IBM 3279 2A Maintenance Information page 19

3279 MIM
For jumpers, use assembly as shown
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B C D E F
Chapter I. General Description and Location
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TOP CARD CONNECTOR LA YO
BY MODEL AND FEATURE
Model A Model B
with PS
1-8
220' 02
~
D2·E2
D2·E2·F2
33, ,13
Pin assignments
3
4
*
Feature
**
Model B only
Notes:
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Top Card Id:ntlflcatlon
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33
1. If Video Output Facility is installed, line control card is replaced
by
video output card.
2. Mlhen installing Top Card Connectors ensure that the longer (curved) pins are plugged
into the card and the part number reads from top to bottom. Check that the cover and
label have been installed correctly.
Figure 1-6. Logic Card and Top Card Connector Locations (card side)·
C3·D3 C3·D3
C3·D3
E3·F3
C4·D4
C4·D4 C4·D4
C5·D5
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