HP 16500A Service Manual page 31

In order to ensure correct insertion, the 68-pin "D" connectors on each end of the
interface cable are asymmetric in shape. They only fit into their respective ports
on the cards when oriented to match the shape of the ports.
7. Insert one end of the interface cable into the port located on the mainframe interface card in the
HP 16500A. Insert the other end of the interface cable into the port located on the expansion
interface card in the HP 16501A.
When connecting the interface cable, you will hear two clicks. Make sure the
cable connector is properly seated into the port by pulling the connector without
pressing the release tabs. If the connector is properly seated, it will remain
connected to the port.
Figure 2-13 shows the HP 16500A and HP 16501A configuration.
Note
Note
Figure 2-13. Configuration
HP 16500A/16501A - Installation
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