AirLink announces new CDPD field test tools.SAN JOSE San Jose, city, United States San Jose (sănəzā`, săn hōzā`), city (1990 pop. 782,248), seat of Santa Clara co., W central Calif.; founded 1777, inc. 1850. , Calif.--(BUSINESS WIRE)--May 29, 1996--AirLink Communications announces two additions to its family of CDPD (Cellular Digital Packet Data) A low-speed, digital, wireless data network that is an enhancement to an existing analog cellular network. Based on IBM's CelluPlan II, CDPD provides a packet overlay onto the AMPS network and moves data at 19. test equipment products. These field tools are designed for optimizing and maintaining CDPD cell performance. The AirLink CDPD Cell Wizard (TM) is a field diagnostic and measurement tool that contains a full duplex (Computers) arranged so that the information may be transmitted in both directions simultaneously; - of communications channels between computers; contrasted with The Wizard displays the current channel number, cell number, received signal strength, block error rates, percent busy, and the effective signal strengths of adjacent cells. It also summarizes events and exceptions as they happen. Routine events include reference scans, channel hops and cell transfers. Exceptions include registration failures, absence of cell configuration messages, broadcast parameters that are out of range, and instances of channel stream congestion The condition of a network when there is not enough bandwidth to support the current traffic load. congestion - When the offered load of a data communication path exceeds the capacity. . When exceptions occur, the Wizard describes them and offers suggestions for their resolution. The Wizard can also be used to setup and tune CDPD networks. The collected information is merged with the GPS coordinates and saved to ASCII files A file that contains data made up of ASCII characters. It is essentially raw text just like the words you are reading now. Each byte in the file contains one character that conforms to the standard ASCII code (see ASCII chart). that can be read by mapping software such as MapInfo(R). These can be used to map cell transfer activity and CDPD availability, and to figure out problems when and where they occur. The Cell Wizard runs on any 486 PC equipped with Windows 3.1. It connects to the PC via a serial port. The AirLink CDPD Monitor is a remote analysis device that reports on the status of the CDPD network by periodically transmitting UDP UDP (uridine diphosphate): see uracil. (User Datagram Protocol) A protocol within the TCP/IP protocol suite that is used in place of TCP when a reliable delivery is not required. packets to a designated server. These packets contain parameters used to analyze the quality of service at the Monitor's location. It operates in unattended mode and can be either mobile or stationary. The remote control feature allows the network operator to control the Monitor from the server, commanding it to perform specific tasks or to change the contents and frequency of the UDP packets. When the Monitor is mounted in a vehicle, the information it provides can be used to map numerous statistics, including CDPD availability, best server, cell transfers, signal strength, percent busy, and block error rates. This data can be mapped in real time or stored in a database for future analysis. The Monitor will centralize cen·tral·ize v. cen·tral·ized, cen·tral·iz·ing, cen·tral·iz·es v.tr. 1. To draw into or toward a center; consolidate. 2. the CDPD network expertise. Fewer engineers will be required to measure coverage, monitor the system, and diagnose problems. It can notify engineers of problems before customers experience them. Both the Cell Wizard and the Monitor contain CDPD modems from NovAtel Communications and embedded Inserted into. See embedded system. GPS receivers. They require a 12V DC power source. The list price for the Cell Wizard is $9500. The list price for the Monitor is $2500. Both will be available in the third quarter of this year. AirLink Communications, Inc. is a leading developer of test equipment and protocol software for wireless communications wireless communications System using radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves in place of wires, cables, or fibre optics to transmit signals or data. . Their products include airlink protocol analyzers See network analyzer. and network emulators for CDPD and for pACT, the two-way paging protocol. Further information is available at http://www.airlink.com. MapInfo(R) is a registered trademark of MapInfo Corporation. EDITORS NOTE: There is a double slash following "http:" in the World Wide Web address above. This symbol may not appear properly in some systems. CONTACT: AirLink Communications, Inc., San Jose Ray Fasnacht, 408/261-6602 |
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