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

The Cisco Systems CISCO1841-HSEC/K9-RF is a versatile and robust router designed to meet the demands of small to medium-sized businesses and branch offices. This model is part of the Cisco 1800 Series Integrated Services Routers, which are known for their performance, security features, and scalability, making them ideal for organizations seeking to enhance their network infrastructure.

One of the main features of the CISCO1841-HSEC/K9 is its modular architecture. This design allows businesses to customize and expand their networks according to changing needs by adding various modules and interfaces. The router supports multiple WAN interfaces, which include serial, Ethernet, and DSL, providing flexible connectivity options to accommodate various networking scenarios.

The CISCO1841-HSEC/K9 also boasts an integrated security architecture. This router is equipped with advanced security features, including firewall capabilities, VPN support, and intrusion prevention systems. These technologies ensure that data is protected while being transmitted across the network. The built-in security features help organizations safeguard sensitive information against potential threats and cyberattacks.

In terms of performance, the CISCO1841-HSEC/K9 is powered by a high-speed processor and dynamic routing capabilities, which allow it to efficiently handle high volumes of traffic without compromising performance. The router supports various routing protocols, including EIGRP, OSPF, and BGP, facilitating seamless data flow and efficient route management.

Another noteworthy characteristic of the CISCO1841-HSEC/K9 is its support for voice and video services. This capability enables businesses to deploy unified communications applications, such as VoIP and video conferencing, enhancing collaboration among team members and improving overall productivity.

Moreover, the router is designed for easy management and monitoring. Cisco’s IOS software provides a user-friendly interface, allowing network administrators to configure, operate, and troubleshoot the network with ease. The router also supports Cisco’s Smart Install feature for simplified deployment and management.

In summary, the Cisco Systems CISCO1841-HSEC/K9-RF is a powerful and adaptable router that combines security, flexibility, and performance. Its modular design, robust security features, support for various routing protocols, and capabilities for multimedia applications make it a compelling choice for businesses looking to enhance their network infrastructure while addressing current and future demands.
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