5-2
Cisco 1800 Series Routers (Modular) Hardware Installation Guide
OL-5876-03
Chapter 5 Cable Information and Specifications for Cisco 1800 Series Routers (Modular)
Preparing to Connect to a Network
The default parameters for the console port are 9600 baud, 8 data bits, no parity, and 1 stop bit. The
console port does not support mode control.
For cable and port pinouts, see
Cisco Modular Access Router Cable Specifications
.
Auxiliary Port Connections
The router has an EIA/TIA-232 asynchronous serial auxiliary port (RJ-45) that supports flow control.
Depending on the cable and the adapter used, this port will appear as a DTE or DCE device at the end
of the cable.
For connection to a modem, your router is provided with an RJ-45-to-DB-9 cable and a DB-9-to-DB-25
adapter.
For detailed information about connecting devices to the auxiliary port, see the
“Connecting to the
Auxiliary Port” section on page 6-4
of the
“Cable Connection Procedures for Cisco 1800 Series Routers
(Modular)”
chapter.
For cable and port pinouts, see the
Cisco Modular Access Router Cable Specifications
document.
Preparing to Connect to a Network
When setting up your router, consider distance limitations and potential electromagnetic interference
(EMI) as defined by the applicable local and international regulations.
The following sections describe network connection considerations for several types of network
interfaces:
•
Ethernet Connections, page 5-2
•
Serial Connections, page 5-3
•
ISDN BRI Connections, page 5-5
•
CSU/DSU Connections, page 5-5
See the following online documents for more information about network connections and interfaces:
•
Cisco Interface Cards Installation Guide
•
Cisco Modular Access Router Cable Specifications
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Ethernet Connections
The IEEE has established Ethernet as standard IEEE 802.3. The Cisco 1800 series Ethernet
implementations are as follows:
•
100BASE-T—2-pair Category 5 or unshielded twisted-pair (UTP) straight-through RJ-45 cable.
The maximum segment distance is 328 feet (100 meters).
•
10BASE-T—Ethernet on UTP cable. The maximum segment distance is 328 feet (100 meters). UTP
cables look like the wiring used for ordinary telephones; however, UTP cables meet certain
electrical standards that telephone cables might not meet.
