XE900 Smart Transceiver Base Access System Description Xecom comb

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XE900 Smart Transceiver Base Access System Description Xecom comb

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XE900
XE900 Smart Transceiver Base Access System
Description Xecom combines micro-controller transceiver create XE900, Smart Transceiver. XE900 communicate with another Smart Transceiver with Xecom's XE924 Base Access Point. Base Access Point connects multiple remote systems single dial-up telephone line. component. Integrating XE900 Smart Transceiver easy integrating serial modem into your system. XE900 interfaces system host through level serial interface. designer controls wireless link manipulating modem-like commands provided Smart Transceiver. XE900 offers great number wireless system options from simple point-to-point communication between Smart Transceivers complete Base Access Network which provides multi-point wireless communication Dial-up modem operation. Features Small Size: 2.75" 1.38: 0.42" Control Configuration Wireless Link modem-like Commands. Wireless Carrier Frequency 916.48 Band Wireless Range; maximum Feet Wireless Data Rate 9600 BPS, half-duplex Integrated communications controller regulates wireless communications protocols, error correction controls wireless link modem. Part Compliance
System XE900 Equipped System XE900 Equipped XE924 Base Access Point System XE900 Equipped System Host Micro-Controller System XE900 Equipped System Host Micro-Controller System XE900 Equipped
900MHz Smart Transceiver Applications
Point Point Wireless Connection
XE900 supplies
wireless connectivity through easy-to-use serial
900MHz Base Access System
Dial-up Telephone Line
XECOM
XE900
XE900 MECHANICAL SPECIFICATIONS
(Top View)
Inches 2.740 2.760 0.550 0.560 1.370 1.390 5.300 0.510 2.490 2.510 0.090 0.110 0.115 0.135 1.190 1.210 0.130 0.150 0.220 0.240 0.300 0.320
69.60 13.97 34.80 13.46 63.25 2.29 2.92 30.23 3.30 5.59 7.62
70.10 14.22 35.31 12.95 63.37 2.79 3.43 30.73 3.81 6.10 8.13
Description: Pins gold plated Dimensions .025 inches square, .minimum inches long
XECOM
XE900
XE900 BLOCK DIAGRAM
Antenna
Comm Controller
Transceiver
Level RS232C Interface
XE900 BLOCK DIAGRAM
RGND RESERVED RGND RESERVED RGND RESERVED RGND RESERVED RGND RGND RESERVED RESERVED RESERVED DGND /RST_VPP /DSR RESERVED RESERVED RESERVED RESERVED
XE900
RGND RESERVED RGND RESERVED RGND RESERVED RGND RESERVED RGND RGND RF_PDN RF_TXDATA RF_RXDATA RGND /CTS RESERVED /DCD RESERVED /DTR RESERVED /RTS RESERVED RESERVED RESERVED RESERVED
XECOM
XE900
XE900 CONFIGURATION
SIGNAL RGND PINS 46,48, DESCRIPTION RGND provides common reference point high frequency signals. These pins reserved future use. connections should made these pins.
RESERVED
DGND RST_PV
provides power transceiver. DGND provides ground reference modem communications controller circuitry XE900. RST_PV provides hardware reset line XE900's communications controller. provides power communications controller modem circuitry. Programmable from embedded communications controller. Register TRISA determines will input output pin. /DSR supplies Data Ready output from XE900. active output. /RXD serial data output from XE900. Mark condition /RXD active low. /TXD serial data input XE900. Mark condition /RXD active low. active output which indicates that wireless link been requested. This intentionally removed. /RTS active input XE900. stop flow data from XE900 host. When /RTS inactive XE900 will pass data host. /DTR connects Data Terminal Ready line from host. active input XE900.
/DSR /TXD /RTS
/DTR
XECOM
XE900
XE900 CONFIGURATION
/DCD /CTS /DCD provides Data Carrier Detect output from transceiver inside XE900. This active output. /CTS provides Clear Send output from XE900. XE900 deactivates /CTS stop flow data from host prevent buffer overflow. This active output. RF_RXDATA serial data output from transceiver XE900. Mark condition RF_RXDATA active high. RF_TXDATA signal input transceiver XE900. Mark condition RF_TXDATA active high. RF_TXDATA normally tied RF_PDN placed XE900's transceiver into sleep mode reduce power consumption when use. active high signal. RF_PDB normally tied
RF_RXDATA
RF_TXDATA
RF_PDN
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
-25O +85O +70O
Units screened operation from +85C. extra charge will applied this screening.
XECOM
XE900
XE900 ELECTRICAL SPECIFICATIONS
Parameter
Carrier Frequency Output Power Wireless Receive Sensitivity Antenna Output reversal reversal -0.3 VCC+0.3 916.43 916.48
4.75
5.25 916.53
Units
olts olts Ohms olts olts olts olts
Comments
Transmit Mode
Transmit Mode
Load
XECOM
XE900
XE900 TYPICAL APPLICATION SCHEMATIC
+5Volts
0.01
RESERVED RF_PDN RF_TXDATA RESERVED RF_RXDATA RESERVED
RS232 Interface
RS232 Driver
/CTS /DCD /DTR /RTS /DSR RESET Reserved Reserved Reserved Reserved Reserved Reserved Reserved
RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND
XE900
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved
Antenna Xecom recommends Linx Technologies right angle antenna, ANT-916-CS-RCL-ND
XECOM
XE900
XE900 COMMUNICATIONS CONTROLLER
Hardware: XE900 uses simple micro-controller supervise communications. This micro-controller formats data network manages host interface. Base Access Network Base Access Network includes eight nodes remote systems. systems communicate with XE924 Base Access Point using Xecom's XE900 Smart Transceiver. XE900 XE924 communicate over half-duplex channel single carrier frequency. communications controller helps manage this channel preventing collisions, correcting errors, reversing channel. Carrier Sense Multiple Access (CSMA) primary tool used prevent collisions between systems Carrier Sense Multiple Access protocol each network transceiver. XE900's Base Access Network XE924 Base Access Point listen communications activity 916.48 band before initiating session. wireless link already exists between XE924 XE900 equipped nodes, XE900 waits until that session complete before intiating wireless link. Data Packets XE900 places data presented system host into packets transmission across wireless link. XE924 also places data coming across telephone line into smae type packets. These packets provide addressing error correction wireless communications. communications controllers XE900 XE924 place data packets only wireless link. data extracted from packets before being sent modem system host.
XE900 COMMANDS
XE900 Host Interface XE900 interfaces host system using modem like commands. These commands control configuration XE900 wireless link. Command Line Format Command lines issued XE900 follow strict format. Each command begins with prefix ends with carriage return. XE900 communications controller accepts commands data rates from 1200 115200 BPS. modem uses command prefix automatically determine speed parity incoming characters. Command Prefix Each command, except command, begins with prefix. either both upper case both lower case cannot different cases. prefix identifies parity commands sent XE900 host. speed incoming serial data determined measuring width incoming bytes. Parity determined comparing parity bits characters. Command Line Commands strung together single command line characters. Commands command string executed sequence they appear. Space inserted into command line fill space modem's command buffer. carriage return terminates command line causes commands executed. Register allows user select character other than carriage return terminate command line. Re-Execute Last Command command reexecutes last command line. This only command which does require "AT" prefix. Omitted Parameters Most commands include parameter which determines function setting. When command parameter omitted from command string, assumed Result Codes modem normally issues result code after each action. Result codes provided full words, digit numeric codes, disabled together. Each result code ends with carriage return when numeric result codes chosen. When full word result codes chosen, Line Feed Carriage Return precede follow each result code. Disconnect Sequence three character sequence initates disconnect wireless link. sequence assigned disconnect link.
XECOM
XE900
Embedded Modem Commands
asterisk indicates factory default Answer Command forces smart transceiver respond summons from another wirless device. Initate Wireless Link attempts establish connection with transceiver address Echo Characters determines XE900 will echo characters received serial interface during command mode. Characters Echoed Characters Echoed Identification displays product identificaton code. Display Product Code Display Product Name Display Model Number Display Copywrite Display Firmware Revision Result Code Display determines results codes will displayed. Display Result Codes Display Result Codes Value Register Sn=? Read Value Register Response Type selects Full Word Numeric responses Numeric Responses Full Word Responses Reset executes soft Reset Reset Values Stored User Profile Reset Values Stored User Profile Options sets operation serial interface signal from XE900 Always Active Active during wireless Link Options determies XE900 will react status from host. Ignore Status Used Required Wireless Connection Execute Softe Reset when removed. Restore Factory Settings returns configuration commands registers their factory default values.
Flow Control selects type flow control used between system host XE900. Flow Control Disabled RTS/CTS, hardware Flow Control XON/XOFF, in-band Flow Control Data Ready sets operation interface signal from XE900. Always Active during Wireless Link View Active Configuration sends active configuration data system host.
Store Current Configuration loads current XE900 configuration into either User Profile User Profile load configuration into User Profile load configuration into User Profile Wireless Broadcast Mode intiates wireless boradcast mode diagnostic purposes.
#ID= Value XE900 #ID=?Read Value from XE900 Check RSSI Level Displays current Wireless recevied signal levels Display single value Display Values Display continuous values
XECOM
XE900
XE900 Configuration Registers
Answer Wireless Link Request: determines XE900 will automatically respond wireless link request. S0=0 S0=1 Automatic response link requests Automatically respond link requests Bit-mapped Register stores values ATE, commands. Bit-mapped Register stores values AT&D, AT&C XY&S commands. -mapped Register stores serial interface data rate. Bit-mapped Register stores value AT&K command. S105 XE900 Number S105 sets number XE900. Each unit Base Access Network required have unique number. number Base Access Point always Range: 2-254
Wireless Disconnect Character sets ASCII character used link disconnect sequence. defaule character tilde "~". Range: 0-255
Default: Disconnect Guard Timer sets value guard timer milliseconds before after disconnect sequence. characters other than disconnect sequence received within window defined llink will disconnected. Range: 0-255
S106 Noise Threshold S106
Default: Units: Milliseconds
XE900 Responses
Numeric Full Word CONNECT RING DISCONNECT ERROR BUSY WAIT Description Successfully executed command line Wireless Connection Established Wireless Link Request Detected Failed Establish Lost Wireless Link Error command line Link Request Time occurred Wireless Link available
XECOM
(10)
XE900
Part Compliance
XE900 designed comply with Part rules, however, approved. XE900 eligible approval because component which requires addition other components function. These other components include power supply, antenna, printed circuit board. these other components could affect Part compliance properly designed. Approvals required your system before sold united States other countries. XE900 subject rules governing both intended unintended radiation. transceiver must transmit signal compliance with Part rules governing intended radiation. Part rules also govern unintended radiation sources such serial interface cable connected XE900. Your system will have approved before sold; however, because XE900 utilizes band, your customers will require license.
XECOM
(11)
XE900
Terms Sale
Devices sold XECOM covered warranty provisions appearing Terms Sale only. XECOM makes warranty, express, statutory, implied, description regarding information forth herein, regarding freedom described devices from patent infringement. XECOM makes warranty merchantability fitness purposes. XECOM reserves right discontinue production change specifications prices time without notice. This product intended normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, high reliability applications, such military, medical life-support life-sustaining equipment, specifically recommended without additional processing authorization XECOM such application. Xecom assumes responsibility circuitry other than circuitry embodied Xecom product. other circuits, patents, licenses implied.
Life Support Policy
Xecom's products authorized Critical Components Life Support Devices Systems. Life Support Devices Systems devices systems which, intended surgical implant into body, support sustain life, whose failure perform, when properly used accordance with instructions provided labeling, reasonably expected result significant injury user. Critical Component component life support device system whose failure perform reasonably expected cause failure life support device system, affect safety effectiveness.
Copyright, Xecom 2002 While Xecom, Inc. made every effort ensure that information presented here accurate, Xecom will liable damages arising from errors omission fact. Xecom reserves right modify specifications and/or prices without notice. Product mentioned herein used identification purposes only trademarks and/or registered trademarks their respective companies.
Xecom Incorporated Turquoise Street, Milpitas, 95035 Ph:408-945-6640 Fax:408-942-1346 E-Mail: info@xecom.com
XECOM
(12)
XE900

XE900 Smart Transceiver Base Access System Description Xecom comb

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