AC4490LR-200M Laird Technologies, AC4490LR-200M Datasheet - Page 60

• Manufacturer Part Number: AC4490LR-200M
• Description: TXRX 900MHZ 3.3-5.5V TTL 200MW
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4490LR-200M

• 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
• Output Power: 200 mW
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

A
The API feature set of the AC4490 provides powerful packet routing capabilities to the OEM Host. The number of API
configurations is endless as individual radios can all be configured differently to suit the OEM Host’s varying needs.
Some of the most common implementations are described in the following pages.
P O L L I N G N E T W O R K
Many applications require multiple locations to report back to a single access point. One solution would be to enter
Command mode, change the transceiver’s destination address and then exit Command mode to resume normal
operation. When it is time to communicate with another transceiver, the process would be repeated; costing time and
inevitably reduction in throughput as unnecessary commands are issued. As an alternative, the Transmit API
command can be used to control packet routing on a packet-by-packet basis.
The simplest implementation consists of a smart Shared Access Point (SAP) with a microcontroller or processor of
some type which has transmit API enabled. The SAP controls which transceiver(s) each packet is routed to.
Broadcast packets should be used when all remotes are to receive the same message and addressed packets when
communication with a single remote only is desired. An example of each is shown in the following pages.
PPENDIX
III - API
MAC 12 34 A3
MAC 12 34 A1
MAC 12 34 A5
www.aerocomm.com
6
System ID: 0x01
1
5
Shared Access Point
Channel: 0x10
MAC 12 34 56
2
4
MAC 12 34 A2
MAC 12 34 A6
3
MAC 12 34 A4
III