FreeWave FGRO9CSU - Table 21: RS 485 Half Duplex

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FreeWave Technologies Spread Spectrum Transceiver User Manual

900 MHz and 2.4 GHz

V5.0S

RS-422 & RS-485 Full Duplex pin-outs

Function Bare Board Pin Number DE-9 Pin Number

RX+ 7 3

RX- 9 7

TX+ 5 2

TX- 10 8

RS-485 Half Duplex pin-outs

Function Bare Board Pin Number DE-9 Pin Number

Wire to both pins for Buss + Short 5 & 7 Short 2 & 3

Wire to both pins for Buss - Short 9 & 10 Short 7 & 8

Table 20: RS-422 & RS 485

full duplex

Table 21: RS 485 half duplex

Main Page

Default Chapter11
- Table of Contents11
Quick Start15
Quick Start on a Multipoint System16
Tuning Transceiver Performance17
- Table 1: Setup Menu Terminal Settings17
- Figure 1: Initial Menu18
- Figure 2: Freewave Operation Mode Menu19
Operation Mode Selections20
- Point-To-Point Master20
- Point-To-Point Slave20
- Point-To-Multipoint Master20
- Point-To-Multipoint Slave20
- Point-To-Point Slave/Repeater20
- Point-To-Point Repeater21
- Point-To-Point Slave/Master Switchable21
- Table 2: at Script File Commands22
- Figure 3: Using Mode 6 to Call through Repeaters23
- Point-To-Multipoint Repeater24
- (F) Ethernet Options24
Multipoint Operation25
- Theory of Operation25
- Installing Multipoint Systems25
- Overlapping Multipoint Systems26
- Number Repeaters26
- Master Packet Repeat26
- Master Packet Repeat in Multipoint Systems with Repeaters28
- Figure 4: Multipoint Parameters28
- Max Slave Retry29
- Retry Odds29
- Dtr Connect29
- Repeater Frequency29
- Network ID30
- Multimaster Synch30
- PPS Enable/Delay30
- (A) Slave/Repeater31
- (B) Diagnostics31
- (C) Subnet ID31
- Figure 5: Multipoint Subnet Diagram33
- (D) Radio ID34
Baud Rate Selections35
- Set Baud Rate35
- Figure 6: Baud Rate, and Other Items Related to the Data Port35
- Data Word Length and Parity36
- Modbus RTU36
- Rs232/48536
- Table 4: Data Word Length and Parity Selections36
- Setup Port37
- Turnoff Delay37
- Table 5: Data Port Protocol Selections37
- Table 6: Set-Up Port Selections37
- Flow Control38
- Table 7: Flow Control Selections38
Call Book Selections39
- Entering or Modifying Numbers in the Call Book40
- Figure 7: Call Book Menu40
- Programming the Call Book to Use 3 or 4 Repeaters41
- Figure 8: Calling a Slave through 4 Repeaters41
- Programming the Call Book in Multipoint Systems42
Radio Transmission Parameters43
- Figure 9: Radio Parameters Menu43
Radio Statistics54
- Figure 12: Modem Statistics54
Password57
- Setting a Password57
- Changing a Password57
- Disabling a Password58
Transceiver Location59
Front Panel Leds60
- Table 15: LED Status in Point to Point Mode60
- Table 16: LED Status in Multipoint Mode61
Rs232 Pin Assignments62
- Table 17: RS232 Pin Assignments62
Establishing Data Communication Links66
Rs422 & Rs-485 Operation70
- Table 21: RS 485 Half Duplex71
Other Settings72
Technical Specifications73
Troubleshooting77
Oem Board Level Mechanical Drawing79

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