User's Manual

6-3
Cisco 3200 Series Router Hardware Reference
OL-5816-09
Chapter 6 Wireless Mobile Interface Cards (WMICs)
The WMIC interfaces are configured through a WMIC console port. In contrast, the Serial Mobile
Interface Card (SMIC) and FESMIC communicate with the router through the PC/104-Plus bus. The
interfaces are configured through the router console port, and all of the router and FESMIC Fast Ethernet
ports are identified by using the slot/port format.
The WMIC runs an independent IOS image and when it is configured, the link between the WMIC and
the router forms an internal LAN. In standard configurations, a WMIC Fast Ethernet port is never
brought out to the end cap.
The WMIC console port is brought out to the corresponding RJ-45 port on the I/O end cap, replacing a
Fast Ethernet port. If the router includes one WMIC, the RS-232 WMIC console port replaces a Fast
Ethernet port on the end cap. If the router includes two WMICs, two WMIC RS-232 console ports
replace two Fast Ethernet ports on the end cap.
Note Currently, even if the router contains zero WMICs, in standard configurations a maximum of three Fast
Ethernet ports are brought out to the end cap. Unused RS-232 ports are sealed.
Fast Ethernet Signals on the WMIC
The Fast Ethernet signals are delivered through a 10-pin header. LED signals and RS-232 console signals
are provided through the 24-pin multifunction header.
There is one set of fixed Fast Ethernet signals on the WMIC. The Fast Ethernet port signals are in
compliance with IEEE 802.3. They are provided through the Ethernet headers, which support the
following:
• Auto-negotiation for 10/100BASE-TX connection
• Full-duplex and half-duplex modes
• Low-power sleep mode
• 10BASE-T and 100BASE-TX using a single Ethernet connection
• Robust baseline wander correction performance
• Standard carrier signal multiple access collision detect (CSMA/CD) or full-duplex operation
• Integrated LED drivers
Note If Auto-MDIX is disabled, when connecting to Ethernet switches or repeaters a straight-through cable
can be used. When connecting to compatible workstations, servers, and routers, a crossover cable should
be used. If Auto-MDIX is enabled, either a straight-through or crossover cable can be used can be used
to make the connection, as the router automatically changes the signals on the pins to compensate.