Enterasys Networks Enterasys Gold Distributed Forwarding Engine 4H4284-49 - Manual (Page 50)

Connecting to COM Port for Local Management
3-20 Installation
1. Verify that a link exists by checking that the port RX LED is ON (flashing amber,
blinking green, or solid green). If the RX LED is OFF and the TX LED is not blinking
amber, perform the following steps until it is on:
a. To view the receive and transmit activity on a group of segments, press the
GROUP SELECT switch (see
Figure 3‐11 ) to step to the appropriate group. Each
time the GROUP SELECT switch is pressed, the GROUP LED lights up in
sequence, indicating which Group is selected. On the 4H4284‐49, you can step to
1, 2, 3, or 4 for Groups 1 through 4. The receive and transmit activity for that
group of segments is then indicated by the RX and TX LEDs for each segment.
b. If there are separate fiber‐optic connections on the other device, check the
crossover of the cables. Swap the cable connections if necessary.
c. Verify that the fiber connection meets the dB loss and cable specifications for
multimode cabling, as outlined in the Cabling Guide.
If a link is not established, see Chapter 4 for troubleshooting information before
contacting Enterasys Networks. To contact Enterasys Networks, refer to “Getting Help”
on page xviii for details.
Connecting to COM Port for Local Management
This section describes how to install a UTP straight‐through cable with RJ45 connectors
and optional adapters to connect a PC, a VT series terminal, or a modem to an
Enterasys Networks module to access Local Management. This section also provides the
pinout assignments of the adapters.
What Is Needed
The following is a list of the user‐supplied parts that may be needed depending on the
connection:
• RJ45‐to‐DB9 female adapter
• UTP straight‐through cable with RJ45 connectors
• RJ45‐to‐DB25 female adapter
• RJ45‐to‐DB25 male adapter
With a UTP straight‐through cable with RJ45 connectors and RJ45‐to‐DB9 adapter, you
can connect products equipped with an RJ45 COM port to an IBM or compatible PC
running a VT series emulation software package.
Note: The RJ45 COM port connector is located in approximately the same location on all
DFE-Gold modules. In the following procedures, the 4H4282-49 COM port is shown as an
example in the figures associated with each procedure.