DIGI INTERNATIONAL, INC. MC/4I+, MC/8I+ (RS-422/485 VERSION) Card Type Serial Processor 80C186 Processor Speed Unidentified Chipset Unidentified Maximum Onboard Memory 256KB dual-ported RAM I/O Options Serial ports (5 for MC/4i+, 9 for MC/8i+) Data Bus MCA Card Size Full height, full length [Image] CONNECTIONS Function Label Function Label RS-422 or RS-485 CN1 Header to H2B H2A asynchronous serial ports via DB-78 connector RS-422 or RS-485 CN2 Header to H2A H2B synchronous serial port via RJ-45 connector Header to H1B H1A Header to H3B H3A Header to H1A H1B Header to H3A H3B Note:Standard serial ports are provided on an included adapter cable. USER CONFIGURABLE SETTINGS Setting Label Position » Shared memory window is 32KB JP1 Pins 2 & 3 closed Shared memory window is 128KB JP1 Pins 1 & 2 closed EPROM SIZE SELECTION Setting J5 J6 16KB Pins 1 & 2 closed Pins 1 & 2 closed 32KB Pins 1 & 2 closed Pins 1 & 2 closed 64KB Pins 1 & 2 closed Pins 2 & 3 closed 128KB Pins 2 & 3 closed Pins 2 & 3 closed SYNCHRONOUS PORT PINS 1 & 2 CONFIGURATION Pin 1 Pin 2 J1 CTS positive CTS negative Pins 1 & 2 closed Receive/transmit clock Receive/transmit clock Pins 2 & 3 positive negative closed SYNCHRONOUS PORT PINS 9 & 10 CONFIGURATION Pin 9 Pin 10 J2 RTS positive RTS negative Pins 1 & 2 closed Transmit/receive clock Transmit/receive clock Pins 2 & 3 positive negative closed