Gigaset N870 IP Pro Site Planning And Measurement Manual
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Gigaset N870 IP Pro Site Planning And Measurement Manual

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N870 IP PRO
Multicell System
Site Planning and Measurement Guide

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Summary of Contents for Gigaset N870 IP Pro

  • Page 1 N870 IP PRO Multicell System Site Planning and Measurement Guide...

  • Page 2: Table Of Contents

    Working with the Gigaset N720 SPK PRO ........

  • Page 3: Safety Precautions

    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 your Gigaset product see "Technical data").

  • Page 4: Introduction

    The Gigaset N870 IP Multicell System The Gigaset N870 IP Multicell System 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.
  • Page 5 Up to 250 handsets can be connected per DECT manager; up to 60 DECT calls can be held simultaneously (VoIP calls, and phone book or Info Centre accesses). Information on the functions of certain handsets on Gigaset base stations is available from wiki.gigasetpro.com.
  • Page 6 Introduction • Cluster forming A cluster comprises a number of base stations of a DECT manager that synchronise with each other to enable handovers, roaming and load balancing. Handover: The DECT connection of a handset is passed to another base station during a call.
  • Page 7 Load balancing is not possible. For more information on this, refer to Section Using multiple ¢ DECT managers P. 16. Installations Different build levels of the Gigaset N870 IP Multicell System can be installed. Small Medium Large – XXL Device with INT + DM...

  • Page 8: Criteria For An Optimum Dect Wireless Network

    Gigaset devices mentioned, see the relevant user guide. These are provided on wiki.gigasetpro.com. Gigaset offers the Gigaset N720 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 Gigaset measuring equipment, refer to Section Working with the Gigaset N720 SPK PRO ¢...
  • Page 9 Introduction 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 considered, this should be done with a minimum number of DECT base stations.
  • Page 10 Which codecs are approved can be set from the web interface. The device function also has a bearing on capacity. A Gigaset N870 IP PRO can only be deployed as a base station, a DECT manager with base station, or an integrator with DECT manager and base station.
  • Page 11 Introduction If all the connection channels are busy, load balancing is used to find another base station able to take the call request. Load balancing should only be deployed in exceptional cases however. Design the network such that enough connections are always available.
  • Page 12 Maximum distance for stable, good signal reception on the handsets Maximum distance to detect overlaps More information on LAN synchronisation is in operating instructions “Gigaset N870 IP Multicell System – Installation, Configuration and Operation”...

  • Page 13: How To Proceed

    … Working with the Gigaset measuring equipment P. 37 Have you purchased the Gigaset N720 SPK PRO (Site Planning Kit)? Here you can read about how to set up the measuring equipment and how to use it to take measurements.

  • Page 14: Projecting The Dect Network

    Projecting the DECT network 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 telephone system as well as the technical requirements for the DECT wireless network. These conditions must therefore be recorded and evaluated in a projection phase.

  • Page 15: Conditions For The Positioning Of The Base Stations

    Conditions of the Gigaset N870 IP Multicell System In the planning stage, you must take into account which build level of the Gigaset N870 IP PRO multi-cell system you install, which codecs you use and which role a device used has.
  • Page 16 Projecting the DECT network Device role The number of parallel calls possible reduces when a Gigaset N870 IP PRO device houses ¢ a DECT manager, or integrator and DECT manager, at the same time as a base station ( P. 10).
  • Page 17 • We recommend installing all base stations at the same height. • Gigaset N870 IP PRO base stations require an Ethernet connection to the PABX, i.e. it must be possible to connect to the LAN. • Gigaset N870 IP PRO base stations are powered by PoE (Power over Ethernet, IEEE 802.3af).
  • Page 18 If it does not see any base station with a higher sync level, it cannot synchronise. A Gigaset N870 IP PRO base station shows its synchronisation status with an LED.
  • Page 19 ... The number of available connection channels on a Gigaset N870 IP PRO depends on different ¢ factors...
  • Page 20 • It is a multi-cell system with only one DECT manager. The DECT manager system includes no base station, i.e. it is provided as a separate Gigaset N870 IP PRO device. All other devices only include one base station. •...
  • Page 21 For smaller systems, an approximate evaluation of the traffic volume can be sufficient. Example: Calculation details: • It is a small-scale system. One Gigaset N870 IP PRO contains the integrator, DECT manager and a base station. • Narrowband connections with codec G.711 or G.729 are approved.
  • Page 22 Projecting the DECT network connections. With a maximum of eight handsets per base station, this means that four Gigaset N870 IP PRO base stations would be required. If we assume that a maximum of 50% of the available handsets are making a call simultaneously in a hotspot, 60 handsets can be used with four base stations.
  • Page 23 Projecting the DECT network Loss of range through building materials in comparison to a free wireless field: Glass, wood, untreated Approx. 10% Wood, treated Approx. 25% Plasterboard Approx. 27 – 41% Brick wall, 10 to 12 cm Approx. 44% Brick wall, 24 cm Approx.

  • Page 24: Preliminary Identification Of The Positions Of The Base Stations

    Projecting the DECT network Preliminary identification of the positions of the base stations Now plan the positions of the base stations. Take the following into consideration: • The information you have collected regarding the requirements for the telephone network • Your synchronisation planning •...
  • Page 25 Projecting the DECT network Positioning the base stations in the plan Now enter the base stations. Computer store Stairs • The example shows five base stations. • One base station is used to show how, by drawing in transmission directions for the wireless signal, you can estimate how many base stations can see each other and which building areas the wireless signal could reach.

  • Page 26: Taking Measurements

    Planned the number of base stations and their positions ( P. 24) • Set up and operated the measurement equipment. If you are using the Gigaset N720 SPK PRO (Site Planning Kit), you can find information about ¢ setting it up on P. 37.

  • Page 27: Defining Thresholds

    Taking measurements • In order to be able to recognise subsequent changes, it is helpful to document the planned assembly positions of the individual measurement series and their environment with photographs. • If the DECT system is to be used for several floors or very high rooms (e.g., with a gallery), you must also measure the vertical range and enter it in a plan of the building.
  • Page 28 Taking measurements Reception power The reception field strength is measured to assess the quality of transmission. The reception power (proportional to the field strength) is displayed on the measuring handset in dBm. A very good reception power is approximately –50 dBm. Systems that are measured at up to –60 dBm generally offer a good quality.
  • Page 29 Taking measurements Connection quality In principle, the measurement of the field strength should always be supplemented by a check of the connection quality. Interference, e.g., through reflection or external systems that influence the voice quality, can also occur with good reception power. The Frame quality is therefore also displayed on the measuring handset in addition to the reception power.

  • Page 30: Measuring The Wireless Range Of The Planned Base Stations

    Taking measurements Measuring the wireless range of the planned base stations Take two different measurements. 1 Measure the connection quality between the measuring handset and measuring base station in their wireless cells to ensure that sufficient voice quality is guaranteed at every position in the required coverage area.
  • Page 31 Taking measurements Measuring the cell of a base station ¤ Temporarily secure the measuring base station in the position in which the base station is to be installed. ¤ Establish a telephone connection between the two measuring handsets or activate the ¢...
  • Page 32 Taking measurements Example of a measurement log for the cell of a base station Measuring Base station A point –60 dBm/100% -65 dBm/98% ... . -73 dBm/70% If you have measured the cells of multiple base stations, the results may look like this, for example: Measur- Base station A Base station B...
  • Page 33 Taking measurements Measuring the synchronisation overlap of neighbouring base stations For the base stations to be able to synchronise, the signal strength between two neighbouring base stations must not be less than –70 dBm. This value applies in good environmental conditions, ¢...
  • Page 34 Taking measurements Example of a measurement log for measuring the synchronisation overlap Measur- Base station A Base station B Base station C Base station D Base station E point -52 dBm/100% -40 dBm/100% -58 dBm/100% ---- -50 dBm/100% -48 dBm/100% ---- -70 dBm/92% -42 dBm/100%...

  • Page 35: Evaluating Measurements

    Once the measurements are complete and the positions of the base stations have been defined, the telephone system can be installed. This is described in the user guide for the Gigaset N870 IP PRO and Gigaset N870 IP PRO.
  • Page 36 Taking measurements Recommendation After installation and commissioning of the DECT network, the voice quality, roaming and handover should be checked again with the system telephones. The web user interface for the telephone system offers different tools for monitoring the operation and diagnosis in the event of problems occurring. ¢...

  • Page 37: Working With The Gigaset N720 Spk Pro

    Working with the Gigaset N720 SPK PRO Working with the Gigaset N720 SPK PRO The Gigaset N720 SPK PRO (Site Planning Kit) helps you to plan and install your DECT multi-cell system. It contains one measuring base station, two measuring handsets and further helpful accessories for exact determination of the DECT environmental conditions for the planned network, and is delivered in a case.

  • Page 38: Further Recommended Accessories

    Working with the Gigaset N720 SPK PRO Further recommended accessories Stand To obtain an exact measurement, we recommend that you mount the measuring base station and battery carrier securely on a stand. The base carrier is fitted with a thread connection for this purpose.

  • Page 39: Setting Up The Measuring Base Station

    Working with the Gigaset N720 SPK PRO Setting up the measuring base station To ensure freedom of movement when measuring and not be dependent on being able to reach a power connection, operate the measuring base station with external batteries. The case contains a battery pack with eight integrated batteries and one charging device for this purpose.
  • Page 40 Working with the Gigaset N720 SPK PRO Charging the batteries The measuring base station is connected to the power supply by means of a cable §§1§§. The charging socket is located behind opening §§2§§, while there is a switch for switching between "Operation"...
  • Page 41 Working with the Gigaset N720 SPK PRO Alternative power supply The measuring base station is supplied with power via the battery pack inserted in the battery carrier. Alternatively, you can also use one of the following power supplies: ¤ Unplug the power cable plug from the base station.
  • Page 42 Working with the Gigaset N720 SPK PRO Connecting to a switch with PoE functionality (Power over Ethernet). ¤ Connect the LAN socket on §§1§§ the measuring base station to a connection on an Ethernet switch §§2§§. Use a shielded Ethernet cable.

  • Page 43: Starting Up The Measuring Handset

    Working with the Gigaset N720 SPK PRO Starting up the measuring handset ¤ Remove the measuring handsets and §§1§§ §§2§§ accessories from the case. For each handset there is: 1 One charging cradle 2 One power adapter 3 One battery cover...
  • Page 44 Working with the Gigaset N720 SPK PRO Initial charging and discharging of the batteries The correct charge status can only be displayed if the batteries are fully charged and discharged first. ¤ Charge the handset in the charger for 5 hours.

  • Page 45: Operating The Measuring Handset

    Operating the measuring handset This section only describes the functions of the handsets relevant for measurements. For information on the standard functions of the Gigaset S650H PRO handset, see the user guide for the device. See the product page at gigasetpro.com.
  • Page 46 Working with the Gigaset N720 SPK PRO Display not in idle mode If the display is not in idle status, it shows the measurement -30dBm-1-04-50H-100 data at the top edge. Checking the quality of the connection to the measuring base station...
  • Page 47 Working with the Gigaset N720 SPK PRO Activating/deactivating metering mode The handset is in metering mode when it is activated. Exiting metering mode You exit metering mode by resetting the handset: £ £ £ System Handset Reset Reactivating metering mode via the service menu If you have exited metering mode, you can reactivate it via the service menu.
  • Page 48 Working with the Gigaset N720 SPK PRO Changing the settings for metering mode In the service menu, you can change the unit of measure and the measurement interval for metering mode. Metering Mode (unit of measure) RSSI measurement On the display, the signal strength (RSSI value) is shown in dBm as standard.

  • Page 49: Dect Installations In Special Environments

    DECT installations in special environments DECT installations in special environments The Projecting the DECT network and Taking measurements sections describe all prerequisites and steps for planning a DECT network. In addition to the examples and applications described there, this section contains notes for special construction or topographical requirements. DECT networks over several floors If the DECT network is to cover several floors of a building, you must consider the following when planning the number and location of base stations:...
  • Page 50 DECT installations in special environments Several buildings Planning a DECT installation for several buildings or for separate parts of buildings requires clarification of the following: • Should calls only be possible within the internal rooms or across the whole site, even in the outside area? •...

  • Page 51: Customer Service And Help

    • Support please refer to wiki.gigasetpro.com. For further information our Gigaset specialised reseller will be happy to help you related to your Gigaset pro- duct. Questions and answers If you have any queries about the use of your telephone, visit our website at gigasetpro.com.

  • Page 52: Appendix

    Switzerland) is subject to national approval. Country-specific requirements have been taken into consideration. Hereby, Gigaset Communications GmbH declares that the radio equipment type Gigaset N870 IP Multicell Sys- tem is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: www.gigaset.com/docs.

  • Page 53: Accessories

    Accessories Operating times/charging times for batteries The operating time of your Gigaset devices depends on the capacity and age of the batteries and the way they are used (all times are maximum times). Battery pack for the measuring base station...

  • Page 54: Glossary

    Glossary Glossary Bandwidth The bandwidth defines the size or transmission capacity of a transmission channel or, more precisely, the difference between the lowest and highest possible frequency on a transmission channel. The bandwidth is specified in Hz. For digital data transmission, the bandwidth determines the data volume that can pass through a transmission channel in a specified period, i.e., the transmission speed (specified in bit/s).
  • Page 55 Glossary G.722 Excellent voice quality. The G.722 codec works at the same bit rate as G.711 (64 Kbit/s per speech connection) but with a higher sampling rate. This allows higher frequencies to be played back. The speech tone is therefore clearer and better than with the other codecs £...
  • Page 56 Possibility for a subscriber with a DECT handset to change from one cell to another during a call or a data connection without interrupting this connection. HD voice Gigaset technology for extraordinary sound quality in which the sound in calls is transmitted £ via the Internet in double Bandwidth (8 KHz).
  • Page 57 Indicator for the reception field strength of radio signals. On the measuring handsets of the Gigaset N720 SPK PRO, RSSI is specified as a percentage value. In this case, the maximum assumed signal strength is defined as 100%. The percentage value represents the signal strength of the package received as a ratio of the maximum possible RSSI (100%).

  • Page 58: Index

    Building property ..Gigaset N720 SPK (Site Planning Kit) Gigaset N870 IP Multicell System ......
  • Page 59 ..... . Planning drawing ..... Playing test melody .
  • Page 60 Issued by Gigaset Communications GmbH Frankenstr. 2a, 46395 Bocholt, Germany © Gigaset Communications GmbH 2018 Subject to availability. All rights reserved. Rights of modification reserved. www.gigaset.com...

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