peb2255 Infineon Technologies Corporation, peb2255 Datasheet - Page 54

• Manufacturer Part Number: peb2255
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

4
4.1
Figure 11
Receive Line Interface
For data input, three different data types are supported:
• Ternary coded signals received at multifunction ports RL1 and RL2 from a -10 dB
• Digital dual rail signals received on ports RDIP and RDIN. The dual rail interface is
• Unipolar data on port ROID received from a fiber optical interface. The optical
Data Sheet
(short haul, LIM0.EQON = 0) or -43 dB (long haul, LIM0.EQON = 1) ternary interface.
The ternary interface is selected if LIM1.DRS is reset.
selected if LIM1.DRS and FMR0.RC1 is set.
interface is selected if LIM1.DRS is set and FMR0.RC1 is reset.
Alternatively the optical interface can be switched to pin 68 (XMFB/XOID) and pin 80
(ROID) by setting bit LOOP.SPN.
RL2/RDIN/RCLKI
RL1/RDIP/ROID
Functional Description E1
Receive Path in E1 Mode
Receive Clock System (E1)
Equalizer
SYNC
Detector
Analog
54
LOS
Recovery
Clock &
DPLL
Data
Detector
Alarm
XTAL1
16.384
Functional Description E1
MHz
Osc.
PD
Decoder
Line
DCO-R
FALC-LH V1.3
PEB 2255
RDATA
RCLK
2000-07
F0057