TELCO SYSTEMS EXPANDS ACCESS PRODUCT LINE WITH CROSS-CONNECT AND FULL REDUNDANCY CAPABILITIES.

FREMONT, Calif.--(BUSINESS WIRE)--Sept. 18, 1995--Telco Systems (NASDAQ:TELC) today announced digital access cross-connect (DACS) and full redundancy capabilities for its flagship Access60 Network Access Server. The Access60 provides integrated access to North American and international public network services consolidating traffic from voice, data, image and video applications. The new cross-connect capability allows users to "groom" and "fill" voice and data traffic from any T1 or E1 line to any other T1 or E1 line, thus optimizing traffic at the access location rather than at the central office or hub site. Enhanced 1:N redundancy gives users complete backup capabilities for T1 links as well as system modules and power supply modules.

"Now you can terminate up to 8 T1 or E1 lines with cross-connect capabilities in the same, economical access product with all the benefits of integrated network access," said Bryan Knysh, director of product line management for Telco Systems. "The benefit of integrated access is reduced network access charges and the flexibility to maximize today's technology as well as new, emerging services," said Knysh.

In choosing the Access60 with cross- connect capabilities, users asign and allocate traffic from any T1 or E1 line to any other T1 or E1 line. This allows users to optimize their existing bandwidth because they can match traffic to the appropriate network service without having to purchase additional T1 or E1 lines or external cross-connect equipment. For example, in a network carrying frame relay and X.25 traffic, a user can configure the Access60 to "groom" traffic from a remote site, combine it with traffic from a local site and direct it to the appropriate X.25 or frame relay switch.

"The integration of multiple functions such as multiplexing and cross-connect capabilities with technologies such as frame relay and ISDN reduces network operation costs and greatly simplifies network planning, installation, maintenance and management," said Knysh. "Our enhanced redundancy capabilities and distributed architecture ensure complete system reliability because there is no single point of failure," he said.

Enhanced redundancy capabilities on the Access60 allow users to configure their systems for facility redundancy and common equipment redundancy. For facility redundancy, users can define high priority and low priority traffic, assigning each type of traffic to a specific T1 or E1. In the event of a T1/E1 failure, all high priority traffic is routed to the active T1/E1 and low priority traffic is "bumped" to inactive status, queued until the failed T1 returns to service, and returned to the active T1/E1. "Priority "bumping" improves the cost-effectiveness of redundant configurations," said Knysh.

"The Access60 provides the flexibility, redundancy and quality that are important to keep networks operating at their maximum capability," said Knysh. "Redundancy is an important feature for end users because information processing has become critical to business operations and market competitiveness."

Other enhancements to the Access60 include new multiple-port voice and data application modules that reduce costs for synchronous low-speed data transmission, asynchronous data transmission and FXS/FXO voice applications.

The Access60 with full redundancy and cross-connect capabilities is available today. List prices for the Access60 range from $6,000 for typical branch office applications to $30,000 for a typical fully redundant system used for disaster recovery.

Telco Systems integrated network access products provide businesses with a flexible, cost-effective means of transmitting voice, data, video and image traffic over public and private networks. These products are used in a wide variety of multimedia applications by network service providers, such as interexchange carriers, local exchange carriers and government agencies in the U.S. and by PPTs and corporations around the world. -0-

Access60 Network Access Server is a trademark of Telco Systems, Inc.

CONTACT: Bryan Knysh or Leslie Conley

Telco Systems, Inc.

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Copithorne & Bellows

Lisa Spellman/Joann Anderson

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