ADIC Scalar 1000, SNC 5100 Missing terminator at the end of a Scsi bus, Excessive termination

SNC 5100

Missing terminator at the end of a SCSI bus

Check that an external terminator is attached or that the end device has termination enabled.

Excessive termination

Check that all devices other than the end devices have termination disabled.

Multiple devices at the same ID

If two or more devices are configured at the same SCSI ID, only one of those devices will be seen by the SNC 5100, and data transfers to that device will be unreliable. Check that only one device is set to each ID.

Target device set to initiator’s ID

If a target device is set to the same ID as the SNC 5100 (ID 7), the bus will be unstable and targets will not be identified. Check that no target devices are set to ID 7, or if one must be set to 7, change the SNC 5100 Initiator ID.

Bent pins in a SCSI connector

The pins in the SCSI connectors are somewhat fragile. Inspect each connector to find pins that were bent when the connector was attached. Replace any cables with bent pins.

Improper device type

A DE device on an SE bus or an SE device on a DE bus will cause the bus to be unusable.

Improper terminator type

A DE terminator on an SE bus or an SE terminator on a DE bus will cause the bus to be unusable.

28 Other Installation Issues

6-00020-02