User's Manual

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Cisco 3200 Series Mobile Access Router Hardware Guide
OL-5816-04
Chapter 1 Mobile Access Router Card (MARC)
MARC Component Systems
The FastEthernet 0/0 port on the MARC is a 10/100 Fast Ethernet router port. The FastEthernet ports on
the 4-port FESMIC and the 2-port FESMIC are 10/100 Fast Ethernet switch ports. The routing features
supported on the MARC cannot be configured on the FESMIC ports.
Console, Auxiliary, LED Signals, and Power
Figure 1-3 shows the 34-pin multifunction header that provides console, AUX and GPS connectivity.
A small footprint +3.3V/+12V dual RS-232 transceiver drives the RS-232 lines. It supports full
modem control signals DTR, CD, RTS, and CTS. The transceiver is connected directly to SMC-1 on
the MPC8250. The serial baud rates can be between 9,600 to 115,000bps.
The same +3.3V/+12V dual RS232 transceiver—Maxim’s MAX3209E—drives the RS-232 lines. It
supports full modem control signals DTR, CD, RTS, and CTS. The transceiver is connected directly to
SCC-1 on the MPC8250. The serial baud rates can be between 9,600 and 115,000bps.
Figure 1-3 MARC Multifunction Header Pin Locations
Console Connections
You can configure the console interface by using IOS command line interface (CLI) commands. The
console interface and the AUX port can be accessed simultaneously. For example, you can connect a
terminal to the console interface and an external modem or a GPS to the AUX port.
The console port signals are provided through the multifunction header:
• Asynchronous serial DCE
• 1.2 Kbps, 2.4 Kbps, 4.8 Kbps, 9.6 Kbps, 19.2 Kbps, 38.4 Kbps, 57.6 Kbps, and 115.2 Kbps baud
rates
• Support full modem control DTR, DSR, RTS, and CTS signals
4 Unused Terminated
9 Unused Terminated
5 Reserved Do not use
10 Reserved Do not use
Table 1-1 MARC Ethernet Header Pin Assignments (continued)
Pin Signal Description
74522
Board edge Board edge
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18
Table 1-2 MARC Multifunction Header Console Interface Pin Assignments
Pin Signal Description
1 CON_RTS_OUT Request To Send
18 CON_DTR_OUT Data Terminal Ready