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Cables, Pins and Connectors
Each of the ATM ports on the 6412M-25-TP module connects to other ATM devices
using an 8-pin female RJ-45 connector. The sections below describe the male RJ-45
plug and the twisted-pair cables that attach to this connector.
RJ-45 Connector
The RJ-45 connector is the 8-pin female connector on the CELLplex 4000 that attaches
to UTP Category 3, 4, or 5 cable or STP category 1, 1A, 9, or 9A cable. Table 2-4 lists
the signal name associated with each pin on this connector, and Figure 2-6 shows how
the pins are numbered.
Figure 2-6. RJ-45 Connector
Table 2-4. RJ-45 Connector-Pin Signal Assignments
Pin Number Signal Name
1 RD+
2 RD-
3-4-5-6 Frame Ground
7 TD+
8 TD-
Chapter 2. Installation 2-15