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EIR205 1308qsg-1/2 

© 2008 by B&B Electronics. All rights reserved. 

 

 

International Headquarters: 

707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 

815-433-5100 Fax 433-5104  

www.bb-elec.com  [email protected]  [email protected] 

 

European Headquarters:

  Westlink Commercial Park  Oranmore Co. Galway Ireland 

                     +353 91 792444  Fax +353 91 792445  

www.bb-europe.com  [email protected] [email protected]

 

B&B 

ELECTRONICS 

    

QUICK START GUIDE

 

 
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 

Package Contents 

  EIR205 Series Industrial, Unmanaged, Ethernet Switch 

  Quick Start Guide (One per shipment) 

  Power Terminal Block (installed) 

  Fiber Optic Dust Covers (installed on fiber optic models) 

 
If any item is missing or damaged, contact B&B Electronics 
for a replacement 

Front Panel 

Power Terminal Block 

2 Positiion, Removable 

PWR LED 

ON When Power Applied 

RJ45 Ports 

Number Depends on Model 

RJ45 SPD LED 

ON if 100 mbps 

RJ45 LINK LED 

ON When RJ45 Port Linked 

 

 

Flashes When Data Transmitted 

Fiber Optic SPD LED 

Normally OFF (100BaseFx) 

Fiber Optic LINK LED 

On When Fiber Port Linked 

Fiber Ports 

Number and Type Depends on Model 

 

DIN Rail Mounting 

1.  Slide and hold the DIN clip toward the bottom of the 

switch. Angle the top portion of the DIN mount over the 
top of DIN Rail. 

2.  Move the switch so that it is parallel with the DIN Rail. 
3.  Let go of the DIN Clip. The spring should return it to its 

original position.   

Attach Power Leads 

External Supply Required 

Warning: Work Safe – Equipment 
damage or electrical shock hazard 
exists. DO NOT ATTACH OR REMOVE 
LEADS WITH THE POWER SUPPLY 
ENERGIZED! 

1.  Loosen the screw to open the terminal block lead clamp. 
2.  Insert the power lead. TB will accept 12-28 AWG wire. 
3.  Tighten the screw to close the terminal block lead clamp. 

Ensure the clamp holds the lead securely. However, do not 
over tighten.  

NOTE: For Replacement Terminal Block order Part # 7444. 

EIR205 Series Quick Start 

Guide 

Attach RJ45 Cable 

MDI Cable Pinout 

Pin Signal 

1 Tx+ 
2 Tx- 
3 Rx+ 
6 Rx- 

 

 

MDI-X Cable Pinout 

Pin Signal 

1 Rx+ 
2 Rx- 
3 Tx+ 
6 Tx- 

 

1. Auto MDI/MDI-x is 
supported. A straight 
through or cross-over 
cable may be used. 
2. 10/100BaseT auto 
negotiation and full/half-
duplex are supported. 

Female RJ45 

EIR205 (All RJ45) 

EIR205 (1 Fiber, 4 RJ45) 

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