AC4486-5M Laird Technologies, AC4486-5M Datasheet - Page 42

TXRX 868MHZ 3V TTL 5MW RS232

AC4486-5M

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

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AC4486-5M
Manufacturer:
Laird Technologies Wireless M2
Quantity:
135
AC4486 Specifications
5.2 S
P
OFTWARE
ARAMETERS
Following is a description of all software parameters used to control the AC4486.
5.2.1 RF Architecture (Unicast/Broadcast)
The Server controls the system timing by sending out regular beacons (transparent to the transceiver
Host) which contain system timing information. This timing information synchronizes the Client
transceivers to the Server.
Each network should consist of only one Server. There should never be two Servers on the same RF
Channel Number in the same coverage area as the interference between the two Servers will severely
hinder RF communications.
The AC4486 runs a Peer-to-Peer type architecture where all transceivers, whether Servers or Clients,
can communicate with all other transceivers. To prohibit transceivers from receiving broadcast
packets, Unicast Only can be enabled.
5.2.2 RF Mode
All transceivers located on the same network must use the same RF Mode.
RF Delivery Overview
All packets are sent out over the RF as either addressed or broadcast packets. Addressed packets are
only received by the transceiver specified by Destination Address. If addressed packets are desired,
the Destination Address should be programmed with the MAC ID of the destination transceiver. To
simplify EEPROM programming, Auto Destination can be enabled in Clients which allows the Client to
automatically set its Destination Address to the address of the Server. Broadcast packets are sent out
to every eligible transceiver on the network. If broadcast packets are desired, RF Delivery should be
set to Broadcast.
Acknowledge Mode
In Addressed Acknowledge Mode, the RF packet is sent out to the receiver designated by the
Destination Address. Transmit Retries is used to increase the odds of successful delivery to the
intended receiver. Transparent to the OEM Host, the sending transceiver will send the RF packet to
the intended receiver. If the receiver receives the packet free of errors, it will tell the sender. If the
sender does not receive this acknowledge, it will assume the packet was never received and retry the
packet. This will go on until the packet is successfully received or the transmitter exhausts all of its
retries. The received packet will only be sent to the OEM Host if and when it is received free of errors.
In Broadcast Acknowledge Mode, the RF packet is broadcast out to all eligible receivers on the
network. Broadcast Attempts is used to increase the odds of successful delivery to the intended
receiver(s). Transparent to the OEM Host, the sending transceiver will send the RF packet to the
intended receiver. If the receiver detects a packet error, it will throw out the packet. This will go on until
the packet is successfully received or the transmitter exhausts all of its attempts. Once the receiver
successfully receives the packet it will send the packet to the OEM Host. It will throw out any
duplicates caused by further Broadcast Attempts. The received packet will only be sent to the OEM
Host if it is received free of errors.
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