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.
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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: •...
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.
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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.
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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.
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;...
• (1) USB cable for connecting to the upstream host/hub. • (1) CD-ROM disk containing drivers and installation software. • This users’ manual. If anything is missing or damaged, contact Black Box at 724-746-5500. 2.3 Technical Description The Dual-Port USB Hub (IC1020A) uses two chips. The Quad-Port USB Hubs (IC1021A and IC1022A) use four chips.
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.
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.
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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.
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.
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CHAPTER 4: Configuration Table 4-1. Jumper settings. Jumper Port RS-232 RS-422/485 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).
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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 Switch SW3 Settings To select RS-485 mode (4-wire or 2-wire operation) or RS-422 mode (4-wire operation), set the DIP switch labeled SW3 on the circuit board. (See Figure 4-2 and Table 4-3.) Figure 4-2.
CHAPTER 4: Configuration Table 4-3. DIP-switch SW3 settings. Switch Switch Port Description RS-485 RS-422 Setting Number 4.2.2 Q USB H —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-485. You do not need to set a jumper to select these options. Instead, you just need to set DIP-switches SW1, SW2, SW3, and SW4.
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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 Switch SW1 and SW3 Settings To select RS-485 mode (4-wire or 2-wire operation) or RS-422 mode (4-wire operation), set the DIP switches labeled SW1 and SW3 on the circuit board. (See Figure 4-4 and Table 4-5.)
CHAPTER 4: Configuration Figure 4-4. RS-422/485 interface configuration. NOTE Table 4-5. DIP-switch SW1 and SW3 settings. Switch Switch Port Description RS-485 RS-422 Setting Number 4.2.3 Q USB H —RS-232/422/485 (IC1022A) You have a variety of configuration options for the four DB9 ports on the Quad- Port USB Hub.
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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.
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CHAPTER 4: Configuration Figure 4-5. Switches SW2 and SW4. NOTE Table 4-7. DIP-switches SW2 and SW4 settings. Switch Switch Port Description RS-485 RS-422 Setting Number...
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DUAL- AND QUAD-PORT USB HUBS Table 4-7 (continued). DIP-switches SW2 and SW4 settings. Switch Switch Port Description RS-485 RS-422 Setting Number Switch SW1 and SW3 Settings To select RS-485 mode (4-wire or 2-wire operation) or RS-422 mode (4-wire operation), set the DIP switches labeled SW1 and SW3 on the circuit board. (See Figure 4-6 and Table 4-8.) Figure 4-6.
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CHAPTER 4: Configuration Table 4-8. DIP-switch SW1 and SW3 settings. Switch Switch Port Description RS-485 RS-422 Setting Number...
TD to RD. If you decide to test the modem control signals, a full-pin loopback plug will be required. Details on loopback plugs are included on WinSSD. (A loopback plug is available by special order from Black Box. Call Technical Support for details.) 4.
• Package it carefully. We recommend that you use the original container. • If you are shipping the USB Hub 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.
DUAL- AND QUAD-PORT USB HUBS Appendix B. Electrical Interfaces B.1 RS-232 Quite possibly the most widely used communication standard is RS-232. This implementation has been defined and revised several times and is often referred to as EIA/TIA-232. The IBM ® PC AT ®...
APPENDIX B: Electrical Interfaces B.3 RS-485 RS-485 is backward-compatible with RS-422; however, it is optimized for partyline or multidrop applications. The output of the RS-422/485 driver is capable of being Active (enabled) or Tristate (disabled). This capability allows multiple ports to be connected in a multidrop bus and selectively polled.
DUAL- AND QUAD-PORT USB HUBS Appendix C: Asynchronous Communication In serial data communication, 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.
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APPENDIX C: Asynchronous Communication Because each bit in asynchronous communication is sent consecutively, it is easy to generalize asynchronous communication by stating that each character is wrapped (framed) by pre-defined bits to mark the beginning and end of the serial transmission of the character.
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