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Wavetek Wandel Goltermann ANT-20 Manual

Advanced network tester. pdh mux/demux bn 3035/90.30 to 90.31 drop & insert bn 3035/90.20 in combination with pdh mux/demux software version 7.20
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ANT-20, ANT-20E
Advanced Network Tester
PDH MUX/DEMUX
BN 3035/90.30 to 90.31
Drop & Insert
4
BN 3035/90.20
in combination with
PDH MUX/DEMUX
Software Version 7.20
Operating Manual

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Summary of Contents for Wavetek Wandel Goltermann ANT-20

  • Page 1 ANT-20, ANT-20E Advanced Network Tester PDH MUX/DEMUX BN 3035/90.30 to 90.31 Drop & Insert BN 3035/90.20 in combination with PDH MUX/DEMUX Software Version 7.20 Operating Manual...
  • Page 2 Please direct all enquiries to your local Wavetek Wandel Goltermann sales company. The addresses are given at the end of this handbook. Copyrights This product or parts of it are based upon Recommendations and/or Standards of the Standardization Sector of the International...

  • Page 3: Table Of Contents

    ANT-20/ANT-20E PDH MUX/DEMUX Contents Introduction Multiplex and demultiplex functions ......I-1 Testing switch and sensor functions ......I-2 In-service monitoring of tributary channels .
  • Page 4 PDH MUX/DEMUX ANT-20/ANT-20E Drop&Insert / Through Mode / Block&Replace ....S-6 Functions ........S-6 3.1.1...

  • Page 5: Introduction

    Options BN 3035/90.30 to BN 3035/90.32 Multiplex and demultiplex functions The ANT-20 can generate and analyze PDH frames with complete channel structures at rates of 2, 8, 34 and 140 Mbit/s when fitted with the PDH Multiplexer/Demultiplexer Chain option. This...

  • Page 6: Testing Switch And Sensor Functions

    Complex, interleaved signal paths occur, particularly in modern SDH network nodes (cross- connects). The linking of the PDH multiplex chain to the SDH mapping functions in the ANT-20 makes the instrument ideal for testing complex switching functions. Since the ANT-20 can generate and evaluate structured signals right down to the 64 kbit/s level, it can test switching functions on all hierarchy levels from 140 Mbit/s to 64 kbit/s.

  • Page 7: Specifications

    ANT-20/ANT-20E PDH MUX/DEMUX Specifications Options BN 3035/90.30 to BN 3035/90.32 Generator section Frame generator, 64k/140M PDH MUX/DEMUX Chain (option BN 3035/90.30) The following frames are available: Bit ratekbit/s Frame conforming to: Notes 2048 ITU-T G.704 PCM 30, PCM 30 CRC, PCM 31 and...

  • Page 8: Crc Checksum (Pcm 30 Crc / Pcm 31 Crc

    1.2.2 CRC checksum (PCM 30 CRC / PCM 31 CRC) The ANT-20 calculates the CRC checksum for the measured channel and the filler channels as per ITU-T recommendation G.704 and inserts the result bits at the appropriate position in the pulse frame.

  • Page 9: Error Insertion (Anomalies

    ANT-20/ANT-20E PDH MUX/DEMUX Error insertion (anomalies) In addition to the error types described in the “Specifications” for the mainframe instrument, the following anomalies can be inserted: Error type, anomaly Single Rate CRC-4 2E-3 to 1E-8 E bit 2E-3 to 1E-8...

  • Page 10: Receiver Section

    PDH MUX/DEMUX ANT-20/ANT-20E Receiver section Frame systems Frames which can be evaluated by the 64k/140M PDH MUX/DEMUX chain and 64k/140M PDH DEMUX chain (options BN 3035/90.30 and 3035/90.31) Bit rate kbit/s Frame conforming to Notes 2048 ITU-T G.704 PCM 30, PCM 31 systems 2048 ITU-T G.704/G.706...

  • Page 11: Offset Measurements

    ANT-20/ANT-20E PDH MUX/DEMUX Offset measurements All offsets in the hierarchy stages in the measurement path are measured simultaneously and displayed. Display in ppm Error measurements (anomalies) The error measurements are described in the “Specifications” for the mainframe instrument. The frame alignment signals in all hierarchy stages of the selected path are checked simultaneously.

  • Page 12: Drop&Insert / Through Mode / Block&Replace

    Drop&Insert / Through Mode / Block&Replace Option: BN 3035/90.20 Functions This Option provides the following functions for all PDH multiplex options fitted to the ANT-20. Drop&Insert Generator and receiver operate independently as mapper and demapper. The signal from a selected channel is dropped from the receive signal and output to a connector. An external signal is inserted into the transmit signal.

  • Page 13: Clock Generator

    ANT-20/ANT-20E PDH MUX/DEMUX The looped-through signal can also be jittered using the Jitter Generator options (Jitter Generator up to 155 or 622 Mbit/s, BN 3035/90.60 to 61). This function is available for all bit rates fitted to the instrument. Fig. S-3 Through Mode: Adding jitter to the looped-through signal Block&Replace...

  • Page 14: Measurements

    PDH MUX/DEMUX ANT-20/ANT-20E 3.1.4 Measurements There are no restrictions on measurements (see Sec. 2, Page S-4). Signal outputs 3.2.1 AUXILIARY signal output [11], electrical Connector ..........unbalanced, (coaxial) Socket type .

  • Page 15: Signal Inputs

    ANT-20/ANT-20E PDH MUX/DEMUX Interface Bit rate (Mbit/s) Line code Output voltage ± 2.048 HDB3 3.0 V 1.544 B8ZS DSX-1 compatible The bit rates depend on the mapping options fitted. Table S-6 Specifications of the LINE/AUXILIARY signal output [13], electrical The balanced output is used as a LINE or as an AUXILIARY output.

  • Page 16: Line/Auxiliary Signal Input [12], Electrical

    PDH MUX/DEMUX ANT-20/ANT-20E 3.3.2 LINE/AUXILIARY signal input [12], electrical Connector ............balanced Socket type .

This manual is also suitable for:

Ant-20e

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