Users Manual

Version 1.0 April 2001

CABLE TESTER

www.behringer.com

ENGLISH

CABLE TESTER CT100

1. INTRODUCTION

Congratulations! With the CT100, you have purchased an indispensable tool that enables you to easily check the most common cables used by musicians and sound engineers. Faulty cables are a common cause of failure in live and studio situations. This microprocessor-controlled device was designed to ensure fast, reliable problem location. Various test modes and the included belt clip add to its flexibility.

2. CABLE TESTER MODE

Move the ON switch to the CABLE TESTER position.
Insert one end of your cable into any OUT jack of the CT100. Connect the other end of the cable to any IN jack. The LEDs will indicate which input pins are connected to each output pin. Additionally, the GROUNDED SHIELD LED indicates whether a XLR OUT jacks shield is connected to the pin 1/sleeve signal.
2.1 How to test intermittent connections
The following method allows you to detect intermittent connections caused by wire breaks or faulty solder points. While in CABLE TESTER MODE, press RESET to store the current cable-wiring display and to clear the INTERMITTENT LEDs. Move the cable vigorously in all directions and watch the LEDs. Any change in wiring or break in the signal flow will cause the LED of the corresponding input pin to light up. The LED will stay lit until RESET is pressed again, assuring detection of even the shortest breaks in the signal flow. It is a good idea to repeat the test after resetting the LEDs to double-check the initial results.
3. INSTALLED CABLE TESTER MODE
This mode enables you to test cables in fixed installations or situations that dont allow you to connect both ends of the cable to the CT100.
Hold down the RESET button while moving the ON switch to the CABLE TESTER position. The ON LED will blink to indicate that the CT100 is in INSTALLED CABLE TESTER MODE.
To test a cable for short circuits, connect one end of the cable to the appropriate OUT jack of the CT100. The display works as in CABLE TESTER MODE (see chapter 2). However, it now indicates connections between out pins. If no LEDs light, the cable is free of short circuits.
3.1 Continuity check in INSTALLED CABLE TESTER MODE
For a continuity check, connect a shorting jack (a jack in which pins are short-circuited to one another) to the other end of the cable. If there are no breaks in the signal flow, the display will show the corresponding pins as being shorted to each other. If the display indicates no short circuit, there is a break in the signal flow.
The testing of intermittent connections works exactly as in CABLE TESTER MODE (see chapter 2.1). INSTALLED CABLE TESTER MODE will not indicate connections between out and in pins. This is done in CABLE TESTER MODE (see chapter 2).

4. TEST TONE MODE

Move the ON switch to the position TEST TONE. Do not use the TEST TONE MODE for MIDI cables!
TEST TONE MODE may be used to check signal flow and to facilitate level adjustments. It routes a test tone to the + pin (pin 2/tip) of all OUT jacks. Use the TEST TONE LEVEL switch to choose between +4 dBu, -10 dBV, or -50 dBV mic level. Please note that this mode is not intended to work as a voltage standard and that battery voltage will affect the test tone output level.
4.1 Selection between 1 kHz and 440 Hz
While in TEST TONE MODE, pressing RESET toggles between 1 kHz and 440 Hz. The TEST TONE LED indicates the selected frequency: On = 1 kHz, Off = 440 Hz.

5. PHANTOM POWER DETECT

In TEST TONE MODE, pins 2 and 3 are monitored for external DC voltage (commonly supplied for condenser microphones). The PHANTOM LEDs will light if DC voltage above approx. 9 V is detected.

6. WIRING

1/4", TT, 1/8" TRS connectors (mono or TS connectors also work)
MIDI connector (2 pins unused)
XLR connectors (pin numbers visible on connectors)

RCA connector

7. WARRANTY
For our current warranty terms, please refer to our website at http://www.behringer.com, or send us a request via e-mail at support@behringer.de, fax at +920 665, or telephone at +920 666.

8. MULTILINGUAL DOCUMENTATION
The following versions of this users manual can be downloaded free of charge at http://www.behringer.com: German, French, Spanish, Italian, Dutch, Finnish, Swedish, Danish, Portuguese and Greek.
The information contained in this manual is subject to change without notice. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any purpose, without the express written permission of BEHRINGER Spezielle Studiotechnik GmbH. BEHRINGER is a registered trademark. ALL RIGHTS RESERVED. 2001 BEHRINGER Spezielle Studiotechnik GmbH. BEHRINGER Spezielle Studiotechnik GmbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Mnchheide II, Germany Tel. +49 (0) / 92 06-0, Fax +49 (0) / 92 06-30
FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION
Responsible party name: Address: MUSIC Group Services USA, Inc. 18912 North Creek Parkway, Suite 200 Bothell, WA 98011, USA Phone: +Fax: +673 7647

Phone/Fax No.:

complies with the FCC rules as mentioned in the following paragraph: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Important information: Changes or modifications to the equipment not expressly approved by MUSIC Group can void the users authority to use the equipment.

CABLE TESTER

www.behringer.com

DEUTSCH

CABLE TESTER CT100

CT100 CT100

ON C A B L E T ES T E R

CT100 LED XLR OUT Shield

OUT IN

Pin 1 Ground/ GROUNDED SHIELD-LED
Pin RESET INTERMITTENT-LED RESET

INTERMITTENT-LED RESET

LED INTERMITTENT-LED
Installed Cable Tester Mode
R E SE T O N CABLE TESTER C T 0 Insta lled Cable Tester Mode

ON-LED

= 2 CT100 OUT LED
CT100 -10 dBV ON T E S T T ON E MIDI.
OUT hot TEST TONE LEVEL -50 dBV

+4 dBu

CTkHz 440 Hz TONE-LED 1 kHz = 440 Hz

440 Hz

RESET TEST =

CT3 PHANTOM LED 9

6.3 mm 3

3.5 mm & TT

MIDI 2
BEHRINGER BEHRINGER 2001 BEHRINGER Spezielle Studiotechnik GmbH