SM Pro Audio CT-3: Multi-format automatic Cable tester - Manual (Page 5)

SM Ct3 Connections
S
M
P
R
O
A
U
D
IO
c
t
-
3
A
B
C
D
E
F
G
H
A. Receiver side
B. Loudness of the BEEP sound when testing cables and showing
channel 1 connection
C. Sender side (voltage goes OUT from here to a cable for testing)
D. The speed at which the testing of cables occurs
E. ON-OFF switch for the sender
F. Battery compartments for 2 x 9V DC batteries
G. Tone test - OFF - Cable Test switch
H. Input points and LED indication for the Tone test and continuity
tester.