pef2256e Infineon Technologies Corporation, pef2256e Datasheet - Page 126

• Manufacturer Part Number: pef2256e
• Description: E1/t1/j1 Framer And Line Interface Component For Long- And Short-haul Applications
• Manufacturer: Infineon Technologies Corporation

5.1.8
For short-haul applications like shown in
switched into receive line monitoring mode (LIM0.RLM = 1). One device is used as a
short-haul receiver while the other is used as a short-haul monitor. In this mode the
receiver sensitivity is increased to detect an incoming signal of -20 dB resistive
attenuation. The required resistor values are given in
Figure 46
Table 28
Parameter
1)
Using the receive line monitor mode and the hardware tristate function of transmit lines
XL1/2, the FALC
and transmission line. In these kind of applications both devices are working in parallel
User’s Manual
Hardware Description
2
1
2
3
:
This includes all parasitic effects caused by circuit board design.
(± 1 %) [Ω]
(± 1 %) [Ω]
(± 1 %) [Ω]
1
1)
Receive Line Monitoring Mode
Receive Line Monitoring
External Component Recommendations (Monitoring)
®
56 now supports applications connecting two devices to one receive
T1
100
100
430
1 : 1
126
Characteristic Impedance [Ω]
Figure
46, the receive equalizer can be
Table
Functional Description T1/J1
28.
J1
110
110
470
1 : 1
DS1.1, 2003-10-23
PEF 2256 H/E
FALC
®
56