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JULY 2002
IC1020A
IC1021A
IC1022A
Dual-Port USB Hub—RS-232/422/485
Quad-Port USB Hub—RS-422/485
Quad-Port USB Hub—RS-232/422/485
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
SUPPORT
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INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
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FCC AND IC RFI STATEMENTS FEDERAL COMMUNICATIONS COMMISSION and INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS Class B Digital Device. This equipment has been tested and found to comply with the limits for a Class B computing device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. This
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DUAL- AND QUAD-PORT USB HUBS EMC Directive Statement Products bearing the CE Label fulfill the requirements of the EMC directive (89/336/EEC) and of the low-voltage directive (73/23/EEC) issued by the European Commission. To obey these directives, the following European standards must be met: • EN55022 Class B—Limits and methods of measurement of radio interference characteristics of information technology equipment. • EN55024—Information technology equipment immunity characteristics limits and
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NOM STATEMENT 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. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser seguidas. 5. El aparato
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DUAL- AND QUAD-PORT USB HUBS 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato. 14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante. 15. En caso de existir,
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TRADEMARKS TRADEMARKS USED IN THIS MANUAL AT, IBM, and PS/2 are registered trademarks of International Business Machines Corporation. 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. 5
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DUAL- AND QUAD-PORT USB HUBS Contents Chapter Page 1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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CHAPTER 1: Specifications 1. Specifications Standards: USB version 1.1 Speed: RS-232: Up to 460.8 kbps; RS-422/485: Up to 921.6 kbps Indicators: IC1020A: (5) Status LEDs: (3) USB Enabled; (2) Port Activity; IC1021A, IC1022A: (9) Status LEDs: (5) USB Enabled; (4) Port Activity Connectors: IC1020A: (1) USB Type B; (2) DB9 male; IC1021A, IC1022A: (1) USB Type B, (4) DB9 male Temperature Tolerance: Operating: 32 to 122°F (0 to 50°C); Storage: -4 to +158F (-20 to +70°C) Relative Humidity: 10 to 90%
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DUAL- AND QUAD-PORT USB HUBS 2. Introduction 2.1 Overview The USB Hub equips the PC with 2 or 4 USB to RS-232/422/485 or RS-422/485 asynchronous serial ports. It gives you a versatile interface for common serial needs. Three models are available: • The Dual-Port USB Hub (IC1020A) has 2 USB ports to RS-232/422/485 serial ports. • The Quad-Port USB Hub (IC1021A) has 4 USB ports to RS-422/485 serial ports. • The Quad-Port USB Hub (IC1022A) has 4 USB ports to RS-232/422/485 serial ports. Unlike mo
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CHAPTER 2: Introduction 2.4 Connector Pin Assignments The IC1020A has one USB Type B connector and two DB9 male connectors. The IC1021A and IC1022A have one USB Type B connector and four DB9 male connectors. The pinouts for the DB9 connectors are described in Tables 2-1 and 2-2. Table 2-1. RS-422/485 DB9 male connector pin assignments. Signal Name Pin # Mode RX+ Receive Data Positive 1 Input RX- Receive Data Negative 2 Input TX- Transmit Data Negative 3 Output TX + Transmit Data Positive 4
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DUAL- AND QUAD-PORT USB HUBS 3. Installation 3.1 Operating System Installation Choose Install Software at the beginning of the CD and follow the prompts to install SeaCOM. 3.2 System Installation ® The screen capture shown in Figure 3-1 is taken from a Windows 98 installation. Your particular operating system may differ slightly from what is shown, based on your version of Windows. The USB Hub can be connected to any upstream type A port either at the PC host or an upstream hub. The USB Hub is h
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CHAPTER 3: Installation Figure 3-1. System Properties screen, Device Manager tab. You can access your new COM ports by using the assigned COM identifiers as shown in Figure 3-1. In this case, it is COM3, 4, 5, and 6. However, this assignment will vary from system to system. At this point, the hardware is recognized and ready to use. 11
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DUAL- AND QUAD-PORT USB HUBS 4. Configuration 4.1 Original Configuration This device ships with the following configuration: • 422 mode, • 120 ohm termination, • 1 K-ohm pull-up resistance on RX+, and • 1 K-ohm pull-down resistance on RX-. To change this configuration, you must open the box. Do this by removing the four screws located on the bottom. When reassembling, please note that the top and bottom are keyed to fit in only one direction. 4.2 Electrical Interface Selection Each of the two
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CHAPTER 4: Configuration Table 4-1. Jumper settings. Jumper Port RS-232 RS-422/485 E52 X E6 2 X E7 1 X E8 1 X Switch SW4 Settings To configure the ports on the Dual-Port USB Hub for RS-422/RS-485 instead of RS-232, select Jumper E7 for Port 1 and Jumper E6 for Port 2. (See Table 4-1.) When you are running RS-422 or RS-485, you also need to set switch SW4, positions 1 through 10 (see Figure 4-1 and Table 4-2). For example, to set RS-485 2-wire operation on Port 1, set SW4-1 and 4-2 to ON. For RS-
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DUAL- AND QUAD-PORT USB HUBS Table 4-2. DIP-switch SW4 settings. Switch Switch Port Description RS-485 RS-422 Setting Number L SW4-1 1 TX+ to RX+ ON OFF L SW4-2 1 TX- to RX- ON OFF T SW4-3 1 Termination ON ON PD SW4-4 1 1K Pull-Down ON OFF PU SW4-51 1KPull-Up ON OFF L SW4-6 2 TX+ to RX+ ON OFF L SW4-7 2 TX- to RX- ON OFF T SW4-8 2 Termination ON ON PD SW4-9 2 1K Pull-Down ON OFF PU SW4-10 2 1K Pull-Up ON OFF L = Loops TX+ to RX+ or RX- to TX- for two-wire operation. T = Adds a 120-ohm terminatio
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CHAPTER 4: Configuration Table 4-3. DIP-switch SW3 settings. Switch Switch Port Description RS-485 RS-422 Setting Number 485SW3-11 Mode (4-wire) 485 ON OFF NE SW3-2 1 485 Mode, No Echo (2-wire) ON OFF 485SW3-32 Mode (4-wire) 485 ON OFF NE SW3-4 2 485 Mode, No Echo (2-wire) ON OFF NE = No Echo. In a two-wire setup, the receiver will not echo back the transmitted data. 4.2.2 QUAD-PORT USB HUB—RS-422/485 (IC1021A) Each of the four DB9 ports on the Quad-Port USB Hub can be set as either RS-422 or RS
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DUAL- AND QUAD-PORT USB HUBS Table 4-4. DIP-switches SW2 and SW4 settings. Switch Switch Port Description RS-485 RS-422 Setting Number L SW2-1 3 TX+ to RX+ ON OFF L SW2-2 3 TX- to RX- ON OFF T SW2-3 3 Termination ON ON PD SW2-4 3 1K Pull-Down ON OFF PU SW2-53 1KPull-Up ON OFF L SW2-6 4 TX+ to RX+ ON OFF L SW2-7 4 TX- to RX- ON OFF T SW2-8 4 Termination ON ON PD SW2-9 4 1K Pull-Down ON OFF PU SW2-10 4 1K Pull-Up ON OFF L SW4-1 1 TX+ to RX+ ON OFF L SW4-2 1 TX- to RX- ON OFF T SW4-3 1 Termination
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CHAPTER 4: Configuration Figure 4-4. RS-422/485 interface configuration. NOTE Switch positions SW3-1 and 2 are for Port 1, SW3-3 and 4 are for Port 2, SW1-1 and 2 are for Port 3, and SW1-3 and 4 are for Port 4. Table 4-5. DIP-switch SW1 and SW3 settings. Switch Switch Port Description RS-485 RS-422 Setting Number 485SW1-13 Mode (4-wire) 485 ON OFF NE SW1-2 3 485 Mode, No Echo (2-wire) ON OFF 485SW1-34 Mode (4-wire) 485 ON OFF NE SW1-4 4 485 Mode, No Echo (2-wire) ON OFF 485SW3-11 Mode (4-wire) 4
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DUAL- AND QUAD-PORT USB HUBS each port. When selecting a configuration for your Hub, refer to Tables 4-6 through 4-8 and Figures 4-5 and 4-6. Jumpers E1, E2, E3, E4, E5, E6, E7, and E8 To configure Port 1 on the Quad-Port USB Hub for RS-232, select Jumper E8 on the circuit board. To configure Port 2 for RS-232, select Jumper E5. To configure Port 3 for RS-232, select Jumper E4, and for Port 4, select Jumper E1. (See Table 4-6 for all the jumper settings.) Table 4-6. Jumper settings. Jumper Port
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CHAPTER 4: Configuration Figure 4-5. Switches SW2 and SW4. NOTE Switch positions SW4-1, 2, 3, 4, and 5 are for Port 1. Switch positions SW4-6, 7, 8, 9, and 10 are for Port 2. Switch positions SW2-1, 2, 3, 4, and 5 are for Port 3. Switch positions SW2-6, 7, 8, 9, and 10 are for Port 4. Table 4-7. DIP-switches SW2 and SW4 settings. Switch Switch Port Description RS-485 RS-422 Setting Number L SW2-1 3 TX+ to RX+ ON OFF L SW2-2 3 TX- to RX- ON OFF T SW2-3 3 Termination ON ON PD SW2-4 3 1K Pull-Down
