ARRI ALEXA 35 Body & PL Mount Set (LBUS) - Manual (Page 11)

Camera Body Overview 11
Camera Right
1 VF 2 Viewfinder Connector
2 SDI 1 Connector
3 SYNC IN Connector
4 SDI 2 / RET IN Connector
5 TC (Timecode) Connector
6 BAT LED
7 ECS White Radio Antenna Connector
8 RS Connector
9 12V Connector
10 Mounting Points for Accessories
11 User Buttons 7-9
12 PWR Connector
13 ETH Connector
14 AUDIO Connector
15 Right Camera Status LED
VF 2 Viewfinder Connector (CoaXPress)
VF 2 is the second viewfinder port. The camera uses an industrial CoaXPress interface with an ARRI
custom connector to connect the MVF-2 viewfinder with the camera. The interface transmits power,
video and control data. The VF 2 connector supports cable lengths of up to 10 m (33 ft). The VF
connector supports hot plugging and comes without a key, so the viewfinder cables plug in regardless
of the connector's orientation.
SDI 1 & SDI 2 / RET IN (BNC)
Both SDI BNC connectors can be configured to output the following video signals:
422 1.5G HD
422 3G HD
444 3G HD
422 6G UHD
422 12G UHD
444 12G UHD (23.976, 24, 25, 29.97 and 30 fps progressive or psf) according to SMPTE ST 292-1:2012
(48, 50, 59.94 and 60 fps progressive) according to SMPTE ST 425-1:2014
(23.976, 24, 25, 29.97 and 30 fps progressive) according to SMPTE ST 425-1:2014
(23.976, 24, 25, 29.97 and 30 fps progressive) according to SMPTE ST 2081-10:2015
(48, 50, 59.94 and 60 frames fps progressive) according to SMPTE ST 2082-10:2015
(23.976, 24, 25, 29.97 and 30 fps progressive) according to SMPTE ST 2082-10:2015
The SDI 2 / RET IN connector can be configured in the camera menu to function either as SDI output or
as a Return In input, accepting 1.5G and 3G SDI signals.
SYNC IN (BNC)
The SYNC IN connector is a BNC connector for input of reference signals and accepts analog black
burst signals and tri-level HD signals for camera synchronization.
TC (5-pin LEMO)
The TC connector accepts and outputs LTC (Longitudinal Timecode) signals.
White Radio Antenna Connector (Female RP-SMA)
White radio allows for wireless lens control, lens data communication and remote control of camera
functions using the hand units of the ARRI Electronic Control System.
RS (3-pin Fischer)
The RS connector outputs regulated 24 V accessory power and can supply external devices with a load
of up to 3.0 A. Additionally, the RS connector outputs a shutter pulse signal and can be used to send a
remote start/stop signal to the camera.