AC4486-5M Laird Technologies, AC4486-5M Datasheet - Page 38

• Manufacturer Part Number: AC4486-5M
• Description: TXRX 868MHZ 3V TTL 5MW RS232
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4486-5M

• Frequency: 868MHz
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: FSK
• Applications: AMR, Gaming Devices, Inventory Tracking
• Power - Output: 5mW
• Sensitivity: -100dBm
• Voltage - Supply: 3.3V
• Current - Receiving: 30mA
• Current - Transmitting: 40mA
• Data Interface: Connector, 2 x 10 Header
• Antenna Connector: MMCX
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Board Size: 49 mm x 42 mm x 5 mm
• Output Power: 5 mW
• Antenna: External MMCX Connector
• Frequency Rf: 869.65MHz
• Transmit Power: 5mW
• Interface Type: Serial
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AC4486 Specifications
5. Theory of Operation
5.1 H
ARDWARE INTERFACE
Below is a description of all hardware pins used to control the AC4486.
5.1.1 GIn (Generic Inputs 0 and 1) (pins 4 and 14 respectively) and GOn
(Generic Outputs 0 and 1) (pins 1 and 9 respectively)
Both GIn pins serve as generic input pins. Both GOn pins serve as generic output pins. Reading and
On-the-Fly
writing of these pins can be performed using CC Commands (details can be found in the
Control Command Reference
). These pins alternately serve as control pins when Modem Mode is
enabled in the EEPROM.
5.1.2 TXD (Transmit Data) and RXD (Receive Data) (pins 2 and 3 respectively)
Serial TTL
The AC4486 accepts 3.3 or 5VDC TTL level asynchronous serial data (the 500mW/
1000mW
transceiver ONLY accepts 3.3V level signals) on the RXD pin and interprets that data as either
Command Data or Transmit Data. Data is sent from the transceiver, at 3.3V levels, to the OEM Host via
the TXD pin.
RS-485
When equipped with an onboard RS-485 interface chip, TXD and RXD become the half duplex RS-485
pins. In this mode, the transceiver will be in listen mode except when it has data to send to the OEM
host. TXD is the noninverted representation of the data (RS485A) and RXD is a mirror image of TXD
(RS485B). The transceiver will still use RTS (if enabled) in this mode.
5.1.3 Hop F ame (pin 6)
r
Hop Frame transitions logic Low at the start of a hop and transitions logic High at the completion of a
hop. The OEM Host is not required to monitor Hop Frame. The AC4486 is a single frequency
transceiver, though it still generates a Hop Frame signal every time it transmits a timing beacon.
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