PM5345 S/UNI-155
DATA SHEET
PMC-930305
ISSUE 4
SATURN USER NETWORK INTERFACE
Figure 2
- Example 2. UTP-5 ATM Adapter Interface
TDAT[15:0]
Transmit
AAL
Processor
TSOC
TWRB
TCA
Line Driver
&
Transformer
PM5345
S/UNI
SATURN
ATM Terminal
USER NETWORK
INTERFACE
Transformer
&
Line Receiver
RCA
Clock
Recovery
RDAT[7:0]
RSOC
RRDB
Receive
AAL
Processor
Figure 3 shows a configuration in which the PM5345 S/UNI is used with a
PM5312 SONET/SDH Transport Overhead Terminating Transceiver (STTX) and a
PM5318 622 Mbit/s Serial/Parallel Converter (SIPO) to implement an ATM
backbone interface.
In this application, four STS-3/STM-1 ATM streams are multiplexed into a single
STS-12/STM-4 stream for transport over fiber optic cables. The function of the
PM5312, PM5318, clock recovery and clock synthesis are also available in the
PM5712B 622 Mbit/s SONET/SDH Line Interface Module (SLIM).
Figure 3
- Example 3. OC-12 ATM Switch Port Card Interface
STS-3c (STM-1)
STS-3(STM-1) To STS-12 (STM-4) MUX
ATM Termination
ATM
SWITCH
CORE
Clock
Synthesis
OPTICAL
FACILITY
#1
PM5345
S/UNI-155
OOF
TOUT[7:0]
#2
E/O
Serial /
Parallel
Conversion
TCLK
PM5312
RICLK
STTX
RIFP
RIN[7:0]
#3
#4
Clock
Recovery
O/E
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
7
PMC [ PMC-SIERRA, INC ]
