Cisco CATALYST 5500 9 PORT GIGABIT ETHERNET SWITCH MODULE Specification Guide
Connecting Modules
Catalyst 5000 Family Module Installation Guide
3-16
Connecting FDDI and CDDI Modules
This section describes how to connect Fiber Distributed Data Interface (FDDI) and Copper
Distributed Data Interface (CDDI) cables to their respective switching modules.
Distributed Data Interface (CDDI) cables to their respective switching modules.
The fiber-optic cables and unshielded twisted-pair (UTP) connect directly to the FDDI or
CDDI module ports. FDDI and CDDI modules use one integrated transmit/receive cable
for each physical interface (one for PHY A and one for PHY B). You need one FDDI or
CDDI cable for a single-attachment connection and two cables for a dual-attachment
connection. For cable and connector descriptions, see Chapter 2, “Installation Preparation.”
CDDI module ports. FDDI and CDDI modules use one integrated transmit/receive cable
for each physical interface (one for PHY A and one for PHY B). You need one FDDI or
CDDI cable for a single-attachment connection and two cables for a dual-attachment
connection. For cable and connector descriptions, see Chapter 2, “Installation Preparation.”
This section also provides instructions for connecting an optical bypass switch to a
dual-attachment FDDI network connection. Because the method of connecting optical
bypass switches varies with different manufacturers’ models, refer to the documentation for
your particular bypass switch for correct connection instructions. If you are installing an
optical bypass switch, see the “Installing an Optical Bypass Switch” section on page 3-19.
dual-attachment FDDI network connection. Because the method of connecting optical
bypass switches varies with different manufacturers’ models, refer to the documentation for
your particular bypass switch for correct connection instructions. If you are installing an
optical bypass switch, see the “Installing an Optical Bypass Switch” section on page 3-19.
Making Single-Attachment Connections
The FDDI and CDDI modules that are connected as a single-attachment station (SAS)
connect to the ring through a concentrator. The FDDI and CDDI modules receive and
transmit the signal through the same physical interface, usually PHY A. Depending on
whether you are connecting to a single-mode or multimode FDDI fiber network or
connecting to a CDDI network, connect the FDDI or CDDI modules as follows:
connect to the ring through a concentrator. The FDDI and CDDI modules receive and
transmit the signal through the same physical interface, usually PHY A. Depending on
whether you are connecting to a single-mode or multimode FDDI fiber network or
connecting to a CDDI network, connect the FDDI or CDDI modules as follows:
•
Single-mode—Connect one single-mode interface cable to the PHY A transmit port and
one to the PHY A receive port. (See Figure 3-10 and Figure 3-11.) Connect the opposite
end of each cable to the concentrator transmit and receive ports as specified in the
concentrator manufacturer’s instructions.
one to the PHY A receive port. (See Figure 3-10 and Figure 3-11.) Connect the opposite
end of each cable to the concentrator transmit and receive ports as specified in the
concentrator manufacturer’s instructions.