AC4490-200M-485 Laird Technologies, AC4490-200M-485 Datasheet - Page 62

• Manufacturer Part Number: AC4490-200M-485
• Description: TXRX 900MHZ 3.3-5.5V TTL 200MW
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4490-200M-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
• 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

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A P P E N D I X I I I - A P I
The remote response is dependent on the OEM’s specific needs and equipment. In many cases, remote radios are
connected to dumb devices without the intelligence to filter out or append specific portions of a packet that is
transmitted or received. Since the 7 bytes of overhead in the Transmit API command are not sent over the RF, the
remotes will receive only the payload data, “STATUS”. If auto destination is enabled on the remote radio, the
transceiver will automatically change its destination address to that of the radio it last received a packet from. When
the remote device sends its response, it will therefore automatically be routed back to the SAP.
Depending on the API configuration of the SAP, the packet will be received in one of two formats:
R e c e i v e A P I
When Receive API is enabled, the transceiver will receive the reply data + the MAC address of the source radio.
When Receive API is enabled, every packet received by the transceiver will be sent to the Host in the following format.