TDM TEST SOLUTIONS

T3 E3 Testing

T3 E3 Basic & Optional Applications

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General T3/E3 signal testing capabilities

  • Monitor T3/E3 Lines

    Monitor T3/E3 line application the T3 (DS3) /E3 line conditions for two T3/E3 ports. We can monitor LOS, LOF, AIS, IDLE, RAI/X-BIT, and Excessive 0's in case of T3. Others values such as T3 line frequency, power level, FEAC Messages, Frame errors, P-Bit Parity, C-Bit Parity, FEBE, and BPV also can be monitored. In case of E3 signal, LOS, AIS, RAI/X-BIT, and Excessive 0's status can be monitored. Others values such as E3 line frequency, power level, FEAC Messages, Frame errors, CV, and Excessive 0's also can be monitored.

    Alarm and Error windows for the T3 (DS3) and E3 Analyzers

    Alarm and Error windows for the T3 (DS3) and E3 Analyzers

  • Alarm Generation and Error Injection


    This application internally generates various types of errors and / or alarms and transmits them on the outgoing T3 (DS3)/E3 stream. The application can automatically insert errors at regular intervals of time (secs) or insert single bit errors.

    Logical diagram of alarm generation application

    Logical diagram of alarm generation application

  • Tx Rx Memory Loopback


    This application is used for diagnostic purposes. It loops all the received data from the memory back to the transmitting port. Memory Loopback application can be run on one port, along with Bit Error Rate Test on the other port to verify the operation of this analyzer unit.

    User interface for the Transmit-to-Receive Memory Loopback application

    User interface for the Transmit-to-Receive Memory Loopback application

  • Monitor Received Data


    This application has the ability to monitor raw bit values on the selected ports. Underruns, MissedXfer, Skipped Bytes, and Skipped Blocks in Performance and Results pane provides the receive data pipe performance.

    Logical diagram for the Monitor Received Data application

    Logical diagram for the Monitor Received Data application

  • Loopback Modes, Clock, Framing Formats, Structured/Unstructured Modes


    Loopback capability between the local T3(DS3) /E3 interface and the remote CSU are used to diagnose problems with the T3 (DS3) /E3 analyzer or with the CSU when it is isolated from the network.

    The clock source option is used to select the timing reference for the outgoing T3 (DS3) /E3 signal.

    The board can be configured to terminate or monitor the T3 (DS3) /E3 input signal depending on the user requirements.

    User interface for Interface Configuration

    User interface for Interface Configuration

  • Transmit and Receive Configurations


    Various options are provided to configure the Tx/Rx parameters for the T3 (DS3)/E3 signal.

    User interface for the Transmit and Receive configuration settings

    User interface for the Transmit and Receive configuration settings

  • DSU Scrambling and Subrate


    GL's USB T3E3 Analyzer supports scrambling and subrate for the following DSU vendors' algorithms for T3 interface: Digital Link, Larscom, Verilink, and Adtran. Scrambling was implemented to address various 0s-density when used in WAN interface. Data Service Unit (DSU) Subrate provides the ability to configure the DS3 network for a lower bandwidth service.

    For more details, please visit T3 (DS3) Subrate and Scrambling website

  • Multiplex and De-multiplex T1 or E1 signals


    Up to two user selected T1 (or E1) channels can be externally inserted using the T1/E1 input/output interface into any one of the transmitted T3 (DS3) or E3 signal. The inserted T1 or E1 signal can be selectively transmitted through one or more of the T1/E1 transmit channels or broadcasted through all the T1/E1 channels. Additionally, the received T1/E1 signal can be looped back and transmitted or the transmitted T1/E1 signals can be set to carry AIS as shown in the picture below. Similarly up to two user selected T1/E1 channels can be dropped.

    User interface for the Structured Mode (Drop / Insert) Settings

    User interface for the Structured Mode (Drop / Insert) Settings

Other Applications

  • Bit Error Rate Test - BERT (Full Frame and Unframed)


    GL's T3 (DS3) / E3 Bit Error Rate Tester application measures the correctness of data received on T3 (DS3) /E3 channels for a repetitive fixed or pseudorandom pattern for the given transmission. The digital data in various fields such as digital circuits, mobile communications, antennas, digital broadcasting need to be monitored for error-free transmission. Bit Error Rate provides a figurative measurement of the number of erroneous bits received for the total number of bits transmitted.

  • Playback (Transmit from File) / Record (Capture to File) applications


    This software permits the user to transmit and / or capture all the data on T3 (DS3) /E3 lines using GL's T3 (DS3) /E3 analyzer. Typical applications include transmission or capture of prerecorded video files, traffic loading applications, surveillance applications, and protocol analysis. The analyzer can capture (record) two complete T3 (DS3) /E3 streams to the hard drive as a binary file. It can also transmit (playback) already captured binary file through the T3 (DS3) /E3 stream.

    Logical diagram of capture (record) application

    Logical diagram of capture (record) application

    Files of any length can be transmitted and captured continuously (without loss) over T3 (DS3) /E3 line. Repeated (continuous) transmission of a single file is also possible.

    Logical diagram of transmit from file (playback) application

    Logical diagram of transmit from file (playback) application

  • Protocol Testing and Analysis - HDLC, Frame Relay, ATM, and PPP


    GL's T3 (DS3) /E3 analyzer supports protocol decoding and analysis of ATM, Frame Relay, MLPPP, and HDLC. All the protocol analyzers are based on similar architecture and support sophisticated filtering, statistics and real-time capture options.

  • Scripting and Automation


    Windows Client/Server software empowers the T3 (DS3) /E3 analyzer users with the capability of remote operation, automation, and multi-site connectivity. T3 (DS3) /E3 Cards in server mode can be easily controlled through software clients at remote or local sites. With the GL's well-known Client-Server (WCS) approach it is possible to individually control one or more T3 (DS3) /E3 analyzers

  • HDL File Conversion Utility


    This application converts a file from Ethereal format files (.PCAP, .CAP, and .PCAPNG) to GL proprietary file format (.HDL) and vice-versa. The application can automatically detect the format of the source PCAP file whether it is captured on Linux or Windows® and converts accordingly to HDL file. By converting the file to *.HDL format, the users can use the converted *.HDL files in T1 E1, T3 E3, LightSpeed1000™, or PacketScan™ applications to decode and analyze.



Resources

Item No. Item Description
TE3001 Portable (USB) Dual T3 E3 / T1 E1 Hardware Unit - requires TT3001 or EE3001
  Related Software
TT3001 T3 / T1 / E1 Analyzer Basic Software
EE3001 E3 / E1 Analyzer Basic Software
TT3020/ EE3020 T3/ E3 Record Playback Software (GUI)
File Record Send over T3/E3
TT3090 / EE3090 T3 / E3 HDLC Tx/Rx Test + Analyzer (GUI)
Send Receive Analyze HDLC over T3/E3
TT3135 / EE3135 T3 / E3 PPP Analyzer (GUI)
Analysis and decode of PPP over T3/E3
TT3130 / EE3130 T3 / E3 Frame Relay Analyzer (GUI)
Analysis and decode of Frame Relay over T3/E3
TT3160 T3 ATM Analyzer (GUI)
Analysis and decode of ATM cells over T3
TT3600 / EE3600 T3 / E3 Basic Client Server Scripted Control Software
Precise & Sequential Control of T3/E3 Analyzer via Client Server - Uses TCP/IP
TT3610 / EE3610 T3 / E3 Client Server Tx/Rx File
Tx / Rx Files on Unframed Unchannelized T3/E3
TT3634 / EE3634 T3 / E3 Client Server High Throughput HDLC Tx/Rx Test
HDLC Simulation with Impairments
TT3635 / EE3635 T3 / E3 Client Server High Throughput PPP Tx/Rx Test
PPP Emulation, requires TT3634/EE3634
  Related Hardware
UT301 / UT302 T3 Analysis PCI Card w/ Basic Software and Client / Server and Command Line Utility
SA000d High Stability Internal Clock Option
± 1 ppm Internal Clock
XTE001
Dual T1 E1 Express (PCIe) Boards (requires additional licenses)
FTE001 QuadXpress T1E1 Main Board (Quad Port– requires additional licenses)
PTE001 tProbe™ T1 E1 Base Unit

*Specifications are subjected to change

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