Troubleshooting; Basic Troubleshooting; Troubleshooting Digital Extensions - NEC Aspire S Manual

Section 3: Installing Extensions and Trunks

TROUBLESHOOTING

Basic Troubleshooting

Troubleshooting Digital Extensions

Verify the ESIU PCB
is functioning.
Is the Live
Status LED on
the ESIU PCB
flashing green?
Verify whether a digital
keyset works.
Connect a test
telephone to a port
using another
modular jack. Does
the phone work?
Verify the wiring
between the cabinet and
the keyset.
Connect the phone
directly to the
connector on the
ESIU. Does it work?
Connect another
telephone to the
same port on the
ESIU. Does it work?
The telephone may
need repair.
3-16 ◆ Section 3: Installing Extensions and Trunks
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No
Yes
Yes
No
Yes
No
No
Yes
Move the Run/Block
switch on the PCB to
the RUN position.
Yes
Is the Live
Status LED
No
solid green?
No
Main equipment
(cabinet/CPU) may
need repair.
Redo the wires between
the main equipment and
the modular jack.
* If it still does not work,
replace the cable(s) and/
or connectors.
Redo the wires between
the main equipment and
the telephone.
Check system
programming for the
extension. Refer to the
Aspire Software
Manual if necessary.
Main equipment
(cabinet/CPU) may
need repair.
No
Remove the PCB and
insert another ESIU
PCB into the same slot.
Does it work?
Yes
The ESIU PCB may
need repair.
* If it still does not work,
replace the cable(s) and/
or connectors.
Connect the
phone directly to
the connector on
Yes
the ESIU. Does it
work?
No
The ESIU PCB may
need repair.
Aspire S Hardware Manual
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