Allied Telesis SwitchBlade x3112 - Manual (Page 129)

SwitchBlade x3112 Installation Guide
129
For automatic MDIX detection to work successfully, the remote device
connected to a port must also support the feature. If it does not, a port on a
line card defaults to MDIX. This may require the use of a crossover cable.
Here are guidelines to choosing straight-through or crossover cabling for
the ports:
 You may use straight-through cables on ports that are connected
to network devices that operate at 1000 Mbps.
 You may use straight-through or crossover cables on ports that are
connected to network devices that support automatic MDIX
detection and that operate at 10 or 100 Mbps.
 You must use straight-through cables on ports that are connected
to network devices that have a fixed wiring configuration of MDI
and that operate at 10 or 100 Mbps.
 You must use crossover cables on ports that are connected to
network devices that have a fixed wiring configuration of MDIX and
that operate at 10 or 100 Mbps.
Connecting
Cables to the AT-
SBx31GT40 Line
Card
Here are a few additional guidelines to connecting cables to ports on the
AT-SBx31GT40 Line Card:
 The ports require the RJ point 5 cable connector shown in Figure 83.
Figure 83. RJ Point 5 Cable Connector for AT-SBx31GT40 Line Card
 To connect a cable to a port in the top role on the line card, orient the
connector with the release tab on top. To connect a cable to a port in
the bottom role, orient the connector with the release tab on the
bottom. Refer to Figure 84 on page 130.
 To remove a cable from a port, pull gently on the release tab and slide
the cable connector from the port.
Note
Patch cables for the AT-SBx31GT40 Line Card, in lengths of 1 meter
and 3 meters with RJ point 5 and RJ-45 connectors, are available
from Allied Telesis. Contact your Allied Telesis sales representative
for information.