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LIU
Line Interface Unit


Generation of reference clocks for synchronization tasks
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Generation of reference clocks for synchronization tasks

The module LIU (Line Interface Unit) generates different reference clock pulses which are derived from the GPS-locked master oscillator of a preconnected GPS clock. The output signals are available with high accuracy and stability therefore.


 


 

Key Features
Line Interface Unit

  • 3 Years Warranty RoHS compliant
  • Synchronization of telecom networks
  • Synchronization of transmitters/base stations (GSM/CDMA/UMTS/DAB/DVB)
  • Synchronization/calibration of laboratory equipment
  • Clock and Framed telecom outputs
  • Reference frequency delivered by preconnected GPS-receiver GPS170/GPS170SV
  • Standard frequency outputs




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Characteristics
Line Interface Unit


Control elements: E1- or T1-generator, settable by DIL-switch or control input
Accuracy of frequency outputs: The accuracy of the generated output signals depends on the master oscillator of the preconnected GPS-satellite controlled clock. The following options are available:
Option Short term stability with GPS-synchronization
OCXO MQ ±2·10E-10
OCXO HQ ±5·10E-12
Rubidium ±2·10E-12
Interface: Clock Outputs:
4 x 2.048 MHz (E1-mode) or 1.544 MHz (T1-mode), G.703, 75 Ohm, unbalanced and
4 x 2.048 MHz (E1-mode) or 1.544 MHz (T1-mode), G.703, 120 Ohm, balanced
Framed Outputs:
4 x 2.048 Mbps (E1-mode) or 1.544 Mbps (T1-mode), 75 Ohm, unbalanced or
4 x 2.048 Mbps (E1-mode) or 1.544 Mbps (T1-mode), 120 Ohm, balanced
Output pulses according to G.703 (E1-mode) or T1.403 (T1-mode) (T1-Mode) Line Coding HDB3 (E1-mode) or B8ZS (T1-mode)
Dimensions of the front panel: Width of the front panel depends on the number of front side outputs
4HP/3U - 16HP/3U (20 - 80mm x 128mm)
Electrical connectors: 64 pin rear VG edge connector DIN 41612
Female BNC-connectors for unbalanced outputs
BNC-Twinax-connectors for balanced outputs
Power supply: +5V DC
Current consumption: approx. 470mA
Board type: Eurocard
Board dimensions: 160mm x 100mm , 1,5mm Epoxy
Ambient temperature: 0 ... 50°C / 32 ... 122°F
Humidity: Max. 85%
RoHS-Status of the product: This product is fully RoHS compliant
WEEE status of the product: This product is handled as a B2B category product. In order to secure a WEEE compliant waste disposal it has to be returned to the manufacturer. Any transportation expenses for returning this product (at its end of life) have to be incurred by the end user, whereas Meinberg will bear the costs for the waste disposal itself.

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Downloads
Line Interface Unit

 
PDF Documents Please note that only the most recent manual version is available for download. This manual therefore may not be suitable for all product versions.

Software Downloads

  • For drivers, SDKs, tools and utilities, please check our Download area
 




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Telecom Network Synchronisation with LIU