Related Manuals for Gigaset Pro N720 DECT IP
Summary of Contents for Gigaset Pro N720 DECT IP
- Page 1 N72 0 DECT IP Multicell System Site Planning and Measurement Guide VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299...
- Page 2 VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299...
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Page 3: Table Of Contents
The Gigaset N720 DECT IP Multicell System ........ -
Page 4: Safety Precautions
Your Gigaset is compatible with the majority of digital hearing aids on the mar- ket. However, perfect function with all hearing aids cannot be guaranteed. The handset may cause an unpleasant humming or whistling noise in hearing aids or cause them to overload. -
Page 5: Introduction
– Enables division into subnets (Cluster formation) – Forms the interface to an IP PABX (e.g., Gigaset T500 PRO or Gigaset T300 PRO) A Web user interface is available for configuring and administering the DECT network. Gigaset N720 IP PRO DECT base stations –... - Page 6 These are provided on the product CD or on the Internet at www.gigaset.com/pro. 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...
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Page 7: Criteria For An Optimum Dect Wireless Network
Introduction 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 installation in advance as they are influenced by many environmental factors. - Page 8 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 Gigaset N720 IP PRO can manage eight connections simultaneously when operated in £...
- Page 9 Introduction 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. Synchronisation overlap Handover overlap A sufficient number of large overlapping zones between neighbouring cells must be ensured.
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Page 10: How To Proceed
Working with the Gigaset measuring equipment page 29 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 11: 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 12: Conditions For The Positioning Of The Base Stations
Conditions for the positioning of the base stations Features of the Gigaset N720 DECT IP Multicell System A Gigaset N720 DM PRO DECT Manager can manage a maximum of 20 base stations and 100 handsets. The DECT network can be divided into clusters; i.e., you can install several independent DECT islands that are managed centrally by a DECT Manager. - Page 13 0.5 m to the ceiling. We recommend installing all base stations at the same height. The Gigaset N720 IP PRO base stations require an Ethernet connection to the PABX, i.e., it must be possible to connect to the LAN.
- Page 14 If it does not see any base station with a higher sync level, it cannot synchronise. A Gigaset N720 IP PRO base station shows its synchronisation status with an LED.
- Page 15 Projecting the DECT network During the synchronisation planning, make sure that the distance to the base station Correct: with sync level 1 is as short as possible from all sides, i.e., that there are as few levels as possible. It makes sense to select the station Incorrect: that is at the centre of your DECT network as the base station with sync level 1.
- Page 16 Projecting the DECT network The capacity must always be adjusted to the highest possible traffic volume if capacity bottlenecks are to be excluded. Traffic volume The traffic volume is expressed in "erlangs (E)". One erlang corresponds to the continuous full capacity utilisation of one connection channel in a specific period. Erlangs are usually calculated over an observation period of one hour.
- Page 17 30 simultaneous connections. With a maximum of eight handsets per base station, this means that four Gigaset N720 IP PRO base stations would be required. If we assume that a maximum of 50% of the available handsets are making a call simulta- neously in a hotspot, 60 handsets can be used with four base stations.
- Page 18 Projecting the DECT network Material characteristics and interference factors There are a number of interference factors that influence the range and quality of the transmission in particular. The types of interference factors include: Interference as a result of obstacles that diminish the signal transmission, creating radio shadows Interference through reflection that restricts the call quality (e.g., crackling or back- ground noise)
- Page 19 Projecting the DECT network Interference from other cells and networks DECT is very robust against interference from other wireless networks. For example, co- existence with WLAN is not a problem. Most other asynchronous DECT single base sta- tions do not present a problem either. Problems may occur in special cases, such as an environment where there is a very high level of DECT usage.
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Page 20: 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 net- work Your synchronisation planning The technical conditions for the wireless DECT. - Page 21 Projecting the DECT network Positioning the base stations in the plan Now enter the base stations. Computers 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.
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Page 22: Taking Measurements
Planned the number of base stations and their positions ( page 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 page You can now start the measurements for your planned DECT network. -
Page 23: Defining Limit Values
Taking measurements Document the progress of the measurement by entering it in the layout plan (horizon- tally and, where applicable, vertically) and in a measurement log. 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 environ- ment with photographs. - Page 24 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 £ 48). A very good reception power is approximately –50 dBm. Systems that are page measured at up to –60 dBm generally offer a good quality.
- Page 25 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. Therefore, in addition to the reception power, the is also displayed on the Frame quality...
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Page 26: 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 eve- ry position in the required coverage area. - Page 27 Taking measurements Measuring the cell of a base station ¤ Temporarily secure the measuring base station in the position in which the base sta- tion is to be installed. ¤ Establish a telephone connection between the two measuring handsets or activate £...
- Page 28 Taking measurements If you have measured the cells of several base stations, the results may look like this, for example: Measuring Base station A Base station B Base station C Base station D point –60 dBm/100% –50 dBm/98% –65 dBm/100% –48 dBm/100% –55 dBm/98% –65 dBm/100%...
- Page 29 Taking measurements ¤ Install the measuring base station at this location and take the measurements as for the first position. ¤ Enter the results in the plan and the measurement log. ¤ Now take this measurement for all planned assembly locations. Example of a measurement log for measuring the synchronisation overlap Measuring Base station A...
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Page 30: 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 N720 IP PRO and Gigaset N720 DM PRO. Recommendation After installation and commissioning of the DECT network, the voice quality, roaming and handover should be checked again with the system telephones. -
Page 31: 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 32: Further Recommended Accessories
Working with the Gigaset N720 SPK PRO §§6§§ Two Gigaset S810H measuring handsets (specially calibrated for measurement opera- tions) §§7§§ Eight rechargeable batteries (AAA) for the measuring handsets (two reserve batteries each) §§8§§ Two chargers with power adapter for the measuring handsets §§9§§... -
Page 33: Before You Begin
Working with the Gigaset N720 SPK PRO Before you begin Please note that the measuring devices run on batteries that must be charged before you start taking measurements. Bear this in mind when planning your time. You need eight batteries for the measuring base station, provided as a battery pack. The case contains a charging device for charging the battery pack. - Page 34 Working with the Gigaset N720 SPK PRO ¤ Insert the battery pack into the battery §§3§§ compartment in the base carrier ¤ Slide the lid onto the battery compart- §§4§§ ment until it clicks into place. Charging the batteries The measuring base station is con- nected to the power supply by means of §§1§§...
- Page 35 Working with the Gigaset N720 SPK PRO Please note The measuring station has sufficient power when the LED on the front is illuminated. To save energy, position the switch on "Charge" when you do not need the device. Alternative power supply The measuring base station is supplied with power via the battery pack inserted in the battery carrier.
- Page 36 Working with the Gigaset N720 SPK PRO Connecting to a switch with PoE functionality (Power over Ethernet). ¤ Connect the LAN socket on the §§1§§ to a measuring base station connection on an Ethernet §§2§§ switch Use a shielded Ethernet cable.
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Page 37: Starting Up The Measuring Handset
Working with the Gigaset N720 SPK PRO Starting up the measuring handset ¤ Remove the measuring handsets and §§2§§ accessories from the case. For each hand- set there is: §§1§§ One charger §§2§§ One power adapter §§1§§ §§3§§ One battery cover §§4§§... - Page 38 Working with the Gigaset N720 SPK PRO Initial charging and discharging of the batteries The correct charge status can only be dis- played if the batteries are fully charged and discharged first. ¤ Charge the handset in the charger for 8.5 hours.
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Page 39: Operating The Measuring Handset
Please note This section only describes the functions of the handset relevant for measurements. For information on the standard functions of the Gigaset S810H handset, see the user guide for the device. See the product page at www.gigaset.com. The measuring handsets... - Page 40 Working with the Gigaset N720 SPK PRO Display not in idle status If the display is not in idle status, it shows the measure- -30dBm-1-04-50H-100 ment data at the top edge. Checking the quality of the connection to the measuring base...
- Page 41 Working with the Gigaset N720 SPK PRO Activating/deactivating speaker mode You can also test the quality of the connection via the loudspeaker instead of via the headset. Press the speaker key to switch between earpiece mode and speaker mode. ¤...
- Page 42 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 In the display, the signal strength (RSSI value) is displayed in dBm as standard.
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Page 43: Dect Installations In Special Environments
DECT installations in special environments DECT installations in special environments chapters describe all pre- Projecting the DECT network Taking measurements requisites and steps for planning a DECT network. In addition to the examples and appli- cations described there, this chapter contains notes for special construction or topo- graphical requirements. - Page 44 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 points: Should calls only be possible within the internal rooms or across the whole site, even in the outside area? In which area should handover be guaranteed? The cheapest way to connect separate parts of buildings with the PABX is to use separate...
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Page 45: Customer Care And Help
Environment Customer care and help Questions? For rapid assistance, refer to this user guide or visit www.gigaset.com/pro. The trade outlet where you bought your PABX will be happy to help with further questions relating to your Gigaset Professional PABX. Questions and answers If you have any queries about the use of your telephone, visit our website at www.gigaset.com/pro. -
Page 46: Appendix
European Economic Area and Switzerland. If used in other countries, it must first be approved nationally in the country in question. Country-specific require- ments have been taken into consideration. We, Gigaset Communications GmbH, declare that this device meets the essential requirements and other relevant regulations laid down in Directive 1999/5/EC. -
Page 47: Specifications
Each handset is supplied with four recommended batteries. Operating times/charging times for batteries The operating time of your Gigaset devices depends on the capacity and age of the bat- teries and the way it is used. (All times are maximum possible times). -
Page 48: Accessories
Appendix Accessories Ordering Gigaset products You can order Gigaset products from your specialist retailer. Case with measuring equipment Item number Gigaset N720 SPK PRO S30852-H2316-R101 Spare parts for the Gigaset N720 SPK PRO Spare part Measuring base station Gigaset N720 SPK PRO... -
Page 49: 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 50 Glossary The selection of the codec for the telephone connection therefore influences the voice quality and, via the available bandwidth, the possible number of usable channels per base station. £ Codecs in Broadband mode 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.
- Page 51 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. HDSP™ High Definition Sound Performance, Gigaset technology for extraordinary sound quality in which the sound in calls is transmit- £ ted via the Internet in double (8 kHz).
- Page 52 Received Signal Strength Indication Indicator for the reception field strength of radio signals. On the measuring handsets of the Gigaset N720 SPK PRO, RSSI is specified as a percent- age value. In this case, the maximum assumed signal strength is defined as 100%.
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Page 53: Index
Battery pack ..Gigaset N720 DECT IP Multicell System ......charging . - Page 54 ........Material characteristics Planning drawing .
- Page 55 A31008-M2316-L101-2-7619 VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299...