Swyx SwyxDECT 700 Technical manual

SwyxDECT 700
Site Planning and Measurement Guide
As of: January 2017

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1
Safety precautions....................................................................................................... 3
Introduction................................................................................................................. 4
2.1 The SwyxDECT 700 .................................................................................. 4
2.2 Criteria for an optimum DECT wireless network............................... 5
2.2.1 Wireless coverage ............................................................................ 6
2.2.2 Capacity............................................................................................ 6
2.2.3 Overlapping and synchronising ...................................................... 7
2.3 How to proceed....................................................................................... 7
Projecting the DECT network.................................................................................... 8
3.1 Determining the requirements for the telephone network............ 8
3.1.1 Subscribers and subscriber behaviour............................................ 8
3.1.2 Environmental conditions................................................................8
3.2 Conditions for the positioning of the base stations ......................... 9
3.2.1 Features of the SwyxDECT 700......................................................... 9
3.2.2 Technical conditions........................................................................ 9
3.2.3 Installation guidelines...................................................................... 9
3.2.4 Synchronisation planning.............................................................. 10
3.2.5 Capacity measurement .................................................................. 11
3.2.6 Material characteristics and interference factors ......................... 13
3.3 Preliminary identification of the positions of the base stations ... 14
3.3.1 Creating a planning drawing ......................................................... 14
3.3.2 Positioning the base stations in the plan ...................................... 14
Taking measurements............................................................................................... 16
4.1 Defining limit values ............................................................................. 17
4.2 Measuring the wireless range of the planned base stations ......... 18
4.2.1 Measurement sequence ................................................................18
4.3 Measuring the cell of a base station................................................... 18
4.4 Measuring the synchronisation overlap of neighbouring 
base stations ........................................................................................... 19
4.5 Evaluating measurements .................................................................... 21
Working with the SwyxDECT 700 SPK PRO.......................................................... 22
5.1 Checking the package contents.......................................................... 22
5.2 Further recommended accessories.................................................... 23
5.3 Setting up the measuring base station .............................................. 23
5.3.1 Preparing the base carrier.............................................................. 23
5.3.2 Charging the batteries ................................................................... 24
5.3.3 Alternative power supply............................................................... 24
5.3.4 Mounting the measuring base station on the stand ..................... 25
5.4 Starting up the measuring handset .................................................... 25
5.4.1 Connecting the charging cradle .................................................... 26
5.4.2 Inserting the batteries and closing the battery cover ................... 26
5.4.3 Initial charging and discharging of the batteries .......................... 26
5.4.4 Connecting a headset to the handset............................................ 27
5.5 Operating the measuring handset ..................................................... 27
5.5.1 Display in metering mode.............................................................. 27
5.5.2 Checking the quality of the connection to the measuring 
base station..................................................................................... 28
5.5.3 Activating/deactivating the measuring handset ............................ 28
5.5.4 Activating/deactivating speaker mode .......................................... 28
5.5.5 Activating/deactivating metering mode ........................................ 29
5.5.6 Changing the settings for metering mode .................................... 29
DECT installations in special environments........................................................... 31
6.1 DECT networks over several floors .................................................... 31
6.2 Stairwells and lifts.................................................................................. 31
6.3 Several buildings.................................................................................... 31
6.4 Outside area ........................................................................................... 31
6.5 Handover over the whole site............................................................. 32
Help, Enviroment, Care, Accessories...................................................................... 33
7.1 Customer care and help....................................................................... 33
7.2 Environment ........................................................................................... 33
7.2.1 Environmental management system ............................................. 33

2
7.2.2 Disposal.......................................................................................... 33
7.3 Care.......................................................................................................... 33
7.3.1 Contact with liquid ........................................................................ 33
7.4 Authorisation.......................................................................................... 33
7.5 Specifications ......................................................................................... 34
7.5.1 Handset batteries........................................................................... 34
7.5.2 Operating times/charging times for batteries............................... 34
7.6 Accessories ............................................................................................. 34
Glossary ..................................................................................................................... 35
8.1 Bandwidth............................................................................................... 35
8.2 Broadband mode................................................................................... 35
8.3 Cell ........................................................................................................... 35
8.4 Cluster ..................................................................................................... 35
8.5 Codec....................................................................................................... 35
8.6 dBm .......................................................................................................... 36
8.7 DCS .......................................................................................................... 36
8.8 DECT ........................................................................................................ 36
8.9 DECT Manager ....................................................................................... 36
8.10 Erlang ....................................................................................................... 36
8.11 Frame ....................................................................................................... 36
8.12 Frame quality.......................................................................................... 36
8.13 Frequency ............................................................................................... 36
8.14 Handover ................................................................................................ 36
8.15 HD-voice ................................................................................................. 36
8.16 Multi-cell system.................................................................................... 36
8.17 Narrowband mode ................................................................................ 37
8.18 RFP............................................................................................................ 37
8.19 RFPI........................................................................................................... 37
8.20 Roaming .................................................................................................. 37
8.21 RPN........................................................................................................... 37
8.22 RPP............................................................................................................ 37
8.23 RSSI .......................................................................................................... 37
8.24 Slot pair.................................................................................................... 37

Safety precautions 3
1 Safety precautions
Read the safety precautions and the user guide before use.
The device cannot be used in the event of a power failure. In case of a
power failure it is also not possible to make emergency calls.
Do not use the devices in environments with a potential explosion haz-
ard (e.g. paint shops).
The devices are not splashproof. For this reason do not install them in a
damp environment such as bathrooms or shower rooms.
Use only the power adapter indicated on the device.
Use only the cable supplied for LAN connection and connect it to the
intended ports only.
Use only rechargeable batteries that correspond to the specification
(see "Specifications"). Never use a conventional (non-rechargeable)
battery or other battery types as this could result in significant health
risks and personal injury. Rechargeable batteries, which are noticeably
damaged, must be replaced.
If you give your device to a third party, make sure you also give them the
user guide.
Remove faulty devices from use or have them repaired by our Service
team, as these could interfere with other wireless services.
Do not use the device if the display is cracked or broken. Broken glass
or plastic can cause injury to hands and face. Send the device to our
Service department to be repaired.
Using your telephone may affect nearby medical equipment. Be aware
of the technical conditions in your particular environment, e.g. doctor's
surgery. If you use a medical device (e.g. a pacemaker), please contact
the device manufacturer. They will be able to advise you regarding the
susceptibility of the device to external sources of high frequency
energy (for the specifications of the product see Specifications, page 34)

Introduction The SwyxDECT 700 4
2 Introduction
This document explains the preparations necessary to install a multi-cell
DECT network and take measurements for the optimum positioning of
the base stations. It also provides technical and practical background
information.
2.1 The SwyxDECT 700
The SwyxDECT 700 is a DECT multi-cell system for connecting DECT base
stations to a VoIP PABX. It combines the options of IP telephony with the
use of DECT telephones.
The following illustration shows the components of the SwyxDECT 700
and how they are embedded in the IP telephone environment:
SwyxServer DECT
base stations
SwyxDECT
700 Base
DECT Manager
SwyxDECT 700
Manager
LAN
Configuration via
Web interface
Handover & roaming
handsets
SwyxDECT 700 Manager
Central management station for managing the DECT network. One DECT
Manager must be used for each installation.
Manages up to 30 DECT base stations
Manages up to 100 handsets on multi-cell systems
Enables division into subnets (see Cluster, page 35)
Forms the interface to an IP PABX
A Web user interface is available for configuring and administering the
DECT network.
SwyxDECT 700 Base stations
These are the cells of the DECT telephone network.
Each base station can manage up to eight calls simultaneously (see
the see Capacity, page 6)
Handsets
Up to 100 handsets can be connected and up to 30 calls conducted
simultaneously.
Subscribers can accept or initiate calls in all DECT cells with their
handset (see Roaming, page 37), and can also switch between the
DECT cells during a call (see Handover, page 36).
PABX
You can connect your DECT telephone system to a PABX for VoIP, ISDN
or analogue telephony.
Establishes the connection to a public telephone network for ana-
logue, VoIP or ISDN calls.
Enables central management of telephone connections, directories,
network mailboxes, etc.

Introduction Criteria for an optimum DECT wireless network 5
Cluster formation with SwyxDECT 700
You can divide DECT base stations that you have installed at your loca-
tion into several independent groups, i.e., clusters, and manage them
using one SwyxDECT 700 Manager.
The DECT Manager is connected to the base stations and the PABX via
the local network and is therefore not dependent on DECT ranges. This
means that you can install separate DECT islands at your location but
manage them centrally, i.e., they have access to the centrally configured
IP connections, directories, etc.
For further information about the options provided by the SwyxDECT
700, and about installing, configuring and operating the devices men-
tioned, see the relevant user guide.
Swyx offers the SwyxDECT 700 SPK PRO (Site Planning Kit) to help you
with measuring the wireless coverage and quality of your DECT network.
For information on setting up and using the measuring equipment, see
Working with the SwyxDECT 700 SPK PRO, page 22 chapter.
LAN
DECT
Manager
Cluster 1 Cluster 2
2.2 Criteria for an optimum DECT wireless network
A carefully planned DECT wireless network with adequate coverage is
the prerequisite for operating a telephone system that offers good call
quality and sufficient call options for all subscribers in all buildings and
areas belonging to the PABX.
It is difficult to assess the technical wireless conditions of a DECT instal-
lation in advance as they are influenced by many environmental factors.
Therefore, the specific circumstances on-site must be determined by
taking measurements. This produces a reliable statement about the
material required as well as the locations of the wireless units.
Various aspects need to be taken into consideration when planning a
DECT wireless network. The following requirements must be considered
when deciding how many base stations are required and where they
should be placed:
Sufficient DECT wireless coverage of the entire site so that every sub-
scriber can be reached.
Sufficient wireless channels (DECT bandwidth), in particular in "hot-
spots", to avoid capacity bottlenecks.
Sufficient overlap of cells to enable synchronisation of the base sta-
tions and to guarantee freedom of movement for subscribers when
making calls.

Introduction Criteria for an optimum DECT wireless network 6
2.2.1 Wireless coverage
The selection of locations where the base stations are to be installed
should guarantee optimum wireless coverage and enable cost-effective
wiring.
Optimum wireless coverage is achieved if the required reception quality
is delivered at all points of the wireless network. If costs need to be con-
sidered, this should be done with a minimum number of DECT base sta-
tions.
To ensure an interference-free switch of call connections from one cell
to another (handover), there must be an area where good reception is
ensured for both base stations. To achieve this, a minimum quality for
reception must be defined.
2.2.1.1 Signal transmission
The ideal signal transmission of a base
station is shaped like a ring, i.e., so that
the registered handsets can be the
same distance away from the base sta-
tion in all directions without the wire-
less signal being interrupted.
Wireless cell
Base station
Overlap
However, the transmission is influ-
enced by various environmental con-
ditions. For example, obstacles such as
walls or metal doors can impede the
wireless signals or interfere with their
even transmission.
You should investigate the actual con-
ditions that the planned wireless net-
work will be subjected to by
measuring the signal transmission of the measuring base station at
appropriate positions.
2.2.2 Capacity
The capacity of the cells must be large enough to guarantee that the sub-
scribers can be reached in high-density traffic. A cell is at full capacity
when the number of connections required for each base station is larger
than the number of possible connections. A SwyxDECT 700 Base can
manage eight connections simultaneously when operated in narrow-
band mode (see Narrowband mode, page 37). In broadband mode, four
simultaneous connections are possible (see Broadband mode, page 35).
There are two options for increasing the capacity:
Reducing the distance between the base stations.
This means that the cells overlap more,
giving the subscriber access to the base
stations of the neighbouring cells. This
results in a more even wireless quality.
However, this can result in considerable
installation costs for an existing system.
Installing parallel base stations.
The cell size remains generally constant
but the number of possible connections
increases. Installing the base stations
close to one another means that the
additional assembly costs are low, but a
minimum distance must be observed
between the base stations. For further
information please refer to Technical conditions, page 9.).

Introduction How to proceed 7
To keep the costs for the devices and for the installation and mainte-
nance low, as few base stations as possible should be installed.
2.2.3 Overlapping and synchronising
For interference-free cooperation in a multi-cell DECT network, the base
stations must synchronise. In order to synchronise the base stations and
ensure a smooth handover, the cells must overlap.
A sufficient number of large overlapping zones between neighbouring
cells must be ensured. To achieve synchronisation, the reception must
be of sufficient quality to ensure that the base stations can receive one
another securely. For a handover, a handset must have a connection of
sufficient quality to both base stations. You will find information about
possible interferences in section Defining limit values, page 17.
The more densely the base stations are installed, the greater the overlap.
Here, a compromise must be found between keeping the area relatively
open and installing the lowest possible number of base stations.
Handover overlap
Synchronisation overlap
2.3 How to proceed
Use the following guide to quickly locate the most important topics.
Information on ... is located here
Determining the requirements for the tele-
phone network
Determine the requirements for the
telephone network and collect information
about the environmental conditions for the
planned DECT wireless network.
see Determining the
requirements for the
telephone
network, page 8
Creating an installation plan
Create a building plan and enter the planned
DECT base stations in this plan. You should
take account of the general conditions deter-
mined and the technical requirements of
DECT telephony in the process.
see Creating a planning
drawing, page 14
Taking measurements
Use the installation plan to take measure-
ments and adapt the installation plan to your
measurement results.
see Taking
measurements, page 16
Working with the measuring equipment
Have you purchased the SwyxDECT 700 SPK
PRO (Site Planning Kit)? Here you can read
about how to set up the measuring equip-
ment and how to use it to take measure-
ments.
see Working with the
SwyxDECT 700 SPK
PRO, page 22
Special environments
Do you want to set up your DECT network in
a difficult environment?
Helpful information and tips are available
here.
see DECT installations in
special
environments, page 31
If you have any questions about using your measuring devices, please con-
tact our Customer care team (see Customer care and help, page 33).

Projecting the DECT network Determining the requirements for the telephone network 8
3 Projecting the DECT network
There are a number of conditions to be considered when setting up a
DECT network. They affect the subscribers' requirements for the tele-
phone system as well as the technical requirements for the DECT wire-
less network. These conditions must therefore be recorded and
evaluated in a projection phase.
To project your DECT network, proceed as follows:
First determine the requirements for the telephone network and
establish the environmental conditions for the DECT wireless net-
work.
Define how many base stations are required and their probable opti-
mum positioning. Create an installation plan for the base stations.
Take measurements to check whether the positioning of the base
stations at the assumed positions meets the requirements and
whether the reception and sound quality is sufficient everywhere. If
necessary, change the installation plan to optimise the DECT wireless
network.
3.1 Determining the requirements for the
telephone network
Clarify the following questions to determine the requirements for the
telephone network:
3.1.1 Subscribers and subscriber behaviour
How many employees should be able to make calls and how many
subscribers should be able to make calls simultaneously?
How many handsets are required?
How many base stations are required?
Where should telephone calls be possible?
In which buildings (floors, stairwell, basement, underground
garage)?
Outdoors (on footpaths, on the car park)?
For further information please refer to Outside area, page 31.
How are the handsets distributed from a location perspective?
How many calls will be made?
What is the telephony behaviour of the subscribers? How long
is the average call?
Where are the hotspots, i.e., where do a lot of subscribers
gather simultaneously (open-plan office, canteen, cafeteria,
etc.)?
Where are telephone conferences held? How many telephone
conferences are held and how long are these?
3.1.2 Environmental conditions
Where is the site that is to be covered by the DECT wireless network?
Total area of the required wireless coverage
Position and dimensions of the rooms, building plan
Number of floors, basements
What is the basic structure of the building?
What materials and construction types have been used for the
buildings?
What type of windows does the building have (e.g., tinted
glass)?
What construction changes are expected in the near future?
What disruptive influences can be identified?
What are the walls made of (concrete, brick, etc.)?
Where are the lifts, fire doors, etc. located?
What furniture and devices are present or planned?
Are there other wireless sources in the vicinity?
For detailed information on material characteristics and interference fac-
tors, see Material characteristics and interference factors, page 13.
Request a building plan that shows positions and dimensions and that can
be used to document the subsequent installation planning.