IBM Medium J11 Hardware Installation And Maintenance Manual page 59

2. Rotate the inner CMA cable capture arm into the C-bracket to secure the rest of the data cables. The
outer CMA cable capture arm may need to be pushed down in the C-bracket to allow the inner cable
capture arm to seat properly. The CMA bracket may need to be shifted slightly in order for the
thumbscrew to find the PEM thread in the CMA shelf. Secure the thumbscrew.
Note: This model of the Disk Enclosure does not contain an IOM in slot 1. Thus, disregard the red
cables in the figure below.
Chapter 4. Installation 39