IBM 5155 Manual To Operations page 51

Note: If you do not have an mM
Communications Adapter Cable attached to
your system unit, go to the next page.
8
If you have an mM Communications Adapter
Cable, it came with a wrap plug. Disconnect the
Communications Adapter Cable at the modem
end (refer to the Communications Adapter
Cable's "Option Installation Instructions" for
the cable-removal procedure).
9
Refer to the figure below and install the wrap
plug (mM part number 8529280) on the modem
end of the cable (end furthest from the system
unit). Then go to the next page.
Communications Adapter
/Cable Connector
/ ' (Modern End)
I
Communications
Adapter Cable
Wrap Plug
January
1984 Start 20-3