External Interfaces; Display Terminal; Display Terminal Interfaces - Control Data Corporation CDC CC63X Hardware Maintenance Manual

I
I
EXTERNAL INTERFACES
The internal and external interfaces used in the terminal connect
to the main logic board as shown in figure 4-3. The terminal may
be connected to a host either through the RS232-C interface (rion-
nector Jl) or through the internal modem interface (I/F-4 slot).
The main bus interface (connector J4) can accommodate up to three
small option modules and two large option modules. A small
option mother board (internal to the terminal) provides a fanout
of the bus to accommodate the three small options. These small
options plug into I/F 1, I/F 2, and I/F 3 slots in the rear of
the terminal (connect to mother-board J2, J3, and J4 connectors
respectively). If installed, the memory module connects to main
logic board connector J3. The main logic board connectors J2,
J5, J6 and J8 contain internal interfaces. A diagram of these
interfaces is shown in figure 5-1.
4-6
MONITOR
CABLE
ASSEMBLY
A5
P3
PI
J3
DISPLAY
TERMINAL
MAIN LOGIC BOARD
AI
PI
PI
TO
LARGE OPTION
(lIF 5 SLOT)
RS-232
{DATA SET}
MEMORY
MODULE
MAIN BUS TO
I---~ LARGE OPTION
BOARDS
(lIF
4
a
IIF 5
SLOTS)
P2 (P4) (P3)
~~~---- ------~
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OPTION
I
I
MOTHER BOARD 1
I
AS
r-;===~~===l====i
-
J5 -
-I
1
I
(FJr°U~f)
1
1
L
~~T~O~-l
TO
, IIF 1
TO
IIF 2
TO
/IF 3
I
REAR PANEL
SMALL OPTION SLOTS
04075-3
Figure 4-3.
Display Terminal Interfaces
62940034 E
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