XE900M Smart Transceiver Base Access System Description Xecom com
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XE900M
XE900M Smart Transceiver Base Access System
Description Xecom combines micro-controller transceiver create XE900M, Smart Transceiver. XE900M communicate with another Smart Transceiver with Xecom's XE924M Base Access Point. Base Access Point connects multiple remote systems single dial-up telephone line. XE900M supplies wireless connectivity through easy-to-use serial component. Integrating XE900M Smart Transceiver easy integrating serial modem into your system. XE900M interfaces system host through level serial interface. designer controls wireless link manipulating modem-like commands provided Smart Transceiver. XE900M uses user-selectable communications channels band. This creates flexible communications platform simple point-topoint communications between Smart Transceivers complete Base Access Network with multi-point wireless communications Dial-up modem operation. Features Small Size: 2.75" 1.38: 0.4" Control Configuration Wireless Link modem-like Commands. Carrier Frequencies from 902.5 927.5 Band SensoronAirallows direct connection sensors Smart transceiver Wireless Range; maximum Feet Wireless Data Rate 9600 BPS, half-duplex Integrated communications controller regulates wireless communications, error correction host interface. Part Compliance
System XE900M Equipped Dial-up Telephone Line System XE900M Equipped XE924M Base Access Point
900MHz Smart Transceiver Applications
Point Point Wireless Connection
System Host Micro-Controller System XE900M Equipped
System Host Micro-Controller
System XE900M Equipped
900MHz Base Access System
System XE900M Equipped
XECOM
XE900M
XE900M MECHANICAL SPECIFICATIONS
(Top View)
Inches 2.740 2.760 0.400 0.420 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
69.60 10.16 34.80 13.46 63.25 2.29 2.92 30.23 3.30
70.10 10.67 35.31 12.95 63.37 2.79 3.43 30.73 3.81
Description: Pins gold plated Dimensions .025 inches square, .minimum inches long
XECOM
XE900M
XE900M BLOCK DIAGRAM
Antenna
FLASH Communications Controller
Level RS232C Inte rface
Transceiver
XE900M CONFIGURATION
RGND RESERVED RGND RESERVED RGND RESERVED RGND RESERVED RGND RGND I/O_1 I/O_2 I/O_3 DGND /RST_VPP A.D_1/Vref /DSR(RB1) RESERVED RESERVED RESERVED RESERVED
XE900M
RGND RESERVED RGND RESERVED RGND RESERVED RGND RESERVED RGND RGND RESERVED I/O_0 A/D_0 RGND /CTS RESERVED /DCD RESERVED /DTR RESERVED /RTS RESERVED RESERVED RESERVED RESERVED
XECOM
XE900M
XE900M CONFIGURATION
SIGNAL RGND RESERVED PINS 46,48, DESCRIPTION RGND provides common reference point high frequency signals. These pins reserved future use. connections should made these pins. I/O_1 programmable connected XE900M's internal micro-controller. I/O_2 programmable connected XE900M's internal micro-controller. I/O_3 programmable connected XE900M's internal micro-controller. provides power communications controller DGND provides ground reference modem communications controller circuitry XE900M. RST_PV provides hardware reset line XE900M's communications controller. provides power transceiver. Programmable from embedded communications controller. used analog input supply preceision analog reference voltage. /DSR supplies Data Ready output from XE900M. active output. /RXD serial data output from XE900M. Mark condition /RXD active low. /TXD serial data input XE900M. Mark condition active low. active output which indicates that wireless link been requested. This intentionally removed. /RTS active input XE900M. stop flow data from XE900M host. When /RTS inactive XE900M will pass data host. /DTR connects Data Terminal Ready line from host. active input XE900M. /CTS provides Clear Send output from XE900M. XE900M deactivates /CTS stop flow data from host prevent buffer overflow. This active output.
I/O_1 I/O_2 I/O_3 DGND RST_PV AD_1/Vref
/DSR /RTS
/DTR /CTS
XECOM
XE900M
XE900M CONFIGURATION
AD_0 I/O_0 Programmable from embedded communications controller. used 10-bit analog input. I/O_0 programmable connected XE900M's internal micro-controller.
ABSOLUTE MAXIMUM RATINGS
Storage Temperature Operating Temperature Range1
-25O +85O +70O
Units screened operation from +85C. extra charge will applied this screening.
XE900M ELECTRICAL SPECIFICATIONS
Parameter
Output Power Wireless Receive Sensitivity Antenna Output reversal reversal -0.3 VCC+0.3 2.85
2.85
3.15 3.15
Units
Volts Volts Ohms Volts Volts Volts Volts
Comments
Transmit Mode
Transmit Mode Load
XECOM
XE900M
XE900M COMMUNICATIONS FREQUIENCIES
XE900M utilizes 126, channels data transfer. communications channel selected Register S110. address communications channels shown below.
Channel Address Frequency (MHz) 902.5 902.7 902.9 903.1 903.3 903.5 903.7 903.9 904.1 904.3 904.5 904.7 904.9 905.1 905.3 905.5 905.7 905.9 906.1 906.3 906.5 906.7 906.9 907.1 907.3 907.5 907.7 907.9 908.1 908.3 908.5 908.7 Channel Address Frequency (MHz) 908.9 909.1 909.3 909.5 909.7 909.9 910.1 910.3 910.5 910.7 910.9 911.1 911.3 911.5 911.7 911.9 912.1 912.3 912.5 912.7 912.9 913.1 913.3 913.5 913.7 913.9 914.1 914.3 914.5 914.7 914.9 915.1 Channel Address Frequency (MHz) 915.3 915.5 915.7 915.9 916.1 916.3 916.5 916.7 916.9 917.1 917.3 917.5 917.7 917.9 918.1 918.3 918.5 918.7 918.9 919.1 919.3 919.5 919.7 919.9 920.1 920.3 920.5 920.7 920.9 921.1 921.3 921.5 Channel Address Frequency (MHz) 921.7 921.9 922.1 922.3 922.5 922.7 922.9 923.1 923.3 923.5 923.7 923.9 924.1 924.3 924.5 924.7 924.9 925.1 925.3 925.5 925.7 925.9 926.1 926.3 926.5 926.7 926.9 927.1 927.3 927.5
XECOM
XE900M
XE900M TYPICAL APPLICATION SCHEMATIC
+3Vo
0.01
I/O_1 RESERVED I/O_0 I/O_2 A/D_0 I/O_3
RS232 Interface
RS232 Driver
/CTS /DCD /DTR /RTS /DSR
RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND RGND
XE900M
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved
RESET A/D_1/Vref Reserved Reserved Reserved Reserved Reserved Reserved Reserved
Antenna Xecom recommends Linx Technologies right angle antenna, ANT-916-CS-RCL-ND
XECOM
XE900M
XE900M COMMUNICATIONS CONTROLLER
Hardware: XE900M uses simple micro-controller supervise communications. This micro-controller determines when communications link available, formats data network, manages host system interface. Base Access Network Base Access Network includes remote systems. systems communicate with XE924M Base Access Point using Xecom's XE900M Smart Transceiver. XE900M XE924M communicate over half-duplex channel single, user selected carrier frequency. user selects carrier frequency from available frequencies band. communications controller manages this channel preventing collisions, correcting errors, reversing data direction. Carrier Sense Multiple Access (CSMA) prevent collisions between network nodes XE900M uses Carrier Sense Multiple Access protocol each network transceiver. normal communications nodes network, including XE924M Base Access Point, listen communications activity before initiating session. wireless link already exists between XE924M XE900M equipped nodes, node waits until that session complete before initiating wireless link. Count-off Function count-off function permits Base Access Point quickly check status network nodes. When count-off command, AT#C: AT#C=, broadcast Base Access Point each node responds predetermined time slot. time slot determined address assigned node. node's response count-off command contains user-programmable byte data packet. This data packet programmed with AT#E: AT#E= command. count-off function also initiated from XE900M acting network hub. Data Packets XE900M places data presented system host into packets transmission across wireless link. XE924M also places data coming across telephone line into same type packets. These packets provide addressing error correction wireless communications. communications controllers XE900M XE924M place data packets only wireless link. data extracted from packets before being sent modem system host.
COUNT-OFF FEATURE
t129 time
Base Access Point broadcasts "Count-off" command. First smart transceiver equipped node (address transmits status. Next smart transceiver equipped node (address transmits status. Next smart transceiver equipped node (address transmits status.
t129 Final smart transceiver equipped node (address 128) transmits status.
XECOM
XE900M
Sensor-on-Air
XE900M includes Xecom's Sensor-on-Airfeature. this feature permits direct connection sensors XE900M smart transceiver. control functions sensors digital I/O's performed communications controller within Smart transceiver. Sensor Lines XE900M includes lines supporting Sensor-on-Air function. There analog inputs connected 10-bit analog digital converter. These analog inputs normally their reference voltage; however only precision analog input needed A/D2 used provide external reference voltage. XE900M also includes digital lines which programmed either inputs outputs. Configuring XE900M Sensor Operation communications controller within XE900M programmed control sensor lines through serial interface. commands issued through serial port define functions analog digital lines. below descriptions commands used program Sensor-on-Air functions. This information then stored Flash memory XE900M. After configuration XE900M installed application XE900M's communications controller will information stored Flash memory operate sensors. Sensor-on-Air Configuration Commands Below descriptions commands registers used program Sensor-on-Air functions.
S107 Defines function programmable lines. There analog input lines, ADC0 ADC1, which also defined digital lines needed. ADC1 also high accuracy voltage reference. four programmable digital lines, DIO0, DIO1, DIO2, DIO3; either inputs outputs. value this command stored flash memory within XE900M.
AT&IAn? This command allows local host read value Analog Input "n." AT&IDn? This command allows local host read status Digital "n." AT&IDn=z This command allows host equipment condition local digital output "n." When output logic low; when output logic high. AT#IxxxAn? This command allows value Analog Input node address "xxx" read remotely. AT#IxxxDn? This command allows status Digital node address "xxx" read remotely AT#IxxxDn=z This command allows condition local digital output node address "xxx" remotely. When output logic low; when output logic high.
XECOM
XE900M
XE900M COMMANDS
XE900M Host Interface XE900M interfaces host system using modem like commands. These commands control configuration XE900M wireless link. Command Line Format Command lines issued XE900M follow strict format. Each command begins with prefix ends with carriage return. XE900M 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 XE900M 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. 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 initiates disconnect wireless link. sequence assigned disconnect link.
Commands
asterisk indicates factory default Answer Command forces smart transceiver respond summons from another wireless device. Initiate Wireless Link attempts establish connection with transceiver address Echo Characters determines XE900M will echo characters received serial interface during command mode. Characters Echoed Characters Echoed Identification displays product identification code. Display Product Code Display Product Name Display Model Number Display Copyright Display Firmware Revision Result Code Display determines results codes will displayed. Display Result Codes Display Result Codes Value Register 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 XE900M Always Active Active during wireless Link
XECOM
(10)
XE900M
Embedded Wireless Commands
Options determines XE900M will react status from host. Ignore Status Used Required Wireless Connection Execute Soft Reset when removed. Restore Factory Settings returns configuration commands registers their factory default values. Data Ready sets operation interface signal from XE900M Always Active during Wireless Link View Active Configuration sends active configuration data system host.
&IAn? Read Local Analog Input This command allows host equipment read values local analog inputs. Read input ADC0 Read input ADC1 &IDn? Read Local Digital Input This command allows host equipment read status local digital inputs. Read input DIO0 Read input DIO1 Read input DIO2 Read input DIO3 Read input DIO4 (pin shared with ADC0) Read input DIO5 (pin shared with ADC1) &IDn=z Local Digital Output This command allows host equipment condition local digital outputs. When output logic low; when output logic high. output DIO0 output DIO1 output DIO2 output DIO3 output DIO4 (pin shared with ADC0) output DIO5 (pin shared with ADC1) Flow Control selects type flow control used between system host XE900M Flow Control Disabled RTS/CTS, hardware Flow Control XON/XOFF, in-band Flow Control
Store Current Configuration loads current XE900M configuration into either User Profile User Profile load configuration into User Profile load configuration into User Profile Wireless Broadcast Mode initiates wireless broadcast mode diagnostic purposes. Count-Off Request (ASCII) Initiates "count-off' sequence network with node status reported ASCII format.
Count-Off Request (Hex) Initiates "count-off' sequence network with node status reported hexadecimal format. Count-Off Response (ASCII) Programs nodes byte response "count-off' request from network ASCII format. Count-Off Response (Hex) Programs nodes byte response "count-off' request from network hexadecimal format.
#IxxxAn? Read Analog Input Node Address This command allows analog input values node read remotely. Read input ADC0 Read input ADC1 #IxxxDn? Read Digital Input Node Address This command allows status digital inputs node read remotely. Read input DIO0 Read input DIO1 Read input DIO2 Read input DIO3 Read input DIO4 (pin shared with ADC0) Read input DIO5 (pin shared with ADC1)
XECOM
(11)
XE900M
Embedded Modem Commands
#IxxxDn=z Digital Output Node Address This command allows condition digital outputs modified remotely. When output logic low; when output logic high. output DIO0 output DIO1 output DIO2 output DIO3 output DIO4 (pin shared with ADC0) output DIO5 (pin shared with ADC1) Check RSSI Level Displays current Wireless received signal levels Display single value Display Values Display continuous values
XE900M 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
(12)
XE900M
XE900M Configuration Registers
Answer Wireless Link Request: determines XE900M will automatically respond wireless link request. S0=0 S0=1 Automatic response link requests Automatically respond link requests S105 XE900M Number S105 sets number XE900M. 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. default character tilde "~". Range: 0-255 Default:
S106 Noise Threshold S106 S107 Configuration S107 bit-mapped register which defines local programmable lines. ADC0 ADC1 used Programmable ADC0 ADC1 defined Analog ADC0 ADC1 both used analog inputs ADC0 used analog input; ADC1 used high accuracy voltage reference. DIO0 used output DIO0 used input DIO1 used output DIO1 used input DIO2 used output DIO2 used input DIO3 used output DIO3 used input DIO4 used output (Bit DIO4 used input DIO5 used output (Bit DIO5 used input Default: S108 Transmit Level Control S108 sets transmit level XE900M. Range: Units: S110 Frequency Channel S110 selects frequency channel wireless communications. channels spaced 200KHz intervals from 902.5 927.5 Range: 0-125 Default: (916.5 MHz) 0-63 Default:
Disconnect Guard Timer sets value guard timer milliseconds before after disconnect sequence. characters other than disconnect sequence received within window defined link will disconnected. Range: Units: 0-255 Milliseconds Default:
Bit-mapped Register stores values ATE, commands. Bit-mapped Register stores values AT&D, AT&C XY&S commands. Serial Interface Data rate stores serial interface data rate. Range 0-10 Autobaud serial data rate 1200 serial data rate 2400 serial data rate 4800 serial data rate 9600 serial data rate 14400 serial data rate 19200 serial data rate 28800 serial data rate 38400 serial data rate 57600 serial data rate 115200 Bit-mapped Register stores value AT&K command.
XECOM
(13)
XE900M
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.
Part Compliance
XE900M designed comply with Part rules, however, approved. XE900M 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. XE900M 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 XE900M. Your system will have approved before sold; however, because XE900M utilizes band, your customers will require license.
Copyright, Xecom 2003 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
(14)
XE900M
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