Talkback Connection
The two female 5 pin XLR connectors let you plug in two headsets, which allows two people to
communicate via talkback simultaneously. For example, the camera operator’s headset can be
plugged into the first XLR connector, and a crane operator or fellow crew member, such as a
sound operator, could plug into the second XLR headset connector. A pinout diagram for the
headset XLR connector is included below.
Headset XLR Pinout Diagram
External views
Pins
Signal
I/O
Specifications
5-pin XLR
‘headset’ connector
1
Intercom MIC (Y)
In
Carbon (-20 dBu, unbalanced)
Dynamic (-60 dBu, balanced/
unbalanced)
Manual (-20/-40/-60 dBu,
balanced/unbalanced)
2
Intercom MIC (X)
In
3
GND
–
GND
4
Intercom left
Out
11 dBu (VR Max, 250 Ω Load)
5
Intercom right
Out
11 dBu (VR Max, 250 Ω Load)
The corresponding intercom controls are located above each headset connection.
For more information on how to use the intercom controls, refer to the ‘Operating the
Blackmagic Camera Fiber Converter’ section.
The intercom controls are used to mix
Tracker Interface connector
talkback audio levels
1
2
3
5
4
POWER
RET 1
1
3
2
RET 2
LIGHT
FOCUS
REC
IRIS
TALLY
FIBER
1
3
2
PGM 1
MIC
ON
OFF
ENG
PROD
INCOM
INTERCOM 1
PGM 2
ON
OFF
PGM 1
MIC
ON
OFF
ENG
PROD
INCOM
INTERCOM 2
PGM 2
TRACKER
DC OUT
SDI OUT
1
2
3
4
5
1
2
3
4
5
1
2
2
1
3
LINE
MIC
+48V
OFF
AES/EBU
LINE
MIC
+48V
OFF
AES/EBU
POWER
RET 1
1
3
2
RET 2
LIGHT
FOCUS
REC
IRIS
TALLY
FIBER
1
3
2
PGM 1
MIC
ON
OFF
ENG
PROD
INCOM
INTERCOM 1
PGM 2
ON
OFF
PGM 1
MIC
ON
OFF
ENG
PROD
INCOM
INTERCOM 2
PGM 2
TRACKER
DC OUT
SDI OUT
1
2
3
4
5
1
2
3
4
5
1
2
2
1
3
LINE
MIC
+48V
OFF
AES/EBU
LINE
MIC
+48V
OFF
AES/EBU
157
Camera Unit Connections