Led Indicator Troubleshooting; Table 5-4 Netpath 100 Led Diagnostics - Zhone 100 User Manual

LED Indicator
Troubleshoot-
ing
NetPath 100 LED Status
T1
POWER READY
ALARM
ON ON OFF
OFF --- ---
ON Flashing ---
ON ON ---
but
Flash OFF
every
5 Secs.
ON OFF ---
ON ON Flashing
Slowly
ON ON Flashing
Fast
ON ON ON
ON ON OFF
ON ON OFF
ON ON OFF
ON --- ---
ON --- ---
NOTE: A table entry of "---" means status of that LED is not relevant.
*Refer to Software Download on the next page of this manual for description.
980-001-0210G
June 1999
The NetPath 100 front panel LED indicators may also be used to troubleshoot a prob-
lem. Table 5-4 describes the LED indicator's normal states, and some possible causes
for abnormal indications.
.

Table 5-4 NetPath 100 LED Diagnostics

HS PORT HS PORT
FR MGMT.
TxD RxD
Flashing Flashing ---
--- --- ---
--- --- ---
--- --- ---
--- --- ---
--- --- Flashing
Slowly
--- --- Flashing
Fast
--- --- ---
On Steady --- ---
or OFF
--- On Steady ---
or OFF
--- --- OFF
--- --- ---
--- --- ---
NetPath 100 User's Manual - Installation Guide
Condition
MODEM
IN USE
--- NORMAL, No problem Normal LED status for NetPath 100.
---
Loss of power to
NetPath 100
--- NetPath 100 performing
self-test
--- Improper AUX 2 cable
detected.
--- NetPath 100 fails
45 sec. self-test
--- NetPath 100 is waiting
for a software
download*
--- NetPath 100 is in the
process of
downloading* its
software
--- Loss of T1 facility
--- Loss of Data from DTE Check power to DTE and
--- Loss of Data to DTE
--- Loss of management
channel data
OFF Dial Line on hook
ON Modem in use
5 Diagnostics
Possible Cause(s)
Check AC power cord to NetPath 100.
Verify AC outlet is powered.
Normal on power-up or reset, duration
of test approx. 45 seconds. Successful
completion sets READY LED On
steady.
Continuous cycles of flashing indicate
critical internal circuit fault, replace with
known good unit.
Disconnect AUX 2 cable and contact
Technical Support immediately.
Internal circuit fault.
Replace with known good unit.
A command was issued to the unit to
upgrade its software, or an error was
detected in the internal program storage.
Do not disturb the unit until this process
completes.
Check T1 facility.
interconnection cable.
Check for data from Network and/or for
LMI traps from Network.
Check for valid DLCI.
Normal for no Dial-In or Dial-Out.
Normal for Dial-In or Dial-Out.
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