Simplex 2120 Multiplex - Page 11

TABLE B
C = closed
0 = open
Example: On PRAM Board (Card 1):
Close Sl switches 1,2,3,4,6 and 8
Open Sl switches 5 and 7
TABLE C
I I
If PROM Chip(s)
lf RAM Chip(s)
or if both empty
I
IC Sockets
I
Close S2
I
Open S3
Switch
Switch
I
Open S2
Switch
I
Close S3
Switch
I
9 and/or 10
11 and/or 12
13 and/or 14
15 and/or 16
17 and/or 18
19 and/or 20
21 and/or 22
23 and/or 24
1
1
1
1
2
2
2 2
3
3
3
3
4
4
4
4
5
5
5 5
6
6
6
6
7
7
7
7
1 8 1 8 1 8 1 8 1
Example: In the case of sockets IC9 and ICl 0, if either or both contain RAM chips:
Close S2 switch 1
Open S3 switch 1
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