Digi XBee-PRO XM-M92-2P Series User manual

D igi I n t er na t ion al
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XBee- PRO®9 0 0 H P RS- 2 3 2 / RS- 4 8 5 / USB RF Mode m
Overview
Interfacing Protocol
Product Ma nual
For XBee-PRO 900HP RF Modem Part Numbers:
XM-M92-2P...
XM-M92-4P...
XM-M92-UP...
9 0 0 M H z St a n d- a lon e RF M od e m s by D igi I n t er na t ion al I n c.
90002200_A
2013.12.23

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc.ii
© 2 0 1 3 Digi I nt er na t ional I nc. All r ig ht s r e se r ve d
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Contents
XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc. iii
1 . Over view of the 9 0 0 HP RF Modem 4
Feat ure s of t he 9 0 0 HP RF M odem 4
Worldwide Acceptance 5
Sp eci fica t ion s o f t h e 9 0 0 H P RF M od em 5
Ex t e r na l I nt e r fa ce of t h e 9 0 0 H P RF M od e m 6
RF Modem Sym bols 9
2 . I n t e rf a cin g Pr ot o col 1 0
RS- 2 3 2 Oper ation 1 0
RS-232 Pin Signals 10
RS-232 Wiring Diagram 11
RS- 4 8 5 ( 2 - w ir e) Oper at ion 1 2
RS-485 Pin Signals 13
RS-485 Wiring Diagram 13
RS- 4 8 5 ( 4 - w ire ) Ope rat ion and RS- 4 2 2 Ope ra tion
1 4
RS-485 Pin Signals 15
RS-485 Wiring Diagrams 15
RS-485/422 Connection Guidelines 16
USB Ope ra t ion 1 7
USB Pin Signals 17
Ap pe n dix A: Age ncy Ce r t ifica t ion s 1 8
FCC ( Un it e d St a t e s) Ce rt if ica t io n 1 8
Labeling Requirements 18
FCC Notices 18
Limited Modular Approval 18
FCC-approved Antennas 19
I C ( I n du st r y Ca n ada ) Ce r t if ica t io n 1 9
Ap pe n dix B: Ad dit i on a l I n f or m a t io n 2 3

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc.4
1.Overviewofthe900HPRFModem
The XBee-PRO 900HP RF Modem is a small, low-power solution that uses the XBee-
PRO 900HP 900 MHz RF Module in an enclosure to communicate with systems using
RS-232, RS-485, and USB interfaces. It allows you to easily make your existing wired
systems wireless simply by connecting to this product.
When a system is connected to the XBee-PRO 900HP RF Modem, it can transmit and
receive data from multiple radios on the same wireless network. This is achieved by
using Digi’s XBee-PRO 900HP RF Module.
This manual is not a comprehensive manual that provides a full description of the
900HP RF Modem. This manual only covers the interfaces needed to communicate
with the 900HP 900 MHz RF Module. For an extensive guide on use of the 900HP 900
MHz RF Module, see the XBee-PRO 900 HP/XBee-PRO XSC RF Modules Product Man-
ual.
1 .1 . Feat ur es of t he 9 0 0 H P RF Modem
Lo ng Ra n ge D a t a I n t e gr it y
Range
• Indoor/Urban: 2 0 0 k bps: Up t o 1 0 0 0 ' ( 3 0 5
m ) , 1 0 k bps: Up t o 2 0 0 0 ' ( 6 1 0 m )
• Outdoor line-of-sight: 2 0 0 kbps: Up t o 4
m iles ( 6 .5 k m ) , 1 0 k bps: Up t o 9 m ile s
( 1 5 .5 k m )
Transmit power: Up t o 2 4 dBm ( 2 5 0 m W )
(software selectable)
Receiver sensitivity: - 1 0 1 dBm ( 2 0 0 kbps) ,
- 1 1 0 dBm ( 1 0 kbps)
RF data rate: 2 0 0 k bps, 1 0 k bps
Ad va n ce d N e t w or k in g a n d Se cu r it y
True peer-to-peer (no “master” required) com-
munications.
Mesh, point-to-point and point-to-multipoint
topologies supported.
Retries and acknowledgements.
8 hopping channels, each with over 65,000 avail-
able network addresses.
FHSS (Frequency Hopping Spread Spectrum).
Low Pow e r
Receive current: 6 0 m A ( @9 V)
Transmit current: 1 4 0 m A ( @9 V)
Ea sy- t o- U se
No configuration required for out-of-the-box RF
data communications.
Free X-CTU software (Testing and configuration
software)
RS-232 and RS-485 variants configurable via the
mini USB port.
Advanced configurations available through stan-
dard AT and binary commands.
Built in RS-232/RS-485/USB interfacing.
Small form factor.
Software-selectable serial interface baud rates.
Support for multiple data formats (parity, start
and stop bits, etc.)
Free and unlimited Technical Support.

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc.5
1 .1 .1 . W or ldw ide Accept ance
FCC Appr ove d (U.S.A) Refer to Appendix A for FCC Requirements.
Systems that include XBee®/XBee-PRO®900HP RF modems inherit Digi
Certifications.
ISM (Industrial, Scientific and Medical) 900 GHz frequency band
Manufactured under I SO 9 0 0 1 :2 0 0 0 registered standards
XBee®/XBee-PRO® 900HP (900 MHz) RF Modems are approved for use in U.S, Canada, and
Australia.
1 .2 . Spe cifications of t he 9 0 0 H P RF Modem
*SeeAppendixAforregion‐specificcertificationrequirements.
Table 1‐01. SpecificationsoftheXBee‐PRO900HPRS‐232/RS‐485/USBRFModem
Specification XBee-PRO
Performance
Indoor/Urban Range 200kbps: Up to 1000 ft (305m)
10kbps: Up to 2000 ft (610m)
Outdoor line-of-sight Range 200kbps: Up to 4 miles (6.5km) w/ 2.1 dB dipole antenna
10kbps: Up to 9 miles (15.5km) w/ 2.1dB dipole antenna
Transmit power output Up to 24 dBm (250 mW) software selectable
RF Data Rate (High) 200kbps
RF Data Rate (Low) 10kbps
Interface data rate 9600-230400kbps (Software selectable, includes non-standard baud
rates)
Receiver sensitivity -101 dBm (200kbps), -110 dBm (10kbps)
Networking and Security
Frequency 902-928MHz (located in the 900MHz ISM Band)
Spread spectrum Frequency hopping
Supported network topologies Mesh, point-to-point, point-to-multipoint, peer-to-peer
Antenna
Connector RPSMA (reverse polarity SMA)
Impedance 50 ohms unbalanced
Power Requirements
Power supply 7-30 VDC
Receive current 60 mA (@9V)
Transmit current 140 mA (@9V)
Physical Properties
Size 4.500” x 2.750” x 1.125” (11.4cm x 7.0cm x 2.9cm)
Weight 5.25 oz. (150 g)
Data connection Female DB-9, RS-485/422 screw terminal, USB Type B, USB Mini-B
Operating temperature -40 - 85º C (Industrial)
Certifications (partial list)
United States (FCC Part 15.247) MCQ-XB900HP
Industry Canada (IC) 1846A-XB900HP
Australia C-Tick
RoHS Compliant

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
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1 .3 . Ex t er na l I n t er fa ce of the 9 0 0 HP RF Modem
Figure1‐01. FrontView(RS‐232) 1 - 0 1 a. RS- 2 3 2 Ser ial Port
Standard female DB-9
1 - 0 1 b. RS- 2 3 2 Pow e r Conn ect or
7-30 VDC power connector
1 - 0 1 c. RS- 2 3 2 Reset But ton
The reset button resets (re-boots) the XBee-PRO 900HP RF Modem.
This button only applies when using the configuration tabs of Digi’s X-
CTU Software.
Figure1‐02. BackView(RS‐232) 1 - 0 2 a. RS- 2 3 2 RSSI LEDs
RSSI LEDs indicate the amount of fade margin present in an active
wireless link. Fade margin is defined as the difference between the
incoming signal strength and the modem's receiver sensitivity.
3 LEDs ON = Very Strong Signal (> 30 dB fade margin)
2 LEDs ON = Strong Signal (>20 dB fade margin)
1 LED ON = Moderate Signal (>10 dB fade margin)
0 LED ON = Weak Signal (<10 dB fade margin)
1 - 0 2 b. RS- 2 3 2 I / O and Pow e r LED s
LEDs indicate RF modem activity as follows:
Yellow (top LED) = Serial Data Out (to host)
Green (middle) = Serial Data In (from host)
Red (bottom) = Power/TX Indicator (the red light is on when
powered, off briefly during RF transmission)
1 - 0 2 c. RS- 2 3 2 Com m ission ing Pu sh But ton
The commissioning push button provides a variety of simple functions
to aid in deploying devices in a network. See “Commissioning Push-
button” in chapter 7 of the XBee-PRO 900HP/XBee-PRO XSC RF Mod-
ules Product Manual for more detail.
1 - 0 2 d. RS- 2 3 2 USB M ini- B Port
When the USB Mini-B is plugged in, all RS-232 communications to
and from the XBee are disabled. The USB is to serve as a configura-
tion port. The XBee should not transmit when the USB is plugged in.
1 - 0 2 e. RS- 2 3 2 Ant en na Port
The antenna port is a 50ΩRF signal connector for connecting to an
external antenna. The connector type is RPSMA (Reverse Polarity
SMA) female. The connector has threads on the outside of a barrel
and a male center conductor.

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc.7
Figure1‐03. FrontView(RS‐485) 1 - 0 3 a. RS- 4 8 5 Ser ial Port
Phoenix 6-pin connector.
1 - 0 3 b. RS- 4 8 5 Pow er Conne ct or
7-30 VDC power connector.
1 - 0 3 c. RS- 4 8 5 D I P Sw itch
120 ohms termination for the receiving differential pairs if switch is in
the up position. Switch 1 is for half duplex (2 wire) termination.
Switch 2 is for full duplex (4 wire) termination.
1 - 0 3 d. RS- 4 8 5 Reset But ton
The reset button resets (re-boots) the XBee-PRO 900HP RF Modem.
This button only applies when using the configuration tabs of Digi’s X-
CTU Software.
Figure1‐04. BackView(RS‐485) 1 - 0 4 a. RS- 4 8 5 RSSI LEDs
RSSI LEDs indicate the amount of fade margin present in an active
wireless link. Fade margin is defined as the difference between the
incoming signal strength and the modem's receiver sensitivity.
3 LEDs ON = Very Strong Signal (> 30 dB fade margin)
2 LEDs ON = Strong Signal (>20 dB fade margin)
1 LED ON = Moderate Signal (>10 dB fade margin)
0 LED ON = Weak Signal (<10 dB fade margin)
1 - 0 4 b. RS- 4 8 5 I / O and Pow e r LED s
LEDs indicate RF modem activity as follows:
Yellow (top LED) = Serial Data Out (to host)
Green (middle) = Serial Data In (from host)
Red (bottom) = Power/TX Indicator (the red light is on when
powered, off briefly during RF transmission)
1 - 0 4 c. RS- 4 8 5 Com m ission ing Pu sh But ton
The commissioning push button provides a variety of simple functions
to aid in deploying devices in a network. See “Commissioning Push-
button” in chapter 7 of the XBee-PRO 900HP/XBee-PRO XSC RF Mod-
ules Product Manual for more detail.
1 - 0 4 d. RS- 4 8 5 USB M ini- B Port
When the USB Mini-B is plugged in, all RS-485 communications to
and from the XBee are disabled. The USB is to serve as a configura-
tion port. The XBee should not transmit if USB is plugged in.
1 - 0 4 e. RS- 4 8 5 Ant en na Port
The antenna port is a 50ΩRF signal connector for connecting to an
external antenna. The connector type is RPSMA (Reverse Polarity
SMA) female. The connector has threads on the outside of a barrel
and a male center conductor.

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc.8
Figure1‐05. FrontView(USB) 1 - 0 5 a . USB Por t
Type B USB port.
1 - 0 5 b. USB Pow e r Conne ct or
7-30 VDC power connector.
1 - 0 5 c. USB Reset But ton
The reset button resets (re-boots) the XBee-PRO 900HP RF Modem.
This button only applies when using the configuration tabs of Digi’s X-
CTU Software.
Figure1‐06. BackView(USB) 1 - 0 6 a. USB RSSI LEDs
RSSI LEDs indicate the amount of fade margin present in an active
wireless link. Fade margin is defined as the difference between the
incoming signal strength and the modem's receiver sensitivity.
3 LEDs ON = Very Strong Signal (> 30 dB fade margin)
2 LEDs ON = Strong Signal (>20 dB fade margin)
1 LED ON = Moderate Signal (>10 dB fade margin)
0 LED ON = Weak Signal (<10 dB fade margin)
1 - 0 6 b. USB I / O a nd Pow e r LED s
LEDs indicate RF modem activity as follows:
Yellow (top LED) = Serial Data Out (to host)
Green (middle) = Serial Data In (from host)
Red (bottom) = Power/TX Indicator (the red light is on when
powered, off briefly during RF transmission)
1 - 0 6 c. USB Com m issioning Push But ton
The commissioning push button provides a variety of simple functions
to aid in deploying devices in a network. See “Commissioning Push-
button” in chapter 7 of the XBee-PRO 900HP/XBee-PRO XSC RF Mod-
ules Product Manual for more detail.
1 - 0 6 d. USB An ten na Port
The antenna port is a 50ΩRF signal connector for connecting to an
external antenna. The connector type is RPSMA (Reverse Polarity
SMA) female. The connector has threads on the outside of a barrel
and a male center conductor.

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
©2013DigiInternationalInc.9
1 .4 . RF Modem Sym bols
The following symbols are found on top of the RF Modem. The description of the symbol is next to
the symbol.

XBee‐PRO®900HPRS‐232/RS‐485/USBRFModem‐ProductManual
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2.InterfacingProtocol
The XBee-PRO 900HP RS-232/485/USB RF Modem supports the following interfacing protocols:
• RS-232
• RS-485 (2-wire) half-duplex
• RS-485 (4-wire) and RS-422
•USB
2 .1 . RS- 2 3 2 Operat ion
2 .1 .1 . RS- 2 3 2 Pin Signals
Figure2‐01. PinsusedonthefemaleRS‐232(DB‐9)SerialConnector
Table 2‐01. RS‐232PinAssignmentsandImplementation
DB-9 Pin RS-232 Name Description Implementation
1 DCD Data-Carrier-Detect Connected to DSR (pin 6)
2 RXD Received Data Serial data exiting the RF modem (from
host)
3 TXD Transmitted Data Serial data entering into the RF modem
(from host)
4 DTR Data-Terminal-Ready 2 – 0xFFFF [x 100 msec]
5 GND Ground Signal 0x20 – 0x7F
6 DSR Data-Set-Ready 0 - 4
7RTS
/ CMD Request-to-Send/Command Mode
RTS (request-to-send) flow control: By
default, this pin is not used. To configure
this pin to regulate the flow of serial data
exiting the modem, refer to the Serial
Communications and
RT command section
CMD: Refer to Binary Commands and
RT Command Sections to enable binary
command programming
8 CTS Clear-to-Send
CTS (clear-to-send) flow control –When
pin is driven low, UART host is permitted
to send serial data to the modem. Refer
to the Serial Communications and CS
Command sections for more information
9 RI Ring Indicator
Optional power input (protection circuitry
to prevent back flow from other power
sources internal to the board)