TP-Link TL-SL3428 User Guide - Page 340

Problems, Possible Cause, Solution

Page 340 highlights

TL-SG3109/TL-SL3428/TL-SL3452 Gigabit Managed Switch Family CLI Reference Guide Problems No response from the terminal emulation software Possible Cause Faulty serial cable Incorrect serial cable Software settings Response from the terminal emulations software is not readable Self-test exceeds 15 seconds Faulty serial cable Software settings The device may not be correctly installed. No connection is established Wrong network address in and the port LED is on the workstation Solution Replace the serial cable Replace serial cable for a pin-to-pin straight/flat cable Reconfigure the emulation software connection settings. Replace the serial cable Reconfigure the emulation software connection settings. Remove and reinstall the device. If that does not help, consult your technical support representative. Configure the network address in the workstation Device is in a reboot loop No connection and the port LED is off No network address set Wrong or missing protocol Faulty ethernet cable Faulty port Faulty module Incorrect initial configuration Software fault Incorrect ethernet cable, e.g., crossed rather than straight cable, or vice versa, split pair (incorrect twisting of pairs) Configure the network address in the workstation Configure the workstation with IP protocol Replace the cable Replace the module Replace the module Erase the connection and reconfigure the port Download and install a working or previous software version from the console Check pinout and replace if necessary Fiber optical cable connection is reversed Bad cable Wrong cable type Change if necessary. Check Rx and Tx on fiber optic cable Replace with a tested cable Verify that all 10 Mbps connections use a Cat 5 cable Check the port LED or zoom screen in the NMS application, and change setting if necessary Page 339

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No response from the termi-
nal emulation software
Faulty serial cable
Incorrect serial cable
Software settings
Replace the serial cable
Replace serial cable for a pin-to-pin
straight/flat cable
Reconfigure the emulation software con-
nection settings.
Response from the terminal
emulations software is not
readable
Faulty serial cable
Software settings
Replace the serial cable
Reconfigure the emulation software con-
nection settings.
Self-test exceeds 15 seconds
The device may not be cor-
rectly installed.
Remove and reinstall the device. If that
does not help, consult your technical sup-
port representative.
No connection is established
and the port LED is on
Wrong network address in
the workstation
No network address set
Wrong or missing protocol
Faulty ethernet cable
Faulty port
Faulty module
Incorrect initial configuration
Configure the network address in the
workstation
Configure the network address in the
workstation
Configure the workstation with IP protocol
Replace the cable
Replace the module
Replace the module
Erase the connection and reconfigure the
port
Device is in a reboot loop
Software fault
Download and install a working or previ-
ous software version from the console
No connection and the port
LED is off
Incorrect ethernet cable, e.g.,
crossed rather than straight
cable, or vice versa, split pair
(incorrect twisting of pairs)
Fiber optical cable connec-
tion is reversed
Bad cable
Wrong cable type
Check pinout and replace if necessary
Change if necessary. Check Rx and Tx on
fiber optic cable
Replace with a tested cable
Verify that all 10 Mbps connections use a
Cat 5 cable
Check the port LED or zoom screen in the
NMS application, and change setting if
necessary
Problems
Possible Cause
Solution
TL-SG3109/TL-SL3428/TL-SL3452 Gigabit Managed Switch Family CLI Reference Guide
Page 339