CJune 2016 Added a drawing of the pinout locations.
DMay 2018Added note on range estimation. Changed ICto ISED.
EJune 2019 Added FCC publication 996369 related information.
Baseline release of the document.
Removed Australian certification information. Updates various specifications
including the dimensions. Added the HScommand.
Trademarks and copyright
Digi, Digi International, and the Digi logo are trademarks or registered trademarks in the United
States and other countries worldwide. All other trademarks mentioned in this document are the
property of their respective owners.
Information in this document is subject to change without notice and does not represent a
commitment on the part of Digi International. Digi provides this document “as is,” without warranty of
any kind, expressed or implied, including, but not limited to, the implied warranties of fitness or
merchantability for a particular purpose. Digi may make improvements and/or changes in this manual
or in the product(s) and/or the program(s) described in this manual at any time.
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
XTend vB DigiMesh RF Module User Guide
2
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.
Feedback
To provide feedback on this document, email your comments to
Include the document title and part number (XTend vB DigiMesh RF Module User Guide, 90001479 B)
in the subject line of your email.
techcomm@digi.com
XTend vB DigiMesh RF Module User Guide
3
Contents
XTend vB DigiMesh RF Module User Guide
Applicable firmware and hardware11
XTend replacement numbers11
Certification overview11
Development Kit
Development Kit contents13
Interface hardware13
XTIB-R RS-232/485 Interface Board14
Configuration switch14
I/O and Power LEDs15
Serial port15
RSSI LEDs15
Power connector15
XTIB-R DIP switch15
Adapters16
NULL Modem Adapter (male-to-male)17
NULL Modem Adapter (female-to-female)17
Serial Loopback Adapter17
Male DB-9 to RJ-45 Adapter18
Female DB-9 to RJ-45 Adapter18
Interface protocols19
RS-232 operation19
RS-485 (2-wire) operation22
RS-485 (4-wire) and RS-422 operation24
Technical specifications
General specifications28
Performance specifications28
Networking specifications28
Power requirements29
Regulatory conformity summary29
Hardware
Connect the hardware31
Mechanical drawings32
XTend vB DigiMesh RF Module User Guide
4
Pin signals32
Modes
Transparent and API operating modes36
Transparent operating mode36
API operating mode36
Receive mode36
Transmit mode37
Command mode37
Enter Command mode37
Troubleshooting38
Send AT commands38
Response to AT commands39
Apply command changes39
Make command changes permanent39
Exit Command mode39
Operation
Serial interface41
UART data flow41
Serial data41
Flow control41
Data In (DIN) buffer and flow control42
Data Out (DO) buffer and flow control43
Networking methods
The MAC and PHY layers45
64-bit addresses45
Make a unicast transmission46
Delivery methods46
Point to Point / Point to Multipoint (P2MP)46
Repeater/directed broadcast46
DigiMesh networking47
AT commands
Addressing commands52
CI (Cluster ID)52
DH (Destination Address High)52
DL (Destination Address Low)52
NI (Node Identifier)52
NO (Network Discovery Options)53
NT (Network Discovery Back-off)53
SH (Serial Number High)54
SL (Serial Number Low)54
TO (Transmit Options)54
Command mode options55
CC (Command Character)55
CT (Command Mode Timeout)55
GT (Guard Times)55
XTend vB DigiMesh RF Module User Guide
5
Diagnostic commands56
%H (MAC Unicast One Hop Time)56
%V (Board Voltage)56
%8 (MAC Broadcast One Hop Time)56
BC (Bytes Transmitted)56
DB (Last Packet RSSI)57
EA (MAC ACK Failure Count)57
ER (Receive Count Error)57
GD (Good Packets Received)58
RC (RSSI for channel)58
R# (Reset Number)58
TR (Transmission Failure Count)59
UA (Unicasts Attempted Count)59
Firmware commands59
Network commissioning and diagnostics124
Local configuration124
Remote configuration124
Send a remote command124
Apply changes on remote devices124
Remote command response124
Establish and maintain network links125
Build aggregate routes125
DigiMesh routing examples125
Replace nodes126
Test links in a network - loopback cluster126
Test links between adjacent devices127
Example128
RSSI indicators129
Discover all the devices on a network129
Trace route option130
NACK messages131
Regulatory information
FCC (United States)133
OEM labeling requirements133
FCC notices133
XTend vB DigiMesh RF Module User Guide
8
RF exposure statement134
FCC antenna certifications134
XTend vB RF Module antenna options135
FCC publication 996369 related information140
ISED (Innovation, Science and Economic Development Canada)142
Labeling requirements142
Transmitters for detachable antennas142
Detachable antennas142
XTend vB DigiMesh RF Module User Guide
9
XTend vB DigiMesh RF Module User Guide
The XTend vB RF Module was engineered to provide customers with an easy-to-use radio frequency
(RF) solution that provides reliable delivery of critical data between remote devices. The module
transfers a standard asynchronous serial data stream, operates within the ISM 900 MHz frequency
band and operates at an RF data rate of 125 kb/s.
Applicable firmware and hardware11
XTend replacement numbers11
Certification overview11
XTend vB DigiMesh RF Module User Guide
10
XTend vB DigiMesh RF Module User GuideApplicable firmware and hardware
Applicable firmware and hardware
This manual supports the following firmware:
nn 8xxx for XTend DigiMesh
It supports the following hardware:
n As the name suggests, the XTend vB RF Module is form factor and over the air compatible with
our XTend module.
XTend replacement numbers
The following table provides the part numbers you can use to replace XTend devices with the XTend
vB RF Module.
Legacy part numberReplacement part number
XT09-MIXTP9B-DPM-001
XT09-SIXTP9B-DPS-001
XT09-MI-MESHXTP9B-DMM-001
XT09-SI-MESHXTP9B-DMS-001
Certification overview
The XTend vB RF Module contains an FCC/IC approved RF module. For usage requirements, see
Regulatory information.
ISM (Industrial, Scientific and Medical) license-free 902-928 MHz frequency band.
Manufactured under ISO 9001:2000 registered standards.
The XTend vB RF Module Development Kit includes the hardware and software you need to rapidly
create long-range wireless links between devices. The following table shows the contents of the kit.
1Long range 900 MHz RF Module(with RPSMA connector)XTP9B-
DPS-001
1Long range 900 MHz RF Module (with MMCX antenna)XTP9B-
DPM001
HASM675
A09-
MMCX
2Enables communication to RS-232 devicesXTIB-R
2Connects interface board to devices having an RS-232 serial
port
1Connects to the female RS-232 (DB-9) serial connector of the
Digi Interface Board and can be used to configure the device
to function as a repeater (for range testing)
1Connects to the female RS-232 (DB-9) serial connector of the
Digi Interface Board and can be used to connect the device
to another DCE (female DB9) device
HABMMP5I
JD2D3CDS-6F
JD2D3CDL-A
JD2D2CDN-A
NULL modem
adapter
(female-tofemale)
Male DB-9 to
RJ-45 adapter
Female DB-9 to
RJ-45 adapter
Power adapter2Allows you to power the Interface Board with a 110 V AC
1Used to bypass radios to verify serial cabling is functioning
1Facilitates adapting the DB-9 connector of the Digi Interface
1Facilitates adapting the DB-9 connector of the Digi Interface
Interface hardware
The XTend vB RF Module Development Kit includes a pair of RS-232 interface boards that support the
RS-232, RS-485 and RS-422 protocols. When you mount the devices to the interface boards, the boards
XTend vB DigiMesh RF Module User Guide
properly
Board to a CAT5 cable (male DB9 to female RJ45)
Board to a CAT5 cable (female DB9 to female RJ45)
power supply (not included with international (-INT)
development kits)
JD3D3CDN-A
JE1D2CDA-A
JE1D3CDA-A
JP4P29V10-6F
13
Development KitXTIB-R RS-232/485 Interface Board
provide the following development tools:
n Fast and direct connection to serial devices (such as PCs) and easy access to the device
registries. The parameters stored in the registry allow you to customize the devices to suit the
specific needs of your data systems.
n External DIP switch to automatically configure common device profiles.
n Signal conversion between TTL levels and RS-232 levels.
The Digi Interface board can connect the device to any device that has an available RS-232, RS-485 or
RS-422 connection.
This documentation refers to a XTend vB RF Module mounted to an interface board as a "Module
Assembly."
XTIB-R RS-232/485 Interface Board
The following figure shows a front view of the board. The table explains the numbered callouts in the
figure.
Number Description
1Configuration switch
2I/O and Power LEDs
3DB-9 Serial port
4RSSI LEDs
5Power connector
Configuration switch
The Configuration switch provides an alternate method for entering Command mode. To enter
Command mode at the device's default RF data rate, hold the Configuration switch down for two
seconds.
XTend vB DigiMesh RF Module User Guide
14
Development KitXTIB-R RS-232/485 Interface Board
I/O and Power LEDs
The LEDS visualize status information and indicate device activity as follows:
LED
color
YellowTopSerial data out (to the host)
GreenMiddleSerial data in (from the host)
RedBottomPower/TX indicator (the red light is on when powered, it pulses on and off
LED
locationIndication
briefly during RF transmission)
Serial port
The serial port is a standard female DB-9 (RS-232) connector. You can also use this connector for RS485 and RS-422 connections.
RSSI LEDs
The RSSI LEDs indicate the amount of fade margin present in an active wireless link. Fade margin is
the difference between the incoming signal strength and the device's receiver sensitivity. The LED
indications are as follows:
Number of LEDs on Indicates
3Very strong signal (> 30 dB fade margin)
2Strong signal (> 20 dB fade margin)
1Moderate signal (> 10 dB fade margin)
0Weak signal (< 10 dB fade margin)
Power connector
7-28 VDC power connector (center positive, 5.5/2.1 mm). The XTIB-R interface board can accept
voltages as low as 5 V. Contact Digi Technical Support to enable this option.
XTIB-R DIP switch
The DIP switch automatically configures the device to operate in different modes during the power-on
sequence. Each time the Module Assembly (interface board with a device) powers-on, intelligence on
the board programs the attached device according to the positions of the DIP Switch.
The following figure illustrates the DIP switch settings.
XTend vB DigiMesh RF Module User Guide
15
Development KitAdapters
Automatic DIP switch configurations
Each time you power on the Module Assembly, the firmware sends AT commands to the on-board RF
module as dictated by the positions of the DIP switches. The following figure shows the DIP switch
with the various configurations.
The following table shows the commands that the firmware sends to the module as a result of DIP
switch settings. DIP switches 3 and 4 are only used for RS-485/422 termination and do not affect the
configuration of the device. In the tables, SW means switch.
Switch condition BehaviorCommands sent during power-up
Switches 1 and 2: Restore defaults / serial interfacing
SW1: ON (up)
SW2: ON (up)
SW1: ON (up)
SW2: OFF (down)
SW1: OFF (down)
SW2: OFF (down)
Adapters
The development kit includes several adapters that facilitate the following functions:
n Performing range tests
n Testing cables
n Connecting to other RS-232 DCE and DTE devices
n Connecting to terminal blocks or RJ-45 (for RS-485/422 devices)
Restore defaultsRE (restore defaults)
WR (write defaults to non-volatile memory)
RS-232 operationCS 0 (RS-232, CTS flow control)
RS-485/422 operation CS 3 (RS-485 or RS-422 operation)
XTend vB DigiMesh RF Module User Guide
16
Development KitAdapters
NULL Modem Adapter (male-to-male)
Part Number: JD2D2-CDN-A (Black, DB-9 M-M)
The male-to-male NULL modem adapter is used to connect two DCE devices. A DCE device connects
with a straight-through cable to the male serial port of a computer (DTE). The following image shows
the Male NULL modem adapter and its pinouts.
NULL Modem Adapter (female-to-female)
Part Number: JD3D3-CDN-A (Gray, DB-9 F-F)
Use the female-to-female NULL modem adapter to verify that serial cabling is functioning properly. To
test cables, insert the female-to-female NULL modem adapter in place of a pair of device assemblies
(RS-232 interface board and XTend vB RF Module) and test the connection without devices in the
connection.
The following figure shows the adapter and its pinouts.
Serial Loopback Adapter
Part Number: JD2D3-CDL-A (Red, DB-9 M-F)
Use the serial loopback adapter for range testing. During a range test, the serial loopback adapter
causes the device to function as a repeater by looping serial data back into the device for
retransmission.
The following image shows the adapter and its pinouts.
XTend vB DigiMesh RF Module User Guide
17
Development KitAdapters
Male DB-9 to RJ-45 Adapter
Part Number: JD2D2-CDN-A (Yellow)
This adapter facilitates adapting the DB-9 connector of the Interface Board to a CAT5 cable (male DB9
to female RJ45).
For connection guidelines, see RS-485 (4-wire) and RS-422 operation.
The following image shows the adapter and its pinouts.
Female DB-9 to RJ-45 Adapter
Part Number: JD3D3-CDN-A (Green) This adapter facilitates adapting the DB-9 Connector of the
Interface Board to a CAT5 cable (female DB9 to female RJ45).
For connection guidelines, see ‘RS-485 (4-wire) & RS-422 Operation’ sections.
The following image shows the adapter and its pinouts.
XTend vB DigiMesh RF Module User Guide
18
Development KitInterface protocols
Interface protocols
The XTend vB RF Module Module Assembly supports the following interfacing protocols:
n RS-232
n RS-485 (2-wire) half-duplex
n RS-485 (4-wire) and RS-422
RS-232 operation
The following figures show the RS-232 DIP switch settings and the pins used on the female RS-232
(DB-9) serial connector. The Module Assembly reads and applies the DIP switch settings only during
power-on.
The following table provides the RS-232 signals and their implementations on the Module Assembly.
Low-asserted signals have a horizontal line over the pin name.
XTend vB DigiMesh RF Module User Guide
19
Development KitInterface protocols
RS-232
DB-9
name
pin
1DCDGPO2Data-
2RXDDOUTReceived
3TXDDINTransmitted
4DTRGPI2Data-
5GND-Ground
6DSRGPO2Data-Set-
7RTS /
CMD
XCTU
nameDescription Implementation
CarrierDetect
Data
Data
TerminalReady
Signal
Ready
GPI1Request-to-
Send /
Command
Mode
Connected to DSR (pin6 of DB-9)
Serial data exiting the Module Assembly (to host)
Serial data entering into the Module Assembly (from host)
Can enable power-down on the Module Assembly
Ground
Connected to DCD (pin1 of DB-9)
Provides RTS flow control or enables Command mode
8CTS
9RI-Ring
GPO1
Clear-toSend
Indicator
Provides CTS flow control
Optional power input that is connected internally to the
positive lead of the front power connector
RS-232 wiring diagrams
The following diagram shows the DTE device (RS-232, male DB-9 connector) wired to a DCE Module
Assembly (female DB-9).
XTend vB DigiMesh RF Module User Guide
20
Development KitInterface protocols
The following diagram shows the DCE Module Assembly (female DB-9 connector) wired to a DCE
device (RS-232, male DB-9).
XTend vB DigiMesh RF Module User Guide
21
Development KitInterface protocols
RS-485 (2-wire) operation
When operating within the RS-485 protocols, all communications are half-duplex. The Module
Assembly reads and applies the DIP switch settings only during power-on.
The following figure shows the RS-485 (2-wire) half-duplex DIP switch settings.
The following figure shows the RS-485 (2-wire) with termination (optional) DIP switch settings.
Enabling termination activates a 120 Ω resistor between T+ and T-.
The following figure shows the pins that the female RS-232 (DB-9) serial connector uses.
XTend vB DigiMesh RF Module User Guide
22
Development KitInterface protocols
For the RJ-45 connector pin designations to use in RS-485/422 environments see Male DB-9 to RJ-45
Adapter and Female DB-9 to RJ-45 Adapter.
The following table provides the RS-485 (2-wire half-duplex) signals and their implementations on the
Module Assembly.
RS-485
DB-9 Pin
nameDescriptionImplementation
2T/R- (TRA)Negative data
line
5GNDGround signalGround
8T/R+ (TRB)Positive data lineTransmit serial data to and from the Module
9PWRPowerOptional power input that is connected internally
1, 3, 4, 6,7not used
Transmit serial data to and from the Module
Assembly
Assembly
to the front power connector
RS-485 wiring diagrams
The following diagram shows the Module Assembly in an RS-485 (2-wire) half-duplex environment.
XTend vB DigiMesh RF Module User Guide
23
Development KitInterface protocols
RS-485 (4-wire) and RS-422 operation
The Module Assembly reads and applies the DIP switch settings only during power-on.
The following figure shows the RS-485 (4-wire) and RS-422 DIP switch settings.
The following figure shows the RS-485 (4-wire) and RS-422 DIP switch settings with termination
(optional).
Enabling termination activates a 120 Ω resistor between T+ and T-.
The following figure shows the pins that the female RS-232 (DB-9) serial connector uses.
For the RJ-45 connector pin designations to use in RS-485/422 environments see Male DB-9 to RJ-45
Adapter and Female DB-9 to RJ-45 Adapter.
The following table provides the RS-485/422 (4-wire) signals and their implementations on the Module
Assembly.
DB-9
pin
2T- (TA)Transmit
3R- (RA)Receive
5GNDSignal ground Ground
7R+ (RB)Receive
RS-485/422
nameDescriptionImplementation
Serial data sent from the Module Assembly
negative
data line
Serial data received by the Module Assembly
negative
data line
Serial data received by the Module Assembly
positive
data line
XTend vB DigiMesh RF Module User Guide
24
Development KitInterface protocols
DB-9
pin
8T+ (TB)Transmit
9PWRPowerOptional power input that is connected internally to the
1, 4, 6not used
RS-485/422
nameDescriptionImplementation
Serial data sent from the Module Assembly
positive
data line
front power connector
RS-422 wiring diagrams
The following figure shows the Module Assembly in an RS-485 (4-wire) environment.
The following figure shows the Module Assembly in an RS-422 environment.
RS-485/422 connection guidelines
The RS-485/422 protocol provides a solution for wired communications that can tolerate high noise
and push signals over long cable lengths. RS-485/422 signals can communicate as far as 4000 feet
XTend vB DigiMesh RF Module User Guide
25
Development KitInterface protocols
(1200 m). RS-232 signals are suitable for cable distances up to 100 feet (30.5 m).
RS-485 offers multi-drop capability in which you can connect up to 32 nodes. Use the RS-422 protocol
for point-to-point communications.
To integrate the XTend vB RF Module with the RS-485/422 protocol, we suggest the following:
1. When using Ethernet twisted pair cabling: connect T+ and T- to each wire in a twisted pair.
Likewise, connect R+ and R- to a twisted pair. For example, tie the green and white/green
wires to T+ and T-.
2. For straight-through Ethernet cable (not cross-over cable), the following wiring pattern works
well: Pin 3 to T+, Pin 4 to R+, Pin 5 to R-, Pin 6 to T-.
3. The connecting cable only requires 4 wires, even though there are 8 wires.
4. When using phone cabling (RJ-11), Pin 2 in the cable maps to Pin 3 on the opposite end of cable
and Pin 1 maps to Pin 4 respectively.
XTend vB DigiMesh RF Module User Guide
26
Technical specifications
The following tables provide the device's technical specifications.
WARNING! When operating at 1 W power output, observe a minimum separation distance
of 6 ft (2 m) between devices. Transmitting in close proximity of other devices can damage
the device's front end.
General specifications28
Performance specifications28
Networking specifications28
Power requirements29
Regulatory conformity summary29
XTend vB DigiMesh RF Module User Guide
27
Technical specificationsGeneral specifications
General specifications
The following table describes the general specifications for the devices.
SpecificationValue
Dimensions (RF/pin connectors not included)3.70 x 6.10 x 0.48 cm (1.457 x 2.402 x 0.190 in)
Weight16 g
RoHSCompliant
ManufacturingISO 9001:2000 registered standards
Connector20 pin 2 mm pitch header
Antenna connector optionsMMCX or RPSMA
Antenna impedance50 Ω unbalanced
Operating temperature-40 °C to 85 °C
Maximum input RF level at antenna port6 dBm
Digital outputs2 output lines
Performance specifications
The following table describes the performance specifications for the devices.
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.
SpecificationValue
Frequency range
RF data rate
Transmit power (software selectable)
Channels10 hopping sequences share 50 frequencies
Outdoor line of sight125 kb/sUp to 7 miles
Indoor range line of sight125 kb/sUp to 500 feet (150 m)
Receiver sensitivity125 kb/s-100 dBm
UART data rate (software selectable)1200 - 230400 baud
902 to 928 MHz US/Canada
125 kb/s
Up to 30 dBm (see Power requirements)
Networking specifications
The following table provides the networking specifications for the device.