JBL Control 10 Series Owner's Manual & Installation Manual page 5

Guide to the Pins for Connection -- The removable locking
input connector contains 4 terminals, as marked on the con-
nector. The pin functions are listed on the label located on the
terminal cover plate.
CONNECTION
1 2 3 4
+
IN IN
Connecteor Pins
Pins 1 & 2 are the "+" and "-" inputs to the loudspeaker. Pins 1
& 2 are looped to pins 3 & 4, respectively (Pin 1 connects to Pin
3 and Pin 2 connects to Pin 4) inside the speaker. Pins 3 & 4 are
intended as loop-through connections to subsequent loud-
speakers. There are two possible hookup schemes for connect-
ing subsequent speakers, determined by the desired result from
the circuit whenever this speaker's connector gets disconnected
during troubleshooting:
Paralleling Input Terminals -- Connect the wire pair of the
subsequent speaker to pins 1 & 2 (in parallel with the input
wire pair). Whenever the connector is pulled out of the
speaker for troubleshooting, subsequent speakers will stay
connected. This can be useful during troubleshooting to
be able to disconnect a single loudspeaker at a time. In this
hookup scheme, no wires get connected to pins 3 & 4.
From Amplifier
or Previous
Speaker
Paralleling Input Terminals
+ -
'
-
+ Speaker 1
Power
Power Amplifier
Amplifier
Parallel System Hookup Diagram
Using Loop-Through Terminals (Pins 3 & 4) -- By connect-
ing the wire pair of the subsequent speaker to pins 3 & 4,
then all subsequent speakers will be disconnected when this
speaker's connector is disconnected during troubleshooting,.
This can be useful as a way to isolate problems to a section
of the distributed line while leaving the wires attached to the
connector.
+
Loop Loop
Thru Thru
Figure 6
To Subsequent
Speaker(s)
Figure 7:
Speaker 2 Speaker 3
Figure 8:
From Amplifier
or Previous
Speaker
+ -
Power
+
Amplifier
Power Amplifier
Choose whichever hookup pattern accommodates your instal-
lation best.
Step 4 – Open the Strain Relief Fitting / Terminal
Cover
Open the strain relief fitting by loosening the two set screws in
the backcan, then loosen the two horizontal screws, and slide
Loosen the screws holding the fitting's sliding piece of the in-
put-terminal cover and slide the cover open.
To
+
To
Subsequent
Subsequent
- Speakers
Speaker(s)
Step 5 – Plug connector into connector socket in
the speaker's terminal cup.
Plug Connector into Connector Socket. Shown with a single
cable (left) or with two cables for input and loop-through (right)
5
+
-
Figure 9:
Using Loop-Through Terminals
'
-
Speaker 1 Speaker 2
Figure 10:
Loop-Through System Hookup Diagram
Figure 11:
open the sliding cover.
Figure 12:
-
To Subsequent
+
Speaker(s)
To
+
Subsequent
+
To
Subsequent
- Speaker(s)
- Speakers
Speaker 3