Hollyland Syscom 421S 2TX & 1RX Wireless Video System Hollyland

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The Hollyland Syscom 421S 2TX + 1RX kit carries picture and sound from two cameras to a single receiver up to 550 m away with 0.07 s latency. The transmitters have SDI and HDMI inputs, the receiver four SDI and four HDMI outputs. The system also carries tally, RS485/RS422 control for PTZ cameras and Ethernet wirelessly, and expands to up to four transmitters.

Multi-camera transmission without cables on the floor: weddings, sports, concerts, corporate events and church services. Up to four Syscom 421S systems – sixteen transmitters – can work in one location at once. The transmitter runs on 7–36 V from an NP-F970 battery, the receiver on 18–36 V from a V-mount or G-mount battery.

Two cameras, one receiver

Wireless audio and video transmission for multi-camera production with tally, control and Ethernet.

550 m0.07 sSDI + HDMI1080p60RS485/RS422Tally

Expandable to four cameras

The receiver works with up to four transmitters on one RF channel; add stand-alone Syscom 421S transmitters to the kit.

Rugged metal body

Industrial metal construction for transmitters and receiver, with display and control buttons on the front.

Regional channels

5.1–5.9 GHz band with frequency configuration by territory; change the channel on the receiver and the transmitters follow.

Up to four cameras on one channel

The receiver takes picture and sound from up to four transmitters on the same RF channel. The 2TX kit starts with two cameras; two more stand-alone Syscom 421S transmitters take it to the full four.

SDI and HDMI on both ends

Each transmitter has an SDI and an HDMI input plus a 3.5 mm tally output. The receiver outputs all four channels at once on four SDI and four HDMI outputs – straight to the switcher and to monitors.

Control of PTZ cameras and switchers

The RS485/RS422 interface on transmitter and receiver carries control signals wirelessly: a camera controller in the gallery connected to the receiver drives the PTZ camera at the transmitter. Set the same baud rate on both sides.

Tally all the way to the camera

A tally light connects to the 3.5 mm TALLY output on the transmitter. The receiver links to a tally box via USB, and the tally box to the switcher with a D-Sub 25 cable – the switcher’s buttons then light up the lamps at the cameras.

Ethernet and RTSP stream

The LAN port on transmitter and receiver bridges the network wirelessly – for example an IP camera at the transmitter with the network in the gallery. The receiver can deliver an RTSP stream over LAN.

• Transmitter ×2
• Receiver ×1
• 5 GHz antenna ×15
• User manual ×1
• 7-inch magic arm ×2
• OTG cable ×1
• DC conversion cable ×2
• RS485/RS422 cable ×3
• Power adapter ×1

• Range: up to 550 m (1,800 ft)
• Latency: 0.07 s
• Frequency: 5.1–5.9 GHz, bandwidth 40 MHz
• TX power / RX sensitivity: max. 22 dBm / −90 dBm
• HDMI video formats: 480p60, 576p50, 720p50/60, 1080i50/60, 1080p24/25/30/50/60
• SDI video formats: 720p50/60, 1080i50/60, 1080p24/25/30/50/60
• Transmitters: up to 4 per receiver; up to 4 systems (16 transmitters) at once
• Streaming: RTSP via the receiver’s LAN
• Transmitter – inputs: SDI (BNC female), HDMI (Type A)
• Transmitter – other interfaces: 3.5 mm tally output, USB-C, LAN (RJ45), RS485/RS422, DC, 4× RP-SMA
• Transmitter – power supply: 7–36 V DC; battery NP-F970 or U60 and batteries of the same series
• Transmitter – power consumption: < 12 W
• Transmitter – weight: 431.5 g (without antennas)
• Transmitter – dimensions (L × W × H): 88 × 30 × 144 mm (without antennas and battery plate)
• Receiver – outputs: 4× SDI (BNC), 4× HDMI (Type A)
• Receiver – other interfaces: USB, LAN (RJ45), RS485/RS422, DC, 4× RP-SMA
• Receiver – power supply: 18–36 V DC; large-capacity V-mount or G-mount battery
• Receiver – power consumption: < 32 W
• Receiver – weight: 1621 g (without antennas)
• Receiver – dimensions (L × W × H): 148 × 62 × 242 mm (without antennas and battery plate)
• Manufacturer code: HL-SYSCOM 421S-2TX1R