(DRAFT LABEL) ALPHA DRAFT - CISCO CONFIDENTIAL
3-14
Cisco 7204 Installation and Configuration Guide
OL-5101-02
Chapter3 Installing the Cisco 7204
Connecting I/O Controller Cables
Figure3-12 Cisco7204 I/O Controller Connections
Console and Auxiliary Port Connection Equipment
The I/O controller has two EIA/TIA-232 ports: a DCE-mode console port and a DTE-mode auxi liary
port. (Refer to Figure 3-13.) The console port is a DCE DB-25 port for connecting a data terminal, which
you will use to configure the interfaces and bring up the router. The auxiliary port is a DTE DB-25 plug
for connecting a modem or other DCE device (such as a CSU/DSU or othe r rou ter) t o t he Ci sco 7204.
Note Both the console and auxiliary ports are asynchronous serial ports; any devices connected to these ports
must be capable of asynchronous transmission. (Asynchronous is the most common type of serial device;
for example, most modems are asynchronous devices.)
Before connecting a terminal to the console port, configure the terminal to matc h the r outer consol e port
as follows: 9600 baud, 8 data bits, no parity, 2 stop bits (9600 8N2). You need an EIA/TIA-232 DCE
console cable to connect the terminal to the console port. After you establish normal rout er opera tion,
you can disconnect the terminal.
You must supply your own interface cable between the auxiliary port and the equipment you a re
connecting. For console and auxiliary port pinouts, refer to the following sections “Console Port
Signals” and “Auxiliary Port Signals.”
2
ETHERNET 10BT
ENABLED
0
2
1
3
LINK
0
1
2
3
FAST SERIAL
EN
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
ENABLED
MII
LINK
RJ45
FAST ETHERNET
0
0
4
1
3
ETHERNET-10BFL
EN
RX
0
1
2
3
4
TX
RX
TX
RX
TX
RX
TX
RX
TX
H7407
MII
EN
RJ45
EN
RJ45
LINK
1O PWR
OK
RJ-45
CPU RESET
FAST ETHERNET INPUT/OUTPUT CONTROLLER
ENABLED
PCMCIA
EJECT
SLOT 0
SLOT 1
FE MII
Auxiliary
port Console
port
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)