Cabletron Systems MT8-MIM Specifikace Strana 103

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Connector Types 9-17
Token Ring Media
The connection of individual wires of a UTP cable to the pins of an IEEE 802.5
compliant RJ45 connector are given in Table 9-5.
Fiber Optics
Straight-Tip
Fiber optic connectors in Token Ring environments must meet the IEEE 802.5j
specifications, which requires the use of Straight-Tip (ST) connectors for any fiber
optic cabling strand. The ST connector is a locking, keyed connector. The ST
connector may either be male or female. Male ST connectors are typically attached
to cable strand ends, while the female ST connectors are usually found on
networking and cable management hardware.
Figure 9-10. ST Connectors
Table 9-5. IEEE 802.5 RJ45 Pinout for UTP
Wire Color
IEEE 802.5
Signal
RJ45 Pinout
White/Orange TX - 3
Blue RX + 4
White/Blue RX - 5
Orange TX + 6
P
l
a
s
t
i
c
H
o
u
s
i
n
g
Cladding
Hollow Center
Channel
Locking Key
Key Guide
Channel
Keyed
Connector
Side Elev. Front Elev.
Solid Glass
Center
1845n20
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