IBM 5500 Operational, Installation, And Maintenance Manual page 112

Chapter 6: Twinax Client Cabling Requirements and Problem Solving
Figure 42 shows an open shield, WSC only polling (system running, but no
one is signed on to a display station on this WSC).
55E1I019
Figure 42: 10 mv/div vertical, 10 ms/div horizontal
Figure 43 shows an open shield, WSC only polling (system running, but no
one is signed on to a display station on this WSC).
55E1I020
Figure 43: 10 mv/div vertical, 10 ms/div horizontal
112 Planning, Installation, and Maintenance Guide