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Table of Contents
Related Manuals for Meinberg Line InterfaceUnit v2.0
Summary of Contents for Meinberg Line InterfaceUnit v2.0
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Page 1: Operating Instructions
Technical Information Operating Instructions nterface nit v2.0... -
Page 2: Impressum
Impressum Meinberg Funkuhren GmbH & Co. KG Lange Wand 9 D-31812 Bad Pyrmont Phone: +49 (0) 52 81 / 9309-0 Fax: +49 (0) 52 81 / 9309-30 Internet: http://www.meinberg.de Email: info@meinberg.de May 25, 2010... -
Page 3: Table Of Contents
Table of Contents Impressum .................... 2 Features LIU ..................5 Block diagram ................6 Standard frequencies ..............7 Telecom signals ................7 Pulse templates ..............8 Technical specification LIU ............9 Signals at the VG-connector............10 Rear connector pin assignments ..........11... -
Page 5: Features Liu
Out 4 The board LIU (Line Interface Unit) was designed to convert the GPS-locked standard frequency of a preconnected Meinberg satellite controlled clock GPS170 or GPS170SV into several timing signals that can be used for various synchronization or measurement tasks. Typical applications are:... -
Page 6: Block Diagram
Block diagram The following block diagram illustrates the functional principle of the board LIU: diplexer diplexer diplexer... -
Page 7: Standard Frequencies
Standard frequencies The 5 MHz and 10 MHz standard frequencies are derived directly from the master oscillator of the preconnected GPS-clock. This oscillator is phase locked to the precise PPS-signal (pulse per second generated from GPS-receiver), thus the standard frequen- cies are locked to the PPS also. -
Page 8: Pulse Templates
Pulse templates The following pulse templates are required by ANSI (T1-mode) and CCITT (E1-mode) for output signals in telecom applications. The board LIU meets these recommendations. T1 (T.403): E1 (G.703):... -
Page 9: Technical Specification Liu
Technical specification LIU INPUT SIGNALS: 10 MHz, TTL level 4.096 MHz reference clock, sine-wave 1.5 V eff. FREQUENCY 10 MHz and 5 MHz sinewave, 0.6 Vrms into 50 Ω OUTPUTS: CLOCK OUTPUTS: 1544 kHz or 2048 kHz according to G703 4 outputs 75 Ω... -
Page 10: Signals At The Vg-Connector
Signals at the VG-connector Name of signal contact description 32a+c reference potential VCC in (+5V) 1a+c +5V power supply /BSL control input for firmware updates TTL level, active low /Reset in/out reset signal, TTL level, active low 10MHz in reference frequency 10 MHz, TTL level CLK 4.096MHz in 21c reference frequency 4.096 MHz, sine-wave COM0 TxD out... -
Page 11: Rear Connector Pin Assignments
Rear connector pin assignments... - Page 12 L I U2 0 - E - 2 5 0 5 1 0...
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