User`s guide

FDDI Dual-Attached Intelligent Module User Guide Page B-1
APPENDIX B
CABLING INFORMATION
B.1 CABLES AND CONNECTORS
The 3F00-01 and 3F55-01 use standard fiber optic cables for connecting
the MIC A and MIC B cables. The Optical Bypass Switch (OBS) uses an
RJ-11 connector (an AMP 6-pin shielded modular plug for the OBS is
recommended.) Pinouts for the connector at the end of the OBS cable are
provided in Table B-1 below.
Figure B-1 Pin Positions for OBS Cable
Table B-1 OBS Connector Pin Assignments
RJ-11 Pin Assignment
1 + 5 Secondary Switch
2 + 5 Primary Switch
3 Ground Primary Switch
4 Ground Secondary Switch
5 Common to Pin 6
6 Common to Pin 5
1 2 3 4 5 6
6
1
1
6
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