AeroComm AC4424 User Manual - Version 1.9
Contents
1. 6 2 4424 SPECIFICATIONS c 7 3 SPE el G M HL ose rn 8 3 1 INTEREACE SIGNAL DBEBFINITIONS 5 ense etit eto tr rer Pes eb 8 3 2 ELECTRICAL SPECIFICATIONS a e ED RE EEG T REPRE ER e PU 9 3 3 S XSTEM TIMING oli TUR CERTO OR REEF CR e OPER Rep edet d uie TO 9 3 3 1 Serial Interface Data Rate i eee ei ee i Ra eere 9 3 3 2 Timing DidSrams uai e RE ERREUR tae deta pins 10 3 3 3 Maximum Overall System Throughput ees esee eene nennen nennen 12 4 CONFIGURING THE 4424 ae 13 4 1 tee e dee peret le codec pee eet E erede 13 4 2 CONFIGURING THE 24 este e eter o EE REOS EE ERRARE E Pe 15 4 3 COMMAND REEERENCE tit terrier e erre EHE REAPER EE eere ra ta eoe E 16 4 4 AC4424 AT COMMANDS teer Er i et 17 4 4 1 Enter AT Command Mode aiee eene eene 17 4 4 2 Exit AT Command Mode 17 4 5 ON THE FLY CONTROL COMMANDS CC COMMAND MODE iier 18 4 5 1 Stat s REQUEST c eiie pit e eat e et de Heavens EHE 18 4 5 2 Change Channel with Forced Acquisition Sync eese 19 4 5 32. 32 5 10 2005 5 AC4424 Features Simple 5V TTL level serial interface for fast integration Frequency Hopping Spread Spectrum for security and interference rejection Cost Efficient for high volume applications Low power consumption for battery powered implementations Small size for portable and enclosed applications Very Low latency and high throughput Industrial temperature 40 C to 80 C SASSA 1 Overview The AC4424 is a member of AeroComm s ConnexRF OEM transceiver family It is designed for integration into OEM systems operating under FCC part 15 247 regulations for the 2 4 GHz ISM band The 4424 is a cost effective High performance 2 4 GHz frequency hopping spread spectrum transceiver It provides an asynchronous TTL level serial interface for OEM Host communications Communications include both system and configuration data The Host supplies system data for transmission to other Host s Configuration data is stored in an on board EEPROM All frequency hopping synchronization and RF system data transmission reception is performed by the transceiver The 4424 transceivers can be used as a direct serial cable replacement requiring no special Host software for operation They also feature a number of On the Fly Control Commands providing the OEM Host with a very versatile interface for any situation 4424 transceivers operate in a Point to Point or Point to Multipoint
3. at ete ate eene en pte et enr 19 4 5 4 Sync Channel tete t et HP EU RE HH PISO 19 4 5 5 Rower Down n 20 4 5 6 Powe r DownmnMake Up s eec ett d vii Fe eeoa EES e EA E Ep REHFRHNEUE 20 4 5 7 Broadcast Mode eae e t ettet teh te eiit ne ate 20 4 5 8 Write Destination Address nette petet teet ieget es 21 4 5 9 Read Destination Address eee 21 4 3107 uei ue be EA RR Ute E ga 21 LILI EEPROM 22 epe m a ee ERE ERO NE 22 5 THEORY OF 88 23 5 1 HARDWARE INTERFACE i ie eere eger RSEN HE E ERU t AREE EIE EUR E RE 23 5 1 1 TXD Transmit Data and Receive Data pins 2 3 respectively 23 5 1 2 Hop EV GME nie tet exer ere SG E AR A A da pune eden eren ive x nte te aevo dy 23 5 1 3 CTS Handshaking Din 7 tea ett RU tp ettet 23 5 1 4 RTS Handshaking sess tte Eae o eee ttp ee 23 5 1 5 9600 Baud Packet Frame 12 ccccsscccsscccsssssesceesseceseceeacecsscceeacecsseeeeacececeeeacecesaeeeeaeecsseeeees 24 5 1 6 RSSI Pn
4. EHE 24 5 1 7 Wr ENA EEPROM Write Enable pin 14 25 5 1 8 UP RESET etes 26 5 1 9 Commoand Da ta pim IZ cete utere 26 921 10 R nge pin 20 2 5 ete ett RE De IRSE ene E 26 52 SOFTWARE PARAMETERS kortene eie o raei EE ede bue e Ee vae n N AT EE 27 5 2 1 RF Architecture Server Client Peer to Peer eee esee 27 3 2 2 RF Mode usse eed A panne ent peel up pp 27 5 2 3 Random Back Off ir tete P RO e RR RE ERR SPHERE re Ur iei ia KEARE s 28 5 2 4 SUD si oet e eg Nt pet RI e m etd 29 5 2 5 Duplex ere e a RP petri 29 5 2 6 Interface Timeout RF Packet Size 30 5 10 2005 4 9 227 Serial Interface Baud Rate 30 5 2 8 Network Topology ie eri Rt rare e D Re reo etr ete Reed 31 5 2 9 32 6 DIMENS O 33 7 ORDERING INFORMATION eese 35 74 PRODUCT PART NUMBERS seis s esce tete ERO PET EUR Gene TER et ROT E 35 7 2 DEVELOPER KIT PART NUMBERS 5 rne mr RR OR n RR OSERE PR rra 35 8 REGULATORY INFORMATION eere rete etes teens n etn
5. wai for Hop Local RF TXD RF Packet Remote RF TXD RF Acknow ledge Remote TXD Received Data Hop Period L Hop Time Broadcast Acknowledge Mode with No Interface Timeout Hop Frame Local RXD Packet Data wait for Hop Local_RF_TXD RF Packet Remote_RF_TXD Remote_TXD Received Data Hop Period L Hop Time Broadcast Acknowledge Mode with Interface Timeout Hop Frame Local RXD Packet Data Wait for Hop Local RF TXD Remote RF TXD B Remote TXD Interface Timeout Hop Perio Hop Time Hop Frame 5 10 2005 11 Table 4 Timing Parameters Hop Period Acknowledge Mode Hop Period Stream 21 Mode 3 3 3 Maximum Overall System Throughput When configured as shown in the table below an AC4424 transceiver is capable of achieving the listed throughput However in the presence of interference or at longer ranges the transceiver may not be able to meet these specified throughputs Table 5 Maximum Overall System Throughputs RF Mode Interface Baud Duplex Direction Throughput Rate bps Sram 1 EM o Disabled 192k 5 10 2005 12 4 Configuring the AC4424 4 1 EEPROM PARAMETERS A Host can program various parameters that are stored in EEPROM and become active after a power on reset Table 6 EEPROM Parameters gives the locations and descriptions of the parameters that can be read or written by a Host Factory default values are also shown Do not
6. Client Server or Peer to Peer architecture One transceiver is configured as a Server and there can be one or many Clients To establish synchronization between transceivers the Server emits a beacon Upon detecting a beacon a Client transceiver informs its Host and a RF link is established There are two data rates the OEM should be aware of e Serial Interface Data Rate All transceivers can be configured to common PC serial port baud rates from 110 bps to 288 000 bps e Effective Data Transmission Rate The 4424 is a highly efficient low latency transceiver This document contains information about the hardware and software interface between an AeroComm AC4424 transceiver and an OEM Host Information includes the theory of operation Specifications interface definition configuration information and mechanical drawing The OEM is responsible for ensuring the final product meets all FCC and or appropriate regulatory agency requirements listed herein before selling any product 5 10 2005 6 2 AC4424 Specifications GENERAL Interface 20 pin mini connector Serial Interface Data Rate PC baud rates from 110 bps to 288 000 bps Power Consumption typical Duty Cycle TX Transmit RX Receive Frequency Band 10 50 100 100 RX_ Pwr Down 4424 10 90 115 140 85 15 4424 100 100mA 160mA 235mA 85 15 4424 200 115mA 235 385mA 85mA 15mA C
7. Input Power dBm e New Revision m Old Revision Table 7 RSSI Board Rev History Radio Type Old RSSI Board New RSSI Board Number Number 4424 10 0050 00025 0050 00036 4424 10 0050 00029 4424 100 0050 00037 0050 00075 4424 200 0050 00030 0050 00045 5 1 7 Wr ENA EEPROM Write Enable pin 14 Wr ENA is a direct connection to the Write Enable line on the EEPROM When logic Low the EEPROV s contents may be changed When logic High the EEPROM is protected from accidental and intentional modification It is recommended that this line only be Low when an EEPROM write is desired to prevent unintentional corruption of the EEPROM 5 10 2005 25 5 1 8 UP RESET pin 15 UP RESET provides a direct connection to the reset pin on the AC4424 microprocessor To guarantee a valid power up reset this pin should never be tied Low on power up For a valid power on reset reset must be High for a minimum of 50us 5 1 9 Command Daita 17 When logic High transceiver interprets Host data as transmit data to be sent to other transceivers and their Hosts When logic Low transceiver interprets Host data as command data see Section 4 Configuring the AC4424 5 1 10 In Range pin 20 The IN RANGE pin at the connector will be driven logic Low when a Client is in range of a Server on the same RF Channel and System ID If a Client cannot hear a Server for 5s it will drive the IN R
8. Packet Frame When enabled in EEPROM Packet Frame will transition logic Low at the start of a received RF packet and transition logic High at the completion of the packet 5 1 6 RSSI pin 13 Received Signal Strength Indicator is used by the Host as an indication of instantaneous signal strength at the receiver The Host must calibrate RSSI without a RF signal being presented to the receiver Calibration is accomplished by following the steps listed below to find a minimum and maximum voltage value 1 Power up only one Client no Server transceiver in the coverage area 2 Measure the RSSI signal to obtain the minimum value with no other signal present 3 Power up a Server Make sure the two transceivers are in close proximity and measure the Client s peak RSSI once the Client reports In Range to obtain a maximum value at full signal strength Figure 1 shows approximate RSSI performance There are two versions of receivers used by the 4424 As of January of 2003 forward only the new revision receiver will be shipped The RSSI pin of the former revision requires the Host to provide a 27kQ pull down to ground A table of board revision history is provided below No RSSI pull down should be used with the new revision 5 10 2005 24 Figure 1 RSSI Voltage vs Received Signal Strength Voltage V wo o o o 8o 4 20 25 el 30 4 35 El 40 4 5 75 80 85 4 90 95
9. write to any EEPROM addresses other than those listed below Do not copy a transceiver s EEPROM data to another transceiver Doing so may cause the transceiver to malfunction Table 6 EEPROM Parameters EEPROM Length Parameter Address Bytes Range Default Description 40 bytes Product identifier string Includes revision information for software Product ID 40 and hardware Lulu Sub Hop Adjust 36H 80h DOh 80h Stream Channel See Table 10 um elim m Server Client 01h Server Baud Rate Low E AEE 00 FFh Low Byte of the interface baud rate Baud Rate High 00 FFh ooh High Byte of the interface baud rate See Table 10 00h 4424 10 amp 4424 200 Country Code 44H 1 00h E3h E3h 4424 100 Control 0 45H 1 00010100b Settings are Bit 7 AeroComm Use Only Bit 6 AeroComm Use Only Bit 5 Sync to Channel 0 Don t Sync to Channel 1 Sync to Channel Bit 4 AeroComm Use Only Bit 3 Packet Frame 0 Disable Packet Frame 1 Use pin 12 as Packet Frame Bit 2 RF Mode 0 RF Stream Mode 1 RF Acknowledge Mode Bit 1 RF Delivery 0 Addressed 1 Broadcast Bit 0 FEC 0 No Forward Error Correction 1 Use Forward Error Correction 5 10 2005 13 pup we ome oe Parameter Address Bytes Range Description ER m Offset 00h 2 Retries 01 FFh E ao Ly orl gg OO Attempts 4DH 01 FFh 04h API Control 56H 0100001
10. 1b Settings are 49h 7 AeroComm Use Only Bit 6 RF Architecture 0 Server Client 1 Peer to Peer Bit 5 AeroComm Use Only Bit 4 Auto Destination 0 Use Destination Address 1 Automatically set Destination to Server Bit 3 AeroComm Use Only Bit 2 RTS Enable 0 RTS Ignored 1 Transceiver obeys RTS Bit 1 Duplex Mode 0 Half Duplex 1 Full Duplex Bit 0 Auto Config 0 2 Use EEPROM values 1 Auto Configure Values Interface Timeout 58H 1 01 FFh FOh SyncChamel 1 Joo srh oth RFPacketSize 5BH 1 o1 4oh 40h CTSOn scH 1 jJot FFh CO CTS On Hysteresis 5DH 01 FFh s 6 Bytes a oo macip 6 6Bytes UniquelEEEMAC Address 00h Disable Random Backoff 01h Wait 1 2 packet times then retry 03h Wait 1 4 packet times then retry 07h Wait 1 8 packet times then retry OFh Wait 1 16 packet times then retry 1Fh Wait 1 32 packet times then retry Fh Wait 1 64 packet times then retry Random Fh Wait 1 128 packet times then retry Backoff Cih 1 00 FFh 00h FFh Wait 1 256 packet times then retry 5 10 2005 14 4 2 CONFIGURING THE AC4424 No Send CC Commands Send another CC Command Resetting the 4424 at any time will exit Configuration or CC Command mode 5 10 2005 15 4 3 COMMAND REFERENCE Command Command
11. 24 Specifications 5 2 4 Sub Hop Adjust Sub Hop Adjust is an AC4424 protocol parameter and its settings are as follows Table 8 Sub Hop Adjust Settings RF Mode Sub Hop Adjust 5 2 5 Duplex Mode In Half Duplex mode the 4424 will send a packet out over the RF when it can This can cause packets sent at the same time by a Server and a Client to collide with each other over the RF To prevent this Full Duplex Mode can be enabled This mode restricts Clients to transmitting on odd numbered frequency bins and the Server to transmitting on even frequency bins Though the RF hardware is still technically half duplex it makes the radio seem full duplex This can cause overall throughputs to be cut in half Note All transceivers on the same network must have the same setting for Full Duplex Full Duplex mode is incompatible with Stream RF mode 5 10 2005 29 AC4424 Specifications 5 26 Interface Timeout RF Packet Size Interface timeout in conjunction with RF Packet Size determines when a buffer of data will be sent out over the RF as a complete RF packet based on whichever condition occurs first Interface Timeout Interface Timeout specifies a maximum byte gap in between consecutive bytes When that byte gap is exceeded the bytes in the transmit buffer are sent out over the RF as a complete packet Interface timeout is adjustable in 160uS decrements The actual timeout created by Interface Timeout is equal to the 2 s c
12. 550 1 010 0 100 0 000 0 000 5 10 2005 Figure 3 AC4424 with Integral Antenna 20 pin header 0 020 sq posts on 0 079 inch 2mm centers 99 0 125 non plated holes 4 places 1 550 OO OOO O 0 000 0 100 0 150 0 890 2 550 2 550 34 Ordering Information 7 Ordering Information 7 1 PRODUCT PART NUMBERS 4424 10 AC4424 10A AC4424 100 AC4424 200 AC4424 with 10mW output power interface data rates to 288Kbps MMCX antenna connector 40 C to 80 C AC4424 with 10mW output power interface data rates to 288Kbps integral microstrip antenna 40 C to 80 C AC4424 with 50mW output power interface data rates to 288Kbps MMCX antenna connector 40 C to 80 C AC4424 with 200mW output power interface data rates to 288Kbps MMCX antenna connector 40 C to 80 C 7 2 DEVELOPER KIT PART NUMBERS SDK 4424 10 SDK 4424 10A SDK 4424 100 SDK 4424 200 5 10 2005 Includes 2 AC4424 10 transceivers 2 RS232 Serial Adapter Boards 2 6Vdc unregulated power supplies 2 Serial cables 2 S151FL 5 RMM 2450S dipole antennas with 5 pigtail and MMCX connector configuration testing software Integration engineering support Includes 2 AC4424 10A transceivers 2 RS232 Serial Adapter Boards 2 6Vdc unregulated power supplies 2 Serial cables configuration testing software Integration engineering support Includes 2 AC4424 100 transce
13. AEROCOMM AC4424 2 4 GHz OEM TRANSCEIVERS Specifications Subject to Change User s Manual Version 1 9 71160 THOMPSON AVENUE LENEXA KS 66219 800 492 2320 www aerocomm com wireless aerocomm com DOCUMENT INFORMATION Copyright Copyright 2005 AEROCOMM Inc All rights reserved Inf ti The information contained in this manual and the accompanying niormation software programs are copyrighted and all rights are reserved by AEROCOMM Inc AEROCOMM Inc reserves the right to make periodic modifications of this product without obligation to notify any person or entity of such revision Copying duplicating selling or otherwise distributing any part of this product without the prior consent of an authorized representative of AEROCOMM Inc is prohibited All brands and product names in this publication are registered trademarks or trademarks of their respective holders This material is preliminary Information furnished by AEROCOMM in this specification is believed to be accurate Devices sold by AEROCOMM are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only AEROCOMM makes no warranty express statutory and implied or by description regarding the information set forth herein AEROCOMM reserves the right to change specifications at any time and without notice AEROCOMV s products are intended for use in normal commercial and industrial applications Applications requir
14. ANGE pin logic High and enter a search mode looking for a Server As soon as it detects a Server the IN RANGE pin will be driven logic Low A Server Host can determine which Clients are in range by the Server s Host software polling a Client s Host 5 10 2005 26 5 2 SOFTWARE PARAMETERS Below is a description of all software parameters used to control the AC4424 5 2 1 RF Architecture Server Client Peer to Peer The Server controls the system timing by sending out regular beacons transparent to the transceiver Host which contain system timing information This timing information synchronizes the Client radios to the Server Each network should consist of only one Server There should never be two Servers on the same RF Channel Number in the same coverage area as the interference between the two Servers will severely hinder RF communications In Server Client architecture the Server communicates with the Clients and the Clients only communicate with the Server Enabling Peer to Peer Mode will allow all radios on the network to communicate with each other Note All transceivers on the same network must have the same setting for Peer to Peer and there must still be one and only one Server present in a Peer to Peer network 5 2 2 RF Mode All radios located on the same network must use the same RF Mode Acknowledge Mode In Addressed Acknowledge Mode the RF packet is sent out to the receiver designated by the Destination Address Tr
15. All Bytes in Hex Return All Bytes in Hex Name AT Enter Command 2Bh 2Bh ODh Mode Exit AT Command 54h 4Fh 00h New Mode ES Stat Request Change Channel with C New Forced Channel Channel Acquisition C C C C C 00h Server In Range Firmware Oth Client In Range Version 02h Server Out of Range 03h Client Out of Range OOh Server in Normal Operation 01h Client in Normal Firmware Operation 02h Server in Acquisition Sync 03h Client in Acquisition Version 00h Server in Normal Operation 01h Client in Normal Operation Server Client 02h Server in Acquisition Sync 03h Client in Acquisition Sync Broadcast Addressed New Sync Channel 00h or 01h Byte 4 of Byte 5 of Byte 6 of destination s destination s destination s MAC MAC MAC Byte 4 of Byte 5 of Byte 6 of destination s destination s destination s Mode 01h Broadcast Write Byte 4 of Destination destination s destination s destination s Address MAC MAC MAC Read Destination CCh 11h Address MAC MAC MAC EEPROM Start Length Start Data at CCh sido a Length Taa Byte Read Address 01h 80h Address Addresses EEPROM Length Data t Length on CCh Cth Address ng jn d eng Data Written Byte Write 01h Written 01h Ch Ch Ch Ch Ch Ch Ch Ch Ch Ch Ch SS Ch 5 10 2005 16 4 4 AC4424 AT COMMANDS The AT Command mode implemented in the AC4424 creates a vir
16. NGE Vcc07 304A 0 4 0 1 6mA 3 3 SYSTEM TIMING Care should be taken when selecting transceiver architecture as it can have serious effects on data rates latency timings and Overall System Throughput The importance of these three characteristics will vary from system to system and should be a strong consideration when designing the system 3 3 1 Serial Interface Data Rate The Serial Interface Data Rate is programmable by the Host This is the rate the Host and transceiver communicate over the serial bus Possible values range from 110 bps to 288 000 bps The only supported mode is asynchronous 8 bit No Parity 1 Start Bit and 1 Stop Bit 5 10 2005 9 3 3 2 Timing Diagrams Stream Mode with Interface Timeout Local_RXD Packet Data Interface Timeout wai for Hop Local RF TXD RF Packets Remote RF TXD Remote TXD Received Data Hop Period L Hop Time Stream Mode with Fixed Packet Length Hop Frame Local RXD Packet Data for Local RF TXD RF Packets Remote RF TXD Remote TXD Received Data Hop Period Hop Time Addressed Acknowledge Mode with Interface Timeout Hop Frame Local RXD Packet Data Wait for Hop Local RF TXD Remote RF TXD N X RF Acknow ledge Remote TXD Interface Timeout Hop UN Hop Time Hop Frame 5 10 2005 710 Addressed Acknowledge Mode with No Interface Timeout Local RXD Packet Data
17. a sins totns 36 8 1 EE 36 80 ee i eee Re re ete menit oe dete 38 8 3 APPROVED ANTENNA LIS Teseo herren e eoe dte eiie eee ere ied 39 Figures Figure 1 RSSI Voltage vs Received Signal Strength 25 Figure 2 AC4424 with MMQX nico aeree tete here ce 33 Figure 3 4424 with Integral Antenna essere ener ener 34 Tables Table 1 Pin D finitions eee pere cea E e ats ade E te cei 8 Table 2 DC Input Voltage nennen rennen nennen rennen enne tenen 9 Table 3 DC Output Voltage 9 Table 4 Timing Parameters ooi eerte rere e ne eR eee EE Ene EE RR Teen 12 Table 5 Maximum Overall System Throughputs esee nennen rennen eene ene 12 Table 6 EEPROM Parameters esee p 13 Table 7 RSSI Board Rev eterne nenne nente trenes 25 Table 8 Sub Hop Adjust Settings essere enne enne nennen trennen 29 Table 9 Baud Rate eee eee e tete pec eH 30 Table 10 US and International RF Channel Number Settings essere 31 Table 11 Auto Config
18. ansmit Retries is used to increase the odds of successful delivery to the intended receiver Transparent to the OEM Host the sending transceiver will send the RF packet to the intended receiver If the receiver receives the packet free of errors it will tell the sender If the sender does not receive this acknowledge it will assume the packet was never received and retry the packet This will go on until the packet is successfully received or the transmitter exhausts all of its retries The received packet will only be sent to the OEM Host if and when it is received free of errors In Broadcast Acknowledge Mode the RF packet is broadcast out to all eligible receivers on the network In order to increase the odds of successful delivery Broadcast Attempts is used to increase the odds of successful delivery to the intended receiver s Transparent to the OEM Host the sending transceiver will send the RF packet to the intended receiver If the receiver detects a packet error it will throw out the packet This will go on until the packet is successfully received or the transmitter exhausts all of its attempts Once the receiver successfully receives the packet it will send the packet to the OEM Host It will throw out any duplicates caused by further Broadcast Attempts The received packet will only be sent to the OEM Host if it is received free of errors 5 10 2005 27 Stream Mode In Broadcast Stream mode the RF packet is broadcast out to all eligib
19. ations with the transceiver Table 1 Pin Definitions shows the connector pin numbers and associated functions The I O direction is with regard to the transceiver All I O is 5VDC TTL level signals except for RSSI All inputs are weakly pulled High and may be left floating during normal operation Table 1 Pin Definitions P Type SignalName Function pa __ o 2 o mo __ Transmitted data outofthetranscever o o mo Datainputtothetranscever 0 pa ne NoCmet o HepFrame RTS Request to Send When enabled in EEPROM active Low when the OEM Host is ready to accept data from the transceiver NOTE Keeping RTS High for too long can cause data loss 7 BV 2 SOMV ripple at voc 5 2 60 11 12 yo 9600 BAUD 9600 BAUD When pulled logic Low before applying power or resetting the transceiver s Packet Frame serial interface is forced to a 9600 8 N 1 rate To exit transceiver must be reset or power cycled with 9600 Baud logic High Packet Frame When programmed in EEPROM Packet Frame will transition logic Low at the start of a received RF packet and transition logic High at the completion of the packet Received Signal Strength Indicator An analog output giving a relative indication of received Signal strength while in Receive Mode LEM EEPROM Write Enable When pulled logic Low it allows the Host to write the on
20. board EEPROM Resetting the transceiver with this pin pulled Low may corrupt EEPROM data 15 UP_RESET RESET Controlled by the AC4424 for power on reset if left unconnected After a Stable power on 250ms a 50us logic High pulse will reset the AC4424 Do not power up the transceiver with this pin tied Low transceiver interprets Host data as transmit data Pie nc jNoComet o nc jNoCmet 20 IN RANGE In Range Active Low when a Client radio is in range of a Server on same Channel with the same System ID Input to the transceiver O Output from the transceiver 5 10 2005 8 3 2 ELECTRICAL SPECIFICATIONS Table 2 DC Input Voltage Characteristics Pin Type Name HighMin High Max 3 BXD 02Vccr09 05 05 O2VccO1 V 75 2 09 05 05 O2VccO1 V 12 9600 Baud 0 2Vcc 0 9 05 05 0 2Vcc01 V i4 WRENA Vc 03 05 v 55 1 UP RESET 07 2 05 05 02Vcc01 V i7 1 Command Data O2Vcc 09 05 05 0200001 V Table 3 DC Output Voltage Characteristics Pin Type Name HighMin LowMax Unit 2 Vcc07Q 30uA O4 16mA V 6 HopFrame Vcc07 Q 30uA 04 1 6mA V 7 O CTS Vcc07Q 3QA 04 1 6mA V 12 PacketFrame 0 7 B0uA 0 4 1 6mA 13 O RSSI See Figure 1 See Figure 1 20 IN RA
21. command that provides the OEM Host with a means for ad hoc networking Only the three Least Significant Bytes of the MAC Address are used for packet delivery Host Command Byte 1 CCh Byte 2 11h Transceiver Response Byte 1 CCh Bytes 2 4 00 FFh corresponding to the three LSB s of the destination MAC Address 4 5 10 EEPROM Byte Head Upon receiving this command a transceiver will respond with the desired data from the address requested by the OEM Host OEM Host Command Byte 1 CCh Byte 2 COh Byte 3 Start Address Byte 4 Length 01 80h Transceiver Response Byte 1 CCh Byte 2 Start Address Byte 3 Length Byte 4 n Data at requested addresses 5 10 2005 21 4 5 11 EEPROM Byte Write Upon receiving this command a transceiver will write the data byte to the address specified but will not echo it back to the OEM Host until the EEPROM write cycle is complete The write can take as long as 10ms to complete Following the write cycle a transceiver will transmit the data byte to the OEM Host Multiple byte EEPROM writes are not allowed Caution The maximum number of write cycles that can be performed is 100 000 OEM Host Command Byte 1 CCh Byte 2 Cih Byte 3 Address Byte 4 Length 01h Byte 5 n Data to store at Address Transceiver Response Byte 1 Address Byte 2 Length 01h Byte 3 Data byte written by this command 4 5 12 Reset The OEM Host issues this command t
22. ginal Equipment Manufacturer OEM must ensure that CE labeling requirements are met This includes a clearly visible label on the outside of the OEM enclosure specifying the appropriate CE marking Further information can be found in the R amp TTE Directive Article 12 and Annex VII 5 10 2005 38 Regulatory Information 8 3 APPROVED ANTENNA LIST 70 D d 2 S o pepp p pepet Pe pefe Egger ERES iig m dBi 2 2 1 5 13 5 2 5 AC4424X 100 AC4424X 100 US Canada m Centurion Wave Dipole enturion Wave Dipole MFB24008RPN BMMG24000MSMARP12 BMMG24005MSMARP12 MP24013TMSMARP12 7 MC2400 10 ve Wave Dipole_ S131CL 5 RMM 2450S Nearson b Wave Dipole S181FL 5 RMM 2450S Nearson f2 Wave Dipole a N 3 S151FL 5 RMM 2450S MLPV1700 Maxrad Omni Directional R380 500 127 21 ANT YGI2N mx a N 0 ES E EM EN 10 12 18 19 20 E TTT TT 5 10 2005 39
23. hannels used to create independent networks US Canada 40 Channels Europe 40 Channels France 20 Channels Security One byte System ID Interface Buffer Size Input Output 256 bytes each RADIO 2 402 2 478 GHz 2 406 2 435 GHz 2 444 2 472 GHz 2 406 2 435 GHz US Canada 10mW 100mW 200mW Europe Low Band 100mW Europe High Band 100mW France 100mW Radio Type Frequency Hopping Spread Spectrum Output Power conducted no antenna 4424 10 10mW typical 4424 100 50mW typical 4424 200 200mW typical Effective Isotropic Radiated Power EIRP with 4424 10 20mW typical 3dBi gain antenna 4424 100 100mW typical 4424 200 400mW typical Voltage 5V nominal 2 50mV ripple Sensitivity 90dBm typical 576kbps Range based on gain antenna 4424 10 Indoors to 300 ft Outdoors to 3000 ft 4424 100 Indoors to 400 ft Outdoors to 6000 ft 4424 200 Indoors to 500 ft Outdoors to 10000 ft ENVIRONMENTAL Temperature Operating Industrial 40 C to 80 C Temperature Storage 50 C to 85 C Humidity non condensing 10 to 90 PHYSICAL Dimensions 1 65 x 2 65 x 0 20 Antenna AC4424 10 Jack or Integral Antenna 4424 100 Jack 4424 200 MMCX Jack Weight Less than 0 7 ounce 5 10 2005 3 Specifications 3 1 INTERFACE SIGNAL DEFINITIONS The 4424 has a simple interface that allows OEM Host communic
24. he Interface Timeout expires on a CC Command the transceiver will send the packet to the OEM Host before sending the CC Command response When an invalid command is sent the radio scans the command to see if it has a valid command followed by bytes not associated with the command in which case the radio discards the invalid bytes and accepts the command In all other cases the radio returns the first byte of the invalid command back to the user and discards the rest The EEPROM parameters and a Command Reference are available in Section 4 Configuring the AC4424 of this manual 4 5 1 Status Request The Host issues this command to request the status of the transceiver Host Command Byte 1 CCh Byte 2 00h Byte 3 00h Transceiver Response Byte 1 CCh Byte 2 Firmware version number Byte 3 Datat Where Data1 00 for Server in Normal Operation 01 for Client in Normal Operation 02 for Server in Acquisition Sync 03 for Client in Acquisition Sync 5 10 2005 18 4 5 2 Change Channel with Forced Acquisition Sync The Host issues this command to change the channel of the transceiver and force the transceiver to actively begin synchronization Host Command Byte 1 CCh Byte 2 02h Byte 3 RF Channel Number Hexadecimal Transceiver Response Byte 1 CCh Byte 2 RF Channel Number Hexadecimal 4 5 3 Server Client The Host issues this command to change the mode Server or Client of the transceiver and ca
25. he following command to the transceiver OEM Host Command CCh 41h 54h 4Fh ODh Transceiver Response CCh 44h 41h 54h 5 10 2005 17 4 5 ON THE FLY CONTROL COMMANDS CC COMMAND MODE The AC4424 transceiver contains static memory that holds many of the parameters that control the transceiver operation Using the CC command set allows many of these parameters to be changed during system operation Because the memory these commands affect is static when the transceiver is reset these parameters will revert back to the settings stored in the EEPROM While in CC Command mode using pin 17 Command Data the RF interface of the transceiver is still active Therefore it can receive packets from remote transceivers while in CC Command mode and forward these to the OEM Host While in CC Command mode using AT Commands the RF interface of the transceiver is active but packets sent from other transceivers will not be received The transceiver uses Interface Timeout RF Packet Size to determine when a CC Command is complete Therefore there should be no delay between each character as it is sent from the OEM Host to the transceiver or the transceiver will not recognize the command If the OEM Host has sent a CC Command to the transceiver and an RF packet is received by the transceiver the transceiver will send the CC Command response to the OEM Host before sending the packet However if an RF packet is received before t
26. in EEPROM and use predetermined values for the given Interface Baud Rate Auto Config has been optimized for 192 000 baud Stream Mode 115 200 baud Acknowledge Mode and all lower baud rates It should only be disabled with recommendation from AeroComm Below is a list containing some of the variables affected by Auto Config and their respective values Table 11 Auto Config Parameters Stream Mode Acknowledge Mode EEPROM Description Address FEC FEC FEC FEC eee snes um Enabled ol Parameters without a Description undocumented protocol parameters and should only be modified to value other than shown in this table when recommended by AeroComm 5 10 2005 32 AC4424 Specifications 6 Dimensions All AC4424 products measure 1 65 W x 2 65 L Critical parameters are as follows e J1 20 pin OEM interface connector Samtec TMM 110 01 L D SM mates with Samtec SMM 110 02 S D MMCX Jack Antenna connector Johnson Components P N 135 3711 822 mates with any manufacturer s MMCX plug Figure 2 AC4424 with MMCX 20 pin header 0 020 sq posts on 0 079 inch 2mm centers 0 157 E unm 0 180 0 062 0 067 0 000 0 125 dia non plated holes 4 places 1 650 MMCX jack 0 145 dia 0 675 0 100 0 000 DOoOoooooQoQ 0 000 ooo e 5 10 2005 33 0 910 2 350 2 550 2 650 AC4424 Specifications 0 157 En m 0 062 0 000 1 650 1
27. ing unusual environmental requirements such as military medical life support or life sustaining equipment are specifically not recommended without additional testing for such application Limited Warranty Disclaimer Limitation of Liability For a period of one 1 year from the date of purchase by the OEM customer AeroComm warrants the OEM transceiver against defects in materials and workmanship AeroComm will not honor this warranty and this warranty will be automatically void if there has been any 1 tampering signs of tampering 2 repair or attempt to repair by anyone other than AeroComm authorized technician This warranty does not cover and AeroComm will not be liable for any damage or failure caused by misuse abuse acts of God accidents electrical irregularity or other causes beyond AeroComm s control or claim by other than the original purchaser In no event shall AeroComm be responsible or liable for any damages arising From the use of product From the loss of use revenue or profit of the product or As a result of any event circumstance action or abuse beyond the control of AeroComm whether such damages be direct indirect consequential special or otherwise and whether such damages are incurred by the person to whom this warranty extends or third party If after inspection AeroComm determines that there is a defect AeroComm will repair or replace the OEM transceiver at their discretion If the product i
28. is controlled by this parameter Keep in mind that selecting a larger value for Random Back Off will increase the overall latency of the AC4424 The latency calculation becomes Worst Case Latency 8ms Hop of retries Maximum Random Value multiply by 16ms if using Full Duplex mode Latency is a very important consideration when using a wireless device The AC4424 has 256 byte interface buffer If due to latency the radio cannot send the data out over the RF as fast as data is coming into the radio over the serial interface the buffer will eventually fill up If data continues coming into the radio once the buffer is full the buffer will overflow and the new incoming data will be lost It is strongly recommended that the radio host monitor the CTS pin to avoid this situation The transceiver asserts this pin high as the buffer is filling to signal the OEM Host to stop sending data The transceiver will take CTS Low once the buffer becomes less full Random Backoff Settings e 00h Wait 1 packet time then retry Random Back Off is disabled e Oth Wait 1 2 packet times then retry e 03h Wait 1 4 packet times then retry e 07h Wait 1 8 packet times then retry e OFh Wait 1 16 packet times then retry e iFh Wait 1 32 packet times then retry e 3Fh Wait 1 64 packet times then retry 7Fh Wait 1 128 packet times then retry e FFh Wait 1 256 packet times then retry 5 10 2005 28 AC44
29. ivers 2 RS232 Serial Adapter Boards 2 6Vdc unregulated power supplies 2 Serial cables 2 S151FL 5 RMM 2450S dipole antennas with 5 pigtail and MMCX connector configuration testing software Integration engineering support Includes 2 AC4424 200 transceivers 2 RS232 Serial Adapter Boards 2 6Vdc unregulated power supplies 2 Serial cables 2 S151FL 5 RMM 2450S dipole antennas with 5 pigtail and MMCX connector configuration testing software Integration engineering support 35 Requlatory Information 8 Regulatory Information Agency Identification Numbers Part Number US FCC CAN IC EUR EN 4424 10 KQL PKLR2400 CAN2268391 158A AC4424 100 KQL AC4424 CAN2268C391190A CE AC4424 200 KQL PKLR2400 200 CAN2268391180A 8 1 FCC The user is responsible for all labeling and ensuring the module complies with FCC regulations see 47CFR2 for exact regulations The FCC identifier proceeded by FCC ID and the FCC Notice found below must be clearly visible on the outside of the equipment e The RF Exposure Warning next page also must be printed inside the equipment s user manual The FCC IC approval was granted with the module classified as mobile ie the antenna is gt 20 cm from the human body with the exception of hands wrists feet and ankles The end user needs to ensure that the antenna location complies with this or retest for portable classification less than 2 5 cm with the sa
30. ld use Sync to Channel A Server radio with Sync to Channel enabled will synchronize its frequency hop timing to a system located on the RF Channel specified by Sync Channel The only requirement is that Sync Channel be numerically less than RF Channel Therefore every co located network will be synchronizing to the network with the lowest RF Channel Five Channel sets are provided for the AC4424 Frequency Offset and Country Code are protocol parameters used to satisfy unique international requirements Co located networks must use the same Channel Set Channel sets 4 and 5 are only supported in firmware versions 3 0 and higher Table 10 US and International RF Channel Number Settings Channel RF Channel Number Frequency Country Frequency Range Countries Set Range 40h Offset uc Code 44h 00h OFh 10h 1Fh p 2402 2478MHz 10mW 200mW US Canada 00h 13h 2406 2435MHz 100mW Europe France US Canada 14h 27h 2444 2472MHz 100mW Europe US Canada System ID System ID is similar to a password character or network number and makes network eavesdropping more difficult A receiving radio will not go in range of or communicate with another radio on a different System ID 5 10 2005 31 AC4424 Specifications 5 2 9 Auto Config 4424 has several variables that control its RF performance and vary by RF Mode and RF Architecture Enabling Auto Config will bypass the value for these variables stored
31. le receivers on the network In Addressed Stream Mode the RF packet is sent out to the receiver designated by the Destination Address The sending transceiver will send each RF packet out once There are no retries on the packet Whether or not the packet contains errors the receiver s will send the packet to the OEM Host However if receiver is not able to receive the packet in its entirety there are bytes missing it will not send the packet to the OEM Host In order to increase the odds of successful delivery Forward Error Correction FEC may be used FEC is used transparent to the OEM Host to increase the odds of correctly receiving a packet sent over the RF When enabled the transceiver will send every byte over the RF 3 times and then perform a best of three bit wise decision on the received bytes Enabling FEC can cut overall throughput by 1 3 Note All transceivers on the same network must have the same setting for FEC Stream Mode is incompatible with Full Duplex Mode 5 23 Random Back Off Random Back Off If multiple AC4424 transceivers try to send packets out over the RF at the exact same time the packets will collide and will not be received by the intended receiver In fact if after a collision occurs both transceivers retry at the same time the retry will also fail To avoid further collisions a transceiver can be programmed to wait a random number of packet times hops before resending its data The amount of randomness
32. me exceptions as mobile at their own expense FCC regulations allow the use of any antenna of the same type and of equal or less gain However the antenna is still required to have a unique antenna connector such as MMCX or reverse SMA On the following page is a table of antennas available through AeroComm Any different antenna type or antenna with gain greater than those listed must be tested to comply with FCC Section 15 203 for unique antenna connectors and Section 15 247 for emissions at user s expense Caution Any changes or modifications not expressly approved by AeroComm could void the FCC compliancy of the AC4424 5 10 2005 36 Regulatory Information FCC Notice A WARNING This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation FCC Labeling Requirements A WARNING The Original Equipment Manufacturer OEM must ensure that FCC labeling requirements are met This includes a clearly visible label on the outside of the OEM enclosure specifying the appropriate AeroComm FCC identifier for this product as well as the FCC Notice above FCC RF Exposure AC4424 A WARNING To satisfy FCC RF exposure requirements for mobile type transmitting devices a separation distance of 20 cm or more should be maintained bet
33. n force the transceiver to actively begin synchronization Host Command Byte 1 CCh Byte 2 03h Byte 3 Datat Where Data1 00 for Server in Normal Operation 01 for Client in Normal Operation 02 for Server in Acquisition Sync 03 for Client in Acquisition Sync Transceiver Response Byte 1 CCh Byte 2 Firmware Version Number Byte 3 Datat Where Data1 Data1 from Host Command 4 5 4 Sync Channel The Sync Channel command can be sent to a Server that already has Sync to Channel enabled This will change the Server s Sync Channel setting Host Command Byte 1 CCh Byte 2 05h Byte 3 New Channel to Synchronize to Transceiver Response Byte 1 CCh Byte 2 New Channel to Synchronize to 5 10 2005 19 4 5 5 Power Down After the Host issues the power down command to the transceiver the transceiver will de assert the In Range line after entering power down A Client transceiver in power down will remain in sync with a Server for a minimum of 2 minutes To maintain synchronization with the Server this Client transceiver should re sync to the Server at least once every 2 minutes This re sync is accomplished by issuing the Power Down Wake Up Command and waiting for the In Range line to go active Once this occurs the Client transceiver is in sync with the Server and can be put back into power down Host Command Byte 1 CCh Byte 2 06h Transceiver Response Byte 1 CCh Byte 2 RF Channel N
34. o perform a soft reset of the transceiver same effect as using the Reset pin Any transceiver settings modified by CC Commands excluding EEPROM writes will be overwritten by values stored in the EEPROM OEM Host Command Byte 1 CCh Byte 2 FFh Transceiver Response Byte 1 CCh Byte 2 FFh 5 10 2005 22 5 Theory of Operation 5 1 HARDWARE INTERFACE Below is a description of all hardware pins used to control the AC4424 5 1 1 TXD Transmit Data and RXD Receive Data pins 2 and 3 respectively The 4424 accepts 5V TTL level asynchronous serial data in the RXD pin and interprets that data as either Command Data or Transmit Data Data is sent from the transceiver to the OEM Host via the TXD pin The data must be of the format 8 N 1 8 data bits No Parity bits One stop bit 5 1 2 Hop Frame pin 6 The 4424 is a frequency hopping spread spectrum radio Frequency hopping allows the system to hop around interference in order to provide a better wireless link Hop Frame transitions logic Low at the start of a hop and transitions logic High at the completion of a hop The OEM Host is not required to monitor Hop Frame 5 1 3 CTS Handshaking pin 7 4424 has an interface buffer size of 256 bytes If the buffer fills up and more bytes are sent to the transceiver before the buffer can be emptied data corruption will occur The transceiver prevents this corruption by asserting CTS High as the buffer fills
35. omplement of Interface Timeout times 160uS The default value for Interface Timeout is FOH or 2 56ms RF Packet Size When the amount of bytes in the transceiver transmit buffer equals RF Packet Size those bytes are sent out as a complete RF packet 5 2 7 Serial Interface Baud Rate This two byte value determines the baud rate used for communicating over the serial interface to a transceiver Table 9 Baud Rate lists values for some common baud rates Baud rates below 110 baud are not supported For a baud rate to be valid the calculated baud rate must be within 3 of the OEM Host baud rate If the 9600 BAUD pin Pin 12 is pulled logic Low at reset the baud rate will be forced to 9 600 For Baud Rate values other than those shown in Table 9 Baud Rate the following equation can be used BAUD 18 432E 06 32 desired baud rate BaudH High 8 bits of BAUD base16 BaudL Low 8 bits of BAUD base16 Table 9 Baud Rate Rate 42h 43h 58h 192 000 03h 00h FFh 5 10 2005 30 AC4424 Specifications 5 2 8 Network Topology RF Channel Number RF Channel Number provides a physical separation between co located networks The AC4424 is a spread spectrum frequency hopping radio with a fixed hopping sequence Without synchronizing the different networks to each other different channel numbers could possibly interfere with each other and create cross talk To avoid cross talk interference co located networks shou
36. s replaced it may be a new or refurbished product 5 10 2005 2 DOCUMENT INFORMATION Revision Version 1 0 Version 1 1 Version 1 2 Version 1 3 Version 1 4 Version 1 5 Version 1 6 Version 1 7 Version 1 8 Version 1 9 5 10 2005 Description 11 7 2001 Initial Release Version 10 14 2002 Not Released 10 18 2002 Full release of AC4424 specification 11 19 2002 Made Full Duplex incompatible with Stream Mode 12 09 2002 Changed Sub Hop Adjust setting recommendations 1 30 2003 Removed all references to Commercial and Industrial temperature All products are now Industrial temperature Changed Section 4 2 1 EEPROM Byte Read to allow multiple byte reads 4 30 2004 Added warranty information Updated agency compliancy Added new RSSI plot Updated Channel Number information Added configuration flow chart and timing diagrams Updated approved antenna table Added 4424 10 information 5 5 2004 Modified references from Table 9 to Table 11 5 10 2004 Changed start up time to reflect addition of microprocessor supervisor Updated Auto Config table 5 10 2005 Added the following CC Commands Sync Channel EEPROM Byte Read Write and Soft Reset Added AT Commands Removed Configuration command documentation though the firmware will continue to support their usage Added Auto Destination and Random Backoff TABLE OF CONTENTS 1
37. tual version of the Command Data pin The Enter AT Command Mode Command asserts this virtual pin Low to signify Command Mode and the Exit AT Command Mode Command asserts this virtual pin High to signify Data Once this pin has been asserted Low all On the Fly CC Commands documented in the manual are supported When in AT Command Mode the user cannot send or receive RF packets However an ambiguity of approximately 10ms exists where if the Enter AT Command Mode command has been sent to the transceiver at the same time an RF packet is being received the RF packet could be sent to the OEM Host before the Enter AT Command Mode command response is sent to the OEM Host 44 1 Enter AT Command Mode Prior to sending the Enter AT Command Mode command to the transceiver the OEM Host must ensure that the RF transmit buffer of the transceiver is empty if the buffer is not empty the Enter AT Command Mode command will be interpreted as packet data and will be transmitted out over the RF This can be accomplished by waiting up to one second between the last transmit packet and the AT Command The OEM Host must also ensure that the RF Packet Size for the transceiver is set to a minimum of six The Enter AT Command mode command is as follows OEM Host Command 41h 54h 2Bh 2Bh 2Bh ODh Transceiver Response CCh 43h 4Fh 4Dh 44 2 Exit AT Command Mode To exit AT Command Mode the OEM Host should send t
38. umber Hexadecimal 4 5 6 Power Down Wake Up The Power Down Wake Up Command is issued by the Host to bring the transceiver out of power down mode Host Command Byte 1 CCh Byte 2 07h Transceiver Response Byte 1 CCh Byte 2 RF Channel Number Hexadecimal 4 5 7 Broadcast Mode The Host issues this command to change the transceiver operation between Addressed Mode and Broadcast Mode If addressed mode is selected the transceiver will send all packets to the radio designated by the Destination Address programmed in the transceiver Host Command Byte 1 CCh Byte 2 08h Byte 3 00 for addressed mode 01 for broadcast mode Transceiver Response Byte 1 CCh Byte 2 00 for addressed mode 01 for broadcast mode 5 10 2005 20 4 5 8 Write Destination Address The Host issues this command to the transceiver to change the Destination Address This is a very powerful command that provides the OEM Host with a means for ad hoc networking Only the three Least Significant Bytes of the MAC Address are used for packet delivery Host Command Byte 1 CCh Byte 2 10h Bytes 3 5 00 FFh corresponding to the three LSB s of the destination MAC Address Transceiver Response Byte 1 CCh Bytes 2 4 00 FFh corresponding to the three LSB s of the destination MAC Address 4 5 9 Head Destination Address The Host issues this command to the transceiver to read the Destination Address This is a very powerful
39. up and taking CTS Low as the buffer is emptied CTS On in conjunction with CTS On Hysteresis control the operation of CTS CTS On specifies the amount of bytes that must be in the buffer for CTS to be disabled High Even while CTS is disabled the OEM Host can still send data to the transceiver but it should do so carefully Once CTS is disabled it will remain disabled until the buffer is reduced to the size specified by CTS On Hysteresis The following equation should always be used for setting CTS On CTS On Hysteresis and RF Packet Size CTS On CTS On Hysteresis RF Packet Size 5 1 4 RTS Handshaking pin 8 With RTS Mode disabled the transceiver will send any received packet to the OEM Host as soon as the packet is received However some OEM Hosts are not able to accept data from the transceiver all of the time With RTS Mode Enabled the OEM Host can keep the transceiver from sending it a packet by disabling RTS logic High Once RTS is enabled logic Low the transceiver can send packets to the OEM Host as they are received Note Leaving RTS disabled for too long can cause data loss once the transceiver s receive buffer fills up 5 10 2005 23 5 1 5 9600 Baud Packet Frame pin 12 9600 BAUD When pulled logic Low before applying power or resetting the transceiver s serial interface is forced to a 9600 8 N 1 8 data bits No parity 1 stop bit rate To exit transceiver must be reset or power cycled with 9600 Baud logic High
40. ween the antenna of this device and persons during operation with exception of hands wrist feet and ankles To ensure compliance operations at closer distance than this distance is prohibited The preceding statement must be included as a CAUTION statement in manuals for OEM products to alert users on FCC RF Exposure compliance 5 10 2005 37 Regulatory Information 8 2 CE The AC4424 100 is a Class 2 transceiver that is harmonized everywhere except France Therefore the end product will have to be marked with a CE the is encircled For complete rules and regulations on labeling in Europe refer to the R amp TTE Directive Article 12 and Annex VII And the country or countries that the end user intends to sell product in be notified prior to shipping product Further information about this regulation can be found in Article 6 4 of the R amp TTE Directive CE regulations allow the use of any antenna of the same type and of equal or less gain However the antenna is still required to have a unique antenna connector such as or reverse SMA On the following page is a table of antenna available through AeroComm Any different antenna type or antenna with gain greater then those listed must be re tested to comply standard EN 300 328 at user s expense Caution Any changes or modifications not expressly approved by AeroComm could void the CE compliancy of the AC4424 CE Labeling Requirements WARNING Ori
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