Aria-24
ipe
Digital Key Telephone System
Installation Manual
Issue 1.5
Aria Technologies
90
PROBLEM
CAUSE / SYMTOM
SOLUTION
CO line operation
ACNR Fail
Check the PRCPTU4, and CPCU4
Bad connection
The bad connection must be checked
ISDN board does
not operate
The position of switch
Check the switch of term and So/To position
Network problem
Check the network side.
Noise on External
Paging port
Induced noise on the
wire between the system
and the amplifier
Use a shield cable as the connection wire between
the system and amplifier.
A short shield cable is recommended.
Distorted
External
MOH
Excessive input level
from external music
source
Decrease the output level of the external music
source by using the volume control on the music
source.