Enterasys Networks Enterasys Diamond Distributed Forwarding Engine 7KR4297-04 - Manual (Page 33)

Connecting to COM Port for Local Management
Matrix DFE-Platinum Series Module Installation Guide 3-11
3. At the other end of the fiber‐optic cable, attach the SC connector to the other device.
4. 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, there is no link. Perform the following steps until it
is on:
a. Check that the device at the other end of the link has power turned on and is compatible.
b. Verify proper crossover of fiber strands between the port on the module and the fiber‐
optic device at the other end of the fiber‐optic link segment.
c. Verify that the fiber‐optic cable meets the specifications outlined in Appendix A for the
installed Ethernet expansion module.
To remove the SC cable connector from the interface port, carefully pull the connector out of the
port. It may need to be loosened by gently moving from side to side to release the latching keys.
If a link has not been established, refer to Chapter 4 for LED troubleshooting details. Refer to
“ Getting Help ” on page xiv for details on contacting Enterasys Networks for support.
Connecting to COM Port for Local Management
This section describes how to install a UTP straight‐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‐cable with RJ45 connectors
Figure 3-4 SC Fiber-Optic Cable Connection
1 SC cable connector 4 Receive LED (RX)
2 Latch keys (bottom of SC connector) 5 Transmit LED (TX)
3 SC port interface connector