T1 E1 Single or Dual Multiport Repeater

08th, Nov 2019

Welcome to another issue of GL's Newsletter providing information on our Single or Dual Multiport Repeaters in portable and high-density rack enclosures. In addition to the USB based portable units, GL offers mTOP™ rack enclosures with USB based units which can be stacked to provide a high-density form factor solution.


Multiport Repeaters are used to generate multiple identical T1/E1 outputs for each T1/E1 input, thereby increasing the range of transmission of T1/E1 signals.

single/ dual multiport repeater can be used for the following purposes:

  • To generate multiple identical T1/ E1 outputs for each T1/ E1 input
  • To test and load multiple T1/ E1 interfaces simultaneously
  • For broadcast applications and traffic generation and simulation
  • To preserve the strength of the signal and extend the transmission distance

The single bantam version provides ten identical outputs from a single T1/ E1 input. The single RJ45 version provides 12 identical outputs from a single T1/ E1 input. The dual version provides four outputs for each of the two inputs.

GL offers mTOP™ high-density rack hardware test platforms, which are 1U/2U rack enclosures within which USB based T1/E1 Multiport Repeaters can be stacked to provide a high density form factor solution.

The sleek design of T1/E1 multiport repeaters allows multiple units to be easily placed in a mTOP™ 1U/2U rack mount enclosure, providing different variations.

1U mTOP™ rack w/ Dual T1 (1:4) Multiport Repeater

1U mTOP™ rack w/ Dual E1 (1:4) Multiport Repeater

The chassis comprises of single/ dual Multiport Repeater with stacked USB units greatly reducing the licensing costs per device. It is a perfect T1/ E1 Multiport Repeater for customers who require multi-port testing but are constrained by lab space. For more details on mTOP™ rack-based platform, refer to Test Tools in Rack Based Platforms.

Important Features of Single/Dual Multiport Repeaters:

  • The input and output connections are through standard bantam or RJ-45 jacks
  • Inputs and outputs are compatible with CCITT G.703
  • Units operate on a voltage of 7-12 V DC and draw a current of up to 1000 mA
  • T1 and E1 signals are terminated at 100 Ohms or 120 Ohms respectively
  • The repeater permits output drive for line lengths up to 655 feet
  • The T1 Multiport Repeater and E1 Multiport Repeater are available as separate units
  • LEDs are provided to indicate the presence or absence of input signals and power
  • Provides Terminate, Bridge and Monitor modes of operation

For comprehensive information, please refer to the T1/E1 Single or Dual Multiport Repeater and the high density rack mount enclosure mTOP™ web pages.

Please review the above and give us a call if you are interested in the above product/software or for any other applications listed in our website. We would be happy to discuss your testing needs and we look forward to hearing from you.

Warm Regards,
Shelley Sharma
Phone: 301-670-4784 x114
Email: info@gl.com

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