Table of Contents
Advertisement
Quick Links
SEPTEMBER 2001
IC266A
USB Single-Port Hub
(RS-422/485)
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
Advertisement
Table of Contents
Related Manuals for Black Box USB Single-Port Hub IC266A
Summary of Contents for Black Box USB Single-Port Hub IC266A
- Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
-
Page 2: Federal Communications Commission
FCC AND IC RFI STATEMENTS/CE NOTICE FEDERAL COMMUNICATIONS COMMISSION and INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. - Page 3 USB SINGLE-PORT HUB (RS-422/485) NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
- Page 4 10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor. 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato.
- Page 5 USB SINGLE-PORT HUB (RS-422/485) TRADEMARKS USED IN THIS MANUAL ® is a registered trademark of Underwriters Laboratories Incorporated. Windows ® is a registered trademark of Microsoft Corporation. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
-
Page 6: Table Of Contents
A.1 Before Calling Technical Support ..16 A.2 Calling Black Box ..... . 17 A.3 Shipping and Packaging . -
Page 7: Specifications
USB SINGLE-PORT HUB (RS-422/485) 1. Specifications 1.1 General Manufacturing: UL ® 94V0 rating; 100% electrically tested; solder mask over bare copper or solder mask over tin nickel. Connectors: (1) DB25 male; (1) USB Type B Indicators: LEDs: (1) USB Enabled, (1) TX, (1) RX Mean Time Between Failures (MTBF): Greater than 150,000 hours Temperature Tolerance: Operating: 32 to 122°F (0 to... -
Page 8: Connector Pin Assignments (Db25 Male)
1.2 Connector Pin Assignments (DB25 Male) Name Ground Receive Positive Receive Negative CTSB CTS+ Clear to Send Positive CTSA CTS- Clear to Send Negative DSRB DSR+ Data Set Ready Positive DSRA DSR- Data Set Ready Negative DCDB DCD+ Data Carrier Detect Positive DCDA DCD- Data Carrier Detect Negative... -
Page 9: Introduction
USB SINGLE-PORT HUB (RS-422/485) 2. Introduction 2.1 Overview The USB Single-Port Hub (RS-422/485) equips the PC with one USB to RS-530/422/485 asynchronous serial port, providing a versatile interface for common RS-530/422/485 needs. The advantage of this product over more traditional approaches is that it doesn’t require opening the computer case, nor does it require resources such as I/O ports or IRQs. -
Page 10: Technical Description
2.3 Technical Description The USB Single-Port Hub (RS-422/485) uses a USB UART. This chip features programmable baud rate, data format, a 128-byte dual-port TX buffer, and a 384-byte dual-port RX buffer. The RS-422/485 transceiver supports data rates up to 921.6 kbps. 2.4 Features •... -
Page 11: Installation
USB SINGLE-PORT HUB (RS-422/485) 3. Installation 3.1 Operating System Installation Choose Install Software at the beginning of the CD. Select the Serial I/O software drivers and install SeaCOM. 3.2 System Installation The screen shots pictured in this section are taken from a Windows ®... - Page 12 Connect the USB Single-Port Hub (RS-422/485) to an upstream Host or Hub. New Hardware Found USB Single-Port Hub Windows has found new hardware and is locating the software for it. Figure 3-1. New Hardware Found screen. This indicates that the system has recognized the new device and will now locate a driver.
-
Page 13: Configure The Adapter
USB SINGLE-PORT HUB (RS-422/485) Since you have already installed the software by running “Setup,” simply click “Next” to proceed. The drivers that were installed during setup will automatically be used to configure the adapter. Add New Hardware Wizard USB Single-Port Hub Windows has finished installing the new hardware device. - Page 14 System Properties General Device Manager Hardware Profiles Performance View device by type Computer CD ROM Disk Drives Display adapters Floppy disk controllers Hard disk controllers Keyboard Monitors Mouse Multi-function adapters Network adapters Ports (C0M & LPT) SCSI controllers Properties Figure 3-4. System Properties, Device Manager tab. You can access your new COM port by using the assigned COM identifier.
-
Page 15: Configuration
USB SINGLE-PORT HUB (RS-422/485) 4. Configuration 4.1 Electrical Interface Selection The port on the USB Single-Port Hub (RS-422/485) can be used as RS-530/422/485, RS-422, or 2-wire RS-485. This is selectable via the DIP-switch SW1. The chart below describes each of the positions’ functions. Please refer to the next page for switch setting examples. -
Page 16: Switch Examples
CHAPTER 4: Configuration 4.2 Switch Examples Please use these examples to configure your USB Single- Port Hub (RS-422/485). Figure 4-1. RS-530/422, 4-wire 485 master (default). Figure 4-2. RS-485, 2-wire with echo. Figure 4-3. RS-485, 2-wire no echo. -
Page 17: Appendix A. Troubleshooting
USB SINGLE-PORT HUB (RS-422/485) Appendix A. Troubleshooting A.1 Before Calling Technical Support Serial Utility test software is supplied with the USB Single-Port Hub (RS-422/485) and will be used in the troubleshooting procedures. Using this software and following these simple steps, most common problems can be eliminated without calling Technical Support. -
Page 18: Calling Black Box
Then configure the hub for your application. A.2 Calling Black Box If you determine that your USB Single-Port Hub (RS-422/485) is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box at 724-746-5500. APPENDIX A: Troubleshooting... -
Page 19: Shipping And Packaging
• Package it carefully. We recommend that you use the original container. • If you are shipping the USB Single-Port Hub (RS-422/485) for repair, make sure you include everything that came in the original package. Before you ship, contact Black Box to get a Return Authorization (RA) number. -
Page 20: Appendix B. Electrical Interfaces
APPENDIX B: Electrical Interfaces Appendix B. Electrical Interfaces RS-530 RS-530 (EIA-530) compatibility means that RS-422 signal levels are met, and the pinout for the DB25 connector is specified. The EIA (Electronic Industry Association) created the RS-530 specification to detail the pinout, and define a full set of modem control signals that can be used for regulating flow control and line status. - Page 21 USB SINGLE-PORT HUB (RS-422/485) common ground connection. Differential interfaces are typically more immune to noise or voltage spikes that may occur on the communication lines. Differential interfaces also have greater drive capabilities that allow for longer cable lengths. RS-422 is rated up to 10 Mbps and can have cabling 4000 feet long.
- Page 22 APPENDIX B: Electrical Interfaces allow the electrical presence of the driver to be removed from the line. Only one driver may be active at a time and the other driver(s) must be tri-stated. RS-485 can be cabled in two ways: two-wire and four-wire mode. Two- wire mode does not allow for full-duplex communication and requires that data be transferred in only one direction at a time.
-
Page 23: Appendix C. Asynchronous Communications
USB SINGLE-PORT HUB (RS-422/485) Appendix C. Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character. Data rate, error checking, handshaking, and character framing (start/stop bits) are pre-defined and must correspond at both the transmitting and receiving ends. - Page 24 APPENDIX C: Asynchronous Communications Figure C-1. Asynchronous communications bit diagram. This special bit is called the parity bit. Parity is a simple method of determining if a data bit has been lost or corrupted during transmission. There are several methods for implementing a parity check to guard against data corruption.
- Page 25 USB SINGLE-PORT HUB (RS-422/485) character. The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends. The communication parameters are baud rate, parity, number of data bits per character, and stop bits (that is, 9600,N,8,1).
- Page 26 © Copyright 2001. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...