Pub. 42004-376E
400-001 and 400-002NS RigCom Stations
Page 8 of 18
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-376E.docx
08/19
TB2
—
AC Power Terminal Block
Table 2. AC Power Connection at Terminal Block TB2
Name
Pin No. Description
AC
P
OWER
H
1
external ac power supply positive terminal
No connection when external ac power supply is not used.
AC
P
OWER
N
3
external ac power supply neutral terminal
No connection when external ac power supply is not used.
AC
P
OWER
GND
ac power ground terminal must be electrically connected to the
chassis
TB3
—
DC Power Terminal Block
Table 3. DC Power Connection at Terminal Block TB3
Name
Pin No. Description
DC
P
OWER
I
NPUT
+
2
external dc power supply positive terminal
No connection when external dc power supply is not used.
DC
P
OWER
I
NPUT
–
1
external dc power supply negative terminal
No connection when external dc power supply is not used.
TB4
—
Audio and Low Voltage Control Terminal Block
Table 4. Audio Signal and Low Voltage Control Connections at Terminal Block TB4
Name
Pin No. Description
A
UX
M
IC
+
1
Positive terminal for the auxiliary microphone.
A
UX
M
IC
–
2
Negative terminal for the auxiliary microphone.
E
XT
C
ONT
+
3
Talk/listen control signal for Master/Slave operation. No
connection in Common Line mode.
E
XT
C
ONT
–
4
Ground reference for talk/listen control signal for Master/Slave
operation. No connection in Common Line mode or UNBAL
audio configuration.
S
HIELD
5
Ground reference for shield terminations.
A
UDIO
+
6
Positive side of the audio port line during 600-ohm or 15-kilohm
termination configuration.
A
UDIO
–
7
Negative side of the audio page port line during 600-ohm or 15-
kilohm termination configuration.
F
OOTSWITCH
+
8
Positive side of auxiliary footswitch that operates as the local
push-to-talk switch.
F
OOTSWITCH
–
9
Negative side of auxiliary footswitch that operates as the local
push-to-talk switch.
