AMB8355 - AMBER WIRELESS GMBH

AMB8355

Long-Range Data Modem

868 MHz Band

Key Features

• Multi-channel, narrowband RF data modem

• Transmit power 500 mW

• Range up to 20km (line of sight)

• RF data rates up to 19.2 kbps

• Integrated microcontroller (8 kbyte data buffer)

• Flexible software stack to suit a wide range of

applications

• Complies with R&TTE directive 1999/5/EC

• Licence-free within Europe

Network Topologies

Point-to-Point

Point-to-Multipoint

Description

The AMB8355 is a powerful OEM radio data modem enabling cable-free and

reliable transmission of data over long distances. The embedded

microprocessor controls the complete wireless data communication, thus

handling packet and checksum formation, addressing, monitoring of channel

access and resending of unacknowledged data packets. A buffer memory is

provided to enable transmission and reception of data independently of the

connected host controller. The radio modem can be used as a transparent

cable replacement.

The AMB8355 features a command set of various transmission modes to

meet the requirements of the respective application. It provides a broadcast

operation mode and it enables the user to address up to 255 devices per

channel.

The GUI for the freely available Windows application AMBER-ACC makes it

easy to set the operating parameters. The configuration of the parameters

can alternatively be realised by means of AT-commands.

Interface

The AMB8355 is connected to a host system via RS-232 or 3.3V-TTL UART-

interface with data rates of up to 115.2 kbaud. Alternative host interface

options: RS-485 or USB.

Scope of Application

Telemetry, wide-ranging data collection, monitoring, surveying, remote

control and sensor networks.

AMBER wireless GmbH assumes that the statements made in this data sheet are correct at the time of issue. AMBER wireless GmbH reserves the right to make changes to

technical specifications or product functions without prior notice. AMBER wireless GmbH does not assume any responsibility for the use of the described products, neither does it

convey any license under its patent rights. All trademarks, registered trademarks and product names are the property of their owners.

AMB8355



2010 AMBER wireless GmbH AMB8355 DS V1.4

Dimensions

Pin Assignment ST1

Name

Description

1 AD6 Reserved

2 GND Negative supply voltage

3 VCC Positive supply voltage

4 CTS1

Clear to send

5 RTS1

Request to send

6 TXD1

Transmit data

7 RXD1

Receive data

8 DTR1

Data terminal ready

9 DSR1

Data set ready

Specifications

Range* ≥ 20 km (line of sight)

RF data rate 2.4 / 4.8 / 9.6 and 19.2 kbaud

Interface data rate Up to 115.2 kbaud (UART)

Output power 27dBm (@ 50 Ω, adjustable)

Performance

RF sensitivity -110 dBm (@ 50 Ω, 4.8 kbaud)

Power supply 7 to 30 Volt

Current consumption TX: 530 mA (7 V), 125mA (30 V)

RX: 75 mA (7 V), 30mA (30 V)

Dimensions 97 x 38 x 19 mm³

Operating temperature -30 to +70 °C

Weight 45 g

Antenna connector SMA female

Status indication 4 LEDs (Power, Status, RX, TX)

Microprocessor ATMEL AT91SAM7S64

General

RF transceiver 500 mW transceiver AMB8315

Addressing Up to 255 nodes

Frequency range 869.40 to 869.65 MHz

Channel spacing 25, 50 and 100 kHz (depending on RF data rate)

Number of channels Up to 8 (depending on RF data rate)

Modulation 2-GFSK

RF technology

Supported topologies Point-to-Point, Point-to-Multipoint

* Range stated is calculated assuming line-of-sight. Actual range will vary based upon specific board integration, antenna selection, and environment.