Digital Modem Features/Benefits

The Cisco 3600, installed with the digital modem network modules, offers the most flexible, scalable, manageable,

and high-performance dial access solution available in the market today.

These new network modules utilize either the single or dual PRI network module, the 4 and 8 port BRI Network Modules, or the mixed media Fast Ethernet/PRI network module to offer support for up to 90 remote modem users (using two digital network modules), at speeds up to 56 kbps. Each network module supports up to 30 digital modems. Flexible LAN topologies including Ethernet, Fast Ethernet, and Token Ring are supported.

The internal digital modem network module is available with 6, 12, 18, 24, and 30 modems preinstalled, and can also be upgraded on site, from say 18 to 24 modems, as simply

as upgrading computer memory! This scenario gives the maximum flexibility to grow a dial-in solution as the remote user base grows.

Support for the new 56K modem technology allows users to achieve maximum data transfer rates, while still allowing support for V.34 technologies. The modems are software upgradable, and will support future standards as they become available. This high speed ensures the fastest downloads of Web pages and files.

Note: Actual speeds vary, depending on line conditions. Because of FCC limitations, speeds in the United States are less than 56 kbps.

The Cisco 3600 can take incoming Integrated Services Digital Network (ISDN) or voice calls and automatically switch them to the appropriate internal circuitry. The PRI/BRI switching is based on Q.931 messaging in the ISDN D channel. This out-of-band signaling channel provides a way for the telephone network to label each call as to the type of call. Specifically, when an incoming call is labeled “voice” by the telephone network, the Cisco 3600 directs it to one of its modems. When a call is labeled “ISDN data”, it is directed to one of its High-Level Data Link Control (HDLC) controllers. The benefits here are one phone number for modem and ISDN users. R2 and CT1 interfaces also support this switching ability.

The Cisco 3600 provides complete centrally managed modem capabilities, key requirements for branches and enterprises building midsized dial-in pools. The Cisco 3600 modems can be managed via the same Simple Network Management Protocol (SNMP)-based tools used to manage the rest of the network, providing network managers with one solution at a central management point. Optional enhanced modem management (Management Modem Technology License [MMTL]) capabilities allow for the gathering of modem statistics, real-time call-in-progress, monitoring modem activity log, modem hard/soft busy out, and the ability to accomplish modem firmware upgrades.

The installed modems can be utilized by LAN users for dial-out and fax-out applications, utilizing 3rd party applications such as the one available from Tactical Software. The modems can be assigned as dial-in, dial-out, or both. Dial-out support allows the LAN users to utilize the modems during the day for outgoing calls, and use the same modems in the evening for incoming calls from home users.

The ever-expanding numbers of remote users can be easily accommodated with the support for Multilink Multichassis PPP, allowing dial-in pools of lines to span numerous Cisco 3600 routers. Through the use of Layer 2 Forwarding (L2F) technology and Cisco’s exclusive Stack Group Bidding Protocol (SGBP), the Cisco 3600 can grow to meet the requirements of the fast-growing and frequently changing dial environments. Since the essential building block is a relatively small investment, enterprises and branch offices can scale from very small to larger installations.

The Cisco IOS® software can help maximize dial bandwidth, utilizing numerous features such as bandwidth on demand and protocol spoofing. These software features directly reduce line usage and reduce the cost associated with a remote access solution.

Lower operating costs are achievable with the Cisco 3600’s set of central management. The Cisco 3600 and its internal modems can be managed with CiscoWorks software. In addition, Cisco’s configuration management capabilities provide network managers with complete control over network statistics and the ability to configure and tune network operations from a central location. Finally, comprehensive debugging tools in Cisco IOS software substantially reduce the time and cost associated with problem isolation and correction.

Copyright © 1998 Cisco Systems, Inc. All Rights Reserved.

Page 2 of 5

Page 2
Image 2
Cisco Systems NM30DM, NM24DM, NM12DM, MICA-6MOD, NM18DM, MMTL-3600 technical specifications Digital Modem Features/Benefits

NM12DM, NM30DM, NM24DM, NM18DM, MICA-6MOD specifications

Cisco Systems is a leading player in the networking and communications technology sector. Among its expansive portfolio of innovative products, the MMTL-3600, MICA-6MOD, NM18DM, NM24DM, and NM30DM stand out for their unique features, technologies, and capabilities designed to enhance network performance and flexibility.

The MMTL-3600 is a versatile modular router ideal for medium-sized to large enterprises. Its key feature is the ability to support multiple network interfaces, facilitating a variety of connectivity options. This modular architecture provides scalability, allowing organizations to expand their networking capabilities without overhauling existing infrastructure. The MMTL-3600 also supports advanced routing protocols and security features, making it a robust choice for mission-critical applications. With a focus on high availability, this router enables seamless failover processes to maintain connectivity under various conditions.

Moving to the MICA-6MOD, this module is designed to enhance the capabilities of Cisco's industrial routers and is specifically built for Internet of Things (IoT) applications. It enables connection to multiple sensors and devices, making it an essential component for smart city initiatives or industrial automation. The rugged design of the MICA-6MOD ensures reliable performance in harsh environments. Moreover, its compatibility with Cisco's cloud offerings allows for streamlined data management and analytics, ensuring that enterprises can make informed decisions based on real-time data.

The NM18DM, NM24DM, and NM30DM are network module offerings that provide additional functionality for Cisco routers, primarily focused on delivering enhanced data throughput and connectivity options. The NM18DM features 18 ports, with options for both Ethernet and Fast Ethernet connectivity, which is ideal for connecting multiple devices in a distributed network. Similarly, the NM24DM offers 24 ports and supports a variety of interfaces, emphasizing flexibility and versatility.

On the other hand, the NM30DM pushes the envelope with its 30-port capability, further accommodating the demands of growing networks. Each of these network modules supports a range of technologies, including Quality of Service (QoS) for traffic prioritization and support for VLANs to enhance network organization and segmentation.

In summary, Cisco's MMTL-3600, MICA-6MOD, NM18DM, NM24DM, and NM30DM are integral components of modern network infrastructures. They offer unique features such as modularity, rugged design for industrial use, and extensive port options. With Cisco's commitment to innovation, these products are engineered to meet the diverse needs of businesses in an ever-evolving digital landscape, making them critical to any efficient networking strategy.