PEB2256HT datasheet(64/490 Pages) INFINEON

부품명	PEB2256HT

상세설명	E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications

PDF	490 Pages

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제조업체	INFINEON [Infineon Technologies AG]

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FALC56 V1.2

PEB 2256

Functional Description E1

Data Sheet

2002-08-27

Figure 15

Receive Line Monitoring

Using the receive line monitor mode and the hardware tristate function of transmit lines

XL1/2, the FALC56 now supports applications connecting two devices to one receive

and transmission line. In these kind of applications both devices are working in parallel

for redundancy purpose (see Figure 16). While one of them is driving the line, the other

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.

Table 12

External Component Recommendations (Monitoring)

Parameter

This includes all parasitic effects caused by circuit board design.

Characteristic Impedance [

Ω]

120

1 (± 1 %) [Ω]75

120

2 (± 1 %) [Ω]75

120

3 (± 1 %) [Ω]330

510

2 : t1

1 : 1

FALC®

(Receiver)

FALC®

(Monitor)

RL1

E1/T1/J1

Receive

Line

LIM0.RLM=0

LIM0.RLM=1

RL2

RL1

RL2

t2 : t1

resistive -20 dB network

F0074

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