User's Manual

2-4
Cisco 3200 Series Mobile Access Router Hardware Guide
OL-5816-04
Chapter 2 Fast Ethernet Switch Mobile Interface Card (FESMIC)
FESMIC Component Systems
Note The PC/104-Plus standard requires that the PCI bus and the ISA bus utilize keying features in the
standard stacking headers to guarantee proper module installation. On the PCI bus, pin D30 is removed
and the D30 opening is plugged. On the ISA bus, pin C19 and pin B10 are removed, and the C19 and
B10 openings are plugged.
Signals for the FESMIC
Cisco 3200 Series router cards do not support any ISA bus signals. The PCI bus connector supports
communication between Cisco 3200 Series Mobile Access Router cards.
Note Non-Cisco MIC cards cannot use PCI signals. The use of PCI signals by non-Cisco cards causes
unpredictable results. You cannot add third-party devices that might attempt to communicate with the
router through the ISA or PCI bus.
The signals are delivered through 10-pin headers, one set of 10/100 Fast Ethernet signals per header.
LED signals and 5 V of power are provided through the 20-pin LED header.
10/100 Fast Ethernet Signals on the FESMIC
There are 4 fixed 10/100 Fast Ethernet signals on the FESMIC. A Cisco router identifies a 10/100 Fast
Ethernet interface address by its slot number and port number, in the form of slot/port. The slot/port
addresses of the 10/100 Fast Ethernet interfaces on the FESMIC depend on the position of the rotary
switch.
For example, if the rotary switch on the 4-port FESMIC is in position 0, the ports are identified as 1/0,
1/1, 1/2, and 1/3. If the rotary switch on the 2-port FESMIC is in position 0, the ports are identified as
1/0 and 1/1.
The 10/100 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
1 PCI bus 2 20-pin LED header
3 ISA bus 4 Rotary switch
5-8 E0–E3 10/100 Fast Ethernet headers