CHAPTER
3-1
Cisco 3200 Series Router Hardware Reference
OL-5816-10
3
Mobile Access Router Card
The Mobile Access Router Card is one component of the Cisco 3200 Series Mobile Access Router. It
includes the host processor, memory, and headers for the Fast Ethernet, console, and auxiliary signals
for the router. Additional components provide power and link interfaces to the MARC. For example, the
4-port Serial Mobile Interface Card (SMIC) provides up to four Smart Serial interfaces. The exact
configuration of your router will vary, depending on how your vendor configured it.
Note This section provides basic information about the MARC hardware for the purpose of performing simple
troubleshooting tasks, such as reconnecting a loose cable. To solve more difficult problems, please
contact your vendor.
The key features of the MARC include the following:
• MPC8250 processor running 210 MHz at the CPU core, 150 MHz at the CPM core, and 60 MHz on
the Motorola 60x bus.
• 32 MB of flash memory.
• 128 MB of synchronous DRAM.
• 10/100 Fast Ethernet, full-duplex connection with autonegotiation.
• Console connection with hardware/software flow control.
• Asynchronous, EIA/TIA-232 serial connection with a 5 V auxiliary power supply for Global
Positioning System (GPS) and auxiliary (AUX) devices.
• The AUX port speed can be configured as 2400, 4800, 9600, 19200, 38400, 57600, or 115200 bps.
Use the line aux linenumber speed command to modify the speed of the port.
• A 32-bit PCI bus, version 2.1, running at 25 MHz.
• Supports Zeroization when this featured is configured on the router.
Caution Zeroization is a feature that erases all potentially sensitive information from the router. Zeroization is
configured through the command-line interface (CLI) and activated through an actuator attached to the
AUX port, such as a push button. Zeroization is disabled by default on the Cisco 3200 Series router.
When Zeroization is not configured on the router, the AUX port functions as a modem port or a terminal
port. When declassification is enabled through the CLI, we recommend that you do not use the AUX port
for any other function than declassification. This is because there is no way for the router to reliably
determine if a device attached to the AUX port is an actuator; therefore, any device attached to the AUX
port could potentially trigger declassification.