GL's PCI Based Universal T1 E1 Cards

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GL Communications Inc. in a press statement,conveyed today the availability of its versatile PCI Based Universal T1 E1 Cards - that provide comprehensive and versatile T1 or E1 testing capability.

PCI Based Universal T1E1 Card

The Universal HD T1 E1 is an enhanced PC-Based T1 and E1 solution that utilizes familiar computer user interfaces, to provide comprehensive and versatile T1 or E1 testing capability at a competitive price.

GL Communications Inc. in a press statement, conveyed today the availability of its versatile PCI Based Universal T1 E1 Cards- that provide comprehensive and versatile T1 or E1 testing capability. Mr. Vijay Kulkarni CEO of the company said, “The Universal HD T1 E1 is an enhanced PC-Based T1 and E1 solution that utilizes familiar computer user interfaces, to provide comprehensive and versatile T1 or E1 testing capability at a competitive price.

The Universal HD T1/E1 card is capable of both T1 and E1 interfacing. This features in-service monitoring and emulation of T1 and E1 circuit connections. It provides out-of-service troubleshooting such as bit-error-rate testing, alarm monitoring, signaling bit manipulation and recording, DTMF/MF generation and detection, and Drop and Insert capabilities.”

He added, “The T1 (E1) Pulse Mask Application compares incoming T1 (E1) pulses against the pulse shape mask specified by the ITU G.703 standard. Jitter measurement application can measured in the incoming T1/E1 signal for any unwanted variations. Graphical views simplify the understanding of PCM data. Time-domain is presented using an oscilloscope display, and frequency domain using spectral displays. Besides providing access to in-band PCM data, the T1 (E1) provides VF interface for monitoring and inserting audio with Drop and Insert. The unit also provides convenient handset interface for voice over the T1 or E1 line.”

Mr. Kulkarni further added, “Remote testing and monitoring can be done using simple script based or GUI based client software.

Precision Delay Measurement under basic software measures the Round trip Delay of a system. Round trip delay measurement is done by sending a BER pattern with the insertion of an errored bit and timing the reception of the errored bit. Measurement is precise and accurate to the microsecond level. A delay up to 8 seconds can be measured. The internal delay of the card is subtracted from the round trip delay.”

Some of the Important Features

  • Universal Boards are capable of T1 and E1 interfacing. Only software drivers differentiate whether T1 or E1 signals are being processed.
  • Universal boards can be plugged into either a 5 V or 3.3 V PCI bus., i.e. (PCI 2.1 Complaint)
  • Smaller Size – The boards are smaller, with dimensions are 4.2" x 7.1" vs. the older boards 4.2" x 9.2"
  • High Density and High Speed - The boards are significantly faster, and significantly more efficient than the older boards. The new boards use DMA and a 32-bit wide bus.
  • CPU Utilization - CPU utilization with the boards is negligible. For example, one can simulate echo on hundreds of timeslots by running simultaneously "delay/attenuate" on all 24 T1 ports on all timeslots. The new boards are compatible with dual processor motherboards and software that simulates dual processors (i.e. hyperthreading)
  • Universal boards have adjustable transmit clock frequency (+ / - 300ppm) for testing frequency lock sensitivity of T1 or E1 equipment. The transmit clock can be adjusted + / - 300 PPM

About GL Communications Inc.,

Founded in 1986, GL Communications Inc. is a leading supplier of test, monitoring, and analysis equipment for TDM, Wireless, IP and VoIP networks. Unlike conventional test equipment, GL's test platforms provide visualization, capture, storage, and convenient features like portability, remotability, and scripting.

GL’s TDM Analysis & Emulation line of products includes T1, E1, T3, E3, OC-3, OC-12, STM-1, STM-4, analog four-wire, and analog two-wire interface cards, external portable pods, and complete system solutions. Capabilities include voiceband traffic analysis and emulation across all traffic types (voice, digits, tones, fax, modem), all protocols (ISDN, SS7, GR-303, Frame Relay, HDLC, V5.X, ATM, GSM, GPRS, LTE, etc.), and with capacities up to thousands of channels. Our newest products provide astonishing capacity and capture capability up to and including gigabit speeds.

GL’s VoIP and IP products generate / analyze thousands of calls and traffic simultaneously with traffic types such as frames, packets, voice files, digits, video, tones, noise, and fax. Almost all codecs are supported including G.711, G.729, AMR, EVRC-A,B,C, GSM, iSAC, and many more. Additional features include visual analysis, real-time listening, and recording. The product line also includes Ethernet / IP Testing capability that simulates and checks frame transport and throughput parameters of Ethernet and IP networks, including delay, errors and other impairments.

GL's Voice Quality Testing (VQT) product line complements all of GL's products. Using ITU-standard algorithms (PAMS, PSQM, and PESQ), GL's VQT provides a widely accepted solution for assessing voice quality in the telecom industry. Voice Quality Testing across multiple networks (T1, E1, T3, E3, OC-3, OC-12, VoIP, Wireless, and Landline) are all available.

GL’s Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA, UMTS, and LTE networks. Connections can be made to any wireless phone with automated call control, GPS mapping and real-time signal measurements.

GL’s Echo Canceller testing solutions provide the broadest range of simulation and analysis, including line and acoustic echo. GL’s compliance testing per G.168. G.167 and P.340 across TDM, IP, VoIP and Wireless networks is widely accepted in the industry.

GL’s wireless VQT solutions help assessing impairments to voice quality such as poor mobile phone quality, voice compression and decompression algorithms, delay, loss and gain in speech levels, noise, acoustic and landline echo, and other distortions are easily assessed and accurately measured.

GL’s Handheld data testers can test a wide variety of communications facilities and equipment including T1, fractional T1, E1, fractional E1, T3 and E3 modems, multiplexers, CSU, DSUs, T1 CSUs, DTUs, NTUs and TIUs and more. The testers provide convenience, economy, and portability for almost any interface, including RS232, RS-422, RS-530, X.21, T1, E1, T3, E3, and many others.

GL’s Network Surveillance and Monitoring products include Probes for TDM, IP, VoIP, ATM, and Wireless networks. An open standards based approach provides a scalable, feature rich, real-time access to network characteristics. Centralized or distributed access, efficient transport and database loading allow compatibility with 3rd party and standards based monitoring systems.

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