Datasheet

Technical information :

Signal indication :

Red LED shows High signal level > +3V

Green LED shows Low signal level < -3V....

Breakout system

25 switches, 50 probe point

GPD circuit :

One of the LED number 7 will light

if the voltage exceeds 2 volt.

Current Loop circuit :

Tests for 4,10,20 & 60 mA , and shows direction

Cable test :

Tests all lines in the DB25 connection.

Red LEDs # 7 show when signal ground

connection in the cable is broken .

Dimension : 188 x 105 x 25 mm

Weight : 230 grams

Comtest 100C is the result of many years experience in designing and incorporating customer’s

requests. It offers more features than the many times bigger products from our competitors. To our

knowledge the only Breakout Box with integrated DB9/25 adaptation, Current Loop and Ground

Potential Difference test.

The 100 Compact uses high bright LED’s, the typical load is only 1.2 mA per monitor. It contains a

25 pole dual-in-line switch with DTE and DCE interface sockets on both sides of the breakout panel.

It allows breaking and crosshatching all 25 lines by means of the switches and the jumper cables.

The Current Loop circuits is able to test most of the Short Haul Modems used to extend

communication distance (only 50 Ft for RS232). The Ground Potential Difference test shows if

Signal Ground of the both connected devices are of the same «earth potential » (a must for a

successful data communication).

Front and Back panel provide easy to read instructions. The back panel carries a guide describing all

signals with pin number and description. All contacts are gold plated to ensure superior electrical

contact.

The LEDs are mounted, isolated from each other, behind the panel. In contrast to the black panel,

weak and high speed signals are easier to see, no « Christmas tree » effect like on the Breakout Boxes

with dazzling LEDs and a white background.

The Comtest 100 Compact comes complete with two DB 9/25 adapters, 30 cm detachable

ribbon cable, jumper cables, 9V battery clip, user manual and a small pouch for transport.

For further information, please contact :

Specifications are subject to change without notice.

Back panel