HP OmniBook 800CS/CT Uživatelský manuál stáhnout pdf (Strana 29)

Loop Back Connectors

In order to run the RS232 serial port, parallel port, and SCSI port self-test, a loop back connector

is needed. The loop back may be placed on either the OmniBook port or at the end of the

corresponding cable. This feature is also helpful in diagnosing a defective serial, parallel, or

SCSI cable.

Loop back connectors may be purchased or can easily be constructed. The following illustrations

identify the correct pin-out configurations for the serial, parallel, and scsi loop back connectors.

Figure 5 - Serial Loop Back Connector

Figure 6 - Parallel Loop Back Connector

Figure 7 - SCSI Loop Back Connector

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HP OmniBook 800CS/CT Uživatelský manuál Strana 29