in U.S.A.

Benedict Computer Handheld Serial Test and Monitor Equipment.

Please call (650)323-0148 or Email us for fast answer(C) Benedict Computer 2013


Sample App


Contact RS232 Break Out  Boxes

Hand held Serial Communications Test Equipment

RS232, RS422, RS485 Serial Asynchronous / Synchronous Data Line Monitor / Analyzer - DLM400
Specifications or Release Notes and Manual

The DLM400 is a Battery Powered Serial Monitor, Tester, and Emulator for Analyzing, Viewing, and Uploading Data at Speeds to 230.4K . The DLM400 has Menu Selectable RS422, RS423, RS232, RS485  and MIL-Std-188-114 interfaces. DLM400 Functional Screens

 RS232 Serial Synchronous Monitor / Tester DLM150 Specifications

Very Compact Asynchronous and Synchronous Monitor and Tester  with BERT, Differential Timer, and  Performance tests.

RS232 Serial Synchronous / Asynchronous Data Line Monitor - DLM200
Specifications or Download Release Notes/Manual

Compact data analyzer with 8 line display and 64 keys plus PC style keypad

RS232 Serial Synchronous / Asynchronous Data Line Monitor - DLM250
Specifications or release notes

DLM200 with 256K RAM 9 Tristate LED's and higher data rates

DLMVIEW Windows program used to capture, log, export, and view data from a DLM200/400 series Monitor


DLM400 Picture
Example of how to use a DLM400 wired to Test TTL board level signals of a GPS IC showing NMEA broadcast Invert signals and Rs422 option.

Left Click  to enlarge
Functional TTL testing Screen

For further information please contact Tech Support at Benedict Computer
  Williamsburg, VA 23188 / (650) 323-0148
(No Voice Mail; you will get a human or a  human will call you back!)