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T3 E3 Analyzer

Laptop T3 E3 T1 E1 Ethernet Analyzer

Overview | Features & Benefits | Accompanying Basic & Optional Software
Specifications | Application Notes | Buyer's Guide


GL's newest T3 (DS3) E3 Analyzer Pod is one of the smallest and lightest (weighing only 1.75 lbs) analyzer units in the world. The pod when connected to Notebook PC is capable of capturing two full T3 (DS3) / E3 data streams, dropping and inserting T1 or E1, full Ethernet analysis, and HDLC, ATM, FR, and PPP Analysis. GL's T3 E3 Analyzer can also be used in conjunction with GL's Laptop T1 / E1 analyzer for individual T1 (DS1), E1, DS0, and analog analysis

Summary of Features & Benefits

pdf User's Guide
pdf Quick Install Guide
pdf Product Brochure
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  • Overview         
  • Protocol Analyzers         
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  • pdf Product List
    • One of the smallest and lightest T3 (DS3) /E3 analysis platforms with dual data stream capture capability.
    • Multiple interfaces for analysis (T3 (DS3) /E3, T1/E1 and Ethernet) and control (USB and Ethernet) to support a wide array of testing scenarios
    • Plug and play through USB 2.0 control interface.
    • Software selectable T3 (DS3) / E3 interface along with T1 (DS1) and E1 Drop and Insert.
    • Dual T3/E3 Receivers and Transmitters for non-intrusive and intrusive testing of both eastbound and westbound signals at the same time.

    • General T3 (DS3) /E3 signal testing capabilities
      • Alarms Monitoring and Logging
      • Monitor T3 (DS3) /E3 frequency, line level and various errors.
      • Alarm Generation and Error Injection
      • Decode and Simulate Far End Alarm Channel (FEAC) messages.
      • T3 (DS3) /E3 error counters
      • Dual BERT and G.821 Analysis

    • Channelized (Structured) Testing
      • Multiplex / De-multiplex T1 (DS1) /E1 signals (Drop and Insert).
      • Receivers for bidirectional monitoring with Dual T1 (DS1) / E1 drop.
      • Transmit multiplexed externally inserted or internally generated T1/E1 streams into T3 (DS3) /E3.
      • Stress test M13 (E13) multiplexers and 3/1 Digital cross connect systems.
      • Dual channel drop and insert of T1/E1 signals from any one of the T3 (DS3) /E3 signals.
      • Broadcast or loopback individual T1s/E1s within the T3 (DS3) /E3.
      • Generates 28 T1s or (21 E1s) signals within the T3 (DS3) or 16 E1s within E3 output.

    • Unchannelized (Unstructured) Testing

    • Simultaneously record / playback the entire T3 (DS3) /E3 in framed or unframed modes up to hard disk capacity.
    • Flexible clocking - internal, recovered (from T3 (DS3) /E3, T1 (DS1) or E1) and external.
    • Scripting and Automation through GLs well-known Windows Client Server (WCS) approach.
    • Monitor / Manage the Analyzer remotely via Ethernet port (future enhancement).
    • GL's USB T3E3 Analyzer supports scrambling and subrate for the following DSU vendors' algorithms for T3 interface: Digital Link, Larscom, Verilink, and Adtran

    Detailed Feature Description

    Worlds smallest T3 (DS3) /E3 Analysis platform with dual data stream capture capability:

    With the size of a small paperback book and weighing only 1.75 lbs, GL's newest T3 E3 Analyzer pod is one of the smallest and lightest analyzer units in the world. The small footprint makes it ideal for use in the lab as well as in the field. The unit's lightweight makes it easy to carry in the pouch of a Notebook PC making it perfect for air travel. Compatibility with any Desktop or Notebook PC allows the software to be installed on many PCs - just ship the unit to the intended location and use it on an available PC.

    Portable USB T3 E3 Unit

    Multiple interfaces for analysis (T3/E3) and control (USB, Ethernet) makes it ideal for a wide array of testing scenarios:

    • T3 (DS3) or E3 - BNC interface (2 Transmit and 2 Receive ports).
    • T1 or E1 - RJ-48c interface (2 Transmit/Receive Ports).
    • External Clock: MCX (2 Ports one each for the two T3/E3 ports).
    • Ethernet Port For wirespeed Ethernet analysis, remote monitoring, and management.
    • USB 2.0 - The USB interface is used to connect the analyzer unit to a Desktop or a Notebook PC for storage, display, and control.
    Portable USB T3 E3 Front and Back Panel

    Plug and play through the USB 2.0 control interface:

    Its USB 2.0 control interface to PC enables plug and play capability. This will allow you to share the unit among multiple users since it can be moved from PC to PC. The unit is also highly portable due to the small size and light weight.

    Comprehensive T3 E3 testing solution:

    GLs T3/E3 analyzer unit offers a complete solution for T3/E3 (44.736/34.368 Mbps) testing. It is fully compatible with GLs other test systems. It can be used in conjunction with GLs Laptop T1/E1 analyzer for individual T1, E1, DS0, and analog analysis.

    Supported Protocol Standards


    • Analyze HDLC frames over bidirectional T3/E3 with host of protocol analyzer features such as Real-time filter, Capture filter, Statistics, and so on.
    • Captured frames can later be used for traffic simulation using HDLC Transmit/Receive/Playback and Impairment applications

      For more information, please visit HDLC Protocol Analysis over T3 E3

    Frame Relay

    • Analyze Frame Relay protocol over bidirectional T3/E3 with host of protocol analyzer features such as Real-time filter, Capture filter, Statistics, Call Trace, and so on.
    • Analyze Permanent Virtual Connection (PVC) and Switched Virtual Connection (SVC) frames
    • Call Trace view displays called/ calling number, released calls, call status, & more.

      For more information, please visit Frame Relay Protocol Analysis over T3 E3.


    • Support of various UNI Signaling Protocols i.e. UNI 4.0, UNI 3.1 and UNI Q-2931
    • Call trace capability based on UNI signaling parameters, VPI/VCI and others
    • CRC verification for AAL5 carrying packet data

      For more information, please visit ATM Protocol Analysis over T3 E3.


    • Supports a host of protocols PPP, IPCP, BCP, BPDU, PAP, CHAP, HTTP, SNMP, STUN, FTP, DNS, and DHCP
    • Ability to test and perform numerous measurements across WAN- LAN or LAN-LAN connection
    • Supports Packet Data Analysis module (requires additional license) to perform detail analysis of PPP packets over IP and segregates them into SIP / H323 / Megaco / MGCP / T.38 / IuCS / GSM A Fax calls.

      For more information, please visit PPP Protocol Analysis over T3 E3

    Accompanying Basic & Optional Software

    A list of all the basic applications and other optional applications (requiring additional licenses) are listed here.


    T3 (DS3) / E3 BNC ( 2 Tx, 2 Rx)
    T1 (DS1) /E1 RJ-48c (2 Tx, 2 Rx) for Drop/Insert
    External Clock MCX 2 Ports
    PC Interface USB 2.0
    External Power 9 V DC
    Ethernet 1000 Mbps


    T3 (DS3) / E3 Line Interface  
    Output Amplitude 800mV ± 50mV
    Input Impedance 75 Ohms unbalanced (BNC)
    Line Code B3ZS (T3), HDB3 (E3)
    Terminate Input Level 0.09Vp 0.85Vp
    Monitor Input Level 0.025Vp 0.08Vp


    Clock Source  
    Internal ± 1 PPM @25C [± 4.5 ppm (includes ageing, stability)]
    Recovered Clock recovered from receiver
    External TTL Level signal

    High Speed (T3 (DS3) / E3 Rate)

    Low Speed (2KHz, 8KHz, 2MHz, 1.5MHz) Recovered from Inserted T1 or E1


    T3 (DS3) / E3 Transmitter  
    T3 (DS3) / E3 Payloads Framed T3 (DS3) / E3 Data, Unframed T3 (DS3) / E3, Idle, AIS
    T3 Framing Modes Unframed M13 (ANSI T1-107 1995) Structured (Channelized), and Unstructured (Unchannelized) C-bit (ANSI T1-107 1990) - Structured (Channelized), and Unstructured (Unchannelized)
    E3 Framing Modes Unframed, E13 (for E3) - Structured (Channelized), and Unstructured (Unchannelized)
    Framed T3 (DS3) / E3 Unstructured Payload Raw Data from File, ATM Cells (only for T3), HDLC Frames, BERT Patterns
    Unframed E3 Payload Raw Data from File, BERT Patters
    Channel Structure T1, E1 (DS1) (ITU-T G.747)
    BERT Patterns QRSS, 2^6-1, 2^9-1, 2^11-1, 2^15-1, 2^20-1, 2^23-1, User Defined upto 32-bits, other static patterns
    T1 (DS1) Payload Inserted T1, AIS, Loopback, BERT Patterns (future)
    E1 Payload Inserted E1, AIS, Loopback, BERT Patterns (future)
    Loopbacks Complete T3 (DS3) / E3 Signal, Selected T1s/E1s from incoming T3 (DS3) / E3


    T3 (DS3) / E3 Receiver  
    T3 (DS3) Framing Format M13 (ANSI T1-107 1995), C-bit (ANSI T1-107 1990), Unframed, Structured (Channelized), and Unstructured (Unchannelized)
    E3 Framing Format E13, Unframed, Structured (Channelized), and Unstructured (Unchannelized)
    Channel Structure T1 (DS1) /E1 (ITU-T G.747)
    Framed T3 (DS3) / E3 Unstructured Payload Raw Data Captured to File, ATM Analysis (only for T3), HDLC Frames Analysis, BERT Patterns Measurement
    Framed T3 (DS3) / E3 Structured Payload Raw Data Captured to File, BERT Patterns Measurement, Drop Selected T1(s) / E1(s)


    T3 (DS3) / E3 Line Rate Offset ± 50 PPM in 1 ppm Steps
    Level Measurement Supported
    Frequency Measurement ± 1 PPM
    T3 (DS3) Error Add Payload Bit, Frame Errors, P-bit, C-bit, EXZ (for T3);
    E3 Error Add Frame Errors, Code Violation (CV) Error, EXZ, Payload Bit
    T3 (DS3) Alarm Generation LOS, AIS, RAI (X-bit), Idle, FEAC Codes (Loopback and alarm/status codes)
    T3 (DS3) Alarm Monitoring LOS, LOF, AIS, Idle, RAI (X-bit), EXZ
    E3 Alarm Generation LOS, OOF, RAI (X-bit);
    E3 Alarm Monitoring LOS, LOF, AIS, RAI (X-bit), EXZ
    T3 (DS3) FEAC Codes Alarm status codes, loopback codes with channel indicator for T1
    LED Indicators LOS, LOF, ERR, PGM
    Operating temperature 0° C to 40 ° C
    Storage temperature 10° C to 70 ° C
    Relative humidity 10 % min, 90 % max, non-condensing


    Dimensions 1.6" high, 9.25" deep, 5.5" wide
    Weight 1.75 lbs
    Power Supply Input 9 V DC at 1 A

    * Specifications subject to change without notice.

    Application Notes

    Buyer's Guide

    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
    TT3136 / EE3136 PDA for PPP Analyzer
    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
    HTE001 Universal T1 or E1 card
    UTE001 Portable USB based Dual T1 or E1 Laptop Analyzer
    PTE001 tProbe™ T1 E1 Base Unit
    QuadXpress T1E1 Main Board (Quad Port– requires additional licenses)
    OctalXpress T1E1 Main Board plus Daughter Board (Octal Port– requires additional licenses)

    *Specifications are subjected to change

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