EIR203 1308qsg-1/2
© 2008 by B&B Electronics. All rights reserved.
EIR203 Series Quick Start
Guide
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.
Package Contents
• EIR203 Series Industrial, Unmanaged, Ethernet Switch
• Quick Start Guide (One per shipment)
• Power Terminal Block (installed)
Attach Power Leads
• Fiber Optic Dust Covers (installed on fiber optic models)
External Supply Required
If any item is missing or damaged, contact B&B Electronics
for a replacement
Warning: Work Safe – Equipment
damage or electrical shock hazard
exists. DO NOT ATTACH OR REMOVE
LEADS WITH THE POWER SUPPLY
ENERGIZED!
Front Panel
EIR203 (1 Fiber, 2 RJ-45)
EIR203 (3 Fiber)
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.
1
2
3
3
4
5
6
Power Terminal Block
PWR LED
Fiber Optic SPD LED
Fiber Optic LINK LED
Fiber Ports
2 Position, Removable
ON When Power Applied
Normally OFF (100BaseFx)
ON When Fiber Port Linked
Number and type depends on Model
Number depends on model
On when RJ45 Port Linked
Flashes When Data Transmitted
On if 100 mbps
NOTE: For replacement Terminal Block order Part # 7444.
RJ45 Ports
RJ45 LINK LED
Attach RJ45 Cable
6
RJ45 SPD LED
MDI Cable Pinout
DIN Rail Mounting
Pin
Signal
1
Tx+
2
Tx-
Female RJ45
3
6
Rx+
Rx-
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.
MDI-X Cable Pinout
Pin
1
2
Signal
Rx+
Rx-
3
Tx+
6
Tx-
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European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland
+353 91 792444 Fax +353 91 792445
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