Data General Service ECLIPSE MV/7800 - I;O Controller Cabling and Priority Jumpers; CPU PCB Jumper;Switch Checks

6.4.5 I/O Controller Cabling and Priority Jumpers
Use Figure 6-14 to check the CPU chassis back panel I/O slot priority chain jumper connections.
FAST DCH JUMPER
THIS JUMPER IS ONLY USED WHEN A STANDARD SPEED
DATA CHANNEL I/O CONTROLLER IS CONFIGURED. IT
RETURNS THE DCHP OUT SIGNAL TO THE CPU.
CONTROLLERS #3 THRU 8 WILL RECEIVE HIGH SPEED
DATA CHANNEL SERVICE WHILE CONTROLLER #9 WILL
RECEIVE STANDARD SPEED DATA CHANNEL SERVICE.
WHEN AN I/O CONTROLLER RESIDES OUTSIDE
THE CHASSIS, IT MUST BE CONFIGURED AS A
STANDARD SPEED DATA CHANNEL CONTROLLER.
1)
FOR JUMPERING OF INTERRUPT AND DATA CHANNEL
PRIORITIES, CONNECT A PAIR OF JUMPERS BETWEEN
A96, A94 AND A95, A93, RESPECTIVELY, OF SLOT
IMMEDIATELY BELOW LOWEST NUMBERED SLOT
CONTAINING AN I/O BOARD. USE JUMPER 005-015135.
2)
OPEN I/O SLOTS MUST BE JUMPERED OVER
AS SHOWN AT RIGHT.
3)
FOR MORE INFORMATION CONCERNING
INTERRUPT AND DATA CHANNEL PRIORITY
TO PIN B11
SLOT 1
A93
A95
A94
A96
i
16  i -
1  I
, 15
i
14
t
i  -
I 
I
13
1
12 1
11
10
9
1
1  .
4/ 
I
0/A -
MO I
la
i
11
11
2
•
I/O CONTROLLER 9
‹ co, .... 
OR
BUS REPEATER
■
■
OPEN SLOT
OPEN SLOT
..,---•
I/O CONTROLLER 8
...... ■
■ ,
% <co../ I/O CONTROLLER 7
k-%
' ■
‘,, ..................
I/O CONTROLLER 6
■
■ 
I/O CONTROLLER 5
...........•
I/O CONTROLLER 4
„„......../
.
c...
...........--•
I/O CONTROLLER 3
■
■
, 
OPEN SLOT
■ -- ■ "-
OPEN SLOT
OPEN SLOT
.....'"....-...
OPEN SLOT
OPEN SLOT
EMPTY SLOT
.............. ■ CPU
■ =2
SCHEMES, REFER TO THE INTERFACE

DCHP IN
DESIGNER'S REFERENCE FOR MV/7800.
DCHP OUT
INTP IN
INTP OUT
INTP OUT
DCHP OUT
FS-12739
Figure 6-14. CPU Chassis I/O Slot Priority Chain Jumpering
6.4.6 CPU PCB Jumper/Switch Checks
Remove the CPU PCB from slot 1 to check the jumpering and system console baud rate. Refer to Tables 6-4 and
6-5 and Figure 6-15 to compare the jumpers with the configuration tables.
043-003621 
6-22 
DGC CONFIDENTIAL - INTERNAL USE ONLY