L M Ericsson yesterday announced new product in its information systems division as well as a $6.1m order from Oklahoma State University for a network of its 68000-based MD110 PABX to replace an existing Centrex network. The company has announced a low-end version of its PABX, called the MD110/20, which offers 40 to 160 extensions. It sees the biggest growth area in the PABX market in the low-end, particularly as deregulation begins to happen throughout Europe. The MD110 costs UKP200 to UKP250 per line and UKP400 to UKP500 per line for an inbtegrated voice and data system. The company says that digital voice and data PABXs have only been economic previously for users needing over 100 lines. Ericsson says there are over 950,000 lines of MD110 in service in over 30 countries and the millionth line will be installed next week. The company also announced a new local area network for its Personal Office System range. Called S61, it is both Ethernet- and Token Ring-compatible with 40Mb to 910Mb of server storage. It offers both IBM 3270 gateway and an asynchronous gateway for DEC users. No prices were given. Ericsson is also introducing its ZAT 128 fibre optic multiplexer to the UK market; it is already on sale elsewhere. Interfaces offered include 3270-type A terminals, assynchronous V24 and V28 terminals, and V35. Alfaskop and IBM Token Ring interfaces will be available by the end of 1987.