Black Box RS-232485/422 Converter Plus, RS-232485/422 Opto-Isolator/Converter Manual

Page 3 - que el aparato eléctrico sea operado.

2 RS-232 ↔ 485/422 CONVERTERS 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 guarda...

Page 4 - NOM STATEMENT

3 NOM STATEMENT 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 aten...

Page 5 - TRADEMARKS USED IN THIS MANUAL

4 RS-232 ↔ 485/422 CONVERTERS TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of thetrademark owners.

Page 6 - CONTENTS; Contents; Chapter

5 CONTENTS Contents Chapter Page 1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3. Installation . . . . . ....

Page 7 - Up to 115 kbps, transparent to data; Temperature Tolerance:; to 95% relative humidity, noncondensing

6 RS-232 ↔ 485/422 CONVERTERS 1. Specifications Optical Isolation: IC109A, IC109AE, IC109C only Interface: (1) asynchronous RS-232 port (DTE/DCE selectable); (1) asynchronous RS-485 port with improved surge protection and switch-selectable line terminationor line bias Connectors: (1) DB25 female RS-...

Page 8 - CHAPTER 1: Specifications; Speed; NOTE; Speed and distances will depend on actual operating conditions.

7 CHAPTER 1: Specifications Typical Speed Versus Distance (4-wire point-to-point 26-AWG twisted pair): Speed Distance 1200 bps 4 miles (6.4 km) 2400 bps 3 miles (4.8 km) 4800 bps 2.3 miles (3.7 km) 9600 bps 1.7 miles (2.7 km) 19,200 bps 1.2 miles (1.9 km) 38,400 bps 0.9 mile (1.4 km) 64,000 bps 0.75...

Page 11 - Figure 1. Layout of the Printed Circuit Board.

10 RS-232 ↔ 485/422 CONVERTERS NOTE When the jumper W9 (CTS) is in the ON position and jumper W15 is int h e A - B p o s i t i o n , t h e R S - 4 8 5 d r i v e r i s a l w a y s t u r n e d o n t o e n a b l etransmission of data. Therefore, half-duplex transmission cannot beperformed. See Section ...

Page 12 - CHAPTER 3: Installation; 85/422 Converter is configured as a DCE device (DIP shunt; 85/422 Converter’s RS-485 driver can be set to be enabled one of

11 CHAPTER 3: Installation 3.1.4 CTS D ELAY (W9 J UMPER ) When the transmitter of a device is first turned on, an unstable carrier signal istransmitted for several milliseconds. If data was sent during this period, it would bereceived as distorted information. Setting a CTS delay on the RS-232 ↔ 485...

Page 13 - Driver Enabled by Data; 85/422 Converter adds a small delay each time it stops

12 RS-232 ↔ 485/422 CONVERTERS Driver Enabled by Data The RS-485 driver can also be enabled without requiring an RS-232 control lead tobe asserted. When jumper W15 is placed in the B-C position, the driver is enabledwhen data is received on the RS-232 port of the RS-232 ↔ 485/422 Converter. As soon ...

Page 14 - Multipoint

13 CHAPTER 3: Installation Point-to-Point When only two devices are connected to the line in a point-to-point application,each device should have the termination network connected to the line. Set switchS2 to the “TERM” position. Multipoint For multipoint applications, switch S2 should be in the “UN...

Page 16 - Function

15 CHAPTER 3: Installation Table 1. DCE Jumper Settings. NOTE For additional information on the jumper requirements, see Section 3.1. Function Jumper Requirements 1. Configure RS-232 port as DCE XW1 in A position 2. Signal ground connected to frame ground • Connected W7 is IN (solder your own 100-oh...

Page 20 - 8 5 / 4 2 2 C o n v e r t e r . S i n c e C T S i s n o t u s e d w h e n t h e

19 CHAPTER 3: Installation Figure 4. Simplified Functional Block Diagram (DTE Operation). NOTE T h e d e l a y s e t t i n g s f o r W 9 a p p l y o n l y t o t h e C T S o u t p u t o f t h e R S - 2 3 2 ↔ 4 8 5 / 4 2 2 C o n v e r t e r . S i n c e C T S i s n o t u s e d w h e n t h e RS-232 ↔ 48...

Page 23 - No line bias; Typical Applications; 85/422 Converters terminated by setting switch S2 to the TERM

22 RS-232 ↔ 485/422 CONVERTERS Table 2 (continued). DTE Jumper Settings. Function Jumper Requirements 9. RS-485 Interface Line Biased (Fail- S3 Off No line bias Safe), Receive S3 On Line biased NOTE If line bias is on, the RS-485 CD will ALWAYS be on. 3.3 Typical Applications This section describes ...

Page 25 - 85/ 422 Converter devices networked together, up to 64 units can be

24 RS-232 ↔ 485/422 CONVERTERS Figure 7 shows a typical multipoint, 4-wire, full- or half-duplex connection. Figure 8shows a typical multipoint, 2-wire, half-duplex connection. In the multipointapplications depicted in Figures 7 and 8, the devices at the extreme opposite endsof the installation are ...

Page 26 - Sample 4-Wire Multipoint Configuration

25 CHAPTER 3: Installation Figure 8. Multipoint, 2-Wire (Half-Duplex). Sample 4-Wire Multipoint Configuration In the following application, an industrial controller is used to gather informationfrom several remote programmable logic controller (PLC) stations (see Figure 9).A system protocol has been...

Page 28 - driver of each remote RS-232

27 CHAPTER 3: Installation 7. Since all the remote PLC stations must be inactive until addressed, the RS-485 driver of each remote RS-232 ↔ 485/422 Converter must not be constantly enabled (W9 of each remote RS-232 ↔ 485/422 Converter must be set to a position other than ON). The remote PLCs are fai...

Page 29 - Pins 9 through 25 are not used.

28 RS-232 ↔ 485/422 CONVERTERS Appendix A. Pinning Table 3. RS-232 interface (* denotes pins that are used). Pin Circuit Description Signal Type Directionwhen configured asDCE DTE 1* AA Protective Ground Ground - 2* BA Transmitted Data Data Input Output 3* BB Receive Data Data Output Input 4* CA Req...

Page 31 - User-Selectable Options; DTE

30 RS-232 ↔ 485/422 CONVERTERS Quick Reference: User-Selectable Options Use this list as a quick-reference guide when you need to change the jumpersettings. An asterisk (*) designates the factory-preset jumper settings. XW1A DCE* XW1B DTE W8 A-B* 4-wire B-C 2-wire W15 A-B* RTS/CD enabled B-C Data en...