HP 480-0005-00-15 manual Diagnostics, Common Symptoms/Problems

Chapter 8: Diagnostics/Maintenance

Diagnostics

Common Symptoms/Problems

Below is a list of common symptoms and problems you may encounter. Use this list as a guideline; if your problem is not listed, use the diagnostic procedure explained in the beginning of this chapter.

Table 8-1Common Symptoms/Problems

Common Symptom/Problem	Description/Solution
Unit will not turn on or LEDs on front lower	For AC units:
swing down panel of the chassis are unlit.	Check AC power source.
	Check fuse or circuit breaker. To check fuse continuity, see
	Inspect and Replace Fuse (for AC power only), later in this
	chapter.
	Ensure power supplies are fully seated.
	For DC units:
	Check that the supplies are fully seated in the DC chassis.
	Check the customer premises over-current protection
	device(s) are in the ON position.
	For Tenor CMS860 and CMS240: Ensure all wires are
	secured to the power entry plug and the plug is inserted to
	the power receptacle and secured with the anchor screws.
	Ensure the circuit breaker for the respective power entry
	point is switched to the ON position.
Communication between Tenor CMS and	There are several reasons why communication may not be
the PBX or PSTN cannot be established.	successful. A few of the most common are listed below.
	Verify correct cables are installed in the rear of the T1/E1/
	DS1 ports. See Chapter 3: Installation.
	Unit configuration may be wrong. Examine the configura-
	tion parameters via CLI.
	Network issues may cause a number of problems. Contact
	the Central Office to perform test procedures.

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