Agilent Technologies HP 16500H, HP 16505A, HP 16500B manual Verify the Interface Module Performance

Servicing the Interface Module

Verify the Interface Module Performance

Verify the Interface Module Performance

Before starting the interface module performance verification, check all cables and connectors to ensure that all cables are properly connected.

The interface module performance verification (self-test) is divided into two sections. The first section tests the physical connection, for example, the cable and termination. The second section tests the internal functions of the LAN IC on the LAN interface module. When both sections of the self-test have been completed, a status reporting message appears in the Option Board Test menu. The status reporting message indicates whether the tests pass, if a failure occurs, and which section failed.

The first section, the physical connection, is tested depending on the LAN topology used. Because EtherTwist (10Base-T) is used, the interface module will listen for the heartbeat signal from the LAN. If a heartbeat is received, then the physical connection is considered good.

The second section is tested using internal loopback features of the LAN IC. Transmitted packets are looped back to the receive circuit of the LAN IC . When the looped back packets are received, they are processed like a packet received from a remote client or server. If the looped back packet is recognized and processed, then the LAN IC and the LAN function are considered good.

The Option Board Test also tests the system integrity of the High Speed Port on the interface module. If an HP 16501A Expandsion Frame is connected, the Option Board Tests can also be used to test the expansion frame interface.

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