Rohde & Schwarz ND 951 Installation And Commissioning Manual Download Page 1 | Manualshive

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R&S BICK Mobilfunk GmbH

E1-bo

951_ENG.DOC

Page: 1 / 14

Installation and Commissioning

Base Station System ND 951

Part.-No.: 90ND0951IN02

DVers.: 01 / 28.01.99

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Summary of Contents for ND 951

Page 1: ...R S BICK Mobilfunk GmbH E1 bo 951_ENG DOC Page 1 14 Installation and Commissioning Base Station System ND 951 Part No 90ND0951IN02 DVers 01 28 01 99 ...

Page 2: ...ion Amendment Date Author Comment 01 99 01 28 E1 gp bo TDK lw Original Version Copyright by R S BICK Mobilfunk GmbH This document or any part thereof may not be reproduced or distributed in any form without prior written permission We reserve the right to make amendments in respect of technical progress ...

Page 3: ...d external Alarms 7 2 4 Booting 8 2 4 1 TR Cassette Configuration 8 2 4 2 TX Antenna Alarm Number 8 2 4 3 RX Multicoupler Alarm Number 9 2 4 4 TX Antenna VSWR Alarm Level 1 9 2 4 5 TX Antenna VSWR Alarm Level 2 9 2 4 6 Password 9 2 4 7 Adjusting the Transceiver 10 2 4 8 Local Block Separating the Transceivers from the trunked Radio System 10 2 4 9 RX Configuration 10 2 4 10 TX Power Level 10 2 4 1...

Page 4: ...revention can be found in the accident prevention regulations Allgemeine Vorschriften VBG 1 1 Works on electrical systems have to be carried out in accordance with the accident prevention regulations Elektrische Anlagen VBG 4 If the device is used outside the Federal Republic of Germany the respective national regulations have to be complied with Attention Work on this electrical system must only ...

Page 5: ...ace which connects up the users of the trunked radio system the functional units of the trunked radio system and its users To provide these functions the ND 951 has the following basic functions Connection for 4 wire lines for the internal coupling to the exchange Receiver transmitter modules Self test facilities Antenna connection modules for receivers and transmitters 1 4 Aids Measuring Instrume...

Page 6: ...e radio channel number which is to be adjusted at the receiver transmitter is linked with the slot at the LIA to which it is connected 2 2 Hardware Adjustments Jumper The ND 951 has a wide range of control software so that it is not necessary to adjust the jumpers during the installation and commissioning Exceptions are the mains power supplies PS914DC and PS928DC that are switch selectable from e...

Page 7: ...itching over the mains power supplies The mains power supplies are disconnected from the sub rack At the top of the left panel under the protection grid is a slide switch marked with 48V 60V This switch can be moved into the correct position eg with a screw driver When it is adjusted the mains power supply must be marked with the respective voltage Moreover the power connection can be made to the ...

Page 8: ... of the CCU with a serial cable The dialogue with the CCU is carried out by means of a terminal program The adjustments are 19200 Baud N 8 1 If the CCU was barred with the command A900 the base stations can be accessed with the command A900 The transceiver addresses are called up with the command Ax x refers to the slot Further basic Adjustments after the Booting Further basic adjustments that hav...

Page 9: ...evel 1 The TX antenna alarm level 1 for the 4 TX antennas is adjusted and changed with the commands F71 F74 The alarm level in relation to the VSWR is eg set 1 1 5 F71 15 F72 15 F73 15 F74 15 2 4 5 TX Antenna VSWR Alarm Level 2 The TX antenna alarm level 2 for the 4 TX antennas is adjusted and changed with the commands F75 F78 The alarm level in relation to the VSWR is eg set 1 2 0 F75 20 F76 20 F...

Page 10: ...and can be used together with the cabinet number B1 B2 etc If the transceivers of a cabinet are not to be transmitted at the same time the adjustments are carried out separately for each transceiver 2 4 8 Local Block Separating the Transceivers from the trunked Radio System Before adjusting the transceiver it has to be separated from the trunked radio system 01 2 4 9 RX Configuration For a standar...

Page 11: ...talled and block alarm is to be triggered off in case of inaccuracies the following has to be entered 77 D 77 EE 2 4 13 Alarm Level from the TX Combiner Test Point The alarm level should be adjusted slightly higher than the measured value of command 12 if all transmitter combiners are tuned and all transmitters are switched on For example 1 4 V DC 78 140 78 EE 2 4 14 TX Line Level The line level i...

Page 12: ... 12 The display of the combiner alignment is now aligned with the minimum value Finally the transmitter is switched off 10 This procedure is repeated for all channels When all channels are aligned it is recommended to repeat the whole alignment for all channels It is not necessary to switch off all transmitters while this is done To simplify the procedure and to make it more precise it is useful h...

Page 13: ...roblem Solving If the LIA port that belongs to a channel can t be commissioned by the system successfully this can be recognized by the status of the LED of the LIA port the status of the transceiver or the absence of the activation message to the network management In this case it is necessary to have a look at the messages that have come in at the OMC NEOS addressed to the port In most cases the...

Page 14: ...especially Interface DOC ACCESSNET CHN Overlay 90ACN15EDO26 Literature 3 Features Lines Quality 90FB0037DF02 Literature 4 Features Status Messages 90FB0046DF02 Literature 5 ND 950 Base Stations System User Manual Rev V1 01 5 Index Glossary I IF Interface 13 L LIA Line interface analog 6 13 14 M MMX Mobile mobile eXchange 4 6 7 8 13 MSC Master system controller 8 O OMC Operating and maintenance com...

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