AC4790-200A-485 Laird Technologies, AC4790-200A-485 Datasheet - Page 31

• Manufacturer Part Number: AC4790-200A-485
• Description: TXRX 900MHZ 3.3-5.5V FHSS 200MW
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4790-200A-485

• Frequency: 902MHz ~ 928MHz
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: AMR, Fire & Security Alarms, Telemetry
• Power - Output: 5mW ~ 200mW
• Sensitivity: -110dBm
• Voltage - Supply: 3.3V, 5V
• Current - Transmitting: 68mA
• Data Interface: Connector, 2 x 10 Header
• Antenna Connector: On-Board, Chip
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Wireless Frequency: 900 MHz
• Interface Type: 20-pin mini connector
• Board Size: 49 mm x 42 mm x 5 mm
• Modulation: FHSS, FSK
• Security: 1 byte System ID, DES
• Operating Voltage: 3.3 V to 5.5 V
• Output Power: 200 mW
• Antenna: Integral and External Dipole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

C O M M A N D D E S C R I P T I O N S
E n t e r AT C o m ma n d M o d e
Prior to sending this command, the OEM Host must ensure that the
transceiver’s RF transmit buffer is empty. If the buffer is not empty, the
radio will interpret the command as data and it will be sent over the RF.
This can be accomplished by waiting up to one second between the
last packet and the AT command.
E x it A T C o m m an d M o d e
The OEM Host should send this command to exit AT Command mode
and resume normal operation.
F ir m w ar e V er si o n R e q u es t
The OEM Host issues this command to request the firmware of the
transceiver.
C h a n g e C h a n n e l
The OEM Host issues this command to change the channel of the
transceiver.
B ro ad c a st Pa ck e t s
The OEM Host issues this command to change the transceiver
operation between Addressed Packets and Broadcast Packets. If
Addressed Packets are selected, the transceiver will send all packets to
the transceiver designated by the Destination Address programmed in
the transceiver. If Broadcast Packets are selected, the transceiver will
send its packets to all transceivers on that network. Setting bit-7 of API
Control to 1 can also enable Broadcast Packets.
W r i t e D e st i n at i o n Ad d r e s s
The OEM Host issues this command to the transceiver to change the
Destination Address.
Note: Only the three Least Significant Bytes of the MAC Address are
used for packet delivery.
www.lairdtech.com\wireless
Command: 0x41 0x54 0x2B 0x2B 0x2B 0x0D
Number of Bytes Returned: 4
Response: 0xCC 0x43 0x4F 0x4D
Command: 0xCC 0x41 0x54 0x4F 0x0D
Number of Bytes Returned: 4
Response: 0xCC 0x44 0x41 0x54
Command: 0xCC 0x00 0x00
Number of Bytes Returned: 3
Response: 0xCC Version XX
Parameter Range: XX = 0x00 - 0x03 (Ignore)
Command: 0xCC 0x01 Channel
Number of Bytes Returned: 2
Response: 0xCC Channel
Command: 0xCC 0x08 Data1
Number of Bytes Returned: 2
Response: 0xCC Data1
Parameter Range: Data1 = 0x00 for Addressed, 0x01 for
Broadcast
Command: 0xCC 0x10 MAC3 MAC2 MAC1
Number of Bytes Returned: 4
Response: 0xCC MAC3 MAC2 MAC1
Parameter Range: 0x00 - 0xFF corresponding to 3 LSB’s of
destination MAC Address
C O N F I G U R I N G T H E A C 4 7 9 0
2 7