Installation guide

Installation Troubleshooting 7–5

Table 7–1 (Cont.) Troubleshooting Chart

Symptom(s)

Probable

Cause(s)

Corrective

Action(s)

Fan is not spinning

and power supply

LED is not lit, but

SF72 enclosure is on.

1. Bad power

supply.

1. Replace power

supply.

2. Bad power cord. 2. Replace cord.

3. Bad TTM. 3. Conﬁgure a new

TTM and replace.

NOTE

The DSSI bus meter, or DBM, is a small, easily portable device used to

look at bus signals in real-time as well as to verify DSSI ID numbers. The

DBM can quickly locate faulty cables or duplicate DSSI ID numbers on a

given DSSI bus.