Meinberg Line InterfaceUnit v2.0 Operating Instructions Manual Download Page 8 | Manualshive

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8

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):

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Summary of Contents for Line InterfaceUnit v2.0

Page 1: ...Line Interface Unit v2 0 Technical Information Operating Instructions ...

Page 2: ...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: ...sum 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 Table of Contents ...

Page 4: ...4 ...

Page 5: ...Telecom networks Calibration and synchronization of laboratory equipment Test of synchronization of radio transmitters base stations GSM CDMA UMTS DAB DVB There are two seperate signal paths on the board LIU One is for providing the standard frequencies the second path is for generation of the telecom signals All output signals have high accuracy and stability because they are derived from GPS dis...

Page 6: ...olation isolation isolation isolation isolation isolation isolation isolation amplifier amplifier 4 096 MHz 10 MHz framed outputs T1 403 G703 9 balanced or unbalanced 1 544 Mbps or 2 048 Mbps standard frequencies 0 6Vrms sine unbalanced 5 MHz and 10MHz diplexer diplexer diplexer amplifier amplifier amplifier amplifier clock outputs G703 13 balanced 1544 kHz or 2048 kHz clock outputs G703 13 unbala...

Page 7: ...IP switch or the state of a control input in the following way DIP switch 1 ON or control input low E1 mode DIP switch 1 OFF or control input high T1 mode The clock outputs are standard frequencies of either 1544 kHz T1 or 2048 kHz E1 Four unbalanced and four balenced outputs according to ITU T G703 13 CCITT recommendation Physical electrical characteristics of hierarchical digital interfaces are ...

Page 8: ...8 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: ...x B8ZS HDB3 or AMI line coding Framer and line interface meets following recommendations T1 mode ITU I 431 AT T PUB43801 TR 62411 ANSI T1 102 T 403 T 408 E1 mode ITU T G 703 G 704 G 706 G 775 G 796 G 732 G 823 I 431 SHORT TERM STABILTTY depends on oscillator option of GPS clock ACCURACY depends on oscillator option of GPS clock POWER REQUIREMENTS 5 V 5 350 mA DIMENSIONS Eurocard 100mm x 160mm 1 5m...

Page 10: ...t 9c reset signal TTL level active low 10MHz in 12a reference frequency 10 MHz TTL level CLK 4 096MHz in 21c reference frequency 4 096 MHz sine wave COM0 TxD out 26c COM0 RS 232 output COM0 RxD in 30c COM0 RS 232 input SW1 in 16c input for mode control TTL level low E1 mode high T1 mode SW2 in 15c control input reserved for expansion TTL level SW3 in 14c control input reserved for expansion TTL le...

Page 11: ...i C C V 2 3 4 L S B 5 6 7 8 9 t u o n i t e s e R 0 1 1 1 2 1 n i z H M 0 1 3 1 4 1 n i 3 W S 5 1 n i 2 W S 6 1 n i 1 W S 7 1 8 1 9 1 0 2 1 2 n i e n i s z H M 6 9 0 4 2 2 3 2 4 2 5 2 6 2 t u o D x T 0 M O C 7 2 8 2 9 2 0 3 n i D x R 0 M O C 1 3 2 3 D N G D N G ...

Page 12: ...LI U2 0 E 2 5 0 5 1 0 ...

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