2N LiftNet User Manual
®
User Manual
Version 1.8.3
Firmware version 1.8.3 www.2n.cz
2N
LiftNet
Lift Communicator
The 2N TELEKOMUNIKACE a.s. joint-stock company is a Czech manufacturer and supplier
of telecommunications equipment.
The product family developed by 2N TELEKOMUNIKACE a.s. includes GSM gateways,
private branch exchanges (PBX), and door and lift communicators. 2N TELEKOMUNIKACE
a.s. has been ranked among the Czech top companies for years and represented a
symbol of stability and prosperity on the telecommunications market for almost two
decades. At present, we export our products into over 120 countries worldwide and have
exclusive distributors on all continents.
2N® is a registered trademark of 2N TELEKOMUNIKACE a.s.. Any product and/or other
names mentioned herein are registered trademarks and/or trademarks or brands
protected by law.
2N TELEKOMUNIKACE administers the FAQ database to help you quickly find information
and to answer your questions about 2N products and services. On faq.2n.cz you can find
information regarding products adjustment and instructions for optimum use and
procedures „What to do if...“.
Declaration of Conformity
2N TELEKOMUNIKACE a.s. hereby declares that the 2N® LiftNet product complies with all
basic requirements and other relevant provisions of the 1999/5/EC directive. For the full
wording of the Declaration of Conformity see the CD-ROM enclosed and at www.2n.cz.
2N TELEKOMUNIKACE company is the owner of the ISO 9001:2000 certificate. All
development, production and distribution processes of the company are managed by this
standard and guarantee high quality, technical level and professional aspect of all our
products.
2N® LiftNet product is the holder of the Type certificate of the TÜV SÜD Czech company.
Table of Contents
1. PRODUCT OVERVIEW.................................................................................... 7
1.1 PRODUCT DESCRIPTION ........................................................................................................................... 8
Basic Features ............................................................................................................................................ 8
Basic Description ........................................................................................................................................ 8
System Block Diagram ............................................................................................................................... 9
1.2 2N
1.3 UPGRADE AND INNOVATIONS ................................................................................................................. 15
1.4 TERMS AND SYMBOLS USED .................................................................................................................. 16
®
LIFTNET COMPONENTS AND ASSOCIATED PRODUCTS ................................................................. 12
System Components ................................................................................................................................ 12
Associated Products ................................................................ ................................................................ . 14
Symbols in Manual ................................................................................................................................... 17
Future functions ........................................................................................................................................ 17
2. DESCRIPTION AND INSTALLATION ................................................................ 19
2.1 PSTN CENTRAL UNIT ............................................................................................................................ 20
Description ................................................................................................................................................. 20
Before You Start........................................................................................................................................ 21
CU Mounting .............................................................................................................................................. 22
CU Connection .......................................................................................................................................... 22
Interruption of Operation, Battery Maintenance ................................................................................... 26
2.2 LIFT CABIN AUDIO UNIT – UNIVERSAL ................................................................................................... 27
Description ................................................................................................................................................. 27
Before You Start........................................................................................................................................ 27
Mounting..................................................................................................................................................... 28
Electric Installation .................................................................................................................................... 30
2.3 LIFT CABIN AUDIO UNIT – COMPACT ..................................................................................................... 36
Description ................................................................................................................................................. 36
Before You Start........................................................................................................................................ 37
Mounting..................................................................................................................................................... 39
Electric Installation (Earlier HW) ............................................................................................................. 40
Electric Installation (Later HW) ............................................................................................................... 40
CANCEL Input Connection (Door Contact, Optional).......................................................................... 44
Mounting Completion ............................................................................................................................... 45
2.4 AUDIO UNIT – MACHINE ROOM .............................................................................................................. 47
Description ................................................................................................................................................. 47
Before You Start........................................................................................................................................ 48
Mounting..................................................................................................................................................... 48
Electric Installation .................................................................................................................................... 49
2.5 AUDIO UNIT – LIFT SHAFT / CABIN ROOF .............................................................................................. 51
Description ................................................................................................................................................. 51
Before You Start........................................................................................................................................ 52
Mounting..................................................................................................................................................... 52
Electric Installation .................................................................................................................................... 52
3. CONFIGURATION........................................................................................ 55
3.1 LN PROGRAMMING ................................ ................................ ................................................................ . 56
PSTN Programming ................................................................................................................................. 56
3.2 PARAMETER CHART (FW V. 1.8.0) ........................................................................................................ 59
PC Configuration ....................................................................................................................................... 64
How to Record User Messages and Numbers ..................................................................................... 65
4. FUNCTION AND USE ................................................................................... 67
4.1 USER INSTRUCTIONS .............................................................................................................................. 68
Audio Unit - Lift Cabin .............................................................................................................................. 68
Audio Unit - Lift Shaft / Cabin Roof ........................................................................................................ 68
Audio Unit - Machine Room .................................................................................................................... 69
4.2 DISPATCHING CENTRE INSTRUCTIONS .................................................................................................. 70
ALARM Call ............................................................................................................................................... 70
Dispatching Centre – Lift Call ................................................................................................................. 70
ALARM Call - Intercom ............................................................................................................................ 71
Setting Machine Room Audio Unit Number .......................................................................................... 72
Tone Dialling Control during Call – Complete List of Commands ..................................................... 73
4.3 FIREMAN FUNCTION ................................................................................................................................ 74
Description ................................................................................................................................................. 74
Use .............................................................................................................................................................. 74
Setting......................................................................................................................................................... 74
4.4 FUNCTION DESCRIPTION (FOR ADVANCED USERS) .............................................................................. 75
Purpose of Section ................................................................................................................................... 75
Outgoing Call ............................................................................................................................................. 75
Machine Room Call .................................................................................................................................. 75
Triphony ..................................................................................................................................................... 76
Checking Call ............................................................................................................................................ 76
Incoming Call ............................................................................................................................................. 76
Call Sequencing ........................................................................................................................................ 77
Automatic Dialling of Multiple Numbers with Confirmation ................................................................. 78
Automatic Redialling of Multiple Numbers without Confirmation ....................................................... 79
Automatic Call Receiving ......................................................................................................................... 79
Survey of Messages ................................................................................................................................. 80
Call End (Outgoing / Incoming Calls) ..................................................................................................... 80
Use of Switches ........................................................................................................................................ 80
5. MAINTENANCE .......................................................................................... 83
5.1 BATTERY MAINTENANCE ................................................................ ........................................................ 84
Interruption of Operation .......................................................................................................................... 84
List of Battery Endangering Situations .................................................................................................. 84
Battery Pack Replacement ...................................................................................................................... 85
5.2 FIRMWARE UPGRADE ............................................................................................................................. 86
Procedure................................................................................................................................................... 86
6. TECHNICAL PARAMETERS ........................................................................... 87
6.1 TECHNICAL PARAMETERS ...................................................................................................................... 88
Telephone Parameters ............................................................................................................................ 88
Other Parameters ..................................................................................................................................... 89
7. SUPPLEMENTARY INFORMATION .................................................................. 91
7.1 REGULATIONS ......................................................................................................................................... 92
7.2 TROUBLESHOOTING ................................................................................................................................ 93
FAQ ............................................................................................................................................................. 93
7.3 LIST OF FIGURES .................................................................................................................................... 94
7.4 GENERAL INSTRUCTIONS AND CAUTIONS .............................................................................................. 95
Electric Waste and Used Battery Pack Handling ................................................................ ................. 96
1
In this section, we introduce the 2N® LiftNet product, outline its application options
and highlight the advantages following from its use.
Here is what you can find in this section:
Product Description
2N
Changes
Terms and Symbols Used
®
LiftNet Components and Associated Products
7
Product Description
1.1
1.1 Product Description
Basic Features
Up to 8-lift connectivity
Lift cabin, shaft and machine room audio units
Minimisation of interconnecting wiring
Excellent acoustic features
In-built back-up battery pack
Easy control and programming – voice menu
Checking call function
Lift blocking option during connection failure
Internal communication – triphony
Telephone/PC-based programming
USB port
User message recording option
Local dispatching option (Intercom)
Fireman function
Basic Description
2N® LiftNet (LN) is a communication system similar to the intercom. The audio units
are connected (through a pair of conductors) to a common bus, to which one central
unit (CU) is connected. The CU controls the system operation and provides connection
to the dispatching office. Up to 32 audio units can be connected to the bus.
Each audio unit is uniquely identified: by lift number 1 to 8 and position: shaft bottom,
cabin interior, cabin roof and machine room. The machine room audio unit can be
shared by multiple lifts.
The CU is supplied with 12V DC. It contains an easily replaceable back-up accumulator
battery pack (4 AA Ni-MH cells in a holder). The CU is responsible for battery charging
and status monitoring. It indicates the charging status, telephone line status and
current communication by means of three colour LEDs. It is also equipped with a USB
port to provide comfortable parameter setting, voice message recording and software
upgrade.
8
Product Description
1.1
System Block Diagram
Figure 1.1 Example of Connection of PSTN CU and 3 2N® LiftNet Audio Units
9
Product Description
1.1
Figure 1.2 Example of CU and 2N® LiftNet Local Dispatching Audio Unit Connection
10
Product Description
1.1
Figure 1.3 Example of Fireman Connection in 2N® LiftNet
11
2N® LiftNet Components and Associated Products
1.2
913600E
2N® LiftNet PSTN Central Unit
Enables to connect up to 8 lifts to an analogue PSTN or PBX line. Including a power
supply adapter and accumulator battery pack. A USB port for programming
configuration.
913610E
2N® LiftNet
Lift Cabin Audio
Unit – Universal
913613E
2N® LiftNet
Lift Cabin Audio
Unit – Compact
Audio unit electronics for lift cabins.
Including loudspeaker and microphone
(HandsFree). Necessary terminals and
door opening signal input (not optional).
A robust, metal-encased audio unit,
provided with an ALARM button of the
prescribed size, including indicators for
blind people and backlit pictograms
(hardened glass).
Easy wall surface mounting, 16-mm
thickness only. Easy installation (paired
wire connection).
1.2 2N® LiftNet Components and Associated
Products
System Components
Caution
The 2N
only.
The audio units cannot be connected to a telephone line without the CU!
®
LiftNet system components can be used within the LN system
12
2N® LiftNet Components and Associated Products
1.2
913611ESET
2N® LiftNet
Audio unit –
machine
room/dispatching
913612E
2N® LiftNet
Audio unit –
lift shaft
Audio unit for machine
rooms/dispatching, including siren and
standard telephone set. Helps
communicate with any audio unit in the
system and program the CU without a
PC. Equipped with a lift blocking contact
in case LN fails to call for help. Can be
programmed as a multiple-lift
communicator. A robust yellow cover.
Audio unit to be installed in the lift shaft
or upon the lift cabin roof. A robust
yellow cover. HandsFree mode, ALARM
and TRIPHONY buttons, indication
elements. Not intended for cabin use.
13
2N® LiftNet Components and Associated Products
1.2
913630E
2N® LiftManager
The 2N® LiftManager system is intended for remote monitoring, control and
communication with 2N® LiftNet, 2N® EasyTalk and 2N® SingleTalk units. Part of the
2N® LiftManager installation is Service Tool application which is aimed to manage
configurations of available devices (2N® LiftNet units). 2N® LiftManager is intended
for use by companies (or individuals) who install or maintain lifts.
501300E
2N® EasyGate
GSM Solution for
2N® LiftNet and
2N® SingleTalk
501399E
2N® EnergyBank
Backup power
supply for GSM
gateway
PSTN line replacement.
Simple installation without programming.
Back-up power source in case of power
supply failure.
Simple installation.
Associated Products
14
Upgrade and Innovations
1.3
Manual
version
Upgrade an innovations
1.8.0
In firmware 1.8.0
New Fireman function (fire call setup from the Fire Station to the
cabin in the shaft with the lowest address)
1.7.0
In firmware 1.7.0
New Alarm – intercom function (alarm call setup to the machine
room audio unit)
This new function can also be used for setup of a checking call to
the machine room audio unit
1.6.0
In firmware 1.6.0
Added parameter 932 (cabin audio unit loudspeaker volume
control for alarm and incoming calls)
1.5.8
In firmware 1.5.8
Added Italian voice menu
Support of new audio units - 913613E and 913613WBE
1.5.5
In firmware 1.5.5
Added parameter 990 (System settings)
Automatic restart of audio units for CU – audio unit communication
monitoring (WatchDog)
1.5.2
In the manual
Modified description in Subs. 2.5 Audio Unit - Machine Room
In firmware 1.5.2
New voice menu
Added system messages (page 59)
Shorter timeout for the first “Wait please” message after
emergency call activation
Added parameters 978, 979
New default value for parameter 914 (delayed call set to 0
seconds, CANCEL still active)
1.3 Upgrade and Innovations
15
Terms and Symbols Used
1.4
LN
2N® LiftNet
CU
Central unit of the system, typically shared by multiple lifts in a
building
Audio unit
Voice communication unit for lift communication with the
dispatching office or another system unit
System
Central unit interconnected with a group of audio units by a bus
Bus
A pair of conductors interconnecting the CU and all system audio
units
Incoming call
dispatching office-to-CU call
Outgoing call
CU-to-dispatching office call
Checking call
Automatically activated CU-to-dispatching office call
Triphony
Internal communication between audio units, typically all audio units
of one and the same lift, during repairs or rescue work
Dispatching
office
Receives emergency calls, checking calls and, if necessary, lift
failure reports. Separate dispatching offices can be responsible for
different types of calls and mobile telephones can be used too.
LM,
LiftManager
Supervisory software designed for small and medium-size lift
supervising companies. Automatic receiving of checking calls.
Comfortable programming of CU parameters.
DISA
Automatic voice menu, which helps route incoming calls to the
required audio unit or activate additional functions, e.g. remote
programming
ESS
Electronic Security System
PBX
Private branch exchange (equipped with PSTN interface and local
analogue lines)
PSTN
Public switched telephone network. For simplification, it is assumed
that the CU is connected to the PSTN although it works on the PBX
line too in the same way.
1.4 Terms and Symbols Used
16
Terms and Symbols Used
1.4
Symbols in Manual
Safety
Always abide by this information to prevent persons from injury.
Warning
Always abide by this information to prevent damage to the device.
Caution
Important information for system functionality.
Tip
Useful information for quick and efficient functionality.
Note
Routines or advice for efficient use of the device.
Future functions
The grey-marked text in this document designates the functions and features that are
under preparation or development at present.
17
2
Installation
The section is divided according to system components into the following subsections:
PSTN Central Unit
Lift Cabin Audio Unit – Universal
Lift Cabin Audio Unit – Compact
Audio Unit – Machine Room
Audio Unit – Lift Shaft / Cabin Roof
LN Programming
Each subsection includes:
Component Description
Before You Start
Mounting
Electric Installation
19
PSTN Central Unit
2.1
Green
OK (battery full)
Green flashing
Battery charging
Red
Battery failure
Off
Power failure, more than 1 hour of
operating time remains
Red flashing
Power failure, less than 1 hour of
operating time remains
Red flashing after
power up
Audio unit FW upgrade proceeding
Green
Line OK, ready (on-hook)
Green flashing
Line picked up (off=hook, call)
Red
Line failure (no dialtone)
No light
Relax (ALARM reset)
Yellow
ALARM activated (calling)
Green
Call confirmed (ALARM
announced) / Fireman activated
Green flashing
Incoming call
Yellow flashing
Triphony
Fast green flashing
Programming from dispatching office
Fast yellow flashing
Alternate
yellow/green
flashing
Programming from machine room
Bus busy
Bus connector
(to audio units)
Telephone line
connector
Supply
connector
USB connector
(for programming, upgrading etc.)
Figure 2.2
Central Unit
Connectors
Figure 2.1
Central Unit
LED Indicators
2.1 PSTN Central Unit
Description
Power supply
Telephone line
Communication
Warning
Do not open the CU during the warranty period.
Later, open for battery replacement only.
20
PSTN Central Unit
2.1
Before You Start
CU installation conditions
The CU is not designed for outdoor applications.
Do not mount the CU onto vibration-producing machines.
Install the CU vertically to allow air flow for cooling purposes (never cover the
CU with any cloth or install it in another closed box).
You may install the CU into the lift switching board unless the temperature
exceeds the acceptable limit.
The CU may be operated in the lying position on a desk at the room
temperature of up to 25 °C.
Product Completeness Check
Check the product for completeness before installation please:
1 central unit
1 terminal – inserted on the bus connector
1 accumulator battery isolation tape is present (sticking out of the cover)
1 power supply adapter conforming 12V DC to the local power network
requirements
1 telephone cable with RJ terminals
2 wall dowels
2 dowel screws
1 manual, either in the printed or CD format
warranty certificate
Checking of Accumulators
Instructions
1. Completely pull out the tape that sticks out of one opening on the back side of
the CU. This tape protects the inserted accumulators against discharging
during storage. With this tape it is possible to store the product (if supplied
including batteries) ½ year since the shipping date, which is indicated on the
packaging. After this period the claims, if any, regarding the battery warranty
cannot be accepted.
2. Do not connect anything to the CU and if any control lamps light up after the
tape has been removed wait a few seconds until they turn off.
3. Now watch the “power” control lamp on the CU carefully for a few seconds (not
in direct sunlight because the flashing is not strong):
21
PSTN Central Unit
2.1
a. Weak and short green flashing
The battery is OK and fully charged, you may continue with the
installation. If the product was stored for longer period than ½ year, or
under temperature exceeding 25 °C proceed according to paragraph b.
Caution
The product needs to be put in operation after the tape
has been removed.
It can be stored no longer than one week without charging; after having
been fully charged no more than 1 month.
b. Weak and short red flashing
Some battery cells are discharged. In such case connect the 12V DC
power adapter (do not connect any audio units!) and let the CU charge
for at least 24 hours, even after the indicator has starting showing that
the battery is charged. This is a so-called compensatory cycle, which
balances out the condition of the individual cells after a long period of
storage.
c. No flashing
The battery is fully depleted and may be damaged. Replace the battery
with a new recommended type (SANYO Eneloop 2000).
4. You may now install the CU.
CU Mounting
It is recommended to install the CU in a room that is secured against unauthorised
persons, such as the lift machine room, switching station etc. On an easily accessible
place there is a risk of telephone line misuse or SIM card misappropriation (in the GSM
version).
Mount the CU onto a wall using the attached dowels and screws.
CU Connection
Supply
Use the included adapter or a 12V DC power supply with appropriate parameters
(stabilised).
Warning
Never use an AC or non-stabilised DC power supply to avoid CU
damage.
22
PSTN Central Unit
2.1
Bus Connection
Requirements
With multi-wire cables, always use a symmetrical twisted pair of conductors
(i.e. those that match each other). Standard UTP cables contain twisted pairs.
With special cabling (in the cabin), use the adjoining cables and make sure
that the nearest neighbouring conductors do not radiate interference (power
cables, video signals, etc.).
Recommendations
Do not lead the bus close to power cables, especially in long-distance
sections.
Branch the bus to shorten the total length of sections.
Safety
The bus is electrically isolated from the telephone line circuits according to
the EN60950 standard requirements and its low voltage cannot cause any
electrical accident.
CU Connection to Telephone Line
LN works in a wide range regardless of polarity and line parameters (refer to Technical
parameters). Connect it using the attached cable with an RJ-12 terminal.
Caution
One CU may be connected to one telephone line only and no other
telephone terminal equipment may be connected to this line.
2N
No double or group serial lines may be used.
No telephone “multiplugs”, even the “intelligent” ones, may be used.
Never connect LN to an ISDN line.
CU telephone network connection options
There are four connection options:
PSTN line
PBX line
®
LiftNet requires the telephone line exclusively for itself. This means
that NOT even a system through which the telephone line goes (priority
connection, ESS, e.g.) may be connected to this telephone line.
GSM gateway
VoIP adapter
23
PSTN Central Unit
2.1
Direct PSTN Connection
This is the simplest and most reliable type of connection. High operational costs (flat
rate costs) are a drawback of this solution.
Telephone line requirements
No double or group serial line.
The telephone socket including cabling is a property of the telecom company
and may not be tampered with.
Other recommendations
Notify the telephone network provider of your LN installation and submit
certification upon request.
Your follow-up cabling has to meet all applicable safety regulations.
You are recommended to secure your cabling physically against piracy (with a
telephone lock, e.g.).
PBX Connection
This is the least-cost solution where a PBX and an unused PBX line are available.
PBX line requirements
The PBX to be used must work reliably even in the case of power outage.
Large PBXs are mostly equipped with a back-up power supply, smaller PBXs
usually use PSTN line redirection in the event of power failure. Consult the
problem with the technician responsible for your PBX. An error during power
outage may result in LN calling an undesired station.
Relevant call access rights have to be assigned to the PBX line to be used (use
a standard telephone set to check whether the line can make calls to all
required „external”/CO line numbers).
While programming, enter all necessary PSTN prefixes (typically a zero), or
(which is a better solution) make the PBX not require a prefix (so-called
automatic CO line seizure).
To make dispatching office–lift calls, you have to know the extension number
and how to get through to it (dial-in, DISA, operator).
The dispatching office–lift connection may not depend on the operator’s
presence, no call redirection to a fax machine in the night mode is allowed,
etc.
Other recommendations
Make an agreement with the PBX owner regarding operating costs (LN outgoing calls
are billed at the owner‘s expense with the exception of free calls on “green lines”).
Tip
Where a non-stop security or porter’s service is available, the personnel
can be trained in rescue operations and LN can be programmed to call this
service.
24
PSTN Central Unit
2.1
GSM Gateway Connection (Temporary – Substitutes the GSM CU
Version, Part No. 501303E)
Used wherever no fixed telephone line is available.
Requirements
The GSM gateway has to be functional even in the case of power outage.
The GSM gateway has to recover its function without requiring the PIN.
Other requirements
Find a suitable place or use a special (directional) antenna where the GSM
signal quality is poor.
Secure the GSM gateway SIM card against misappropriation.
With a pre-paid SIM card, monitor the credit use and on-time replenishing.
VoIP Adapter Connection
This is the cheapest solution where a reliable Internet connection is available.
Requirements
The entire system has to be functional even in the case of power outage.
Other recommendations
As the VoIP technology is rather complicated, make sure that the dispatching
office personnel monitor connectivity reliably (evaluate the checking calls).
Tip
Some VoIP adapters have two independent telephone lines. A majority of
subscribers use just one line and the other line is thus available “free of
charge”.
Operation without Telephone Line
LN can be used as an intercom during lift assembly work even without a telephone
line. In that case, make sure that the lift blocking function is not activated until the
telephone line has been connected.
USB Port Connection
Recommendations
Do not leave a PC connected for a long time unless necessary in order to minimise risk
of PC damage due to HV shock from the telephone line during storms, e.g.
25
PSTN Central Unit
2.1
Interruption of Operation, Battery Maintenance
Caution
Never leave the batteries discharged for unnecessarily long periods.
If the battery is fully discharged please recharge it as soon as possible.
For a detailed description of situations that require your attention due to the state of
accumulators during interruption refer to the Maintenance section. Remember that
the state of accumulators is essential for system operation in any case. The
Maintenance section also contains instructions for accumulator maintenance, including
replacement.
26
Lift Cabin Audio Unit – Universal
2.2
Figure 2.3 Lift Cabin
Audio Unit – Universal
2.2 Lift Cabin Audio Unit –
Universal
Description
The user is not in a direct contact with this
product.
The controls and indicators depend on the
lift cabin control panel type. The indicators
(e.g. bulbs or LEDs) are working in
accordance with the applicable standards.
Address Setting – see the Installation
section for details.
Before You Start
Requirements
The panel has to be installation-ready, including loudspeaker perforation.
The panel has to be equipped with the following obligatory elements:
o ALARM button;
o Backlit symbol “Request accepted”;
o Backlit symbol “Connection established”.
The above mentioned elements have been located as required by applicable
regulations.
There must be free space of at least 65×130×20 mm behind the panel.
Product Completeness Check
Check the product for completeness before installation please:
1 board with electronics
4 terminals slid on the board pins, see the photo
4 jumpers slid on the board pins, see the cover print
1 mounting panel
1 directly/cable-connected loudspeaker
1 directly/cable-connected microphone
1 printed cover
5 tightening strips
27
Lift Cabin Audio Unit – Universal
2.2
4 spot-welded M4 screws
Perforated loudspeaker area
LED holes (optional)
Microphone hole or perforation
Figure 2.4 Top View of
Mounting Hole Dimensions for
Lift Cabin Audio Unit - Universa
Mounting
Main Board Mounting
This audio unit is mounted behind the lift control panel. Typically, the panel is ready
for installation as shown in the drawing below:
To mount the audio unit, you need 4 electrically spot welded M3 or M4 screws, a
sufficiently large loudspeaker perforation area and a microphone hole on the inner
(back) side of the panel. If needed, you can fix the audio unit on a perfectly degreased
surface with a good-quality two-sided foam self-adhesive tape.
Warning
Leave no gap between the lift control panel and the audio unit surface to
avoid acoustic loudspeaker fault and acoustic loudspeaker-microphone
feedback.
28
Lift Cabin Audio Unit – Universal
2.2
Do not use this type of audio unit in a position other than mounted on a
sufficiently large board. The acoustic properties of an uninstalled audio
unit cannot be guaranteed.
Separate Microphone Mounting
If the microphone is separated (connected by cable) it has a 25×25 mm large board
with self-adhesive foil. This helps you mount it easily behind any hole in the panel (the
minimum hole diameter is 5 mm, or a group of smaller holes of the same total area).
Just glue the microphone directly onto the required place from behind (be sure to
degrease and clean the surface carefully before!).
Requirements
The minimum distance between the loudspeaker and microphone
centres is 90 mm. A lower distance may lead to acoustic feedback. A greater
distance (within the available 1m cable) does not matter.
Make sure that the glued-on microphone does not pick up (even
partially!) the acoustic pressure from the space behind the panel.
Such sensing might result in acoustic feedback since the loudspeaker strongly
radiates sound into the cavity.
Separate Loudspeaker Mounting
The loudspeaker is equipped with a cable and can be separated from the electronics
by simply sliding it out within the reach of the cables delivered (1m). This option is
useful where there is not enough space for the whole electronic equipment. Fit the
loudspeaker according to the instructions below:
While gluing choose such procedures or adhesives that prevent membrane
damage by adhesives and volatile substances, or heat.
We recommend you to keep the loudspeaker sealed to eliminate vibrations.
Frequently Asked Questions Concerning Loudspeaker
Is it possible to use a common loudspeaker for the communicator and floor
announcing machine?
No, it is not.
May I use a loudspeaker of my own?
Yes, but make sure that the impedance is 64 Ω. By doing this you assume
responsibility for sufficient volume and frequency range.
May I place the loudspeaker on the cabin ceiling?
This placement is not recommended.
May I use a longer cable with the loudspeaker?
Yes, but not with the microphone.
29
Lift Cabin Audio Unit – Universal
2.2
Terminals
Connectors
1
Bus 7 “Request accepted” LED
2
ALARM, voltage activation
8
“Connection established” LED
3
ALARM, contact activation
9
Microphone connector
4
CANCEL, voltage activation
10
Loudspeaker connector
5
CANCEL, contact activation
11
Induction loop connector
6
indicator switches
14
Service connector
Configuration jumpers
LED indicators (rear side):
12
ALARM / CANCEL inversion
1. (yellow)
Request accepted
13
Lift number
2. (green)
Connection confirmed
15
Audio unit position
3. (yellow)
Triphony
4. (red)
Upgrade or error
Figure 2.5 Description of
Terminals, Connectors
and Jumpers for
Lift Cabin Audio Unit –
Universal
Electric Installation
Description of Terminals, Connectors and Jumpers
30
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