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THE LED INDICATOR:
E
N
The following list shows how the various connector wirings are displayed by the unit's LEDs:
G
L
I
S
¼ inch TRS (6,3mm
H
stereo jack)
LED 1: Sleeve
LED 2: Tip
LED 3: Ring
LED 4:
LED 5:
DIN port
LED 1: Pin 1
LED 2: Pin 2
LED 3: Pin 3
LED 4: Pin 4
LED 5: Pin 5
Phono (Cinch port )
LED 1: Shield
LED 2: Hot
LED 3:
LED 4:
LED 5:
Speakon
LED 1: -1
LED 2: +1
LED 3: -2
LED 4: +2
LED 5: +3
LED 6: -3
LED 7: +4
LED 8: -4
XLR
LED 1: Pin1
LED 2: Pin2
LED 3: Pin3
LED 4
LED 5
S-Video
LED 1: GND Y
LED 2: GND C
LED 3: Y
LED 4: C
USB
LED 1: VBUS
LED 2: D-
LED 3: D+
LED 4: GND
RJ45
LED 1: TX D1+
LED 2: TX D1-
LED 3: RX D2+
LED 4: BI D3+
LED 5: BI D3-
LED 6: RX D2-
LED 7: BI D4+
LED 8: BI D4-
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The Modes
The MCTXL has two operating modes:
ON: this is the manual modus, with the "left –right" buttons you can jump from one
connection to the next. Auto: In the Auto Mode, all the connections will be tested in a
sequence. You do not need to press the left right buttons to jump from a connection to the
other. This will be done automatically.
TESTING
How to test a standard balanced XLR cable:
On a standard balanced XLR cable the corresponding pins on each end of the cable are
directly connected to each other. Plug both ends of the cable into the cable tester and turn
the switch to the "on" position. If the cable is intact, both the red and green LEDs will light
up. This indicates a working connection between pin 1 on one side of the XLR cable and pin
1 on the other side. Now switch to position 2 and 3 with the "right" button. The respective
red and green LEDs should illuminate. A defective cable is indicated in a number of ways. If,
for example, there is no connection between the XLR cable's number 1 pins, neither of the
LEDs in position 1 will illuminate. If there is a short circuit across pins, the first LED
in one of the rows will illuminate along with either the second or third LED (or both) in the
row above or below. It is also possible to test mixed cables, for example XLR to ¼ inch TRS
(jack). Simply plug one end of the cable into the left side of the tester and the other into the
right side. Switch through the various test positions with the left/right buttons and check the
connections. Of course, to be able to evaluate the test results, it is necessary to understand
how the pins are connected to each other. The following diagrams illustrate the pin
connections of a variety of balanced and unbalanced cables.
8
E
N
G
L
I
S
H
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