Cisco Systems CISCO1841-HSEC/K9-RF Preparing to Connect to a Network, Auxiliary Port Connections

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 6-4of 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.

Cisco 1800 Series Routers (Modular) Hardware Installation Guide

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