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TELCOLINK DT - AccessDSL NTU

User Manual

Version: 2.5

Page 16 of 66

Service

DTE

Clock Mode

DCE

Clock Mode

DCE

Clock Direction

xDSL

Clock Mode

Nx64 only

Slave

internal

don’t care

Master

Slave

external

don’t care

Slave

Master

external

codirectional

Slave

Master don’t care

external

contradirectional

Master don’t care

Master

don’t care

Master

Nx64 & fE1

Slave

from E1

don’t care

Master

Slave

from E1

don’t care

Slave

Master

don’t care

Note: Invalid clock modes are ruled out.

3.3.5 Nx64 Block Diagram

The following block diagram shows the receive and transmit path separately. Each direction
possesses a FIFO buffer and a PLL.

Figure 3-4: Nx64 Block Diagram

FIFO

Rx Framer

RxClk_xDSL

RxData_xDSL

Rx PLL

Osc.

FIFO Enable

RxClk_Nx64

RxData_Nx64

RxSync_xDSL

FIFO

Tx Framer

TxClk_xDSL

TxData_xDSL

Tx PLL

Osc.

FIFO Enable

TxClk_Nx64

TxData_Nx64

TxSync_xDSL

TxClk_E1

TxSync_E1

TxData_E1

Service

Содержание DESKTOP TELCO

Страница 1: ...NTU User Manual Version 2 5 Page 1 of 66 DESKTOP TELCO MODEMS E1 G 703 V 35 36 X 21 V 24 NTU MDS92xxx xDSL TRANSMISSION SYSTEMS USER MANUAL Version 2 5 Revision 30 Aug 2008 Document name MDS923AE xxx...

Страница 2: ...eproduced in any part or as a whole transcribed stored in a retrieval system translated into any language or transmitted in any form or by any means electronic mechanical magnetic optical chemical pho...

Страница 3: ...es 12 3 3 NX64 RS232 INTERFACE DCE 15 3 3 1 Nx64 RS232 Services 15 3 3 2 Nx64 RS232 Interface Types 15 3 3 3 Nx64 Clock Directions V 35 V 11 and V 28 only 15 3 3 4 Nx64 Clock Modes V 35 V 11 and V 28...

Страница 4: ...9 7 2 11 Security management SM 49 8 SOFTWARE UPDATE 50 8 1 GENERAL 50 8 2 SOFTWARE DOWNLOAD 50 9 CONNECTORS DESCRIPTION 54 9 1 XDSL CONNECTOR 54 9 2 E1 120 OHM CONNECTOR 54 9 3 E1 75 OHM IN OUT CONNE...

Страница 5: ...Operation 12 Figure 3 2 Synchronous Operation 13 Figure 3 3 Plesiochronous Operation 13 Figure 3 4 Nx64 Block Diagram 16 Figure 3 5 standard Test Loops 18 Figure 4 1 G 826 Performance Evaluation 19 F...

Страница 6: ...arnings INCORRECT USE OF THIS DEVICE USE IN ANY OTHER ENVIRONMENT AND OR CHASSIS HOUSING THAN PROVIDED BY BLACK BOX NETWORK SERVICES MIGHT LEAD TO HARMFUL CONDITIONS FAILURE TO FOLLOW THESE PRECAUTION...

Страница 7: ...TELCOLINK DT AccessDSL NTU User Manual Version 2 5 Page 7 of 66...

Страница 8: ...1 Nx64 RS232 Point to Point Point to Multipoint FXS only with optional board FXO only with optional board Localy Powered 48V DC Remotely powerable Console Management SNMP Management through management...

Страница 9: ...R Figure 2 2 Tabletop Front View N64 RS232 Sub D25 female Connector E1 120 Ohm Sub D15 male Connector Monitor Sub D9 female Connector Local Remote Power Switch Optional EarthTerminal Power Mini Fit 4...

Страница 10: ...e other settings cannot be altered by the master unit over the xDSL link for safety reasons thus default configuration cannot be loaded remotely see chapter 7 for details LTUs are always delivered as...

Страница 11: ...framer operates in the CCS mode Time slot 16 is fully transparent except Multipoint PCM30 mode Consider the CRC4 option when operating in the framed mode 3 2 2 CRC4 Option If operating in the framed m...

Страница 12: ...be set active AIS S AIS will be transmitted to the remote station by AIS R 3 2 6 Transmission of TS16 In Normal and Dual Pair Modes E1 data is loaded to xDSL according ITU T G 991 2 In these modes TS...

Страница 13: ...100 ms 3 2 7 2 Synchronous and plesiochronous operation Both synchronous and plesiochronous operation modes are possible Synchronous operation occurs when the E1 equipment at one end of the xDSL link...

Страница 14: ...the External Clock option Otherwise there will be no defined clock N o t e O r i o n 1 r e p e a t e r s s u p p o r t o n l y s y n c h r o n o u s o p e r a t i o n T o i n c r e a s e s y s t e m p...

Страница 15: ...s accordingly 3 3 2 Nx64 RS232 Interface Types The following interface types data rates are supported SW configurable V 35 64 2048 kbps V 11 V 36 or X 21 cable selectable without termination 64 2048 k...

Страница 16: ...Slave from E1 don t care Master Slave from E1 don t care Slave Master don t care don t care don t care Note Invalid clock modes are ruled out 3 3 5 Nx64 Block Diagram The following block diagram show...

Страница 17: ...ave DSP Core loopback LOOP2 alarm is active on Master and Slave sides Loop1 at Slave Side Setting by terminal command 1 1 1 1 1 0 0 TX Data is looped back to RX at Nx64 Slave Network Interface LOOP1 a...

Страница 18: ...description and Repeater Manual Both the NE LED on the regenerator and the FE LED on the master will be lit amber when Loop2 is active On the master side Loop 1 and Loop2 can only be activated locally...

Страница 19: ...led separately for the E1 side and the xDSL side while on the ADD DROP Repeater CRC generation and detection are handled separately for the E1 side and both xDSL sides On the E1 side four CRC4 check b...

Страница 20: ...tware failure Blinking Red off No EOC connection established On red Normal operation local Green don t care Normal operation remote Don t care green xDSL framer synchronizing Blinking Green Amber don...

Страница 21: ...m SEGD receiving AIS on E1 side AIS S either Loop 1 Loop 2 is activated Analog Loopback is activated Spectrum Transmission activated Displaying a major alarm has a higher priority than displaying a mi...

Страница 22: ......

Страница 23: ...supply with its DC DC converter In case of a failure of the NTU s onboard power supply all LEDs on the front panel will be extinguished Units which support remote power can be powered remotely via xDS...

Страница 24: ...3400 for TMNs with its five sub sets Sub set Short form Performance management PM Fault and maintenance management FMM Configuration management CM Accounting management AM Security management SM As Bl...

Страница 25: ...hen system prompts for Username username and then password Username field is fixed only ADMIN and USER names are permitted 7 2 3 Command set tree for Normal and Dual modes Administrator access only Ma...

Страница 26: ...PCM TIME TLMSET PAYLOAD LOOP1 IDLECAS LOOP2 IDLEPAT STARTAL SIGSLOT RESTART MODE SPECTRUM PLL ACO AUTORST RESET BASERATE ADAPT SETADDR SCALE DEFAULT ANNEX ID SOM Figure 7 2 Command Set Tree Multipoint...

Страница 27: ...nd SYNTAX CONNECT n or CO n The CONNECT command opens a virtual terminal connection to the remote unit i e characters received at the local unit s V 24 interface are sent to the remote unit and charac...

Страница 28: ...on the local xDSL side 2 CRC6 B Far end block error indicating errored blocks received on the remote xDSL side 3 Errored block EB A block in witch one or more bits are in error 4 Errored seconds ES A...

Страница 29: ...frames received on the local 2Mbit s E1 side 2 E bit CRC 4 indication bit indicating received errored sub multiframes on the 2Mbit s E1 remote side 3 FAS Errored Frame Alignment Signal received on the...

Страница 30: ...TELCOLINK DT AccessDSL NTU UserManual Version 2 5 Page 30 of 66 For the Nx64 interface only the alarm history is available...

Страница 31: ...data 7 2 8 6 DATE Command SYNTAX DATE date or DA date Without parameters this command displays current date With parameters this command sets the date FORMAT DD MM YYYY 7 2 8 7 TIME Command SYNTAX TI...

Страница 32: ...dB remote 39 0 dB xDSL SNR local 41 3 dB remote 38 8 dB xDSL SNR local 38 6 dB remote 39 0 dB CO_01_FMM SQ signal quality trace off CO_01_FMM Note Units in Multipoint and Dual Pair modes represent da...

Страница 33: ...Indicates a CRC error on the incoming xDSL frame A segment anomaly indicates that a regenerator operating on a segment has received corrupted data and therefore the regenerated data is unreliable CRC...

Страница 34: ...ubscriber E1 side AIS R AIS Alarm Indication Signal detected at subscriber E1 side of remote unit BER S Excessive Block Error Rate on subscriber side If CRC4 enabled BER S on if more than 805 CRC4 Err...

Страница 35: ...EPT 2 REPT 3 REPT 4 REPT 5 REPT 6 REPT 7 REPT 8 REPT 9 REPT10 REPT11 REPT12 REPT13 REPT14 CO_FMM Definitions Off no external alarm detected On external alarm is active Det external alarm have been det...

Страница 36: ...ions table for distance ext alarms REPTR ALM1 ALM2 ALM3 REPT 1 RES MIN MAJ REPT 2 MAJ MIN RES REPT 3 MAJ MIN RES REPT 4 REPT 5 REPT 6 REPT 7 REPT 8 REPT 9 REPT10 REPT11 REPT12 REPT13 REPT14 CO_FMM Def...

Страница 37: ...rameters n L local unit 1 14 repeater number R remote unit Note In the Multipoint mode the LOOP2 command has additional parameters which assign the necessary xDSL interface 7 2 9 11 STARTAL Command SY...

Страница 38: ...NTAX SPECTRUM or SP The SPECTRUM command initializes the xDSL analog output for power measurements CO_FMM SPECTRUM Analog spectrum started CO_FMM SPECTRUM Analog spectrum stopped CO_FMM Note In Multip...

Страница 39: ...ew configuration is automatically displayed 7 2 10 2 HW Command SYNTAX HW Display actual hardware configuration 7 2 10 3 TSSHOW Command SYNTAX TSSHOW A E N or TSS A E N This command displays the actua...

Страница 40: ...ing timeslot processing on Signaling slot is transmitted transparently 7 2 10 10 PAYLOAD Command SYNTAX PAYLOAD a b or PL a b This command sets the numbers of channelTS to be transmitted to xDSL inter...

Страница 41: ...TELCOLINK DT AccessDSL NTU UserManual Version 2 5 Page 41 of 66 AUTO standard config TS16 or last TS if baserate 16 a 1 31 for DSL A e 1 31 for E1 G703...

Страница 42: ...6 X 21 with termination 3 V 28 synchronous 4 RS232 asynchronous 7 2 10 16 BITRATE Command SYNTAX BITRATE n or BTR n This command sets the Nx64 payload bit rate to 1 32 x 64 kbit s for V 35 and V 11 or...

Страница 43: ...YNTAX MODE N D M or MO N D M This command sets the operation mode Parameters N Normal mode D Dual pair mode M Multipoint mode 7 2 10 21 MASTER Command SYNTAX MASTER ON OFF or MA ON OFF Set xDSL master...

Страница 44: ...rcent 2 0 5 percent 3 1 percent 4 2 percent Note for correct data transmission on rate 115200 via RS232 interface two stop bits must be used AUTORNC NC NC 7 2 10 27 ST Command SYNTAX AUTORST ON OFF or...

Страница 45: ...e type ECHO and the unit will respond with the programmed address 7 2 10 31 SCALE Command SYNTAX SCALE A B n or SC A B n This command sets output TX power offset from ITU T value in dBm Parameters 0 0...

Страница 46: ...ertion AIS Detection on AIS Generation on xDSL Mode Normal Service E1 only Master Slave Slave PLL off Autorestart on Base Rate 03 32 Rate Adaption on Annex A_B Power Offset 00 0 dBm 7 2 10 35 1 E1 onl...

Страница 47: ...ock Mode internal internal internal remote remote Remote Clock Direction contradirecti onal contradirecti onal contradirecti onal contradirecti onal contradirecti onal Contradirecti onal Use Timeslot...

Страница 48: ...d inverted inverted inverted inverted inverted V 54 Loops disabled disabled disabled disabled disabled disabled Clock Mode from E1 from E1 from E1 remote remote remote Clock Direction contradirectio n...

Страница 49: ...off Autorestart on on on on Base Rate 17 16 17 17 Rate Adaption off off off off Annex A_B A_B A_B A_B Power Scale Offset 0 0 not changed 7 2 11 Security management SM Security management activated En...

Страница 50: ...er and the LTU NTU Monitor connector and the newest release of the Black Box software 8 2 Software download To update the software on your LTU NTU you have to run through the following steps 1 Switch...

Страница 51: ...TELCOLINK DT AccessDSL NTU UserManual Version 2 5 Page 51 of 66 5 Choose Select Device in the Setting menu select the device AccessDSL and press Ok 6 Choose the newest software version and press Open...

Страница 52: ...NK DT AccessDSL NTU UserManual Version 2 5 Page 52 of 66 7 Execute the command Connect COM in the menu Action 8 Switch on the power of your LTU NTU 9 The following message appears on the screen then p...

Страница 53: ...download the FE LED is green blinking and the NE LED is amber On the Windows screen you see the ongoing download 11 If the download is successfully finished the Flash Loader program sends the followin...

Страница 54: ...ide four wire unit only 7 Shield DSL cable shield 8 NC Not used 9 2 E1 120 Ohm Connector 1 8 9 15 Pin Signal Description 1 Out_Ch1 A E1 Output Ch 1 wire A sym 2 FPE Functional Protective Earth cable s...

Страница 55: ...Carrier Detect B DCD B TO DTE 24 113a Terminal Transmit Clock A TTC A DTE Signal Element Timing A Xa TO DCE 11 113b Terminal Transmit Clock B TTC B DTE Signal Element Timing B Xb TO DCE 15 114a Transm...

Страница 56: ...Signal Ground 6 ALMAJ_NC Major Alarm Contact normally closed 7 ALMAJ_NO Major Alarm Contact normally open 8 ALMIN_NC Minor Alarm Contact normally closed 9 ALMIN_NO Minor Alarm Contact normally open 9...

Страница 57: ...U T Rec G 823 ETSI TS 101 135 Bit Rate 2048 kbit s 50 ppm Connector Type either DB15 male 120 or two BNC 75 ESD Protection 8 kV Air discharge 10 1 3 V 35 DCE User Interface Specification ITU T Rec V 3...

Страница 58: ...300 019 1 1 Class 1 2 35 C 75 C Transportation ETS 300 019 1 2 Class 2 3 40 C 80 C Operation ETS 300 019 1 3 Class 3 2 25 C 75 C Higher Operation Temperaturrange available on request 10 3 2 Safety EMC...

Страница 59: ...S R T C D E H F U W Y AA V X N L NN 1 7 2 14 3 16 4 5 6 20 8 24 11 15 12 17 9 21 18 25 V 35 DCE MRAC 34 male a b DB25 male a b FGND SGND 103 104 105 106 107 108 109 113 114 115 A B P S R T C D E H U W...

Страница 60: ...7 11 29 12 30 13 31 17 35 5 23 8 26 14 10 18 1 7 7 7 2 14 3 16 4 19 5 13 6 22 20 23 8 10 24 11 15 12 17 9 21 18 25 V 36 RS449 DCE DB37 male a b DB25 male a b FGND SGND SGND a SGND b 103 104 105 106 10...

Страница 61: ...7 17 9 3 16 2 14 4 19 5 13 24 11 Note join together pins 22 23 and 6 20 at DB 25 side X 21 DCE DB15 male a b DB25 male a b FGND G S R T C I X 1 8 6 13 4 11 2 9 3 10 5 12 7 14 1 7 24 11 2 14 3 16 5 13...

Страница 62: ...2 3 4 5 6 20 24 15 17 7 21 5 4 6 20 18 25 8 Note join together pins 4 5 at DB 25 female side DTE equipment side V 28 DCE synchronous DB25 male DB25 male SGND 103 104 105 106 107 108 113 114 115 7 2 3...

Страница 63: ...E asynchronous DB9 female DB25 male SGND TXD RXD RTS CTS DSR DTR DCD 5 3 2 7 8 6 4 1 7 21 25 4 5 6 20 8 RS232 DCE asynchronous DB25 male DB25 male SGND TXD RXD RTS CTS DSR DTR 7 2 3 4 5 6 20 7 25 21 5...

Страница 64: ...Error 0 Microcontroller RAM test failure 1 2 12 2 Abbreviations 2B1Q 2 Binary 1 Quaternary ACO Alarm Cut Off AIS Alarm Indication Signal AIS R Alarm Indication Signal Alarm bit in xDSL frame AIS S Al...

Страница 65: ...LOS S Loss of Signal Subscriber side LT Line Termination LTU Line Termination Unit NC Not Connected NEXT Near End Cross Talk NM Noise Margin NT Network Termination NTU Network Termination Unit PDH Ple...

Страница 66: ...trol of Jitter and Wander within Digital Networks Which Are Based on the 2048 kbit s Hierarchy ITU T G 703 Physical Electrical Characteristics of Hierarchical Digital Interfaces ITU T G 704 Synchronou...

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