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T3 E3 Analyzer

 USB T3/E3 Analyzer Software Ver 6.2.2 | Now Available

Background

A T3 line is an ultra-high-speed signal capable of transmitting data at rates up to 44.736 Mbps. An E3 signal is situated at the third level within the Plesiochronous Digital Hierarchy (PDH) and has a bit rate of 34.368 Mbps.
T3 or E3 has two flavours channelized (structured) and  unchannelized (unstructured).

  • In Channelized (Structured), a T3 (DS3) consists of 7 T2s (DS2) and each T2 consists of 4 T1s (DS1), thus a total of 28 T1s, or 672 full duplex voice channels are provided. Similarly, an E3 consists of 4 E2s and each E2 consists of 4 E1s, thus a total of 16 E1s, or 480 full duplex voice channels are provided. Thus, a channelized T3 signal carries 28 T1 signals, each operating at a rate of 1.544 Mbps. A channelized E3 signal carries 16 E1 signals each operating at a rate of 2.048 Mbps.

  • In Unchannelized (Unstructured), T2s or T1s or E2s or E1s DO NOT exist within T3 or E3. Instead, most of the capacity within 44.736 Mbps for T3 and 34.368 Mbps for E3 is used for data, with a small amount for overhead. With the advent of the internet, T3 (DS3) and E3 can be used to transport not only data, but also packetized voice, and packetized video. Example protocols include Asynchronous Transfer Mode (ATM), PPP, HDLC, and Frame Relay.

Overview

GL’s T3 E3 Analyzer is available as portable as well as a rackmount system. A portable USB-based unit supports 2x T3 E3 ports per unit. A 2U Rack supports 6x T3 E3 ports (6 * 672 DS0s) per unit. Multiple rack units can be stacked together for greater scalability.

Portable USB T3 E3 Unit

Portable USB T3 E3 Analyzer


Rackmount T3 E3 Analyzer

The T3 E3 Analysis software compliments the hardware and supports simultaneously monitoring up to 12 x T3 E3 lines (2x Rack units or 6x Portable units) for all alarms, frame errors, signalling and data. If one adds the Channelized T1 Analyzer software to the system, then the T1s within the T3s can also be analysed in software, 12 x T3 E3 lines (=12*28 T1s) constituting 336 full duplex T1s, or 672 simplex T1s monitored simultaneously using a single Rack unit. With additional applications, such as record-only, one can also record traffic at DS0 levels.

GL’s T3 E3 Analyzer is capable of processing signalling, voice, and data full T3 (DS3) or E3 data streams, dropping and inserting T1 (DS1) or E1, and analysis of HDLC, ATM, Frame Relay, and PPP Protocols. It includes various signal testing capabilities for Unchannelized (Unstructured) and Channelized (Structured) T3 E3 Traffic.

The channelized option in the T3 E3 Analyzer uses “software-only” approach to support direct access to all 2x28 T1s or 2x21 E1s or 2x16 E1s on a T3/E3 line per board for analysis and monitoring– all within a single PC, including differing T1/E1 framing formats, physical layer alarms, and payloads.

GL's T3 E3 Analyzer also includes scrambling and subrate features. Subrate allows fractional bandwidth, i.e. less than the full 44.736 Mbps. Scrambling improves synchronization performance by randomizing repetitive patterns and long strings of zeros.

  • Analysis/Emulation of T3 (44.736 Mbps) and E3 (34.368 Mbps)
  • Analysis/Emulation of ATM, PPP, HDLC, and Frame Relay signalling
  • Record / Playback of entire T3 or E3
  • Monitoring & generating alarms, and error insertion
  • Analysis of all 28 T1s (1.544 Mbps each) per T3 port, or 16 E1s (2.048 Mbps each) per E3 port in Channelized mode
  • Analysis of Fractional T1s and E1s, N x T1s or N x E1s
  • Analysis of any combination of DS0s (64 kbps each) within the T1s or E1s ( for example, each T3 port has 28 x 24 = 670 DS0s for T1 or 21 x 32 = 672 DS0s for E1)

Features

  • 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) and E3 interface along with T1 and E1 Drop and Insert
  • Dual T3 (DS3) /E3 Receivers and Transmitters for non-intrusive and intrusive testing of both eastbound and westbound signals at the same time
  • Channelized (Structured) Testing

With Drop and Insert Functionality –

    • Uses the Dual T1 E1 ports on the hardware
    • 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 received from T3 (DS3) /E3

With T1 E1 Rx Server Software –

    • T3/E3 Data is received by the T1 E1 Receive Server, which demultiplexes the data to T1 or E1 Channels.
    • Receive 28 T1 Channels per port from T3 signal
    • Receive 21 E1 Channels per port (G.747 Mapping) per port from T3 signal
    • Receive 16 E1 Channels per port from E3 signal
    • Supports monitoring of framed and unframed T1/E1 (Rx Only)
    • Simultaneous analysis of all 56 T1s (1.544 Mbps each), or 32 E1s (2.048 Mbps each)
    • Analysis of Fractional T1s and E1s, N x T1s or N x E1s,
    • Analysis of any combination of DS0s (64 kbps each) within the T1s or E1s, 56 x 24 = 1,344 DS0s for T1 or 32 x 32 = 1024 DS0s
    • Supports Protocol Analysis of all structured protocols – HDLC, ISDN, CAS, and many more
    • Monitoring of T1 E1 Alarms, Payload, an d Framing structure
  • Unchannelized (Unstructured) Testing
  • Flexible clocking - internal, recovered (from T3/E3, T1 or E1) and external.
  • Scripting and Automation through GL’s well-known Windows Client Server (WCS) approach.
  • Includes HDL File Conversation utility to convert ethereal format file (*.PCAP, *.CAP, and *.PCAPNG) to GL’s file format (*.HDL) and vice-versa.
  • Monitor / Manage the Analyzer remotely via Ethernet port (future enhancement).

Rack T3/E3 Specifications


Rackmount T3/E3 Analyzer


Rackmount T3/E3 Front Panel

Portable USB T3 E3 Front and Back Panel

Rackmount T3/E3 Rear Panel

 

Connectors for Rack T3/E3

 

T3 (DS3) / E3

Up to 6 Pairs of DS3/E3 75O BNC (Tx, Rx) Ports

T1 (DS1) /E1

Up to 6 Pairs of DS1/E1 RJ-48-c (Tx, Rx) for Drop/Insert

External Clock

6x MCX External Clock Ports

PC Interface

3x USB 2.0 Connected to a USB HUB

External Power

Internally powered by Power Supply

Ethernet

3 x 1000 Mbps Ethernet Port

 

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)

Unchannelized T3 supports subrate and scrambling formats for Digital Link, ADC/Kentrox, Larscom, Adtran, and Verilink data service units (DSUs)

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)

 

T1 E1 Transmit / Receiver:  

 

Bit error rate testing (BERT) pattern generation and detection per channel

 

Transmit Tone, Transmit Gaussian Noise, Transmit Multiframe

 

Transmit Signalling Bits, and Rx-to-Tx loopback

Compliance

G.703 Physical/Electrical Characteristics
GR-499-CORE Physical/Electrical Characteristics
G.821 Bert Analysis
G.742 Multiplexing
G.751 Multiplexing

 

Supported Protocols  

Channelized Protocols

High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP), RFC 1662, Multilink PPP (MLPPP), RFC 1990
Frame Relay, RFC 1490
Multilink support over Frame Relay (FRF.12) and MLPPP
ATM IMA
GSM, TRAU, GPRS, UMTS over ATM
SS7, ISDN, CAS, SS1, SSM
V5.x, DCME, FDL (T1 Interface only)

UnChannelized Protocols (Unstructured)

PPP, ATM, Frame Relay

 

Miscellaneous  

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

 

Mechanical  

Dimensions

18.920 (width), 16.075 inch (depth), 3.390 inch (height)

Weight

est. 20 lbs

Power Supply

100-240V, 5A, 50/60Hz

Operating temperature

0° C to 40 ° C

Storage temperature

10° C to 70 ° C

Relative humidity

10 % min, 90 % max, non-condensing

 

Functional Specifications 
DS3/E3 multiplexing from T1/E1
DS3/E3 Playback and Capture
DS3/E3 Protocol Analysis
DS3/E3 Bert Analysis
Sending DS3/DS1 SNMP Traps to Network Operation Center (NOC)

 

T3/E3 Signal
Up to 168 T1 per unit (or 3*2* 28)
Up to 126 E1 per port (or 3*2* 21)
For E3 Signal - Up to 96 E1 (or 3*2* 16)

* Specifications subject to change without notice.

 

Portable USB T3/E3 Specifications

World’s 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

Portable USB T3 E3 Front and Back Panel

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.

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

Connectors  

T3 (DS3) / E3

2x DS3/E3 75Ω BNC (Tx, Rx) Ports

T1 (DS1) /E1

2x DS1/E1 RJ-48c (Tx, Rx) for Drop/Insert

External Clock

2x MCX External Clock Ports

PC Interface

1x USB 2.0 for PC Interface

External Power

9 V DC

Ethernet

1x 1000 Mbps Ethernet Port

 

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)

Unchannelized T3 supports subrate and scrambling formats for Digital Link, ADC/Kentrox, Larscom, Adtran, and Verilink data service units (DSUs)

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)

 

T1 E1 Transmit / Receiver:  

 

Bit error rate testing (BERT) pattern generation and detection per channel

 

Transmit Tone, Transmit Gaussian Noise, Transmit Multiframe

 

Transmit Signalling Bits, and Rx-to-Tx loopback

Compliance

G.703 Physical/Electrical Characteristics
GR-499-CORE Physical/Electrical Characteristics
G.821 Bert Analysis
G.742 Multiplexing
G.751 Multiplexing

 

Supported Protocols  

Channelized Protocols

High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP), RFC 1662, Multilink PPP (MLPPP), RFC 1990
Frame Relay, RFC 1490
Multilink support over Frame Relay (FRF.12) and MLPPP
ATM IMA
GSM, TRAU, GPRS, UMTS over ATM
SS7, ISDN, CAS, SS1, SSM
V5.x, DCME, FDL (T1 Interface only)

UnChannelized Protocols (Unstructured)

PPP, ATM, Frame Relay

 

Miscellaneous  

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

 

Mechanical  

Dimensions

1.6" high, 9.25" deep, 5.5" wide

Weight

1.75 lbs

Power Supply

Input 9 V DC at 1 A

Operating temperature

0° C to 40 ° C

Storage temperature

10° C to 70 ° C

Relative humidity

10 % min, 90 % max, non-condensing

 

Functional Specifications 
DS3/E3 multiplexing from T1/E1
DS3/E3 Playback and Capture
DS3/E3 Protocol Analysis
DS3/E3 Bert Analysis
Sending DS3/DS1 SNMP Traps to Network Operation Center (NOC)

 

T3/E3 Signal
Up to 56 T1 per unit (or 2* 28)
Up to 42 E1 per port (or 2* 21)
For E3 Signal - Up to 32 E1 (or 2* 16)

* Specifications subject to change without notice.

 

Physical Layer Analysis

Physical Layer Analysis is used to monitor T3/E3 and T1E1 line alarms. The analyzer helps to track the time at which alarms (Sync Loss, Carrier Loss, Remote, Distance MF, AIS) occurrs and periodically send these information to either centralized database such as Oracle DB, or send traps to SNMP monitoring applications.

GL’s NetSurveryorWeb™ accesses fetches the records from the central database and facilitates the user to monitor physical layer status of T1/E1 line via simple web based clients. For more details, refer to Network Line Monitor and Test

Main Features

  • Captures LOS, LOF, AIS, IDLE, RAI/X-BIT, Excessive 0’s alarms at T3/E3 level.
  • Captures Sync Loss, Carrier Loss, AIS, Blue, Yellow, Distance MF, Frame Error alarms at T1/E1 level.
  • SNMP traps can be sent to SNMP notification receiving applications, like OpenView according to DS1-MIB (RFC 4805) and DS3-MIB (RFC 3896).
  • Alarms can be captured for a specified time interval.
  • Advanced filtering and search based on any user selected alarms.
  • Displays Summary, Detail, Hex-Dump, and Statistics views.
  • Exports Summary and Detail View information’s to an ASCII file.
  • Provides options to save captured alarms into an HDL file and these files can be imported offline for further analysis.
  • Channelized T3/E3 application can monitor Physical Layer Alarms up to 336 ports.
  • USB T3/E3 application can monitor Physical Layer Alarms up to 12 ports.

Supported T1 E1 Alarms

Line Sync Loss: This alarm indication will flash when a receiver resync is in progress. If the receiver is set to auto resync in the Configuration Menu, the receiver will begin resync when an OOF (Out Of Frame) event or Loss of Carrier is detected.

Carrier Loss: Carrier loss alarm is declared when 128 ± 1 consecutive zero's are detected. Carrier loss clears when a ‘1’ is received.

Remote Alarm Detected (E1 Only): This alarm indication will flash when a remote alarm is detected. A remote alarm is defined as the reception of three consecutive bits equal to ‘1’ of timeslot 0 of non-align frames.

Distant Multiframe (MF) (E1 Only): This alarm indication will flash when a distant multiframe alarm is detected. A distant multiframe alarm is defined as the reception of three consecutive 1s at bit position of timeslot 16 in frame 0. This indication is only valid when in CAS mode.

Alarm Indication Signal (AIS): The receiver detects an AIS pattern when it receives less than three zeroes in any string of 2048 bits.  The AIS condition is cleared when three or more zeros are detected in 2048 bits.

Supported T3 E3 Alarms

Loss of Signal (“LOS”) : This is the most basic of all alarms.  No signal is present.  Usually this means that the cable is broken or disconnected, or that the remote device is out of service.  No other alarms are meaningful when LOS is present.  In the T1/E1 Analyzer, this alarm is referred to as “Carrier Loss”.
In the software Rx Framers, an all-0 signal is interpreted as Loss of Signal.

Loss of Frame Alignment (“LOFA”) : LOFA is also known as “Out-of-Frame” (“OOF”) or “Sync Loss”, a signal is present but the Rx Framer is unable to synchronize with the incoming multiframes.  This usually means that either the framing strategies are incompatible (E1/T1 mismatch, DE4/ESF mismatch, etc.), or the signal is so poor that frame sync cannot be reliably established.  It may also mean that the receiving equipment is expecting CRC but the sending equipment is not transmitting CRC.  In the T1/E1 Analyzer, this alarm is referred to as “Sync Loss”.

Alarm Indication Signal (“AIS”) : In the T1 world, this is referred to as “Blue Alarm”.  In the E1 world, it is referred to as “AIS”.  The AIS/Blue Alarm signal is an unframed all-1s bit pattern.  Note that a framer receiving a blue alarm will lose frame sync, and will raise a red alarm if the condition persists for more than 2.5 seconds, since the basic frame synchronization signal contains zeros.

Idle : This alarm becomes active upon reception of the T3 Idle signal. Idle alarm indicates that the line has not been provisioned for service and stays without triggering network alarms.

Remote Alarm Indication (“RAI”) : In the T1 world, this is referred to as “Yellow Alarm”. In the E1 world, it is known as “Remote Alarm Indication” or “RAI”.  A device in red alarm at its receiver must transmit yellow alarm/RAI back to the sending device, alerting it that the receiving device cannot synchronize with the signal being sent.  We got this one right on our T1/E1 Analyzer alarm dialogs.

Excessive 0’s : An EXZ occurrence is defined as three or more consecutive zeros in the T3 mode and four or more consecutive zeros in the E3 mode.


Detail View of T1 E1 Alarms



Detail View of T3 E3 Alarms

The summary view displays which alarm has occurred along with the particular timestamp and error counts. It also indicates the Frequency and Level for the counters.

Error Counters

Frequency: This shows the T1/E1 line frequency in Hertz (Hz)
Level: This shows the T1/E1 line power in dBm


Detail View of T1 E1 Counters



Detail View of T3 E3 Counters

Sending SNMP Traps from Physical Layer Analyzer

Physical Layer Analyzer can send SNMP traps to one or more SNMP notification receivers.

Physical Layer Analyzers continuously captures alarms on T3/E3 and T1/E1 ports. Physical Layer Analyzer sends SNMP traps when alarm status changes to SNMP monitoring applications specified by an IP Address and a UDP port.

SNMP traps data are monitored at NOC using any SNMP Monitoring Application as shown below.


DS3 SNMPv2 Traps


DS1 SNMPv2 Traps


Unchannelized-T3E3

Accompanying Basic & Optional Software

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

Supported Protocol Standards for Unchannelized T3E3 Analyzer

HDLC

  • 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.

ATM

  • 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.

PPP

  • 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

DSU Subrate Configuration

Subrate allows DSU manufacturers to control bandwidth from service provider end and sell user specific bandwidth. USB T3 E3 Analyzer supports DSU DS3 Subrate configuration for Digital Link, Larscom, Verilink, and Adtran as shown in the figure.

For more details refer to http://www.gl.com/t3-subrate-scrambling.html

Channelized-T3E3




Features

  • Provides support for channelized T3 E3 to T1 E1
  • Supports up to 56 T1s and 32 E1s channels per T3/E3 port
  • Analysis of all 56 T1s (1.544 Mbps each), or 32 E1s (2.048 Mbps each)
  • Analysis of Fractional T1s and E1s, N x T1s or N x E1s
  • Analysis of any combination of DS0s (64 kbps each) within the T1s or E1s,
    56 x 24 = 1,344 DS0s for T1 or 32 x 32 = 1024 DS0s
  • Supports structured and unstructured T1/E1 transmission and reception
  • Supports all of the monitoring applications under "basic applications" and "special applications" for T1 or E1 channels
  • Supports Protocol Analysis of all structured protocols – HDLC, ISDN, CAS, and more
  • Supports monitoring of T1/E1 alarms in channelized T3/E3 lines
  • Comprehensive analysis of voice, data, fax, protocol, analog, and digital signals, including echo and voice quality testing
  • Extracting T1s/E1s from multiple T3/E3 ports is supported.
  • User selectable T1 and E1 channels to multiplex. The channel numbering is same as in De-multiplexing
  • Unused channels will be treated as unequipped.
  • Broadcasts the selected T1/E1 channel data on all the 32 E1’s or 56 T1’s

Working Principle

The T3/E3 hardware platform with associated T1/E1 Receive Server and Channelized T3/E3 analyzer software can capture, record, and monitor multiple T1 or E1 channels over Channelized T3/E3 links. It can perform analysis of various signal types including voice, digits, tones, fax, modem, and raw data.

The Channelized T3 E3 to T1 E1 solution, comprises of two modules, namely, the High-Speed T3/E3, and Low-Speed T1/E1 modules. These two modules are actually two separate processes running on the same computer. The High-Speed T3/E3 process is called as T1/E1 Receive Server, as the name suggests it runs as a service and works with USB T3/E3 hardware. The Low-Speed T1/E1 module part is referred to as Channelized T3 E3 analyzer software.

The T1/E1 Receive Server application within USB T3/E3 analyzer acts as software based Multiplexer- Demultiplexer application capable of channelization of a T3 signal into 56 independent T1 channels and an E3 signal into 32 E1 channels. The channelized streams containing T1/E1 frames are forwarded to T3/E3 Channelized T1E1 analyzer software over UDP using GL Message Protocol for analysing frames per channel.

ISDN Analysis over T3E3 Signals (56 T1s)



Accompanying Basic Software / Features

Almost all the basic and optional monitoring applications supported by T1 E1 analyzers are also supported by Channelized T3 E3 T1E1 analyzer. For example, capturing an entire T1/E1 signal, or performing ISDN, or SS7 analysis, can be performed using the software accompanying the Channelized T3 E3 T1E1 analyzer.

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

Buyer's Guide

Item No. Item Description

TE3001

Portable (USB) Dual T3 E3 / T1 E1 Hardware Unit – requires TT3001 or EE3001

TE3005

Rack Enclosure for T3/E3 System – up to 6 T3/E3s

  UnChannelized T3 E3 Testing

EE3001

E3 / E1 Analyzer Basic Software

TT3001

T3 / T1 / 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

  Channelized T3 E3 T1 E1 Testing

EE3001

E3 / E1 Analyzer Basic Software

TT3001

T3 / T1 / E1 Analyzer Basic Software

TT3200

Optional Channelized T3 license for T1

TT3210

Optional Channelized T3 License for E1

EE3200

Optional Channelized E3 license for E1

TTTxxx

Channelized Options for T1

  Related Hardware

SA004A

T3 E3 Accessory Kit
(Four SA007o BNC-to-BNC Cables (75 Ohm), Two SA017B RJ48C to RJ48C Crossover Cables, and Two T-taps with Attenuator )

UT301 / UT302

T3 Analysis PCI Card w/ Basic Software and Client / Server and Command Line Utility
(Legacy)

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

FTE001 
ETE001

QuadXpress T1E1 Main Board (Quad Port– requires additional licenses)
OctalXpress T1E1 Main Board plus Daughter Board (Octal Port– requires additional licenses)

 

 
 
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