Black Box 4-Port USB 2.0 CAT5 Extender with Remote Power, IC400a manual Troubleshooting

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Chapter 4: Troubleshooting

4. Troubleshooting

4.1 Problems/Causes/Solutions

Table 4-1. Problems/Causes/Solutions.

Problem

Cause

Solution

 

 

 

All LEDs on the local

The local unit is not

1. Make sure that the USB connection between the

unit are off.

receiving enough power

local unit and host computer is properly installed.

 

from the USB port or the

 

 

(optional) local unit AC

2. Move the USB connector to another USB port on the

 

adapter.

host computer.

 

 

 

All LEDs on the remote unit

The remote unit is not receiving

1. Make sure that the AC power adapter is properly

unit are off.

power from the AC adapter.

connected to the remote unit.

 

 

2. Check that the AC adapter is connected to a live source

 

 

of electrical power. Check that the remote unit power

 

 

LED is lit.

Link LEDs on the local unit

There is no connection between

1. Make sure that CAT5 cable is connected between

and remote unit are off.

the local unit and the

the local unit and the remote unit. CAT5 or better

 

remote unit.

UTP with a straight-through connector and no crossovers,

 

 

and 8-pin RJ-45 connectors are used at both ends.

 

 

2. If the CAT5 cable is defective, connect a short CAT5

 

 

patch cord between the local unit and the remote

 

 

unit to determine if the original CAT5 cable is defective.

 

 

 

Link LED on the local

1. The host computer is not

1. Disconnect all USB devices from the remote unit.

unit is on, Host LED on the

powered on.

 

local unit is off.

 

2. Disconnect the local unit from the computer.

 

2. The remote unit is not

 

 

connected to the computer

3. Disconnect the remote unit from the AC power adapter.

 

(when used with the

 

 

optional local unit AC

4. Reconnect the local unit to the computer.

 

adapter).

 

 

3. The computer does not

5. Reconnect the remote unit to the AC power adapter.

 

support USB hubs.

 

 

 

6. In the Universal Serial Bus Controllers section of Device

 

4. The extender is

Manager, check that the extender is recognized as a

 

malfunctioning.

“Generic USB Hub.”

 

 

 

The extender units were

The remote unit is in

1. Recover/resume the operating system from suspend/

working, but the host LED

suspend mode. The operating

standby mode (see your operating system’s

on the local/remote

system may put the extender

documentation).

units are suddenly blinking.

in suspend mode when

 

 

the computer is put into a

2. Attach a USB device to the extender.

 

suspend/standby state or when

 

 

no USB devices are attached.

 

 

 

 

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Contents Port USB 2.0 CAT5 Extender with Remote Power CE Statement Port CAT5 USB 2.0 ExtenderIC Statement NOM Statement Trademarks Used in this Manual Table of Contents Specifications Overview Front panel of the local unit Front panel of the remote unit Remote unit Front and Back PanelsApplication Typical ApplicationInstallation Connecting a USB Device Troubleshooting Problems/Causes/Solutions TroubleshootingIf the second device does not operate properly, the first Shipping and Packaging Contacting Black BoxTechnical Glossary T568A wiringBlackbox.com Blackbox.com Blackbox.com About Black Box Black Box Tech Support FREE! Live /7