Black BoxメーカーRS0232の使用説明書/サービス説明書
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RS-232 ↔ RS-422 INTERF ACE CONVER TER 1 FEDERAL COMMUNICA TIONS COMMISSION AND INDUSTR Y CANADA RADIO FREQUENCY INTERFERENCE ST A TEMENTS This equipment generates, uses, and can radiate radio-freque.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 2 INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement) 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.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 3 TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the pr operty of the trademark owners.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 4 Contents Chapter Page 1.Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. Introduction . . . . . . . .
RS-232 ↔ RS-422 INTERF ACE CONVER TER 5 1. Specifications Speed — 64,000 bps, max. Connectors — RS-232 port: DB25 female; RS-422 port: DB37 female Indicators — 7 LEDs show status of RS-232 and RS-422 signals and indicate power ON.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 6 2. Introduction The RS-232 ↔ RS-422 Inter face Converter provides bi-directional synchronous or asynchronous conversion of all commonly used RS-232 and RS-422 signals.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 7 1. The Converter does not require special handshaking signals in order to operate. 2. The Converter should always be configured the opposite of the equipment it’ s connected to if straight-through cabling is used.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 8 3. Installation T o connect the Converter to your devices, follow these steps: 1. Attach the cable from the RS-422 device to the 37-pin female receptacle on the rear panel of the Converter . 2. Attach the cable from the RS-232 device to the 25-pin female receptacle on the rear panel of the Converter .
RS-232 ↔ RS-422 INTERF ACE CONVER TER 9 Figure 3-1. Board Layout Showing Component Locations. (Dashed Lines show DTE/DCE DIP Shunt Locations.) AC POWER CONNECTOR RS-422 CONNECTOR RS-232 CONNECTOR DI.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 10 Figure 3-2. Sample DIP-Shunt Setting. Figure 3-2 shows the DIP-shunt settings used for an application like the one illustrated in Figure 3-3a. NOTE The filled-in rectangles in Figure 3-2 indicate the jumpers that contain a DIP-shunt.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 11 Figures 3-3a and 3-3b show some typical synchronous applications. Figure 3-3. Synchr onous Applications. Applications involving asynchronous devices are also possible. Figure 3-4 illustrates a popular asynchronous setup, while Figure 3-5 shows the cabling involved.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 12 T HE R ECEIVER T ERMINA TION S WITCH This switch is marked S1 on the printed circuit-board diagram in Figures 3-1 and 3-2. This switch ser ves to terminate the receiver with pull-up and pull-down resistors in order to designate the receiver state and enable the Converter’ s anti-streaming function.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 13 Figure 3-5. Signal Flow Diagram A. RS-232 (Port is DTE) RS-422 (Port is DCE) 12 Terminal Ready A (-) 30 Terminal Ready B (+) DTR 20 CR8 (RS-422 DSR LED) 11 2.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 14 Figure 3-6. Signal Flow Diagram B. RS-232 (Port is DCE) RS-422 (Port is DTE) 12 Terminal Ready A (-) 30 Terminal Ready B (+) DTR 20 CR8 (RS-422 DSR LED) 11 2.
RS-232 ↔ RS-422 INTERF ACE CONVER TER 15 4. Ground Strap and Inter face Pinouts Signal grounds (Pins 19, 20, and 37 on the RS-422 inter face and Pin 7 on the RS-232 inter face) are connected together , but not connected to chassis ground (Pin 1).
1000 P ark Drive • Lawrence, P A 15055-1018 • 724-746-5500 • F ax 724-746-0746 © Copyright 1998. Black Box Corporation. All rights reserv ed..
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