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Parker Eurotherm I/O Processor Module L5311


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Parker Eurotherm I/O Processor Module L5311




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Frequently Asked Questions about L5311

Where is the L5311 held?
The L5311 is a Link card that is desgined to be held in a Link Station Rack.  When the L5311 is plugged into the Link Rack, it communicates and transmitted data across the Link network.
What are the functions of the black and blue points on the outside of the L5311?
There are two black and two blue points on the exterior of the L5311. The black points function as a RCV while the blue points are XMT. The first two points are primary points while the second two are secondary points.
Does AX Control provide a warranty on the L5311?
AX Control will provide a two year warranty for the L5311. If your device breaks within its warranty, AX Control will either complete any repairs, provide you with a new device, or give you a full refund. 
What is the difference in appearance between the L5311 Rev 3.0 and the L5311 Rev. 2.1?
The L5311 Revision 3.0 features fiber ports that allow the user to connect the fiber directly to the ports during installation. The older L5311 Rev. 2.1 has four plug ports which accept a customized plug that can attach to the fiber optic cable. 

Product Description


The L5311 Real Time Network LinkCard Plug-in Module was built, developed, and produced by the Parker Eurotherm company. This RTN card is an interface that meant to work between a Link component and a fiber optic network system. When plugged into either a LinkRack or a LinkStation, the L5311 is able to communicate with other modules that are plugged into the Link network by a 1000 micron acrylic fiber optic cable.  

The L5311 module comes equipped with two integrated sets of receivers and transmitters in order to support the primary and secondary fiber optic channels. The intensity of the transmission is able to be selected in three different intensity levels (Low level, Medium level, and High level), and activated by the toggle switches, though it depends on the distance to the Link nodes. The Low toggle (in the center position) extends up to 20 meters, or 66 feet, the Medium toggle (on the left) reaches between 20 to 40 m, or 66 to 132 ft, and then the High toggle (on the right) has a range of 40 to 60 m, or 132 to 198 ft. The wire terminations are the standard Thomas & Betts connectors: red to indicate transmit and then black to indicate receive.

The L5311’s physical product dimensions give it a height of 120 millimeters, or 4.72 inches, a width of 32 mm, or 1.25 in, a depth of 90 mm, or 3.54 in, and a weight of 0.14 kilograms, or 0.3 pounds. This module’s prime operating temperature is between 0 to 50 degrees Celsius.

L5311 Technical Specifications

Dimensions 4.7H x 1.25W x 3.54D inches, 0.3lbs
Manual Number HA353795
Manufacturer Eurotherm Parker SSD
Model RTN Acrylic Link Card
MPN L5311
Product Type Link Card
Series SSD Link / Eurotherm Drives
Voltage 5 VDC

L5311 Documents

  • L5311-Issue 1
  • L5311-Issue 2
  • L5311-Issue 2.1
  • L5311-Issue 3
  • L5311-Rev. 2.0
  • L5311-Rev. 2.1
  • L5311-Rev. 3.0
  • L5311-Rev. 4.1

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty.
All PLCs and HMIs: 3 years
All AC/DC and Servo Drives: 2 years
All Motors: 1 year
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