PEB2256E INFINEON [Infineon Technologies AG], PEB2256E Datasheet - Page 124
PEB2256E
Manufacturer Part Number
PEB2256E
Description
E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
Manufacturer
INFINEON [Infineon Technologies AG]
Datasheet
1.PEB2256E.pdf
(490 pages)
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and transmission line. In these kind of applications both devices are working in parallel
for redundancy purpose (see
one must be switched into transmit line tristate mode. If both channels are configured
identically and supplied with the same system data and clocks, the transmit path can be
switched from one channel to the other without causing a synchronization loss at the
remote end.
Figure 44
5.1.8
There are different definitions for detecting Loss-Of-Signal alarms (LOS) in the ITU-T
G.775 and AT&T TR 54016. The FALC56 covers all these standards. The LOS indication
is performed by generating an interrupt (if not masked) and activating a status bit.
Additionally a LOS status change interrupt is programmable by register GCR.SCI.
Data Sheet
Receive Line
E1/T1/J1
E1/T1/J1
Transmit
Line
Loss-of-Signal Detection (T1/J1)
Protection Switching Application
Figure
44). While one of them is driving the line, the other
124
XL1
XL2
RL1
RL2
XL1
XL2
RL1
RL2
Functional Description T1/J1
(stand by)
(active)
FALC
FALC
TRIST
TRIST
®
®
RDO
RDO
XDI
XDI
FALC56 V1.2
1
PEB 2256
2002-08-27
F0075
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