm a successful call to LN. LN mutes the played-back message and, optionally, sends the identification code (DTMF). The call goes on until the timeout end and any of the following commands may be used.

Voice module muting. CAUTION: Now this function is no more necessary for calling due to a software change.

Repeated voice module playback, for 1 replaying of the message.

Call prolongation: The call is prolonged as defined in parameter 912 (120 seconds by default) in case it ended earlier without this command. May be used repeatedly.

or

Call termination.

LN identification (without confirmation). This command is used by automated workplaces. The LN sends the identification code.

The car audio unit is muted for 5 seconds during Alarm call (one-way communication from operator / dispatcher to car). This feature is mainly intended when big noise is in car (e.g. children crying) and operator needs to communicate whole information to person in cabin.

to

These digits are reserved for other commands, e.g. „rescue confirmation".

This table applies to the Automatic Audible Dialling with Confirmation mode.

Warning

  • Rarely, LN may not identify the above listed commands reliably during message playing or voice communication. This is due to the essential principle of the telephone line function where DTMF signalling is mixed with the talk and thus may be hidden behind some speech tones or noise. Hence, this phenomenon is not a defect of the product.