Outline of product

The signal of various devices such as the signal of the shoulder type and the handy type camera recorder is transmitted by the optical fiber cable.
A single optical fiber cable enables long-distance transmission of camera video signals, microphone audio, AES/EBU, return signals, tally signals, intercams, camera remote controls, genlock signals, and LANs required for system cameras (studios).

Configuration of 8K camera optical fiber transmission system

Specifications of AT-4820

Input
SDI InputSDI IN 1 - 10 : BNC×10 12G-SDI/6G-SDI/3G-SDI/SD-SDI
TC InputTC IN : DE-15 Connector (female)×1 *
Output
SDI Return OutputSDI RET OUT : BNC×1 12G-SDI/6G-SDI/3G-SDI/SD-SDI
B.B OutputGENLOCK OUT : BNC×1
TC Output TC OUT : BNC×1
TC OUT : DE-15 Connector (female)×1 *
DC Power
DC Input  Via OPT Cable from Base Station AR-4821

When the AT-4821 is DC-driven, the AT-4820 cannot be DC-powered.

BATTERY : V-mount×1 for V-mount Battery
DC 12V IN : XLR 4P (male)×1
DC Output  DC 15V OUT : V-mount×1 for Camera
DC 15V OUT : XLR 4P (female)×1
DC 15V OUT : CAMTAP×2
DC Power Output Max.Approx. 170W when connecting with AR-4821.
* Output may be limited due to conditions such as load and input.
Audio
Audio Input AES IN : DE-15 Connector (female)×1 *
CA IN 1/2 : DE-15 Connector (female)×1 -20dBm, unbalance  *
Audio Output AES OUT : DE-15 Connector (female)×1  *
PGM OUT 1/2 : DE-15 Connector (female)×1 -20dBm, unbalance  *
Intercom
Intercom HeadsetINTERCOM : XLR 4P (male)
Tally
Tally Indicator(Side connector panel) RED TALLY×1, with Hi/Lo/OFF Switch
Remote
Remote Connector REMOTE 1 : 8P×1 RS-422/RS-232
Switch automatically when connecting cables.
REMOTE 2 : 12P×1 RS-422/RS-232
Switch automatically when connecting cables.
LANC ConnectorLANC : DE-15 Connector (female)×1  *
LAN ConnectorLAN : RJ45×1 1 Gbps
Optical fiber cable
SocketLEMO (Default) or Tajimi (Option)
Maximum DistanceApprox. 2km (1.25miles)
DC power is supplied from the base station via optical fiber cable. Depending on the cable you use, the distance may be shorter. For 12G-SDI approx. 1km.
General Specifications
Power Supply/Voltage(DC Operation) DC IN : DC 12 V / Approx. up to 20W
Operation Temperature0℃ to +40℃ (+32°F to +104°F)
Save Temperature-20℃ to +60℃ (-4°F to +140°F)
Dimensions151(W) X148(H) X115(D)mm (Excluding Protrusions)
WeightApprox.1.5 kg

*DE-15 connector is shared with AUDIO-CA IN 1/2, AUDIO-PGM OUT 1/2, AES IN, AES OUT, LANC, TC IN, and TC OUT.

Specifications of AR-4821

Output
SDI OutputSDI OUT 1-10 : BNC×2×10 Each two outputs 12G-SDI/6G-SDI/3G-SDI/SD-SDI
TC OutputTC OUT : BNC×1
TC OUT THROUGH OUT: BNC×1 TC IN input signal through output
Input
SDI Return InputSDI RET IN : BNC×1 12G-SDI/6G-SDI/3G-SDI/SD-SDI
B.B OutputGENLOCK IN : BNC×1 VBS
TC Output TC IN : BNC×1
DC Power
DC Input  DC IN (4:+12V 1:GND) : XLR 4P (male)×1

AR-4821 cannot supply DC power to the AT-4820 during DC drive.

DC Output  via OPT Cable to Camera Adaptor AT-4820
DC Power Output Max.

Approx. 200W
* Output may be limited due to conditions such as load and input.

Audio
Audio Input AES EBU-PGM IN : XLR 3P (female)×1
AUDIO-PGM IN 1/2 : XLR 3P (female)×2  +4dBm/0dBm
Audio Output AES EBU-CA OUT : XLR 3P (male)×1
AUDIO-CA OUT 1/2 : XLR 3P (male)×2
Intercom
Intercom HeadsetINTERCOM PROD/ENG : XLR 3P (female)×2
4W/2W INTERCOM TALLY : DB-25 Connector×1
Intercom HeadsetHEADSET : XLR 4P (male)×1
Tally
Tally signal InputTALLY IN : BNC x1 VOLTAGE TYPE/2-4V GREEN/4.1-5V RED
4W/2W INTERCOM TALLY : DB-25P×1
Remote
Remote Connector REMOTE 1 : 8P×1 RS-422/RS-232
Switch automatically when the AT-4820 is cabled.
REMOTE 2 : 12P×1 RS-422/RS-232
Switch automatically when the AT-4820 is cabled.
LANC ConnectorLANC :2.5φ×1
LAN ConnectorLAN : RJ45×1 1 Gbps
Optical fiber cable
PlugLEMO (Default) or Tajimi (Option)
Maximum Distance

Approx. 2km (1.25miles)
DC power is supplied to the camera adapter via a fiber optic cable.
Depending on the cable you use, the distance may be shorter. For 12G-SDI approx. 1km.

General Specifications
Power Supply/Voltage(AC Operation) AC IN : AC 85-240 V*AR-4821 cannot supply DC power to the AT-4820 during DC drive.
(DC Operation) DC IN : DC 12 V / Approx. up to 40W
Operation Temperature0℃ to +40℃ (+32°F to +104°F)
Save Temperature-20℃ to +60℃ (-4°F to +140°F)
Dimensions215(W) X160(H) X317(D)mm 
WeightApprox.5 kg

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