Overview
150-357-200-02, Issue 2
4
February 9, 1999
HXU-357 List 1
D
ESCRIPTION
This section provides a general functional overview and describes the key
components of the HXU-357 multiplexer.
Figure 3.
HXU-357 Multiplexer Block Diagram
CH 1-28 RX
TIP and
RING
CH 1-28 RX
TIP and
RING
DS3 RX
DATA
DS3 TX
LINE
DATA
DS3 RX
LINE
DATA
DS3
RX CLK
DS3 TX
DATA
DS3 TX
CLK
CH 1-28 TX
TIP and
RING
CH 1-28
TX DATA
CH 1-28
RX DATA
M13 MUX/DEMUX
DS1 Interface
CH 1-28
TX CLK
CH 1-28
RX CLK
CH 1-28 TX
TIP and
RING
28 DS1
LINE PROT
and
ON/OFF
LINE
DS3
MUX/
DEMUX
28 DS1
LIU
DS3 LINE
TRANSCEIVER
MICROPROCESSOR
MC68EN302
I/O
SRAM
WATCH
DOG
REAL TIME
CLOCK
CRAFT TERMINAL
INTERFACE
ETHERNET
INTERFACE
INTER
MIC COM
CLOCK
CIRCUITRY
FLASH
I/O
EEPROM
DATA BUS
ADDRESS
BUS