DN-900G

DN-900G Datasheet

The DN-900 series 900 MHz serial modems provide ready-to-use solutions for robust wireless data communications in the 900 MHz ISM band. There are currently three products in the DN-900 series, the DN-900G, the DN-900I and the DN-900U. The DN-900G provides an RS-232C serial interface. The DN-900I offers a two-wire, multi-drop RS-485 interface plus a selectable RS-232C interface for configuration programming. The DN-900U provides a USB interface. DN-900 series modems are based on RFM’s DNT900 frequency hopping spread spectrum FHSS transceiver, and can communicate with other DNT900-based RFM products as well as customer developed products. DN-900 series modems consist of a radio module in a NEMA 4X/IP66 waterproof case connected to a serial interface adapter by a power and signal cable that allows the radio module to be located remotely at a point of good RF propagation. DN-900 series modems are well-suited for serial data networks carrying moderate traffic that need robust communications in locations with non-ideal RF propagation and/or where RF interference or noise are present.

Part	Datasheet
DN-900G	DN-900G (pdf)

Related Parts	Information
DN-900GX	DN-900GX

PDF Datasheet Preview
- 900 MHz RS-232C, RS-485/RS-232C and USB Serial Modems - Optional 128-Bit AES Encryption - Point-to-point, Point-to-multipoint, Peer-to-peer and Tree-routing Network Capabilities - Frequency Hopping Spread Spectrum Transceiver - Transceiver Housed in a NEMA 4X/IP66 Waterproof Case - RF Data Rate Configurable from to 500 kbps - Transmitter Power up to W EIRP using Internal Antenna - FCC and Canadian IC Certified for Unlicensed Operation The DN-900 series 900 MHz serial modems provide ready-to-use solutions for robust wireless data communications in the 900 MHz ISM band. There are currently three products in the DN-900 series, the DN-900G, the DN-900I and the DN-900U. The DN-900G provides an RS-232C serial interface. The DN-900I offers a two-wire, multi-drop RS-485 interface plus a selectable RS-232C interface for configuration programming. The DN-900U provides a USB interface. DN-900 series modems are based on RFM’s DNT900 frequency hopping spread spectrum FHSS transceiver, and can communicate with other DNT900-based RFM products as well as customer developed products. DN-900 series modems consist of a radio module in a NEMA 4X/IP66 waterproof case connected to a serial interface adapter by a power and signal cable that allows the radio module to be located remotely at a point of good RF propagation. DN-900 series modems are well-suited for serial data networks carrying moderate traffic that need robust communications in locations with non-ideal RF propagation and/or where RF interference or noise are present. DN-900 Series Absolute Maximum Ratings Rating Power Supply Input Voltage Range Non-Operating Ambient Temperature Range Value to +24 -40 to +85 Units V oC DN-900 Series 900 MHz Wireless Serial Modems DN-900 Series Specifications Characteristic Operating Frequency Range Hop Dwell Time Number of RF Channels in a Subband Modulation RF Data Transmission Rates Standard Antenna Receiver Sensitivity through 2 dBi Antenna: 10-5 BER kb/s 10-5 BER 200 kb/s 10-5 BER 500 kb/s EIRP Output Power Levels through 2 dBi Antenna to 200 kbps 500 kbps Sym Notes Minimum Typical Maximum 200 and 500 Internal 2 dBi directional antenna Units MHz ms kbps -110 -100 -96 100, 395, 790, 1580 E-mail 2012 by RF Monolithics, Inc. Page 1 of 5 DN-900 Series - 07/30/12 DN-900 Series Specifications Characteristic Optional External Antenna Connector External Antenna Impedance Direct Receiver Sensitivity through RTNC Connector: 10-5 BER kb/s 10-5 BER 200 kb/s 10-5 BER 500 kb/s Direct Output Power Levels through RTNC Connector to 200 kbps 500 kbps Network Topologies Access Scheme Number of Remote Nodes, TDMA Mode Number of Remote Nodes, CSMA Mode DN-900G RS-232C Configuration DN-900I RS-232C Configuration DN-900I RS-485 Configuration DN-900U USB Configuration Serial Port Baud Rates Signal Cable Length Options see Ordering Guide on Page 5 DC Power Supply Voltage Range, up to 50 ft signal cable DC Power Supply Voltage Range, 50 ft to 300 ft cable DC Power Supply Ripple, A load Peak Transmit Mode DC Power Average Receive Mode Power: Base, Continuous Data Stream Remote, Linked, No Data Remote, Continuous Data Stream, kbps Remote, Continuous Data Stream, kbps Interface Adapter Nominal Dimensions Radio Module Case Rating Radio Module Nominal Dimensions Radio Module Mounting Operating Temperature Range Operating Relative Humidity Range, Non-condensing Notes Minimum Typical Maximum 50 ohms, VSWR < 3:1 Units -108 -98 -94 1, 10, 63, 250, 500, 1000 1, 10, 85 Point-to-Point, Point-to-Multipoint, Peer-to-Peer, Tree-Routing TDMA/CSMA Limited only by traffic density 9-pin connector, hardware flow control optional 3-wire, no hardware flow control 2-wire, multi-drop capable USB Type B connector kbps 4, 50, 100, 300 mVP-P x inches 80 x 43 x 22 mm NEMA 4X/IP66 outdoor enclosure x inches 131 x 127 x 36 mm Flange with pre-drilled mounting holes mount flange to mast with bolts or hose clamps E-mail 2012 by RF Monolithics, Inc. Page 2 of 5 DN-900 Series - 07/30/12 Figure 1 DN-900 Series Modem Operation The DN-900 series 900 MHz modems provide high performance, ready-to-use solutions for robust wireless data communications in the 900 MHz ISM band. There are currently three products in the DN-900 series, the DN-900G, the DN-900I, and the DN-900U. The DN-900G provides an RS-232C serial interface with optional flow control. The DN-900I offers a two-wire, multi-drop RS-485 interface plus a selectable three-wire RS-232C interface for configuration programming. The DN-900U provides a USB interface. DN-900 series modems are based on RFM’s DNT900 frequency hopping spread spectrum FHSS transceiver, and can communicate with other DNT900-based RFM products, as well as customer developed products. As shown in Figure 1, DN-900 series modems consist of a radio module in a NEMA 4X/IP66 waterproof case with an internal 2 dBi directional antenna, a signal cable that carries power and data, and an interface adaptor that includes a power supply connector and the appropriate serial data connector. The radio module can optionally be provided with a RTNC antenna connector in lieu of the internal antenna see Ordering Guide on Page DN-900 serial modems with the RTNC connector are compatible with RFM’s complete line of 900 MHz antennas, allowing extended operating range where allowed by local regulations. DN-900 series modems are supplied with a 110/220 VAC wall-plug power supply that includes an international plug set. Optionally, DN-900 series modems can be powered from a user-supplied DC source as described in the specifications table. The signal cable can specified as 4, 50, 100 or 300 feet in length see Ordering Guide on Page 5 , which allows the radio module to be located remotely indoors or outdoors at a point of good RF propagation. DN-900 modems can transmit data from to 500 kbps, and the transmitter output power can be set from mW to W EIRP when using the internal antenna. DN-900 series modems are well-suited for serial data networks carrying moderate traffic that need robust communications in locations with non-ideal RF propagation and/or where RF interference or noise are present. DN-900 serial modems can operate in point-to-point, point-to-multipoint, peer-to-peer and tree routing DNT900-based wireless networks. DN-900 data modems are shipped configured to transmit transparent data, which requires no protocol formatting. All that is required to set up a transparent point-to-point serial data link to configure one modem as a base unit using a simple PC-based utility. DN-900 series modems can also operate in protocol mode, which is supported by a rich set of configuration parameters that allow a wide range of network layouts and configurations to be optimized. E-mail 2012 by RF Monolithics, Inc. Page 3 of 5 DN-900 Series - 07/30/12 DN-900G/DN-900U Power Connector and LED Description Name +PWR I The center coaxial conductor tip is the positive DC power input. - The outer coaxial conductor ring is the DC power ground. O Green LED indicates the unit is powered. LINK O Amber LED indicates the unit is linked. DN-900G Serial Port DB9 Connector Description Name O This pin is an output indicating the modem is linked to the radio network. 2 RADIO_TXD O This pin is the DN-900G serial data output. 3 RADIO_RXD I This pin is the DN-900G serial data input. I This pin is the data terminal ready input from the DN-900G host. - This pin is signal ground. - No connection. 7 HOST_RTS I This pin is the request to send input from the DN-900G host. 8 HOST_CTS O This pin is the clear to send output from the DN-900G. - No connection. DN-900I Serial Port Terminal Block Description Name +PWR I This terminal is the positive power supply input, +6 to +24 V. - This terminal is a power supply and signal ground. 485 EN When this terminal is unconnected, serial operation is RS-232C. When this terminal is grounded to terminal 2 or 4, serial operation is RS-485. - This terminal is a power supply and signal ground. TX/A O This terminal transmits data to the host RS-232C TxD or RS-485 A signal . RX/B I This terminal receives data from the host RS-232C RxD or RS-485 B signal . E-mail 2012 by RF Monolithics, Inc. Page 4 of 5 DN-900 Series - 07/30/12 D N -9 0 S e r ie s T r a n s c e iv e r C a s e 1 0 3 6 5 0 1 2 7 DN-900 Serial Modem Part Number Ordering Guide Serial Interface Antenna/Connector 4 RS-232C, DB9 Connector Internal 2 dBi Antenna DN-900G-4 RS-232C, DB9 Connector RTNC Connector DN-900GX-4 RS-485/RS-232C, 6-Pin Terminal Block Internal 2 dBi Antenna DN-900I-4 RS-485/RS-232C, 6-Pin Terminal Block RTNC Connector DN900IX-4 USB Type B Connector Internal 2 dBi Antenna DN900U-4 USB Type B Connector RTNC Connector DN900UX-4 Cable Length, feet DN-900G DN-900G-100 DN-900GX DN-900GX-100 DN-900I DN-900I-100 DN-900IX DN-900IX-100 DN-900U DN-900U-100 DN-900UX DN-900UX-100 300 DN-900G-300 DN-900GX-300 DN-900I-300 DN-900IX-300 DN-900U-300 DN-900UX-300 Note Specifications subject to change without notice. E-mail 2012 by RF Monolithics, Inc. Page 5 of 5 DN-900 Series - 07/30/12

PDF Datasheet Preview

- 900 MHz RS-232C, RS-485/RS-232C and USB Serial Modems - Optional 128-Bit AES Encryption - Point-to-point, Point-to-multipoint, Peer-to-peer and

Tree-routing Network Capabilities - Frequency Hopping Spread Spectrum Transceiver - Transceiver Housed in a NEMA 4X/IP66 Waterproof Case - RF Data Rate Configurable from to 500 kbps - Transmitter Power up to W EIRP using Internal Antenna - FCC and Canadian IC Certified for Unlicensed Operation

The DN-900 series 900 MHz serial modems provide ready-to-use solutions for robust wireless data communications in the 900 MHz ISM band. There are currently three products in the DN-900 series, the DN-900G, the DN-900I and the DN-900U. The DN-900G provides an RS-232C serial interface. The DN-900I offers a two-wire, multi-drop RS-485 interface plus a selectable RS-232C interface for configuration programming. The DN-900U provides a USB interface. DN-900 series modems are based on RFM’s DNT900 frequency hopping spread spectrum FHSS transceiver, and can communicate with other DNT900-based RFM products as well as customer developed products. DN-900 series modems consist of a radio module in a NEMA 4X/IP66 waterproof case connected to a serial interface adapter by a power and signal cable that allows the radio module to be located remotely at a point of good RF propagation. DN-900 series modems are well-suited for serial data networks carrying moderate traffic that need robust communications in locations with non-ideal RF propagation and/or where RF interference or noise are present.

DN-900 Series Absolute Maximum Ratings

Rating Power Supply Input Voltage Range Non-Operating Ambient Temperature Range

Value to +24 -40 to +85

Units V oC

DN-900 Series
900 MHz Wireless

Serial Modems

DN-900 Series Specifications

Characteristic Operating Frequency Range Hop Dwell Time Number of RF Channels in a Subband Modulation RF Data Transmission Rates Standard Antenna Receiver Sensitivity through 2 dBi Antenna:
10-5 BER kb/s 10-5 BER 200 kb/s 10-5 BER 500 kb/s EIRP Output Power Levels through 2 dBi Antenna to 200 kbps 500 kbps

Sym Notes

Minimum

Typical

Maximum
200 and 500

Internal 2 dBi directional antenna

Units MHz ms
kbps
-110 -100 -96
100, 395, 790, 1580

E-mail 2012 by RF Monolithics, Inc.

Page 1 of 5 DN-900 Series - 07/30/12

DN-900 Series Specifications

Characteristic Optional External Antenna Connector External Antenna Impedance Direct Receiver Sensitivity through RTNC Connector:
10-5 BER kb/s 10-5 BER 200 kb/s 10-5 BER 500 kb/s Direct Output Power Levels through RTNC Connector to 200 kbps 500 kbps

Network Topologies

Access Scheme Number of Remote Nodes, TDMA Mode Number of Remote Nodes, CSMA Mode DN-900G RS-232C Configuration DN-900I RS-232C Configuration DN-900I RS-485 Configuration DN-900U USB Configuration

Serial Port Baud Rates
Signal Cable Length Options see Ordering Guide on Page 5 DC Power Supply Voltage Range, up to 50 ft signal cable DC Power Supply Voltage Range, 50 ft to 300 ft cable DC Power Supply Ripple, A load Peak Transmit Mode DC Power Average Receive Mode Power:

Base, Continuous Data Stream Remote, Linked, No Data Remote, Continuous Data Stream, kbps Remote, Continuous Data Stream, kbps

Interface Adapter Nominal Dimensions

Radio Module Case Rating

Radio Module Nominal Dimensions

Radio Module Mounting

Operating Temperature Range Operating Relative Humidity Range, Non-condensing

Notes

Minimum

Typical

Maximum
50 ohms, VSWR < 3:1

Units
-108 -98 -94
1, 10, 63, 250, 500, 1000
1, 10, 85

Point-to-Point, Point-to-Multipoint, Peer-to-Peer, Tree-Routing

TDMA/CSMA

Limited only by traffic density
9-pin connector, hardware flow control optional
3-wire, no hardware flow control
2-wire, multi-drop capable

USB Type B connector
kbps
4, 50, 100, 300
mVP-P
x inches 80 x 43 x 22 mm

NEMA 4X/IP66 outdoor enclosure
x inches 131 x 127 x 36 mm

Flange with pre-drilled mounting holes mount flange to mast with bolts or hose clamps

E-mail 2012 by RF Monolithics, Inc.

Page 2 of 5 DN-900 Series - 07/30/12

Figure 1

DN-900 Series Modem Operation

The DN-900 series 900 MHz modems provide high performance, ready-to-use solutions for robust wireless data communications in the 900 MHz ISM band. There are currently three products in the DN-900 series, the DN-900G, the DN-900I, and the DN-900U. The DN-900G provides an RS-232C serial interface with optional flow control. The DN-900I offers a two-wire, multi-drop RS-485 interface plus a selectable three-wire RS-232C interface for configuration programming. The DN-900U provides a USB interface. DN-900 series modems are based on RFM’s DNT900 frequency hopping spread spectrum FHSS transceiver, and can communicate with other DNT900-based RFM products, as well as customer developed products.
As shown in Figure 1, DN-900 series modems consist of a radio module in a NEMA 4X/IP66 waterproof case with an internal 2 dBi directional antenna, a signal cable that carries power and data, and an interface adaptor that includes a power supply connector and the appropriate serial data connector. The radio module can optionally be provided with a RTNC antenna connector in lieu of the internal antenna see Ordering Guide on Page DN-900 serial modems with the RTNC connector are compatible with RFM’s complete line of 900 MHz antennas, allowing extended operating range where allowed by local regulations.
DN-900 series modems are supplied with a 110/220 VAC wall-plug power supply that includes an international plug set. Optionally, DN-900 series modems can be powered from a user-supplied DC source as described in the specifications table. The signal cable can specified as 4, 50, 100 or 300 feet in length see Ordering Guide on Page 5 , which allows the radio module to be located remotely indoors or outdoors at a point of good RF propagation. DN-900 modems can transmit data from to 500 kbps, and the transmitter output power can be set from mW to W EIRP when using the internal antenna.

DN-900 series modems are well-suited for serial data networks carrying moderate traffic that need robust communications in locations with non-ideal RF propagation and/or where RF interference or noise are present. DN-900 serial modems can operate in point-to-point, point-to-multipoint, peer-to-peer and tree routing DNT900-based wireless networks.

DN-900 data modems are shipped configured to transmit transparent data, which requires no protocol formatting. All that is required to set up a transparent point-to-point serial data link to configure one modem as a base unit using a simple PC-based utility. DN-900 series modems can also operate in protocol mode, which is supported by a rich set of configuration parameters that allow a wide range of network layouts and configurations to be optimized.

E-mail 2012 by RF Monolithics, Inc.

Page 3 of 5 DN-900 Series - 07/30/12

DN-900G/DN-900U Power Connector and LED Description

Name
+PWR

I The center coaxial conductor tip is the positive DC power input.
- The outer coaxial conductor ring is the DC power ground.

O Green LED indicates the unit is powered.

LINK

O Amber LED indicates the unit is linked.

DN-900G Serial Port DB9 Connector Description

Name

O This pin is an output indicating the modem is linked to the radio network.
2 RADIO_TXD O This pin is the DN-900G serial data output.
3 RADIO_RXD I This pin is the DN-900G serial data input.

I This pin is the data terminal ready input from the DN-900G host.
- This pin is signal ground.
- No connection.
7 HOST_RTS I This pin is the request to send input from the DN-900G host.
8 HOST_CTS O This pin is the clear to send output from the DN-900G.
- No connection.

DN-900I Serial Port Terminal Block Description

Name
+PWR

I This terminal is the positive power supply input, +6 to +24 V.
- This terminal is a power supply and signal ground.
485 EN

When this terminal is unconnected, serial operation is RS-232C. When this terminal is grounded to terminal 2 or 4, serial operation is RS-485.
- This terminal is a power supply and signal ground.

TX/A

O This terminal transmits data to the host RS-232C TxD or RS-485 A signal .

RX/B

I This terminal receives data from the host RS-232C RxD or RS-485 B signal .

E-mail 2012 by RF Monolithics, Inc.

Page 4 of 5 DN-900 Series - 07/30/12

D N -9 0 S e r ie s T r a n s c e iv e r C a s e
1 0 3 6
5 0 1 2 7
DN-900 Serial Modem Part Number Ordering Guide

Serial Interface

Antenna/Connector 4

RS-232C, DB9 Connector

Internal 2 dBi Antenna DN-900G-4

RS-232C, DB9 Connector

RTNC Connector DN-900GX-4

RS-485/RS-232C, 6-Pin Terminal Block Internal 2 dBi Antenna DN-900I-4

RS-485/RS-232C, 6-Pin Terminal Block

RTNC Connector

DN900IX-4

USB Type B Connector

Internal 2 dBi Antenna DN900U-4

USB Type B Connector

RTNC Connector

DN900UX-4

Cable Length, feet

DN-900G

DN-900G-100

DN-900GX DN-900GX-100

DN-900I

DN-900I-100

DN-900IX

DN-900IX-100

DN-900U

DN-900U-100

DN-900UX DN-900UX-100
300 DN-900G-300 DN-900GX-300 DN-900I-300 DN-900IX-300 DN-900U-300 DN-900UX-300

Note Specifications subject to change without notice.

E-mail 2012 by RF Monolithics, Inc.

Page 5 of 5 DN-900 Series - 07/30/12

More datasheets: DFR0089 | AMB1950 | 100325QCX | 100325SC | 100325QIX | 100325QI | 100325SCX | 100325QC | QFBR-S01EK001Z | DN-900GX

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Datasheet ID: DN-900G 523104