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Newsletter: GL Announces Handheld Portable Test Instruments for TDM and IP Networks

Welcome to another May 2012 issue of GL's Newsletter providing information and insight into our latest Handheld Portable Test Instruments: PacketShark™, IPNetSim™ - Handheld and LinkTest™ Dual E1.


GL's handheld telecom test instruments are simple and easy to use and are designed to test almost any network interface including TDM (Analog, T1, E1, T3, and E3) and IP (Ethernet) networks. They are portable, battery operated, rechargeable, and light.

Brief Description of our Latest Handheld Portable Products

PacketShark™ - GbE Packet Capture, Filter & Aggregation Tap

GL's PacketShark™ is a handheld unit that can tap Packet Networks, and capture Ethernet and IP packets at wire speed over optical or electrical interfaces up to 1 Gb/s. It selectively filters the captured packets based on specified criteria. Packets are transmitted through two ports with the packets that are traffic compliant with the filters are sent to a packet analyzer, such as GL's PacketScan™ for detailed packet analysis. Alternatively, the traffic can be even sent to a memory card (SD) and later analyzed offline.

Some of the important Features
  • Ability to capture packets at any point in the Network
  • Wirespeed, analysis with zero loss and zero delay - Equipped with a unique Zero Delay technology that ensures every packet goes through without delay (even if power is lost)
  • Capture in the field and analyze in the office - Field storage of captured data using an external storage device (SD memory card) in PCAP format.
  • Matching packets are copied and forwarded to the drop LAN port.
  • Traffic and Signal Regeneration
  • Sixteen (16) simultaneous filters can be applied to the traffic.
  • Firmware filters to identify traffic MAC, IP, UDP or TCP flow.

IPNetSim™ Handheld - Ethernet, IP, WAN Network Emulator

GL's IPNetSim™ - Handheld is a handheld battery operated instrument that can simulate real-time IP and Carrier Ethernet network dynamics by means of hardware controlled packet delay, loss, jitter, errors, bandwidth constriction, congestion, and duplication. IPNetSim™ Handheld simulates network behavior of up to 1 Gbps rates with accuracy always better than 1ms. IPNetSim™ Handheld is equipped with a hardware based impairments generator, and dual GbE ports.

Some of the important Features

  • Shape and manage up to 16 independent flows of traffic with predefined QoS.
  • Impairment generation on each flow including Latency, Packet Loss, Duplication, Delay, Jitter
  • Impairments as per ITU-T Y.1541 standard
  • Jumbo frames support up to 17 kBytes
  • Traffic shaping and Traffic Policing
  • Events: Packet loss, delay, error, duplication, jitter, bandwidth limitations, and congestion,
  • Events are implemented at Ethernet layer

LinkTest™ Dual E1 - E1, DataCom, Jitter, Wander Testing

GL's LinkTest™ Dual E1 is a handheld dual-port tester for E1 and data communications (V.11 / X.24, V.24/RS232, V.35, V.36/RS449, EIA-530, EIA-530A) interfaces. With the support of a large range of software options for E1 services and sub rate multiplexing system, this handheld unit provides a scalable test solution for E1 and data testing. It provides a large, clear screen with a full set of physical layer tests for E1 balanced and unbalanced circuits including BERT, VF, round trip delay and signal level.

Some of the important Features
  • Multi-interface capability: V.24/RS232, V.11/X.24, V.35, V.36/RS449,
  • Supports ITU-T G.711 encoding with A law, G.703 (E1 2.048 Mbit/s), G.704, G.703 co-directional
  • ITU-T G. 821, G. 826, and M. 2100 performance analysis
  • Supported Line codes – HDB3 (High-density bipolar with three zeroes), AMI (Alternate mark inversion)
  • Rugged, handheld, battery operated, low-cost, and software upgradable design for field use
  • Carry out generation and analysis of both framed signals (as per ITU-T G.704) and unframed tests
  • Collection of call records from remote locations

For comprehensive information on the applications, please refer to Hand Portable Test Instruments web page.


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