Datasheet
A COMPLETE « 100 LED » RS232 INTERFACE TROUBLE SHOOTER TESTING
BOTH DB25 AND DB9 POLE SERIAL COMMUNICATION.
Easily carried around, a time and trouble-saving tool for engineers, computer salesman and those
who install, repair and use RS-232 communication equipment. The Comtest was constructed by
field service engineers and famous for its convenience in use and reliability. The Comtest 100C can
test, and/or convert DB9 to DB25 serial communication, necessary for those working with portable
computers.
TECHNICAL INFORMATION :
· Totally 102 high efficiency LEDs.
· Breaks and redirects all 25 lines.
· Four-state monitor on all signal lines on both DTE and DCE.
· Two DB9/25 pole adapters, conversion table on main unit.
· Full cable test function and Ground Potential difference test.
· Four level bi-directional Current Loop test (4,10,20 and 60 mA).
· Jumper cable set and detachable 12 inch ribbon cable.
· Easy operation, lightweight and compact.
· English user manual



