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XRT7250 Datasheet(PDF) 420 Page - Exar Corporation

Part # XRT7250
Description  DS3/E3 FRAMER IC
PDF  463 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT7250 Datasheet(HTML) 420 Page - Exar Corporation

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XRT7250
DS3/E3 FRAMER IC
REV. 1.1.1
401
tion of the Local Transmit E3 Framer block, which will
transmit an E3 frame to the Remote Terminal, with
the FEBE bit-field set to “0” . This signaling indicates
that the Local Receive E3 Framer has received an er-
ror-free E3 frame.
FIGURE 196. ILLUSTRATION OF THE LOCAL RECEIVE E3 FRAMER BLOCK, RECEIVING AN E3 FRAME (FROM THE
REMOTE TERMINAL) WITH A CORRECT EM BYTE.
Transmit E3
Framer
Receive E3
Framer
Local Terminal
Remote
Terminal
EM Byte
Locally Calculated
EM Byte
0x5A
0x5A
FIGURE 197. ILLUSTRATION OF THE LOCAL RECEIVE E3 FRAMER BLOCK, TRANSMITTING AN E3 FRAME (TO THE
REMOTE TERMINAL) WITH THE FEBE BIT (WITHIN THE MA BYTE-FIELD) SET TO “0”
Transmit E3
Framer
Receive E3
Framer
Local Terminal
Remote
Terminal
MA Byte
x0xxxxxx
FEBE bit



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