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Connector data
The MDI/MDO connector is a 25-pin SUB-D male connector (hotshrinked tailed).
Table 4-4
Pin assignment (MDI/MDO cable)
Point on connector
Signal name
Description
1
MDO 4 return
Miscellaneous Discrete Output 4 return,
contact normally open
2
MDO 4 return
Miscellaneous Discrete Output 4 return,
contact normally closed
3
MDO 3 return
Miscellaneous Discrete Output 3 return,
contact normally open
4
MDO 3 return
Miscellaneous Discrete Output 3 return,
contact normally closed
5
MDO 2 return
Miscellaneous Discrete Output 2 return,
contact normally open
6
MDO 2 return
Miscellaneous Discrete Output 2 return,
contact normally closed
7
MDO 1 return
Miscellaneous Discrete Output 1 return,
contact normally closed
Figure 4-10 MDO circuit
7
5
3
1
20
8
18
6
16
14
2
4
Figure 4-11 MDI/MDO connector
14
1
13
25
System cabling
External cable installation
MDI/MDO interface
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4-12
Alcatel-Lucent – Internal
Proprietary – Use pursuant to Company instruction
365-313-103R8.0
Issue 2
July 2009
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