Black BoxメーカーIC174Cの使用説明書/サービス説明書
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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 rad.
DUAL POR T RS-232 SERIAL INTERF ACE Contents Chapter Page 1. Specifications...................................................................................................1 2. Introduction ...........................................................
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.
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.
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.
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.
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) ––––––.
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.
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).
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.
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.
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.
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.
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 U.
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 G.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 2000. Black Box Corporation. All rights reserved..
デバイスBlack Box IC174Cの購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Black Box IC174Cをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはBlack Box IC174Cの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Black Box IC174Cの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Black Box IC174Cで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Black Box IC174Cを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はBlack Box IC174Cの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Black Box IC174Cに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちBlack Box IC174Cデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。