Black Box MDR210A-485 User Manual

MDR210A-485

900 MHz. Frequency Hopping RS-485 Master/Slave auto-sensing

radio interface.

Black Box Corporation – Lawrence, PA - http://www.blackbox.com - Ph 877-877-BBOX - Fax [phone]

Table of Contents

Description………………………………………………………………3

Features………………………………………………………………….4

Serial Port Scanning…………………………………………………5
Application Fields…………………………………………………….5

Networks…………………………………………………………………5
Module Address………………………………………………………..6

Data Validity…………………………………………………………6, 7

Glossary……………………………………………………………….7, 8

Application Notes………………………………………………..9, 10

Appendix A—Specifications..…………………………………….11
FCC Compliance…………….….…………………………………….12

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Description

The MDR210A-485 uses an embedded 100-milliwatt, frequency-hopping
wireless modem that provides communication between a local RS485 network
and a remote network of RS485 connected devices. The MDR210A-485 will
automatically sense the direction of data flow and switch the RS485 and Radio
devices accordingly. The MDR210A-485 can be placed in a network of RS485
devices and appear as a slave repeater of remote RS485 devices or it can be
placed in a network of one or many RS485 slaves and act as the RS485 repeater
of a remote master. The radio operates within the 900 MHz ISM Band under
Part 15 of the FCC Rules and Regulations.

The MDR210A-485 operates at 19200 Baud at either odd parity or no parity.
Dipswitches select parity and one of 7 radio networks. Radios operating together
must have the same radio network address (1-7 set by switches labeled A0-A2).
Select a different radio network address to prevent interference from nearby
networks that are not sharing information. The default radio network for Rooftop
applications is 5. The user may choose another network address (1-7) if desired.
While all radios in a network must have the same network address, they do not
have to have the same parity. The parity is local to the RS485 serial port on the
MDR210A-485 only. Parity information is not transmitted or received.

Radio network selection 0 (A0, A1, A2 all set to 0) selects a special network
setup. When network address setting 0 is selected, the pre-programmed radio
network parameters are used. These parameters are user and application
specific and must be set at the factory for specific OEM applications.

The MDR210A-485 can also be used as a general purpose RS485 half duplex
radio interface operating at 19200 Baud at either odd or no parity (dip switch
selectable).

PARAMETER MIN TYP MAX UNITS

Supply Voltage 6.0 12 24 Volts
Supply Current 70 - 200 mA
Baud Rate - 19200 - Baud

PIN SIGNAL

1 TR- RS485 transmit/receive negative I/O
2 TR+ RS485 transmit/receive positive I/O
3 GND Common

DESCRIPTION

3

Features

•

range

Multiple radios allow many remote RS485 networks to coexist

24 VDC at 200 milliamp transmitting, 70 milliamp

Astron AXH900RP SMA R Reverse Polarity SMA 6.5”

res

RS485 Master/Slave auto-sensing radio interface.

• Built in 900MHz frequency hopping radio for long-

General Purpose

wireless interface.

• Provides remote capability to RS485 Modbus networks.

• Automatically senses Master or Slave data flow.

•

• Provides means to connect legacy RS485 devices to wireless.

• Range Indoor: 600’ to 1300’

• Range Outdoor: 7mi. with dipole, >20 mi. w/high gain antenna.

• LED power and activity indicator.

• Configuration parameters set by dipswitch.

• Low power, 6-

•

General

Frequency Range 902 to 928 MHz., unlicensed ISM Band
Type Frequency Hopping Spread Spectrum Transceiver
Frequency Control Direct FM
Transport Protocol Transparent networking
Channel Capacity Hops through 25 channels. Up to 65,000 network identifiers.
Serial Data Interface Asynchronous RS232 levels. CMOS (TTL) Signals, 5V, 3.3V Tolerant
Serial Interface Baud

Rate
Data Throughput 9600 bps

Network Topology Point – multipoint, point-to-point multi-drop transparent networking

Channel Data Rate 10k or 20k bps respectively (vary with data rate)
Transmit Power Output 100mW
Rx Sensitivity -110dBm or –107dBm Respectively
Range* Indoor: 600’ to 1500’ Outdoor: 7 mi. with dipole, over 20 mi. with high gain antenna
Interface Rejection 70 dB at pager and cellular phone frequencies

900 MHz. Spread Spectrum Frequency Hopping Transceiv

logically.

receiving.

Antenna.

MDR210A-485

Configurable from 2400-57600 bps

Performance

*Range calculations are for 9600 baud line of sight. Actual range will vary based upon specific antenna selection and

environment

4

9XSTREAM-192/96 Radio

Introduction

The 9XSTREAM-192/96 radio is a 100-milliwatt frequency hopping wireless modem that
communicates with other equipment using a standard 19200 or 9600-baud asynchronous serial
data stream. The radio is half-duplex and can sustain a continuous data stream at the specified
data rate. The 9XSTREAM operates within the 900 MHz ISM Band under Part 15 of the FCC
Rules and Regulations.

IMPORTANT: The 9XSTREAM radio has been certified as a module by the FCC for integration
into OEM products without further certification being necessary (as per FCC section 2.1091.) The
OEM must satisfy the following requirements in order to comply with FCC regulations:

The system integrator must ensure that the external label provided with this device is placed on
the outside of the final product.

In order to comply with the FCC RF exposure requirements, the 9XSTREAM may be used only
with approved antennas that have been tested with this radio and a minimum separation distance
of 20 cm must be maintained from the antenna to any near by persons. The OEM must also
include a statement in the final product manual, informing users of the requirement to maintain 20
cm separation from the antenna to any near by persons. If the OEM integrates the 9XStream into
their final product, where the final product utilizes a non-approved antenna or is classified as a
portable device per FCC Section 2.1093 (less than 20 cm separation distance between the
antenna to any near by persons,) the OEM is responsible for obtaining a separate authorization
on the final product.

The 9XSTREAM radio requires a regulated 5-volt, 200mA supply for operation. Any voltage
higher than 5.5 volts will damage the radio.

Approved Antennas

Mfr Model Freq Gain Type Connector
Dimensions

Astron AXQ900 PTL 902-928 2dBi Omni MMCX 3”
Astron AXH900RP SMA R 902-928 2dBi Omni Reverse Polarity SMA 6.5”
MaxStream 900CDAN 902-928 2dBi Omni Integrated 3”

External Label:

This device contains transmitter module
FCC ID:OUR9XTREAM. The enclosed
device complies with Part 15 of the FCC Rules.
Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) this device
must accept any interference received,
including interference that may cause
undesired operation.

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