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Amplicon USB485Ui Manuals
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Amplicon USB485Ui manual available for free PDF download: Instruction Manual
Amplicon USB485Ui Instruction Manual (33 pages)
USB TO RS232/RS485 SERIAL COMMUNICATIONS INTERFACE WITH ISOLATION OPTION
Brand:
Amplicon
| Category:
USB Interfaces
| Size: 0 MB
Table of Contents
Table of Contents
3
1 Introduction
7
The Products Described in this Manual
7
Features of the Usb232U/485Ui Series of Data Communications Interfaces
7
General Description
8
Enhanced Features
9
What the Package Contains
9
The Amplicon Warranty Covering the Usb232U/485Ui Interfaces
9
Contacting Amplicon Liveline Limited for Technical Support or Service
9
Technical Support
10
Repairs
10
2 Getting Started
12
General Information
12
Installing the Interface
12
Windows 98 Installation
12
Windows 2000/XP Installation
12
Linux Installation
12
Usb232U/485Ui Configuration Jumper Settings
13
RS485 Full Duplex / Half Duplex Operation
13
Jumper Selection for Full Duplex Operation
13
Jumper Selection for Half Duplex Operation with Echo
13
Jumper Selection for Half Duplex Operation Without Echo
13
Figure 2.1 Jumper Settings for Full Duplex Operation
13
Figure 2.2 Jumper Settings for Half Duplex Operation with Echo
13
Figure 2.3 Jumper Settings for Half Duplex Operation Without Echo
13
Transmission Line Termination
14
Termination Resistors for RS422/485 Receivers
14
Jumper Factory Settings Summary
14
Figure 2.4 Jumper Settings for Termination Resistor Selection
14
Figure 2.5 Factory Jumper Setting Summary
14
Application Software
15
Installation Testing
15
3 Making the Connections
16
External Connections
16
USB Connector
16
RS232 9-Way Port
16
Figure 3.1 USB Connector Termination Assignment
16
RS422/485 9-Way Port
17
Connector Wiring for RS422/485 Full/Half Duplex
17
The Ground Connections
17
USB232U Ground Connections
17
Figure 3.2 RS232 9-Way Port Pin Designations
17
Figure 3.3 RS422/485 Amplicon Standard Port Pin Designations
17
Usb485Ui Ground Connections
18
Choice of Cable
18
4 Using the Serial Communications Devices
19
Why Isolate
19
Application Notes
20
Applicable Standards
20
RS Standards
20
RS232 Application Notes
20
RS232 Electrical Levels
21
RS232 Data Rates and Cable Lengths
21
RS232 Cable Adapters
21
RS422/485 Application Notes
21
RS422/485 Parameters
22
RS422/485 Signalling Sense
22
RS422/485 Multi-Drop Applications
22
Figure 4.1 Communications Standards Summary
22
RS422/485 Bus Termination
23
Figure 4.2 RS422 Connected in Broadcast Mode
23
Figure 4.3 RS485 Connected in Multi-Drop, Half Duplex Mode
23
RS422/485 Data Rates and Cable Lengths
24
Cabling of RS422/485 Bus
24
USB Application Notes
24
Data Rates and Flow Control for USB to RS232
24
Testing and Troubleshooting
25
Testing with the Application Software
25
The Loop Back Connections
26
Loop-Back Testing Using a Terminal Emulator
26
Figure 4.4 RS232 Loop-Back Test Connections
26
Figure 4.5 RS422/485 Loop-Back Test Connections
26
5 Programming
28
Programming with Windows 98, 2000 and XP Device Drivers
28
Half Duplex Transmission Turnaround
28
Appendix A - Technical Specifications
29
Hardware Specification
29
Usb
29
Series B Connector
29
USB232U RS232 Port
30
9-Way Connector
30
Data Rate
31
ESD Protection
31
Usb485Ui RS422/485 Port
31
9-Way Connector
31
Rx I/P Termination
31
Tx O/P Protection
31
I/O Isolation
31
Modes
31
Transmit Turnaround
31
Uart
32
Baud Rates
32
Data Bits
32
Stop Bits
32
Parity
32
Pc Interface
32
Compatibility
32
Host Resources
32
USB Frame Rate
32
USB Packet Size
32
Environmental Conditions
33
Specific Conditions
33
Dimensions
33
Temperature Range
33
Power Requirements
33
Dissipation
33
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