(GAINESVILLE, FL -- February 11, 1992) Barr Systems announced that its SNA RJE and 3270 gateways now support access from workstations with asynchronous modems. The feature allows laptops, notebook computers, and other PCs with inexpensive, internal, asynchronous modems to gain dial-up access to mainframes. Asynchronous access to the BARR/GATE gateway is provided by the four PC COM ports, and up to four of Barr's new 8-port ASYNC8 adapter boards, for a total of up to 36 ports. Using COM1 through COM4 with internal asynchronous modems provides a very clean and inexpensive solution. This configuration can support a large number of occasional dial-up users. The same gateway can also simultaneously support up to 254 total users on a LAN using NetBlOS, Novell IPX/SPX, or 802.2 Token Ring protocols. The ASYNC option supports the IBM-standard Asynchronous Data Link Control (ADLC) protocol, which provides access to the IBM Information Network, and allows the gateway to support both IBM and Attachmate 3270 asynchronous workstations. All of the advantages of the SNA architecture are provided, including error detection and correction, multiple sessions, IND$FILE transfer, HLLAPI support, and even optional RJE. Asynchronous modems supporting the V.42 bis compression standard can provide dial-up access at up to 38.4 kbps. This is much faster than existing synchronous dial-up solutions. Barr Systems products also support full duplex communications. This improves performance even during one-way transfers because the required acknowledgements are sent simultaneously. The ASYNC option to BARR/GATE sells for $690, and supports up to four ports using internal PC hardware. Up to four ASYNC8 eight-port adapters may be added to the gateway for $1,290 each. Remote workstations require Barr's 3270/ASYNC, with a list price of $200 per workstation, or compatible software. Barr Systems, Inc. offers a complete line of PC-based host connectivity products, supporting high-volume printing and file transfer via RJE and 3270 protocols. -------------------------------------------------------- (GAINESVILLE, FL -- February 11, 1992) Barr Systems announced that its remote mainframe communications products now support host connection using the Qualified Logical Link Control (QLLC) protocol to send SNA over X.25 networks. The X.25 link can greatly reduce access costs by eliminating long-distance telephone charges. Support for X.25 attachment has been added to the existing BARR/SNA RJE, RJE+3270, BARR/GATE, and BARR/3270 products. These were previously available with SNA/SDLC, Token Ring, and coaxial (DFT and 3299) connections. The X.25/QLLC connection operates over Barr's existing RS-232, V.35, and X.21 adapters, or with Barr's PC-SYNC internal synchronous modems. There is no additional charge for the X.25/QLLC software. President Tony Barr notes, "We intend to support the full spectrum of IBM connectivity. The X.25 option is an excellent choice for any RJE or 3270 environment where the per-packet charges would be lower than long-distance or dedicated line fees." In the Barr Systems implementation, packet costs have been minimized by eliminating all unnecessary SNA frames, and by automatically adjusting packet and window sizes to reduce segmentation of messages. The X.25 connection to the host is via the NCP Packet Switching Interface (NPSI), supported by IBM. Barr's SDLC and X.25 communications options support line speeds of up to 384 kbps. In addition, they support full-duplex (DATMODE=FULL) operation, which can nearly double the throughput provided by competing products. Barr Systems, Inc. offers a complete line of PC-based host connectivity products, supporting high-volume printing and file transfer via RJE and 3270 protocols. BARR Systems Inc, 4131 NW 23 Lane, Gainesville, FL 32606 904-371-3050; 800-BARR-SYS; fax 904-371-3018 +---------------------------------------------------------------+ | From the America On-Line & PC-Link New Product Info Services | +===============================================================+ | This information was processed with OmniPage Professional OCR | | software (from Caere Corp) & a Canon IX-30 scanner from data | | provided by the above mentioned company. For additional info, | | contact the company at the address or phone# indicated above. | | All submissions for this service should be addressed to | | BAKER ENTERPRISES, 20 Ferro Drive, Sewell, NJ 08080 U.S.A. | +---------------------------------------------------------------+