HP 12040D 8-Channel Asynchronous Multiplexer Interface

HP 12040D 8-Channel Asynchronous Multiplexer Interface

Monterey Bay Communications carries the HP 12040D 8-Channel Aysnchronous Multiplexer Interface.  
The HP 12040D is an Asynchronous Multiplexer Interface that can connect up to eight asynchronous terminal, printer, or "black box" devices to an HP 1000 A-Series Computer System using a single I/O slot.

• EIA RS-423-A and RS-232-C/CCITT V.24 compatability
  
  
• On-board microprocessor off-loads computer
  
  
• On-board buffering with DMA capability
  
  
• Programmable data rates using two baud rate generators to eliminate hardware speed strapping
  
  
• Automatic baud rate generator configuration
  
  
• Programmable character size, parity checking, termination character, and number of stop bits for flexible control of transmission format
  
  
• Parity, overrun, and framing error detection
  
  
• Bi-directional X-on, X-off control during multiplexer data transmission
  
  
• Two of ten baud rate groups may be simultaneously selected
  
  
• HP 37214A Systems Modem Support, which can provide up to 7 ports having full modem control capabilities
  
  
• Virtual Control Panel (VCP) support
  
  
• Full Duples or Echoplex transmission
  
  
• Capability to edit data prior to passing it to computer memory, featuring backspace erase
  
  
• An 8-port Dsitribution Panel for RS-232 connections