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CRS-300 1:10 Redundancy Switch
Connector Pinouts
6.2.5
Balanced G.703 – DB-15F Connector (CRS-325/330/340)
Table 6-8 indicates the pinout for the DB-15F TMI User Data Interface connector (Balanced
G.703): Located at J6 on the CRS-325; J1 on the CRS-330; and P1 on the CRS-340.
Table 6-8. Balanced G.703 Connector
Pin
Signal Description
1*
Tx, Drop Data Input (-)
9*
Tx, Drop Data Input (+)
2
Ground
10
Not Used
3*
Rx, Insert Data Output (-)
11*
Rx, Insert Data Output (+)
4
Ground
12
Drop Data Output (-)
5
Drop Data Output (+)
13
Insert Data Input (-)
6
Insert Data Input (+)
14
Not Used
7
Not Used
15
Not Used
8
Not Used
* Use for all non-Drop and Insert and T2/E2 balanced applications.
TMI User Data Interface:
Balanced G.703 connector
Name
DDI–
DDI+
GND
IDO–
IDO+
GND
DDO–
DDO+
IDI–
IDI+
6–7
Revision 16
MN/CRS300.IOM
Direction
In
In
Out
Out
Out
Out
In
In
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