The Interface
       

Pinouts and cables for telecomms

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RJ 45 connector

 
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The RJ45 connector is used for several functions from UTP networking , Basic Rate ISDN , Primary ISDN and 2Mb leased line presentation . Each use is detailed as follows.
 

Orckit and Martis 120 Ohm presentation.

RJ45 connector
RJ45 PLUG DIRECTION G.703 - 120 Ohm   To MCP
PIN COLOUR ORKIT 15 Pin MARTIS 9 Pin   ORKIT 9 Pin

1 WHITE TX -> 1 1   1
2 ORANGE TX -> 9 2   6

4 WHITE <- RX 3 4   3
5 BLUE <- RX 11 5   8
The Orckit 9 Pin referred to above is the Main cable pair connector and is included here in case I forget to put it somewhere else !!!!
 
     

2Mb Presentation using Martis Adapter

UTP / 10BaseT Rollover cable required.
 
RJ45 MODEM END   RJ45 CUSTOMER END

1   3
2   6
3   1
4   4
5   5
6   2
7   7
8   8
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  If you find this useful and have information to add email Martin Ryan. All contributions , queries and constructive criticisms are welcome.  
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