Marc Power Requirements; Marc Router Signals; Fast Ethernet Signals On The Marc - Cisco 3200 Series Hardware Reference Manual

Chapter 3 Mobile Access Router Card

MARC Power Requirements

The MARC uses +3.3-V, +5-V, and +12-V power sources. Internal on-board DC-to-DC conversion
circuitry generates 1.8 V/1.5 A from the +3.3-V power source.
Table 3-1
Voltage
+5.0 V
+12.0 V
+3.3 V

MARC Router Signals

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.
Non-Cisco MIC cards cannot use PCI signals. The use of PCI signals by non-Cisco cards causes
Note
unpredictable results. You cannot add third-party devices that might attempt to communicate with the
SMIC through the ISA or PCI bus.
The signals are delivered through the shared, 34-pin multifunction header and the 10-pin Ethernet
header. LED signals and 5 V of power are also provided through the shared, 34-pin multifunction header.

Fast Ethernet Signals on the MARC

There is one fixed Fast Ethernet port on the MARC. A Cisco router identifies a Fast Ethernet interface
address by its slot number and port number, in the format slot/port. The slot/port address of a Fast
Ethernet interface on the MARC is 0/0.
The Fast Ethernet port signals are in compliance with IEEE 802.3. They are provided through the 10-pin
Ethernet header, which supports the following:
•
•
•
•
•
•
•
•
•
The FastEthernet 0/0 port on the MARC is a Fast Ethernet router port. The FastEthernet ports on the
4-port FESMIC and the 2-port FESMIC are Fast Ethernet switch ports. The routing features supported
on the MARC cannot be configured on the FESMIC ports.
OL-5816-10
MARC
Voltages
Current
0.3 A
0.1 A
2.0 A
Autonegotiation and parallel detection MII interface with extended register capability for
10/100BASE-TX connection
Full-duplex and half-duplex modes
3.3-V operation low power consumption (300 mW typical)
Low-power sleep mode
10BASE-T and 100BASE-TX using a single Ethernet connection
Robust baseline-wander correction performance
100BASE-FX fiber-optic capabilities
Standard carrier signal multiple access collision detect (CSMA/CD) or full-duplex operation
Integrated, programmable LED drivers
Power
1.5 W
1.2 W
6.6 W
Cisco 3200 Series Router Hardware Reference
3-3