IBM 5280 User's Setup Manual page 16

You will be connecting one or two more cables to the IBM 5281. The cables are:
• One data station cable
• One diskette drive cable (optional)
Note: Under normal conditions, the cables do not carry high voltage and
there is no danger of electrical shock. However, to ensure safety, the power
cord plug should always be removed from the receptacle when you connect
or disconnect the cables.
Each cable connector is color coded. The data station cable connector is color
coded green. The diskette drive cable is color coded yellow.
Green or Yellow Label
User's Setup Procedures 9