Transition Networks Announces 24-port All Fiber Managed Switch

New 24-port All Fiber Switch Supports 100/1000 Dual Speed SFPs and IPV6

Minneapolis, MN — March 27th, 2012 — Transition Networks Inc., the switching and conversion technology expert, a wholly owned subsidiary of Communications Systems, Inc. (NASDAQ: JCS), today announced the release of a 24-port managed all fiber switch. The SM24DPA offers Network Managers the ability to easily integrate fiber optics into their networks via (24) dual speed Small Form Factor Pluggable (SFPs) slots. A wide array of SFP optical transceivers are also available, offering a broad range of deployment options over multimode and/or single-mode fiber.

The SM24DPA is suitable for both Metro Ethernet and office applications and offers IT managers a better means to manage this device through useful functions such as Quality of Service (QoS), Spanning Tree, and Link Layer Discovery Protocol (LLDP). The SM24DPA all fiber switch also supports enhanced network security features including: SSH, SSL, and TACACS+ which guarantee users protected and secure connections to the network.

Due to the staggering increase of users in recent years, the internet has begun to feel the pinch from a shortage of available IPV4 IP addresses. Based on this, Transition has built support for both IPV4 and IPV6 protocols into the SM24DPA . For network managers that are facing having their network upgraded from IPV4 to IPV6 or are operating a hybrid environment, the MIL-SM24DPA will help to future-proof their network with advanced IPV6 protocols.

“Our dual speed fiber switch provides network operators with a flexible solution for delivering extraordinary Ethernet services over a wide range of fiber facilities.” said Kevin Faulds, Director of Product Management at Transition Networks. “We continue to introduce new products and solutions that enable our customers to extend the reach and maximize the value of their Ethernet infrastructure.”

Product Availability and Configuration
Transition’s newest 24-port fiber switch is available now. Please contact Transition Networks at (800) 526-9267 or 1-952-941-7600. You can also visit www.transition.com for the latest information.

About Transition Networks Products
Transition Networks’ conversion products are known for their ruggedness and reliability. They have a 99.4 percent customer acceptance rating, meaning that approximately one in 1,000 experience failure in the field. All Transition Networks brand of media converters, switches, SFPs and XFPs carry a lifetime warranty.

About Transition Networks Inc.
Transition Networks Inc. offers networking connectivity solutions that make networks perform better, faster and more reliably while helping companies leverage their existing networking infrastructure. The company’s Transition Networks brand of media converters make conversion between disparate media types possible, providing conversion technology solutions that offer the necessary adaptations without affecting the performance, nature or appearance of the network. Its complete portfolio of multilayer switching products is designed to facilitate low-cost network evolution with unique solutions, easing the stress on networks caused by high-bandwidth applications. Based in Minneapolis, Minnesota, USA, Transition Networks distributes hardware-based connectivity solutions exclusively through a network of resellers in over 50 countries. Transition Networks is a wholly owned subsidiary of Communications Systems, Inc., a publicly traded company (NASDAQ-GM: JCS).

Statements regarding the Company’s anticipated performance in 2012 are forward-looking and involve risks and uncertainties, including but not limited to: competitive products and other factors discussed from time to time in the Company’s filings with the Securities and Exchange Commission.