Nokia DNT2Mi-fp user manual Data interface, Data lead time

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DNT2Mi-fp Data Network Terminal User manual

Table 6.

2 M data interface

 

 

 

Interface type

G.703 (2 Mbit/s) 120-ohm symmetrical

 

 

Maximum allowed timing jitter at receiver

According to ITU-T G.823

timing

 

 

 

 

Maximum generated timing jitter at

According to ITU-T G.823

receiver timing

 

 

 

Frame structure

According to ITU-T G.704

 

 

Relevant ETSI ONP standards

ETS 300 246, ETS 300 247,

 

 

ETS 300 418, ETS 300 419

 

 

Electrical characteristics

According to ITU-T G.703 2048 kbit/s

 

 

Common mode rejection

50 dB

 

 

Return loss (120 or 75 ohms;1 kHz to 4.5

20 dB

MHz)

 

 

 

 

 

Connector

 

RJ-45

 

 

 

Data lead time

Data lead-time means the time which is needed to transfer the data from the incoming 2M data interface of ACL2i to the outgoing 2M data interface of DNT2Mi-fp at the other end of the line.

The lead-time of the data from ACL2i to DNT2Mi-fp depends on the line rate selected as follows:

40 (60)

© Nokia Corporation

DN0445814

 

Nokia Proprietary and Confidential

Issue 2-0 en

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Contents DNT2Mi-fp Data Network Terminal Product code Product versionsContents Page Document Date Comment Product collection and disposal within the European UnionPage About this document Page PDHLocal Network Exchange Introduction to DNT2Mi-fpDNT2Mi-fp BTS Shdsl Alarm LED Power LEDFront view Page Wall mounting Rear panelFastener Line interface Power supplyPin modular jack, RJ-11 DSL Line Selection of Power Supply option is done by strapping Strapping instruction for Power Supply48V DC Supply Remote Power Supply defaultExternal AC/DC converter Supply Removal instruction Remote power feed through line 48VDC Converter Earthing bar Mm2 wire 110/230 V AC704/2M Pin modular jack Pin Data interface RJ-45 Terminal interfaceSymmetrical G.704/2M interface Page Use of signal 108 when using Mste ManagementCode Name Connector type Length DIP Switch LMI Interface type selection107 HiZ Tx b OUT 108 109 Tx a OUT 103 Rx b 104 DIP-switch Q1 management busPage Automatic power-up test CommissioningManagement Timing sourceQ1 transmission speed Q1 6,1,1 Q1 address Q1 6,1,2Power backoff Q1 6,3,6 Line settingsLine interface Q1 6,3,3 Port settings Protection settingsMeasurements After the testsPage Getting general information MaintenanceS65692.01 A0 Serial number 4H0415 Monitoring alarms DNT2Mi AS Line No incoming signalDNT2Mi-fp Code Severity Q1 messageSB 1, Port TestingSB 2, Line Port Interface Line Q1 management Automatic controllPort Interface Line Interface Checking measurements and statistics Measurements via Q1Monitoring a line DNT2Mi-fp statisticsInformation Abbreviation Description And/or ratio Statistics values via Q1System counters Q1 8,3 Technical specifications DNT2Mi-fp dimensionsEnvironmental and mechanical Line interface in accordance with ITU-T G.991.2Data interface Data lead timeData lead-time ACL2i to DNT2Mi-fp = 3 to 32 192 kbit/ to 2048 kbit/sPower consumption DNT2Mi-fp power supplyPower supply external AC/DC converter Safety DC power supplyRemote power supply Mean time between failure MtbfPage Factory settings Service settingsLine interface settings Data interface settings E1Alarm limits Fault display Identifications Controls Settings Measurements StatisticsUser priviliges GeneralMain Q1 menu structure Identifications menu 2,1 Controls menu Settings menu structure 2,1Settings menu structure 3,1 1003,1,2 3,1,42,1..5 Give filling value 0 orMeasurements menu structure Statistics menu structure 3,1..2,0 DNT-fp privileges 10,110,3 10,4