Digi XBee-PRO SX RF User Manual

XBee Radio Frequency (RF) Modems

XBee-PRO SX RF Modem

User Guide

Revision history—90001517

Revision Date Description

A August 2016 Baseline release of the document.

B May 2018 Added note on range estimation. Changed ICto ISED.

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Warranty

To view product warranty information, go to the following website:

www.digi.com/howtobuy/terms

Customer support

Gather support information: Before contacting Digi technical support for help, gather the following

information:

Product name and model

Product serial number (s)

Firmware version

Operating system/browser (if applicable)

Logs (from time of reported issue)

Trace (if possible)

Description of issue

Steps to reproduce

Contact Digi technical support: Digi offers multiple technical support plans and service packages. Contact us at +1 952.912.3444 or visit us at www.digi.com/support.

XBee RF Modems User Guide

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XBee RF Modems User Guide

Contents

XBee RF Modems User Guide

Applicable firmware and hardware 6 General XBee RFModem specifications 6

Regulatory conformity summary 6 Power requirements 6 Communication interface specifications 7 General specifications 8

XBee-PRO SX RF Modem specifications 8

Networking specifications 8 Performance specifications 9

Hardware

Front view (RS-232/RS-485 variant) 12

Power connector 12 RS-232/RS-485 serial port 12 RJ-45 pin signals 13

Front view (Analog/Digital I/O variant) 14

Analog and Digital I/O ports 14 Power connector 14 Phoenix 10-pin connector signals 14

Back view (all variants) 15

RSSI LEDs 16 I/O and associate LEDs 16 USB Mini-B port 16 DIP switch 16 Reset and Commissioning buttons 16 Antenna Port 16

Getting started with the XBee RF Modem

Kit requirements 18

System requirements 18

Additional requirements 18 Identify the kit contents 18 Connect to the USB port 18 Connect to the RS-232 port 19 Configure the device using XCTU 20

Discover local XBee RF Modems 20 Configure a network 23

XBee RF Modems User Guide

Software libraries 24

Operation

Commissioning Pushbutton behavior 26

XBee-PRO SX RF Modem 26 Interfacing protocols 26

RS-232 operation 27

RS-485 (2-wire) half-duplex operation 28

RS-485 (4-wire) full-duplex operation 29

RS-485 connection guidelines 29

Analog input single-ended voltage operation 30

Analog input current loop operation 30

Analog input differential voltage operation 30

Digital input operation 31

Digital sinking driver output operation 31

Configure analog and digital modes 31

Analog and digital I/O sampling 33

Regulatory information

FCC (United States) 36

FCC Part 15 Class B 36

Labeling requirements (FCC 15.19) 36

Modifications (FCC 15.21) 36

XBee RF Modem approved antennas (30 dBm maximum RF power) 37 ISED (Innovation, Science and Economic Development Canada) 42

RF Exposure 42 ACMA (Australia) 42

Power requirements 42

Troubleshooting

Reset the XBee RF Modem 44

XBee RF Modems User Guide

The XBee RF Modem is an enclosed, compact solution that includes an XBee RF Module and supports communication with systems using RS-232, RS-485, USB, analog input, and digital I/O interfaces. The modem's on-board XBee RF module transmits and receives data from other devices on the same wireless network, allowing you to easily make your existing wired systems wireless.

This user guide does not provide a comprehensive description of the XBee modules—it only covers the interfaces and instructions of the XBee RF Modem. For an extensive guide on use of the XBee RF Module being used on your modem, see the appropriate user guide listed below:

n XBee-PRO SX Module: XBee/XBee-PRO SX RF Module User Guide

Applicable firmware and hardware

This manual supports the following firmware:

n XBee-PRO SX RF Modem: 0x900X

It supports the following hardware:

n XBee RS-232/RS-485 RF Modem

n XBee Analog/Digital I/O RF Modem

General XBee RFModem specifications

Regulatory conformity summary

This table describes the agency approvals for the devices.

Country Modem Approval

United States XBee-PRO SX RF Modem Contains FCC ID: MCQ-XBPSX

Canada XBee-PRO SX RF Modem Contains IC: 1846A-XBPSX

Australia XBee-PRO SX RF Modem RCM

Power requirements

The following table describes the power requirements for the XBee RF Modem.

XBee RF Modems User Guide

XBee RF Modems User Guide General XBee RFModem specifications

Specification Condition Value

Supply voltage range 7-30 VDC

Typical supply voltage 12 V

Receive current VCC = 12 V 20 mA

Transmit current VCC = 12 V 300 mA

Sleep current VCC = 12 V 5 mA

Communication interface specifications

The following table provides the device's communication interface specifications.

Specification Condition Value

USB interface baud rate (software selectable) 1200 - 921600 b/s

RS-232 interface baud rate (software selectable) 1200 - 230400 b/s

RS-485 interface baud rate (software selectable) 1200 - 921600 b/s

Analog inputs

Absolute voltage rating (each pin)

Operating input range (observe the absolute voltage ratings shown above)

Input impedance Single-ended

Resolution 10 bits

Accuracy Temperature =

Digital inputs

Input type Non-inverting Schmitt

Maximum: 11 V Minimum: -0.5 V

Single-ended voltage mode

Current loop mode 4 - 20 mA

Differential voltage mode

voltage mode

Current loop mode 120 Ω

Differential voltage mode

25°C

0 - 10 VDC

± 4 VDC

13300 Ω

~1 MΩ

0.5%

trigger gate

Positive-going switching threshold 2.5 V

Negative-going switching threshold 1 V

XBee RF Modems User Guide

XBee RF Modems User Guide XBee-PRO SX RF Modem specifications

Specification Condition Value

Absolute voltage rating (each pin)

Input impedance ~1 MΩ

Digital outputs

Output type Open collector sinking

Maximum sink current 200 mA

Maximum supply voltage for external pull-up resistor 31 V

Resistor pull-ups (switch selectable) 10 kΩ pulled up to 3.3

Maximum: 31 V Minimum: -0.5 V

driver

VDC

General specifications

The following table describes the general specifications for the devices.

Specification Value

Size 4.500" x 2.750" x 1.125" (11.4 cm x 7.0 cm x 2.9 cm)

Weight 150 g (5.3 oz)

Restriction of Hazardous Substances (RoHS) Compliant

Data connection Female RJ-45, 10-pin screw terminal, USB Mini-B

Antenna impedance 50 Ω unbalanced

Maximum input RF level at antenna port 6 dBm

Operating temperature -40 °C -85 °C (industrial)

XBee-PRO SX RF Modem specifications

Networking specifications

Specification Value

Modulation Gaussian Frequency Shift Keying (GFSK)

Spreading technology

Frequency Hopping Spread Spectrum (FHSS)

XBee RF Modems User Guide

XBee RF Modems User Guide XBee-PRO SX RF Modem specifications

Specification Value

Supported network

Peer-to-peer (master/slave relationship not required), point-to-point/point-to-

multipoint, mesh topologies (software selectable)

Encryption

Optional 256-bit Advanced Encryption Standard (AES) encryption which may be

operated in either cipher block chaining (CBC) mode or counter (CTR) mode. Use

the EE command to enable encryption. Use the KY command to set the

encryption key.

Performance specifications

The following table provides the performance specifications for the XBee-PRO SX RF Modem.

Note Range figure estimates are based on free-air terrain with limited sources of interference. Actual

range will vary based on transmitting power, orientation of transmitter and receiver, height of transmitting antenna, height of receiving antenna, weather conditions, interference sources in the area, and terrain between receiver and transmitter, including indoor and outdoor structures such as walls, trees, buildings, hills, and mountains.

Specification Condition Value

Frequency range ISM 902 to 928 MHz

RF data rate (Software selectable) Low data rate 10 kb/s

Middle data rate 110 kb/s

High data rate 250 kb/s

Transmit power (software selectable) Up to 30 dBm

Rural range line of sight Low data rate Up to 105 km (65 mi)

Urban range line of sight Low data rate Up to 18 km (11 mi)

Receiver sensitivity Low data rate -113 dBm

Middle data rate -106 dBm

High data rate -103 dBm

We estimate rural ranges based on a 14.5 km (9 mi) range test with dipole antennas.

Range estimated assuming the urban noise floor is approximately 15 dB higher than rural. The actual range

depends on the setup and level of interference in your location.

XBee RF Modems User Guide

XBee RF Modems User Guide XBee-PRO SX RF Modem specifications

Specification Condition Value

Receiver IF selectivity Low data rate ± 250 kHz 40 dB

Low data rate ± 500 kHz 50 dB

Middle data rate ± 250 kHz 30 dB

Middle data rate ± 500 kHz 40 dB

High data rate ± 500 kHz 30 dB

High data rate ± 1000 kHz 45 dB

Receiver RF selectivity Below 900 MHz and above 930 MHz > 50 dB

XBee RF Modems User Guide

Hardware

Front view (RS-232/RS-485 variant) 12 Front view (Analog/Digital I/O variant) 14 Back view (all variants) 15

XBee RF Modems User Guide

Hardware Front view (RS-232/RS-485 variant)

Front view (RS-232/RS-485 variant)

Number Function

1 RS-232/RS-485 serial port

2 Power connector

Power connector

7 - 30 VDC power connector

RS-232/RS-485 serial port

CAUTION! The RJ-45 port is only for RS-232/RS-485 connections. If you plug in any Power

over Ethernet (PoE) connection, it will damage the port.

Female RJ-45

XBee RF Modems User Guide

XBee RF Modems User Guide 13

Hardware Front view (RS-232/RS-485 variant)

RJ-45 pin signals

The following table describes the pin signals of the RJ-45 connector. Low-asserted signals are distinguished with a horizontal line over the signal name.

For more information on how to use the RS-232 and/or RS-485 functions on the modem, see Interfacing protocols.

RS-232

name RS-232 description

1 RXD

CTS

3 TXD

4 GND

5 GND

RTS

7 DSR/DCD Data-Set-Ready/Data-Carrier-

DTR

Received data Serial data exiting the RF modem

Clear-to-Send flow control Data+

Transmitted data Serial data entering into the RF modem

Request-to-Send flow control Not used RX-

Detect

Data-Terminal-Ready Not used

RS-485 2 wire name RS-485 2 wire description

Data-

Not used RX+

Not used

Negative data line Serial data to and from the RF modem

Positive data line Serial data to and from the RF modem

RS-485 4 wire name RS-485 4 wire description

TX-

TX+

Transmit negative data line Serial data sent from the RF modem

Transmit positive data line Serial data sent from the RF modem

Receive positive data line Serial data received by the RF modem

Receive negative data line Serial data received by the RF modem

Hardware Front view (Analog/Digital I/O variant)

Front view (Analog/Digital I/O variant)

Number Function

1 Analog and digital I/O ports

2 Power connector

Analog and Digital I/O ports

Phoenix 10-pin connector.

Power connector

7-30 VDC power connector.

Phoenix 10-pin connector signals

The following table describes the pin signals of the Phoenix 10-pin connector.

For more information on how to use the Analog and/or Digital functions on the modem, see

Interfacing protocols.

Note We recommend disconnecting the analog and digital lines when the modem is not powered.

XBee RF Modems User Guide

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