The Sealevel Systems COMM+2/EX provides the PC with two direct RS-232/422/485 Asynchronous links to data collection and other devices. Fully independent operation of ports allows the configuration of the COMM+2/EX with either two RS-232 ports, two RS-422/485 ports or with a combination of one RS-232 port and one RS-422/485 port. Extended “AT” interrupts allow multiple serial ports to be assigned to different IRQ lines. We include our Advanced COM drivers for Windows 95/98/ME/NT/2000 and XP providing IRQ sharing, Windows serial diagnostics, and other enhanced features. Our Linux and QNX utilities are also included to simplify installation.

2 PORT ISA RS-232/422/485 Back to 2 Port

View The 3087 User Manual (PDF) Download The Serial Utility Disk

• Dual port field selectable RS-232/422/485 interface
• RS-485 two or four wire operation
• Data rates to 115K bps (Custom data rates available)
• Individually selectable interrupts (2-5, 7, 10-12 and 15)
• Windows Auto RS-485 driver software included
• Selectable address including COM1: – COM4: and any I/0 address up to 3FF Hex
• Multiple ports/Multiple cards can share the same IRQ
• RTS and CTS “Handshake” signals provided
• 16550 buffered UART standard
• Full array of enhanced UART options
• Includes Windows Advanced COM: drivers, utilities, INF files and help files to simplify installation