Sony PCS-1 System Integration Manual page 41

9. No line is connected. (ISDN)
connection, check that address of ISDN line
connected to local terminal is properly set
PCS-1/PCS-1P
SS-09
Are contents of
setting in dial list and
system setup proper? (For bonding
to second page of ISDN set menu
on the incoming
side.)
YES
Are
communication terminal
and ISDN unit properly
connected?
YES
Does STATUS
lamp of ISDN unit blinks
in green?
YES
Do STATUS 1 to 6
lamps of ISDN unit light in
yellow proportionally to number of
connected lines when line is connected
to ISDN unit by number of
connected lines?
YES
Communication terminal is defective.
NO
Set it properly.
NO
Connect them properly.
NO
Communication terminal or ISDN unit
is defective.
NO
ISDN unit or network is defective.
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