AT&T 3B2/300 Technical Reference Manual page 177

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7.4"
v
v
lo
0.75"
I\
2764
ROM I
(SK X 8)
2764
ROM 0
(BK X 8)
6264 SRAM
(SK X 8)
(15-07)
6264 SRAM
(BK X 8)
(07-00)
6264 SRAM
(BK X 8)
(15-07)
6264 SRAM
(BK X 8)
(07-00)
82SIOSA
LOGIC
SEQUENCER
INTEL
80186
CPU
(COMPONENT SIDE)
2681
DUART 0
(SDO AND SDI)
2681
DUART I
(SD2 AND SD3)
r---------------------------,
I
LINE DRIVERS/RECEIVERS I
L---------------------------~
1 8 \
36
JS
TTY?S
PARALLEL
PORT
____ JI
19
J4 J3 J2 JI
TTY?4 TTY?!
SERIAL PORTS
Figure 2-50: CM195B-7 PORTS Card Layout
EQUIPMENT DESCRIPTION 2-153