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In this simple cable replacement application with repeater, the radio system still knows all data originating at one end must be transmitted to the

other end. In this application, there are no serial devices connected to the repeater(s). The system still corrects for transmission problems, but it

takes time to repeat the message. The network delay is double that of a system with no repeater.

• Master configuration route to slave: DIP switches 2 OFF, 3 OFF, 4, ON

• Repeater configuration: DIP switches 2 ON, 3 ON, 4 OFF

• Slave configuration route to master: DIP switches 2 OFF, 3 OFF, 4 OFF

Broadcast Mode Configuration

Figure 4. Star network

Master

Slave

Slave

Slave

Slave

Slave

Slave

In this more complex star topology, the master radio at the center of the network can communicate to many slave radios. A common example would

be a PLC at the center communicating with many remote I/O systems. The star topology is slower than a point-to-point network, but faster than a

tree network.

• Master configuration to broadcast to all devices: DIP switches 2 ON, 3 OFF, 4 ON

• Slave configuration to route to master: DIP switches 2 OFF, 3 OFF, 4 OFF

Figure 5. Tree network

Master

Slave

Slave

Repeater

Slave

A tree network using MultiHop radios is the most powerful wireless system possible; many repeaters and slaves can be combined to cover vast

areas and get around hills or buildings. In the other networks, the wireless "hops" are minimized. In this system you can "hop" as much as you need

to, but the trade-off is speed. This is the slowest of the network layouts.

• Master configuration to broadcast to all devices: DIP switches 2 ON, 3 OFF, 4 ON

• Repeater configuration to broadcast to all devices: DIP switches 2 ON, 3 ON, 4 OFF

• Slave configuration to broadcast to all devices: DIP switches 2 ON, 3 OFF, 4 OFF

Important: Star and tree topologies use a Broadcast radio technique. Broadcasting allows for many radios and large complex

systems but also introduces a small chance that a data packet can be lost. These networks topologies require the control

system to automatically resend missing data packets. Most control protocols (like Modbus) will work fine. Other serial stream

based protocols may not be as tolerant and should only be used with point to point topologies.

Apply Power

The R70SR Serial Data Radio is fitted with a 5-pin M12 connector for fast installations. Use straight splitter cordsets to connect multiple devices and

power to the R70SR Serial Radio. For a list of splitter and cordset options, see 

Accessories 

on page 6.

Sure Cross

®

 R70SR Serial Data Radio

 

 

P/N 224673 Rev. B

www.bannerengineering.com - Tel: + 1 888 373 6767

3

Summary of Contents for Sure Cross R70SR Series

Page 1: ...work Connect your serial devices using a serial cable Note the baud rate and parity of your serial devices so that you can use the DIP switches to configure the serial data radios to use these parame...

Page 2: ...radio that comes into the network The Master Radio should only be in Routed mode if used in a Point to Point Network Broadcast Mode Broadcast mode allows for more flexible radio layouts and is used i...

Page 3: ...MultiHop radios is the most powerful wireless system possible many repeaters and slaves can be combined to cover vast areas and get around hills or buildings In the other networks the wireless hops ar...

Page 4: ...ne master radio and one slave radio synchronizes quickly after power up larger MultiHop networks may take a few minutes to synchronize First all radios within range of the master data radio wirelessly...

Page 5: ...kbps 2 4 GHz 250 kbps Supply Voltage 10 V DC to 30 V DC Outside the USA 12 V DC to 24 V DC 10 1 Average Current for 900 MHz Radios 1500 byte packets at 50 ms intervals Master Mode 0 12 A at 12 V 0 06...

Page 6: ...traight 40 Typ 14 5 M12 x 1 44 Typ 14 5 M12 x 1 1 4 5 3 2 2 3 4 1 5 MQDEC 503SS 0 91 m 2 99 ft 1 Brown 2 White 3 Blue 4 Black 5 Gray MQDEC 506SS 1 83 m 6 ft MQDEC 512SS 3 66 m 12 ft MQDEC 515SS 5 m 16...

Page 7: ...g agencies This device has been designed to operate with the antennas listed on Banner Engineering s website and having a maximum gain of 9 dBm Antennas not included in this list or having a gain grea...

Page 8: ...he product for personal protection applications when the product is identified as not intended for such purposes will void the product warranty Any modifications to this product without prior express...

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