Operations Manual

Troubleshooting
MCPS2000 System Operation 19
Spectrian Proprietary -- See notice on first page
3 Troubleshooting
3.1 Introduction
This chapter provides basic information about diagnosis of problems with the
MCPS2000. Please read the following safety information prior to beginning
diagnosis and repair actions.
☛ Important: Troubleshooting and repairs should be performed only by trained and
qualified personnel or at authorized Spectrian repair depots. Observe all safety
warnings and use the required safety equipment when performing the tasks
described in this chapter.
3.1.1 Safety Information
To avoid injury, installers, technicians, and maintenance personnel must follow
Spectrian's recommended procedures and observe all safety precautions.
☛ The MCPS2000 transmits high power at radio frequencies. Severe radiation burns
can occur if recommended safety precautions are not strictly observed.
☛ Warning: Persons with cardiac pacemakers should avoid exposure to RF radiating
elements.
☛ Warning: Exposing the human eye to high levels of radio-frequency radiation may
result in the formation of cataracts. Do not operate exposed circuitry or radiating
elements with personnel in close proximity to the radiating source. Always replace
covers and shields during operation.
☛ Except where specifically indicated, always disconnect RF input power and DC
input power to the MCPS2000 before performing procedures that do not require
power. For those procedures that do require power, be extremely cautious in
handling test leads, tools, and equipment near live circuits. Never reach into an
enclosure for the purpose of servicing or adjusting except in the presence of a
person who can render aid.
3.2 Alarm Definitions
Fault management may be accomplished by various means with the MCPS2000.
The MCPS2000 includes alarm LEDs, an RS-232 diagnostics port, and an optional
base station status/alarm interface. These LEDs may be used for visual diagnostics
by on-site technicians.
3.2.1 Alarm classification
The MCPS2000 fault management subsystem classifies faults into three categories.
In order of escalation, these are minor faults, major faults, and critical faults.