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User Guide 

Troubleshooting 

The following table provides troubleshooting help. The topics are arranged 
in the order in which they should be executed in most situations. If you are 
unable to resolve the problem after following these instructions, please 
contact technical support for further assistance (see page 12). 

Symptoms/Cause

 

Remedy

 

All LEDs on LEX unit are 
off. 

Cause: 

The LEX unit is not 
receiving power from the 
adapter

 

1.  Ensure that a power adapter is connected 

to the LEX unit.

 

2.  Check that the adapter is connected to a 

live source of electrical power.

 

All LEDs on REX unit are 
off. 

Cause: 

The REX unit is not 
receiving power from the 
adapter

 

1.  Ensure that a power adapter is connected 

to the  REX unit.

 

2.  Check that the adapter is connected to a 

live source of electrical power.

 

Link LEDs on LEX unit and 
REX unit are off. 

Cause:  

There is no connection 
between the LEX unit and 
the REX unit.

 

1.  Ensure that a fiber-optic cable with 

crossover is connected between the LEX 
unit and the REX unit. 

2.  Connect a short fiber-optic crossover 

patch cord between the LEX unit and the 
REX unit. Recheck the operation of the 
system. 

Link LED on LEX unit is on;
Host LED on LEX unit is off.

Cause: 

a)  The computer is not 

functioning. 

b)  The LEX unit is not 

connected to the 
computer. 

c)  The computer does not 

support USB hubs. 

d)  The USB 2.0 Ranger is 

malfunctioning. 

1.  Disconnect all USB devices from the REX 

unit. 

2.  Disconnect the LEX unit from the 

computer. 

3.  Disconnect and then reconnect the power 

adapter to the USB 2.0 Ranger. 

4.  Reconnect the LEX unit to the computer. 

5.  In the Universal Serial Bus controllers 

section of Device Manager, check that 
the USB 2.0 Ranger is recognised as a 
“Generic USB Hub”. 

6.  If the USB 2.0 Ranger is not recognised, 

contact technical support for assistance. 

  

Summary of Contents for USB 2.0 Ranger 442

Page 1: ...USB 2 0 Ranger 442 and USB 2 0 Ranger 444 User Guide USB 2 0 Ranger 442 Model Shown Powered by ExtremeUSB ...

Page 2: ...USB 2 0 Ranger 442 or USB 2 0 Ranger 444 in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CE Statement We Icron Technologies Corporation declare under our sole responsibility that the USB 2 0 Ranger 442 and USB 2 0 Ranger 444 to which this declaration relates are in conformity with European Standard...

Page 3: ...talling the LEX unit 5 Installing the REX unit 5 Connecting the LEX unit to the REX unit 5 Checking the Installation 6 Connecting a USB Device 6 Troubleshooting 7 Specifications 9 Limited Hardware Warranty 11 Hardware Remedies 11 Limitation of Liability 11 Obtaining Warranty Service 12 Contacting Technical Support 12 i ...

Page 4: ...USB 2 0 Ranger 442 and USB 2 0 Ranger 444 Notes ii ...

Page 5: ...Ranger User Guide Local EXtender LEX unit Remote EXtender REX unit AC power adapter 2 units USB cable 2m long To complete the installation you will also require the following items that are not included with the product USB compatible computer USB device 2 strand fiber optic cable with Duplex LC connectors if using surface cabling OR 2 strand fiber optic cabling with two information outlets and tw...

Page 6: ...p to 10km from the host computer The USB 2 0 Ranger is composed of two individual units the LEX unit and the REX unit Note that there are no physical differences between the Ranger 442 and Ranger 444 units The only difference is the Ranger 442 units ship with multimode SFP modules supporting a maximum reach of 500m and the Ranger 444 units ship with singlemode SFP modules supporting a maximum reac...

Page 7: ...REX unit allows you to connect up to four USB devices Additional devices may be connected by attaching a conventional USB hub to the REX unit The REX unit is powered by an external AC adapter Front View 6 5 Rear View 1 2 3 4 3 4 3 4 3 4 1 Power LED 2 Power connector 3 Device LEDs 4 Device Ports USB Type A 5 Link LED 6 Link Port Duplex LC 3 ...

Page 8: ...ng subsystem must provide a duplex connection with crossover and must be terminated with Duplex LC connectors at both ends Fiber optic cable USB USB LEX REX cable cable s USB device s computer AC power adapters USB Cables USB cables have two distinct connectors The Type A connector is used to connect the cable from a USB device to the Type A port on a computer or hub The Type B connector is used t...

Page 9: ...lug the power adapter into a suitable AC outlet 3 Connect the power adapter to the LEX unit 4 Plug the Type B connector on the USB cable included into the Host port on the LEX unit 5 Plug the Type A connector on the USB cable into a USB port on the host computer NOTE The host computer must be equipped with an EHCI USB 2 0 host controller Support for OHCI UHCI USB 1 1 host controllers is not provid...

Page 10: ...fiber optic cable including patch cords must not exceed 10 000 meters NOTE The cabling must provide a duplex connection with crossover and must be terminated with Duplex LC connectors at both ends Checking the Installation 1 Check that the Power LEDs on the LEX unit and the REX unit are both on 2 Check that the Link LEDs on the LEX unit and the REX unit are both on 3 Check that the Host LED on the...

Page 11: ...ink LEDs on LEX unit and REX unit are off Cause There is no connection between the LEX unit and the REX unit 1 Ensure that a fiber optic cable with crossover is connected between the LEX unit and the REX unit 2 Connect a short fiber optic crossover patch cord between the LEX unit and the REX unit Recheck the operation of the system Link LED on LEX unit is on Host LED on LEX unit is off Cause a The...

Page 12: ...s operate properly the first device may not be compatible with the USB 2 0 Ranger Contact technical support for assistance All LEDs on both the LEX unit and REX unit are on but the device does not operate correctly Cause a The USB device is malfunctioning b The computer does not recognise the USB device c The application software for the device is not operating d The USB 2 0 Ranger is malfunctioni...

Page 13: ... Type B LEX unit connector downstream 1 x Duplex LC REX unit connector upstream 1 x Duplex LC REX unit connector downstream 4 x USB Type A LEX unit dimensions 107 mm x 84 mm x 34 mm 4 25 x 3 4 x 1 4 LEX unit weight 0 3 kg 0 6 lb REX unit dimensions 114 mm x 106 mm x 38 mm 4 5 x 4 2 x 1 5 REX unit weight 0 3 kg 0 6 lb Total system shipping weight 1 1 kg 2 4 lb Temperature range 4 C to 40 C Ranger 4...

Page 14: ...er 444 Link cable not included Two strands of 9 125µm SMF cabling are required The cabling subsystem must provide a duplex connection with crossover and must be terminated with Duplex LC connectors at both ends Regulatory testing FCC CE Class A 10 ...

Page 15: ...itness for a particular purpose and non infringement of third party rights with respect to the hardware Icron Technologies Corporation dealer agent or employee is authorized to make any modification extension or addition to this warranty Under no circumstances will Icron Technologies Corporation its suppliers or licensors be liable for any costs of procurement or substitute products or services lo...

Page 16: ...be shipped to you at Icron Technologies Corporation s expense not later than thirty days after Icron Technologies Corporation receives the defective product Address the returned product to RMA Coordinator Icron Technologies Corporation 4664 Lougheed Highway Suite 275 Burnaby BC V5C 5T5 Canada Tel 604 638 3920 Contacting Technical Support If you require technical assistance send an e mail message t...

Page 17: ...Icron Technologies Corporation 4664 Lougheed Highway Suite 275 Burnaby BC V5C 5T5 Canada Tel 604 638 3920 Fax 604 638 3930 www icron com 90 00231 A01 ...

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