LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN

Chapter 1: Introduction

ISDN). Other models like LANCOM 1711 VPN are connected to the splitter using a separate ADSL modem.

Telephone

Switching node

 

Telephone

network

 

 

 

 

 

 

Splitter

 

 

 

Splitter

 

 

 

Internet

DSL access

 

 

 

multiplexer

ADSL

 

 

 

Router

 

 

ADSL provider

modem

Subscriber

 

 

The model LANCOM 1711 VPN can also utilize other broadband con- nections (e.g. cable modem) that offer a 10/100Base-Tx-Ethernet connector over PPPoE, PPTP or plain Ethernet (with or without DHCP).

The models LANCOM 821 ADSL/ISDN and LANCOM 1621 ADSL/ISDN can use this option, if the first LAN port is configured as WAN inter- face.

ADSL-over-ISDN or ADSL-over-POTS?

ADSL can operate over modern ISDN telephone service as well as conven- tional analog service (POTS – Plain Old Telephone Service).

There are, however, different technical specifications for the two telephone systems. For this reason, devices in the LANCOM series are offered in two dif- ferent versions: A version for ADSL-over-POTS and a version for ADSL-over- ISDN.

You can determine which telephone system a device supports by looking at the model description on the bottom of the device. The label containing the device name also contains an additional code which stands for the telephone system the device supports:

Code

Supported telephone system

'Annex A'

ADSL-over-POTS

 

 

'Annex B'

ADSL-over-ISDN

 

 

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Lancom Systems 1621, 821, 1711 manual ADSL-over-ISDN or ADSL-over-POTS?, Code

1621, 1711, 821 specifications

Lancom Systems is a notable player in the networking solutions market, and its range of routers, specifically the 821, 1621, and 1711 models, showcases the company's commitment to delivering robust, high-quality products for various enterprise needs. Each model brings distinct features, making them suitable for different environments and operational demands.

The Lancom 821 is particularly designed for small to medium-sized enterprises (SMEs) requiring reliable internet connectivity and secure networking. This router supports various VPN technologies, ensuring secure data transmission across the organization. Equipped with advanced firewall capabilities, the 821 can handle multiple connections while protecting against potential cyber threats. Its support for IPv6 enhances compatibility with future networks, making it a long-term investment. The device’s manageable architecture allows for remote access and troubleshooting, reducing the need for on-site IT interventions.

On the other hand, the Lancom 1621 is tailored for larger organizations or those with more extensive networking demands. This model offers enhanced throughput and is capable of managing large volumes of traffic without compromising performance. It features a variety of WAN connection options, including DSL, LTE, and fiber, allowing businesses to choose the best solution for their requirements. The 1621 also incorporates sophisticated Quality of Service (QoS) settings, which prioritize critical applications to ensure optimal performance during peak times. Built-in redundancy features enhance reliability, making it an excellent choice for mission-critical applications.

The Lancom 1711 takes networking capabilities a step further, targeting enterprises with even more complex needs. It boasts advanced routing and switching features, making it suitable for enterprise-grade deployments. The 1711 supports enterprise WLAN management, allowing seamless integration with wireless access points. Its robust performance over WAN connections enables the deployment of various real-time applications, such as voice over IP (VoIP) and video conferencing, without latency issues. Security is a top priority, with features including an IPSec VPN and integrated threat detection to safeguard organizational data.

In summary, the Lancom 821, 1621, and 1711 routers serve as versatile tools for businesses, each designed with distinct capabilities to meet specific networking needs. Their strengths lie in their security features, support for various connection types, and reliable performance under heavy loads. With these devices, organizations can ensure that their network infrastructure not only meets current demands but is also poised for future growth.