AC4790-200M-485 Laird Technologies, AC4790-200M-485 Datasheet - Page 32

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

Specifications of AC4790-200M-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: MMCX
• 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

2 8
C O N F I G U R I N G T H E A C 4 7 9 0
R ea d D e st i n at i o n Ad d r es s
The OEM Host issues this command to the transceiver to read the
destination address.
Note: Only the three Least Significant Bytes of the MAC Address are
used for packet delivery.
A ut o D es t i na t i o n
The Host issues this command to change the Auto Destination setting.
When issuing this command, the Auto Destination setting will only be
changed if the corresponding enable bit is set (Control1 Parameter,
EEPROM address 0x56, bit-4).
R ea d A P I Co n t r o l
The OEM Host issues this command to read the API Control byte.
W ri t e A PI Co n t r o l
The OEM Host issues this command to write the API Control byte.
Se t M ax Powe r
The OEM Host issues this command to limit the maximum transmit
power emitted by the transceiver. This can be useful to minimize
current consumption and satisfy certain regulatory requirements. The
radios are shipped at maximum allowable power.
R ea d T e m p er at u r e
The OEM Host issues this command to read the onboard temperature
sensor. The transceiver reports the temperature in
0x80 corresponds to 0 - 80
40 - 0
o
C.
o
C and where 0xD8 - 0x00 corresponds to -
o
C where 0x00 -
Command: 0xCC 0x11
Number of Bytes Returned: 4
Response: 0xCC MAC3 MAC2 MAC1
Parameter Range: 0x00 - 0xFF corresponding to 3 LSB’s of
destination MAC Address
Command: 0xCC 0x15 Data1
Number of Bytes Returned: 2
Response: 0xCC Data2
Parameter Range: Data1 = bit-0: Auto Destination, bit-4:
Enable Auto Destination modification; Data2 = bit-0: New
Auto Destination setting, bits 2 - 7:0
Command: 0xCC 0x16
Number of Bytes Returned: 2
Response: 0xCC API Control
Command: 0xCC 0x17
Number of Bytes Returned: 2
Response: 0xCC API Control
Command: 0xCC 0x25 Max Power
Number of Bytes Returned: 2
Response: 0xCC Max Power
Command: 0xCC 0xA4
Number of Bytes Returned: 2
Response: 0xCC Temperature
Parameter Range: Temperature = 0xD8 - 0x80