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5.2

5.2

5.2

5.2     SSSS

OFTWARE 

OFTWARE 

OFTWARE 

OFTWARE 

PPPP

ARAMETERS

ARAMETERS

ARAMETERS

ARAMETERS

    

Below is a description of all software parameters used to control the AC4424. 

5.2.1

5.2.1

5.2.1

5.2.1     RF Architecture (Server

RF Architecture (Server

RF Architecture (Server

RF Architecture (Server----Client/Peer

Client/Peer

Client/Peer

Client/Peer----to

to

to

to----Peer)

Peer)

Peer)

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

RF Channel Number

RF Channel Number

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

only

only

only 

communicate with the Server.  Enabling Peer

Peer

Peer

Peer----to

to

to

to----Peer Mode

Peer Mode

Peer Mode

Peer Mode will allow all radios on the network 

to communicate with each other.  Note:  All transc

Note:  All transc

Note:  All transc

Note:  All transceivers on the same network must have the 

eivers on the same network must have the 

eivers on the same network must have the 

eivers on the same network must have the 

same setting for Peer

same setting for Peer

same setting for Peer

same setting for Peer----to

to

to

to----Peer and there must still be one, and only one, Server present in a 

Peer and there must still be one, and only one, Server present in a 

Peer and there must still be one, and only one, Server present in a 

Peer and there must still be one, and only one, Server present in a 

Peer

Peer

Peer

Peer----to

to

to

to----Peer network.

Peer network.

Peer network.

Peer network.    

5.2.2

5.2.2

5.2.2

5.2.2    RF Mode

RF Mode

RF Mode

RF Mode    

Acknowledge Mode

Acknowledge Mode

Acknowledge Mode

Acknowledge Mode    

In Addressed Acknowledge Mode, the RF packet is sent out to the receiver designated by the 
Destination Address

Destination Address

Destination Address

Destination Address.  Transmit Retries

Transmit Retries

Transmit Retries

Transmit Retries are 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

Broadcast Attempts

Broadcast Attempts

Broadcast Attempts are 

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. 

 

Summary of Contents for AC4424

Page 1: ...s Manual User s Manual User s Manual User s Manual Version 2 1 Version 2 1 Version 2 1 Version 2 1 11160 THOMPSON AVENU 11160 THOMPSON AVENU 11160 THOMPSON AVENU 11160 THOMPSON AVENUE E E E LENEXA KS...

Page 2: ...ir or replace the OEM transceiver at their discretion If the product is replaced it may be a new or refurbished product Copyright Copyright Copyright Copyright Information Information Information Info...

Page 3: ...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...

Page 4: ...Forced Acquisition Sync 23 4 5 3 Server Client 23 4 5 4 Sync Channel 24 4 5 5 Power Down 25 4 5 6 Power Down Wake Up 25 4 5 7 Broadcast Mode 25 4 5 8 Write Destination Address 26 4 5 9 Read Destinati...

Page 5: ...s Figures Figure 1 RSSI Voltage vs Received Signal Strength 30 Figure 2 AC4424 with MMCX 37 Figure 3 AC4424 with Integral Antenna 38 Tables Tables Tables Tables Table 1 Pin Definitions 10 Table 2 DC I...

Page 6: ...ata transmission reception is performed by the transceiver The AC4424 transceivers can be used as a direct serial cable replacement requiring no special Host software for operation They also feature a...

Page 7: ...5 5 5 8 2007 8 2007 8 2007 8 2007 7 7 7 7 The OEM is responsible for ensuring the final product meets all FCC and or appropriate regulatory agency requirements listed herein before selling any produc...

Page 8: ...bytes each RADIO RADIO RADIO RADIO Frequency Band US Canada 10mW 100mW 200mW 2 402 2 478 GHz Europe Japan Low Band 100mW 9AJ 2 406 2 435 GHz Europe Japan High Band 100mW 9AJ 2 444 2 472 GHz Radio Type...

Page 9: ...5 5 5 5 8 2007 8 2007 8 2007 8 2007 9 9 9 9 AC4424 100 MMCX Jack AC4424 200 MMCX Jack Weight Less than 0 7 ounce...

Page 10: ...n the OEM Host is ready to accept data from the transceiver NOTE Keeping RTS High for too long can cause data loss 9 NC No Connect 10 PWR VCC 5V 2 50mV ripple 11 PWR VCC 5V 2 50 mV ripple 12 I O 9600_...

Page 11: ...5 0 5 0 2Vcc 0 1 V 14 I WR_ENA 0 7Vcc Vcc 1 0 3 0 5 V 15 I UP_RESET 0 7Vcc Vcc 0 5 0 5 0 2Vcc 0 1 V 17 I Command Data 0 2Vcc 0 9 Vcc 0 5 0 5 0 2Vcc 0 1 V Table Table Table Table 3 3 3 3 DC Output Volt...

Page 12: ...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 The only supported mode is asynchronous The...

Page 13: ...Addressed Acknowledge Mode with No Interface Timeout Broadcast Acknowledge Mode with No Interface Timeout Broadcast Acknowledge Mode with No Interface Timeout Broadcast Acknowledge Mode with No Interf...

Page 14: ...oadcast Acknowledge M Broadcast Acknowledge Mode with Interface Timeout ode with Interface Timeout ode with Interface Timeout ode with Interface Timeout Local_RXD Local_RF_TXD Remote_RF_TXD Remote_TXD...

Page 15: ...figuring the AC4424 Configuring the AC4424 4 1 4 1 4 1 4 1 EEPROM P EEPROM P EEPROM P EEPROM PARAMETERS ARAMETERS ARAMETERS ARAMETERS A Host can program various parameters that are stored in EEPROM an...

Page 16: ...omm Use Only AeroComm Use Only AeroComm Use Only Bit 6 AeroComm Use Only AeroComm Use Only AeroComm Use Only AeroComm Use Only Bit 5 Sync to Channel 0 Don t Sync to Channel 1 Sync to Channel Bit 4 Aer...

Page 17: ...packets are selected Broadcast Attempts 4DH 1 01 FFh 04h Maximum number of times a packet is sent out when Broadcast packets are selected API Control 56H 1 01000011 b 43h Settings are Bit 7 AeroCo Aer...

Page 18: ...tion for RF packets System ID 76H 1 00 FFh 01h Similar to network password Radios must have the same system ID to communicate with each other MAC ID 80H 6 6 Bytes Unique IEEE MAC Address Parameter Par...

Page 19: ...24 1 1 Resetting the AC4424 at any time will exit Configuration or CC Command mode No No No Send CC Command Send Enter AT Command Software Configuration Take Pin 17 High Receive Mode Send CC Commands...

Page 20: ...rmal Operation 02h Server in Acquisition Sync 03h Client in Acquisition Sync CCh Firmware Version 00h Server in Normal Operation 01h Client in Normal Operation 02h Server in Acquisition Sync 03h Clien...

Page 21: ...and ing the Enter AT Command mode command ing the Enter AT Command mode command 4 4 1 4 4 1 4 4 1 4 4 1 Enter AT Command Mode Enter AT Command Mode Enter AT Command Mode Enter AT Command Mode Prior to...

Page 22: ...mand 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...

Page 23: ...annel Number Hexadecimal Transceiver Response Transceiver Response Transceiver Response Transceiver Response Byte 1 CCh Byte 2 RF Channel Number Hexadecimal 4 5 3 4 5 3 4 5 3 4 5 3 Server Client Serve...

Page 24: ...e sent to a Server that already has Sync to Channel enabled This will change the Server s Sync Channel setting Host Command Host Command Host Command Host Command Byte 1 CCh Byte 2 05h Byte 3 New Chan...

Page 25: ...decimal 4 5 6 4 5 6 4 5 6 4 5 6 Power Power Power Power Down Wake Down Wake Down Wake Down Wake Up Up Up Up The Power Down Wake Up Command is issued by the Host to bring the transceiver out of power d...

Page 26: ...ead Destination Address Read Destination Address Read Destination Address The Host issues this command to the transceiver to read the Destination Address This is a ve ve ve very powerful ry powerful r...

Page 27: ...er of write cycles that can be performed is 100 000 can be performed is 100 000 can be performed is 100 000 can be performed is 100 000 OEM Host Command OEM Host Command OEM Host Command OEM Host Comm...

Page 28: ...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 CT...

Page 29: ...w at the start of a received RF packet and transition logic High at the completion of the packet 5 1 6 5 1 6 5 1 6 5 1 6 RSSI pin 13 RSSI pin 13 RSSI pin 13 RSSI pin 13 Received Signal Strength Indica...

Page 30: ...umber Number Number Number AC4424 10 0050 00025 0050 00036 AC4424 10A N A 0050 00029 AC4424 100 N A 0050 00037 or 0050 00075 AC4424 200 0050 00030 0050 00045 5 1 7 5 1 7 5 1 7 5 1 7 Wr_ENA EEPROM Writ...

Page 31: ...c Low transceiver interprets Host data as command data see Section 4 Configuring the AC4424 see Section 4 Configuring the AC4424 see Section 4 Configuring the AC4424 see Section 4 Configuring the AC44...

Page 32: ...a Peer and there must still be one and only one Server present in a Peer Peer Peer Peer to to to to Peer network Peer network Peer network Peer network 5 2 2 5 2 2 5 2 2 5 2 2 RF Mode RF Mode RF Mode...

Page 33: ...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 n...

Page 34: ...2 7 5 2 7 5 2 7 5 2 75 2 6 5 2 6 5 2 6 5 2 6 Serial Interface Baud Rate Serial Interface Baud Rate Serial Interface Baud Rate Serial Interface Baud Rate This two byte value determines the baud rate u...

Page 35: ...ement 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 Three Channel sets are provided for th...

Page 36: ...It should only been optimized for 115 200 baud Acknowledge Mode and all lower baud rates It should only be disabled with recommendation from AeroComm be disabled with recommendation from AeroComm be d...

Page 37: ...ucts measure 1 65 W x 2 65 L Critical parameters are as follows J1 J1 J1 J1 20 pin OEM interface connector Samtec TMM 110 01 L D SM mates with Samtec SMM 110 02 S D MMCX Jack MMCX Jack MMCX Jack MMCX...

Page 38: ...AC4424 Specifications AC4424 Specifications 5 5 5 5 8 2007 8 2007 8 2007 8 2007 38 38 38 38 Figure Figure Figure Figure 3 3 3 3 AC4424 with Integral AC4424 with Integral AC4424 with Integral AC4424 wi...

Page 39: ...UMBERS UMBERS SDK SDK SDK SDK 4424 4424 4424 4424 9AJ 9AJ 9AJ 9AJ Includes 2 AC4424 9AJ transceivers 2 RS232 Serial Adapter Boards 2 6Vdc unregulated power supplies 2 Serial cables configuration testi...

Page 40: ...clearly visible on the outside of the equipment 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...

Page 41: ...rence that may cause undesired operation WARNING WARNING WARNING WARNING The Original Equipment Manufacturer OEM must ensure that FCC labeling requirements are met This includes a clearly visible labe...

Page 42: ...ll product in be notified prior to shipping product Further information about this regulation can be found in Article 6 4 of the R TTE Directive Caution Caution Caution Caution Any changes or modifica...

Page 43: ...i Directional 5 X 6 MP24013TMSMARP12 Maxrad Panel 13 X 7 MUF24005M174MSMARP1 2 Maxrad Omni Directional 5 X 8 MC2400 Maxrad Patch 2 5 X 9 NZH2400 MMCX External AeroComm Microstrip 1 X X 10 NZH2400 I In...

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