Black Box IC174C manual

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Table of contents for the manual

  • Page 1

    CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mail order: Black Box Corporation , 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com MARCH 200[...]

  • Page 2

    DUAL POR T RS-232 SERIAL INTERF ACE FEDERAL COMMUNICA TIONS COMMISSION AND CANADIAN DEP ARTMENT OF COMMUNICA TIONS RADIO FREQUENCY INTERFERENCE ST A TEMENTS 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 in[...]

  • Page 3

    DUAL POR T RS-232 SERIAL INTERF ACE Contents Chapter Page 1. Specifications...................................................................................................1 2. Introduction ....................................................................................................2 2.1 Overview ...........................................[...]

  • Page 4

    1 CHAPTER 1: Specifications Protocol — Asynchronous Number of Ports — 2 Speed — IC110C: Up to 115.2 Kbps; IC174C: 460.8 kbps and higher Operation — RS-232 Connectors — (2) DB9M Maximum Distance — 50 ft. (15.2 m) @ 19.2 Kbps with 2500 pF max. cable capacitance (lower capacitance will allow greater distances) Communications Chip — IC110[...]

  • Page 5

    2 DUAL POR T RS-232 SERIAL INTERF ACE 2.1 Overview The Dual Port RS-232 Serial Interface provides your PC system with two RS- 232 asynchronous ports. Connect to any device that uses the RS-232 protocol, such as modems, data-entry terminals, and plotters. The Serial Interface also includes a serial utility diskette with Seacom, a DOS interrupt and d[...]

  • Page 6

    3 CHAPTER 2: Introduction 2.3 Features Listed below are the special features your Serial Interface offers. • Each port is independently addressable. • Eight interrupt options, including AT interrupts, for simple integration into existing systems. • IRQs can be shared or individually set for each port. • Supports Interrupt Sharing—only one[...]

  • Page 7

    4 DUAL POR T RS-232 SERIAL INTERF ACE 2.4 T echnical Description The Dual Port RS-232 Serial Interface provides the PC/XT™/AT/80X86 computer with two additional serial ports for terminals, modems, printers, etc. The Dual Port RS-232 Serial Interface can be configured as COM1: through COM4:, or any other I/O address. The Dual Port RS-232 Serial In[...]

  • Page 8

    5 CHAPTER 2: Introduction Pin Number Signal Name Mode 3 Transmit Data (TD) Output RS-232 7 Request To Send (RTS) Output RS-232 4 Data Term Ready (DTR) Output RS-232 5 Ground (GND) –––––––––––– 2 Receive Data (RD) Input RS-232 1 Data Carrier Detect (DCD) Input RS-232 6 Data Set Ready (DSR) Input RS-232 8 Clear To Send (CTS) I[...]

  • Page 9

    6 DUAL POR T RS-232 SERIAL INTERF ACE NOTE Be sure to set the address selections and jumper options before installation. Each serial port on the Dual Port RS-232 Serial Interface occupies 8 consecutive I/O locations. A DIP switch is used to set the base address for these locations. Be careful when selecting the base address as some selections confl[...]

  • Page 10

    7 you can determine the switch setting for a particular address by using the following illustration. The illustration shows the correlation between the DIP switch setting and the address bits used to determine the base address. In the figure below, the address 300 hex through 307 hex is selected (300 HEX =11 0000 0XXX in binary representation). Not[...]

  • Page 11

    8 DUAL POR T RS-232 SERIAL INTERF ACE NOTE Be sure to set the address selections and jumper options before installation. The board contains several jumper straps for each port which must be set for proper operation. Port Enable/Disable Each port on the Dual Port RS-232 can be enabled or disabled with switch position 8 on the DIP switch. The port is[...]

  • Page 12

    9 Figure 4-1. Header E1 and E2 (IRQ 4 selected). Headers E3 and E4 select the (normal) single-interrupt-per-board mode or the multi-interrupt mode, which allows you to share both interrupts on this card. The multi-interrupt mode also allows you to share the IRQ signal(s) with other cards that support multiple interrupts. Figure 4-2. Headers E3 and [...]

  • Page 13

    10 DUAL POR T RS-232 SERIAL INTERF ACE IMPOR T ANT You MUST set up the operating system BEFORE you physically install the Card. 5.1 Installing the Adapter in Y our Operating System If you are installing an ISA adapter in DOS, OS/2 ® , or QNX, please refer to the appropriate directory on one of the Serial Utilities Disks for instructions. 5.1.1 W I[...]

  • Page 14

    11 CHAPTER 5: Installation 4. Replace the screw. 5. Replace the cover. If you wish to change any resources assigned to the adapter, refer to the help file installed in the Black Box folder in the Start, Programs menu. Installation is complete.[...]

  • Page 15

    12 DUAL POR T RS-232 SERIAL INTERF ACE U6 R3 SW1 C1 C3 U3 C8 P1 U4 U1 P2 SW2 U7 J1 1 6 5 9 J4 C9 C5 R2 C4 U5 PORT1 PORT2 E1 E2 2 3 4 5 10 11 12 15 2 3 4 5 10 11 12 15 C2 U2 C6 Y1 U9 U6 M N E3 E4 1 1 U10 D1 R4 D2 R5 1 1 14 13 25 1 6 1 6 5 9 J3 5 9 J2 R1 C7 Appendix: Circuit-Board Design[...]

  • Page 16

    13 APPENDIX: Circuit-Board Design A22 A23 A24 A25 A26 A27 A28 A11 A9 A8 A7 A6 A5 A4 A3 AEN A8 A6 A4 AEN A3 A5 A7 A9 RESET A0 A1 A2 2 4 6 8 GND 1 VDO/VSS A1 A2 A3 A4 Y1 Y2 Y3 Y4 G 74LS244 11 13 15 17 GND 19 VDO/VSS A1 A2 A3 A4 Y1 Y2 Y3 Y4 G U5 74LS244 20 +5V 10 GND WR/ RD/ 9 7 5 3 BWR/ BRD/ GND 15 13 11 10 12 14 16 PORT 1 GND 3 5 7 9 12 14 16 18 U5 [...]

  • Page 17

    1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 2000. Black Box Corporation. All rights reserved.[...]