Whirlwind SC48RJ User Manual

Warranty

SC

NL/RJ45 CABLE ANALYZER

48

RJ

This product is warranted to be free of
defects in materials or workmanship to
the original purchaser for a period of three
years from the date of purchase. Should
warranty service be required, return the
unit postage paid along with the original
sales receipt to:

Whirlwind Music Dist., Inc.
99 Ling Road
Rochester NY 14612

Whirlwind will, at it’s option, repair or
replace the unit. This warranty does not
cover damage resulting from abuse,
unauthorized modifications or use of the
product in unintended applications.

RECEIVE

SEND

RECEIVE

1 2 3 4 5 6 7 8

SEND

OFF

OFF

48

3+

3-

4+

4-

RJ

2-

3

XLR

2+

1-

2

1+

1

SC

NL/RJ45 CABLE ANALYZER

RECEIVE

4-3- 4+3+2-2+1-1+

RECEIVE

4-3- 4+3+2-2+1-1+

SEND

The Whirlwind SC48RJ Cable Analyzer is a
convenient device for fully testing professional NL
multiline speaker cables, RJ45 Ethernet cables
and three pin XLR cables. The simple yet
comprehensive design can diagnose opens,
shorts, incorrect wiring or even customized wiring
configurations in cables with up to eight
conductors. The SC48 is powered by a single 9
Volt battery.

Operation

Service

Connect one end of the test cable to the
appropriate SEND connector and the other end to
the mating RECEIVE connector. Turning the
rotary switch from the OFF position will send
current to one of the SEND LED indicators and to
the same contact on the SEND connector. The
current flows through the cable and into the
RECEIVE connector and will light the
corresponding RECEIVE LED in a cable wired to
the same contact at each end. For cables wired
pin to pin, rotating through all of the positions
should light only SEND and RECEIVE LEDs for
the conductor that the switch is testing. Cables
with shorted conductors will light additional SEND
and RECEIVE LEDs identifying which wires the
conductor being tested is shorted to. Cables with
open conductors will light only the SEND LED.
Combinations of shorts and opens will light
patterns of LEDs that can identify the fault
conditions within the cable. The SC48 can also
identify custom wiring configurations.

RC

EE

IV

E

+1

-1

1

2+

R

EE

2

CI

E

N

DS

1+

S

E

ND

XLR

3

2

1

-

1

1+

O

F

F

2-

V

3

E

3+

4

2+

F

4+

-4

3-

5

2-

S

E D

N

F

3+

3-

4+

6

+3

7

3-

8

4+

4-

RE

C

E

IVE

SD

E

N

R

-4
C

E

I E

VE

ECE VE

IR

CASE SCREWS

Removing the six case screws provides access to
the 9 Volt battery compartment. The battery
should be changed when the SEND LED
becomes dim.