Wilkerson Instrument DR9021 Data sheet

DESCRIPTION

The DR9021 RF Receiver receives RF
signals from the DR9011 Transmitter and
reconstructs the analog signals as 4/20 mA
outputs.

When the transmitter has a dual channel
input, the DR9021 has a 4/20 mA output for
each channel. If the transmitter has a single
channel analog input, the DR9021 provides
two 4/20 mA outputs proportional to the single
input.

Switch outputs are provided as discrete
Open Collector NPN transistors. A DIP
Switch on the PC board allows selection of

DR9021

WIRELESS POINT-TO-POINT RECEIVER

FEATURES

• Dual 4/20 mADC Outputs

• Four Digital Open Collector
NPN Transistor Outputs

• Reverse Polarity Screw-On
SMA Antenna Connector

• 915MHz ISM* Band - 2
Versions, 14 Hop Sequences

• 2.4GHz Unlicensed Band - 1
Version, 7 Hop Sequences

Normal Acting or Reverse Acting (Failsafe)
outputs.

Three radio modules are available for the
DR9021, two 915MHz band versions with 7
Hop sequences each and a 2.4GHz band
version with 7 Hop sequences. They use
spread spectrum, frequency hopping*
technology. These choices provide 21
different Hop sequences that allow 21
systems to work in the same locale without
interfering with each other.

A DIP Switch on the PC board is used to set
the hopping sequence.

• Spread Spectrum, Frequency

Hopping Technology*

• Ranges to 20 Miles With
915MHz Band Radio

• Ranges to 10 Miles With

2.4GHz Band Radio

• DIN Rail Mount - Steel Clip

• 5 Year Warranty
(1 Year on Radio Module)

• UL/cUL Recognized

With proper antenna and cable selection and
a 915MHz band version radio, the DR9021
can receive from a DR9011 up to 20 miles
away.

The DR9021 provides isolation between the
output and the power source.

Screw terminal blocks that plug into the case
allow easy wiring and removal of products.

All of the DR Series of products provide
transient protection to help eliminate damage
from lightning and from other transients
created on the power and signal leads.

POINT TO

POINT

DC OUTPUT

SPECIFICATIONS

RADIO

Frequency

915 MHz Band

908 or 922 MHz

2.4 GHz Band

2.4000 - 2.4835 GHz

Spread Spectrum Type

Frequency Hopping, Direct FM

I/O Data Rate Tx to Rx:

9600 bps

Update Rate

10/S

Range / Line of Sight

915 MHz Band - Up to 20 Mi.

2.4 GHz Band - Up to 10 Mi.

Receiver Sensitivity:

915 MHz Band

-110 dBm @ 9600 baud

2.4 GHz Band

-105 dBm @ 9600 baud

Transmitter Power:

915 MHz Band

100 mW (20 dBm)

2.4GHz Band
50 mW (17dBm)

Connector:

Reverse Polarity SMA Female

Certification:

FCC Part 15.247

OUTPUT

Analog

Dual 4/20 mADC

12 VDC Compliance

Digital

Four Optically Isolated
Open Collector NPN Transistors

30 VDC Max Voltage,
30 mA Max Current

Operates in Saturated Mode

POWER

85/230 VAC

2.0 VA Max

12 or 24 VDC

1.5 Watt Max

* See page 52 for a comprehensive

definition.

9

DR9021

ORDERING

POINT

POINT TO

INFORMATION

Wilkerson Instrument Co., Inc. Copy and Fax to Place Order.

RADIO

908 MHz - Standard
922 MHz - Optional

2.4 GHz

NOTE: Radio used must match DR901 1 Radio

POWER

85/230 V AC
24 VDC
12 VDC

* NOTE: This unit must be used with a DR9011 wireless transmitter .

DC OUTPUT

ACCESSORIES

RP = Reverse Polarity
4073 Two Antenna Coupler, Transmit and Receive, 2-Port 900 MHz QTY _____
4051 Receive Only, 2 to 4 Antenna Coupler 4-Port 900 MHz QTY _____
4061 Receive Only, 2 to 4 Antenna Coupler 4-Port 2.4 GHz QTY _____
4062 50 Ohm Termination, For Unused Ports On P/N 4051,4061 QTY _____
4022 PSP24-024S, 24 VDC 1 Amp Power Supply QTY _____
4026 Bulkhead Connector Type N Female to Type N Female QTY _____
4011 Bulkhead Surge Protector Type N Male to Type N Female QTY _____
4035 Bulkhead Surge Protector Type N Female to Type N Female QTY _____
CBH2 2 Ft WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CBH6 6 Ft WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CBH10 10 Ft WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CBH-X Custom Length WBC195 Cable w/ RP-SMA Male & RP-SMA Female Bulkhead Connector QTY _____
CPT2 2 Ft WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
CPT6 6 Ft WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
CPT10 10 Ft WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
CPT-X Custom Length WBC195 Cable w/ RP-SMA Male & Type N Male Connector QTY _____
For more accessories and cables, see the ACCESSORIES section of this catalog (Page 49).

DIMENSIONS

Inches [mm]

CONNECTIONS

TERMINAL

CONNECTION

10

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

4/20 mADC Output 1 +
4/20 mADC Output 1 ­4/20 mADC Output 2 +
4/20 mADC Output 2 ­Switch 1 +
Switch 1 ­Switch 2 +
Switch 2 ­Switch 3 +
Switch 3 ­Switch 4 +
Switch 4 ­No Connection
No Connection
Power +
Power -