Cabletron Systems MT8-MIM Spezifikationen Seite 100

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Token Ring Media
9-14 Connector Types
The wires of the STP cable must be organized in the RJ45 connector properly,
based upon the USOC specification and the IEEE 802.5 specification. This
organization of the wires at the connector is known as a pinout. The proper
pinout for the Token Ring shielded RJ45 connector is given in Table 9-4, below. In
addition to arranging the cables properly, the braided shield of the STP cable must
be connected to the metal shield of the RJ45 connector.
The USOC specification orders the pairs in a four-pair cable into the pinout
shown in Figure 9-7, below. The RJ45 connector in the figure is being viewed from
the contact blade end, with the locking clip up. The contact blades of the RJ45
connector are numbered one through eight from left to right for purposes of
identification.
Figure 9-7. USOC Pair Organization - STP
Table 9-4. IEEE 802.5 RJ45 Pinouts for STP
Wire Color
IEEE 802.5
Signal
RJ45 Pinout
Black TX - 3
Red RX + 4
Green RX - 5
Orange TX + 6
BK RE GR OR
Pair 1
Pair 2
Pair 4
Pair 3
1845n22
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