Black Box IC183C, RS-422, RS-485 1 2 3 4 5 6 7 8, A9 A5

RS-422/485 SERIAL INTERFACE PLUS, 4-PORT

Table 3-2. Address Selection Table.

Address lines A9 A8 A7 A6 A5

Address Selected 12345

280-29F Off On Off On On

2A0-2BF Off On Off On Off

380-39F Off Off Off On On

1A0-1BF On Off Off On Off

2E0-2FF Off On Off Off Off

Figure 3-1 shows the correlation between the DIP-switch setting and the

address bits used to determine the base address. In the example below,

address 2E0 is selected as a base. Address 2E0 in binary is XX 10 111X XXXX

where X = a non-selectable address bit.

1 2 3 4 5 6 7 8A9 A5

Figure 3-1. DIP Switch Setting.

Contents

Main RS-422/485 Serial Interface Plus, 4-Port Page Contents Page RS-422/485 SERIAL INTERFACE PLUS, 4-PORT 1. Specifications 2. Introduction 2.1 Overview 2.2 Whats Included 2.3 Factory-Default Settings Table 2-1. Factory Default Settings. Port # Base Address IRQ Electrical Specifications 2.4 Technical Description RS-422/485 SERIAL INTERFACE PLUS, 4-PORT 3. Card Setup 3.1 Address Selection Table 3-1. Available Address Combinations. Switch 6 Switch 7 Switch 8 Port 1 Port 2 Port 3 Port 4 1 2 3 4 5 6 7 8 A9 A5 ON OFF Table 3-3. Port to Connector Table. Port # Connector Location Address Example (Base=2E0) 3.2 Jumper Selections 3.3 IRQ Selection Page Page 3.5 RS-485 Enable Modes Page Page AT RT NE Table 3-4. Jumper Functions. Name Function 3.8 Clock Modes Page Page RS-422/485 SERIAL INTERFACE PLUS, 4-PORT 4. Installation IMPORTANT 4.1 Software Installation 4.2 Hardware Installation 5. Troubleshooting Page Appendix A: Connector Pin Assignments Page Appendix B: Board Layout Figure B-1. Board Layout. Appendix C: Electrical Interface RS-422 RS-485 Appendix D: Asynchronous Communications Figure D-1. Asynchronous Communications Bit Diagram.