Foundry Networks IronPoint 200, Руководство по установке

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Foundry IronPoint 200 Installation Guide
B-2 © 2007 Foundry Networks, Inc. April 2007
100BASE-TX/10BASE-T Pin Assignments
Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections:
100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable
for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not
exceed 100 meters (328 feet).
The RJ-45 port on the access point is wired with MDI pinouts. This means that you must use
crossover cables for connections to PCs or servers, and straight-through cable for connections to
switches or hubs. However, when connecting to devices that support automatic MDI/MDI-X pinout
configuration, you can use either straight-through or crossover cable.
Data is carried on the standard two wire pairs (pins 1, 2, 3, and 6), and PoE power is supplied using
the two previously spare pairs (pins 4, 5, 7, and 8).
Straight-Through Wiring
Because the 10/100 Mbps port on the access point uses an MDI pin configuration, you must use
“straight-through” cable for network connections to hubs or switches that only have MDI-X ports.
However, if the device to which you are connecting supports auto-MDIX operation, you can use
either “straight-through” or “crossover” cable.
Figure B-2. Straight-Through Wiring
Pin MDI Signal Name
1 Transmit Data plus (TD+)
2 Transmit Data minus (TD-)
3 Receive Data plus (RD+)
4 GND (Positive V
port
)
5 GND (Positive V
port
)
6 Receive Data minus (RD-)
7 -48V feeding power (Negative V
port
)
8 -48V feeding power (Negative V
port
)
Note: The “+” and “-” signs represent the polarity of the wires that
make up each wire pair.
White/Orange Stripe
Orange
White/Green Stripe
Green
1
2
3
4
5
6
7
8 1
2
3
4
5
6
7
8
EIA/TIA 56 8 B RJ-45 Wiring Standard
10/100BASE-TX Straight-through Cable
End A
End B
Blue
White/Blue Stripe
Brown
White/Brown Stripe