Rainbow Electronics DS21458 - Manual (Page 16)

DS21455/DS21458 Quad T1/E1/J1 Transceivers
16 of 270
Figure 3-2. DS21455 Block Diagram
RECEIVE
FRAMER
RECEIVE
BACKPLANE
INTERFACE
TRANSMIT
BACKPLANE
INTERFACE TRANSMIT
BACKPLANE
INTERFACE
ELASTIC STORES
SIGNALING BUFFERS
INTERLEAVE BUS
RATE CONVERSION
2 HDLCs
2 HDLCs
TRANSMIT
FRAMER
ELASTIC STORES
SIGNALING BUFFERS
INTERLEAVE BUS
RATE CONVERSION
SYNCHRONIZATION
ALARM MONITORING
SIGNALING EXTRACTION
HDLC EXTRACTION
DS0 CONDITIONING
HDB3/B8ZS DECODER
FRAMING
CRC RECALCULAION(E1)
ALARM INSERTION
SIGNALING INSERTION
HDLC INSERTION
DS0 CONDITIONING
HDB3/B8ZS CODER
JITTER
ATTEN.
RECEIVE
LIU
TRANSMIT
LIU
CLOCK & DATA
RECOVERY
WAVESHAPE
GENERATION
MASTER
CLOCK
CPU INTERFACE
MUX/NON-MUX, INTEL/MOTOROLA
JTAG
MUX
TRANSMIT
OR RECEIVE
PATH
BERT
BERT
BACKPLANE
CLOCK
MUX
RCLK
RSER
RSIG
RSIGF
RSYNC
RFSYNC
RMSYNC
RCHCLK
RCHBLK
BPCLK
RSYSCLK
TSYSCLK
TCLK
TSER
TSIG
TSYNC
TSSYNC
TCHCLK
TCHBLK
RTIP
RRING
TTIP
TRING
LIUC/TPD
TPOSI
TNEGI
TCLKI
TPOSI TPOSI
TNEGO
TCLKO
TPOSO
RNEGI
RCLKI
RPOSI
RNEGO
RCLKO
RPOSO
8XCLK
TLCLK
TLINK
RLCLK
RLINK
ESIB
RLOS/LOTC
MCLK1 MCLK2
TRANSCEIVER #2
TRANSCEIVER #3
TRANSCEIVER #4
ESIBS0
ESIBS1
ESIBRD JTDO
JTDI
JTCLK
JTRST
JTMS
JITTER
ATTEN.
DS21455