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4.0 Hardware Installation
4.7.5 PAGE/MIC/LINE 4 source input
A microphone or an audio source can be connected to the PAGE/
MIC/LINE 4 input using one of the following cable types.
4.7.6 DIRECT IN/CONTROL source input
A microphone or an audio source can be connected to the
DIRECT IN input using one of the following cable types. The con
-
trol (PTT) input requires a normally open switch.
RCA
T
S
T
S
PTT
XLR
3
1
2
3
PTT
Phone
Plug
(Balanced)
T R S
T
R
S
PTT
Phone
Plug
(Unbalanced)
TS
T
S
PTT
PTT
Normally
Open Switch
(latching)
Source Connector
4400 PAGE/MIC/LINE 4
2
1
RCA
T
S
T
S
PTT
XLR
3
1
2
3
PTT
Phone
Plug
(Balanced)
T R S
T
R
S
PTT
Phone
Plug
(Unbalanced)
TS
T
S
PTT
PTT
Normally
Open Switch
(latching)
Source Connector
4400 DIRECT IN/CONTROL
2
1