Teletronics WINC900A - Manual (Page 6)

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1.0 Overview
Teletronics' advanced WINC 900A 1 wireless modem facilitates the transfer of information among
computers and peripherals without cables and expensive network operating systems. The device
operates at very low power in the ISM frequency band between 902 and 928 MHz and requires no
licensing by the FCC. Using state-of-the-art spread spectrum technology, the WINC 900A offers
reliable point-to-point data communication even when computers and peripheral devices are
separated by walls, floors, and ceilings or dispersed in mobile or temporary facilities.
The WINC 900A is Hayes-AT compatible, simple to operate, and supported by most commercially
available communications software packages such as PROCOMM™ , PC-ANYWHERE™ ,
XTALK™, etc. Data rates are user-selectable and vary from 300 bps to 38400 bps.
2.0 Technical Information
The WINC 900A transfers data asynchronously between computers or peripherals at user defined
data rates of 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2 and 38.4 kbps and connects to the serial port of either a
computer or peripheral via an RS-232 DB-25 connector. Data formats are selectable as follows:
Data: 7 or 8 bits, Parity: even/odd/none, Stop bit: 1 or 2. Hardware and software flow control are
supported via RTS/CTS and XON/XOFF, respectively. The WINC 900A operates full-duplex,
using the standard Hayes-AT command set, and can be configured for point-to-point or networked
operation. A complete listing of the available AT commands is included in Section 7.0.
The WINC 900A operates in the 902-928 MHz frequency band with a maximum power of 1 watt.
Eight independent 3 MHz wide channels are available within this band. Outdoors, the operating
range of the modem is approximately 1 kilometer. Depending on the material of walls and ceilings,
indoor operation may be limited to approximately 100 meters.
The WINC 900A uses direct sequence spread spectrum signaling with a variable PN spreading rate.
The device operates full-duplex using differentially encoded QPSK modulation. Sensitivity for this
system is -85dBm (not including spreading gain). See Appendix C for a detailed technical
specification of the device.
In general, the WINC 900A operates automatically with little need for user intervention. Both
channel selection and power control are automatic and transparent to the user guarantying that
communications occurs at the least power required to maintain the link on the selected channel.
3.0 Equipment Check List
The WINC 900A package contains the following items.
1. One (1) WINC 900A wireless modem
2. One (1) WINC 900A operation manual
3. One (1) warranty card
4. One (1) power cord
5. One (1) rubber omni antenna
6. Two (2) stands for vertical placement
1 WINC is a trademark of Teletronics International, Inc. All other trademarks or references to other
commonly used software or hardware are the property of their respective companies.