Black Box LB1350A, LB1351A manual Troubleshooting

Page 16

Black Box®LB1350A/LB1351A

If the register bit is a 1, the priority is high and if 0, the priority is low.

Thus the DSCP value classifies the packet service level.

When more than one scheme is enabled, priority conflicts are resolved by the following order : 802.1p based priority overrides port based priority and TOS based priority overrides 802.1p based priority

15- TROUBLESHOOTING

Problem

Indication

Corrective Action

 

 

 

 

No power

Power LED not

Check that the power supply cable is firmly

 

lit

connected to the device

and the wall

 

 

power socket.

 

 

 

 

 

Check that the AC input power source is

 

 

between 100 and 240VAC.

 

 

Network problems

No

On the “mode setup switches”, check that

 

communication

S9 is in the UP position. ( converter normal

 

on network

operation mode )

 

 

 

 

 

Reset the device using S9

 

 

Any problem related to port

 

Set device to TEST mode (S8 Down), reset

4 (3) or F/O port

 

device (S9).If problem not solved remain in

 

 

TEST mode and perform troubleshooting.

TP link not working

Link LED not lit

On the “mode setup switch” move S9 to

 

 

the DOWN position, and move it back to

 

 

the UP position after one second.

 

 

 

Check that the connected device is

 

 

working properly at 100Mbps or 10Mbps.

 

 

Check that the connection cable is well

 

 

connected at both ends.

 

 

TP link not working at 100M

Both Link LED

On the “setup mode switches”, check that

when Black Box®LB1350A

and

respective switches

S1

thru S4

are in

LB1351A connected to

100BaseTX LED

down position ( Auto-Negotiation mode )

100Mbps or 10/100Mps

not lit

 

 

 

 

device

 

 

 

 

 

 

 

Interchange between the suspected port

 

 

and another port 1 thru 4

 

 

 

 

Check that the connected device is

 

 

working properly at 100Mbps.

 

 

 

Check the interconnection between the

 

 

Black Box®LB1350A LB1351A and the

 

 

device.

 

 

 

 

 

Use for suspected link the preferred port

 

 

and force it to 100Mbps (S4 up, S5 down)

TP link not working at 10M

Link LED not lit

If suspected port

is 1

thru 3,

move

when the Black

 

respective switch (S1 thru S3)

to up

Box®LB1350A LB1351A

 

position , if port 4 – move S4 up and S5 up

connected to 10M device

 

 

 

 

 

(copper side).

 

 

 

 

 

 

 

Reset the device using S9

 

 

 

 

Check that the connected device is

 

 

working properly at 10Mbps

 

16

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Contents User and Installation Guide FCC Statement Instrucciones DE Seguridad Table of contents Overview Black BoxLB1350A/LB1351A Contents of the Shipping Container Product General Description LB1350A-SCGeneral Description Black BoxLB1350A/LB1351A Parts Identification CommentsInstallation Power ConnectionFiber Optic Connection Twisted Pair Cable ConnectionConfiguration Switches Function Up Position Down CommentsAdvanced Features Port Priority Schemes Troubleshooting Down Specifications Setting Up Management Parameters PrefaceManagement parameters setup screen Console parameters Network parametersSnmp parameters Configuring the Management Station Network ConnectionManaging the Black Box LB1351A Managing with a Terminal Main menuBasic status Advanced status Device’s advanced status consistsDevice control menu Device controlPort control menus Basic port controlAdvanced port control TP port 1 basic controlBasic device control Advanced device controlManagement control menu Broadcast protectionManaging with Snmp Basic device configurationSystem info Advanced device configuration Advanced device configurationBasic port configuration User priority configurationAdvanced port configuration Snmp trapsTraps listed in bottom of screen Troubleshooting Probable CauseEuropean Union Declaration of Conformity