Hollyland Syscom 421S 4-Transmitter 1800' A/V Transmission System is a multi-cam control system that features a variety of features. It includes a 4x transmitter and 1x receiver, and it can be used with an Ethernet pass-through for streaming video.

It also supports Tally and other light fixtures and has built-in battery plates for 0.07 second latency.  The Hollyland 421S 4-transmiter A/V system supports Ethernet pass-through. It can be used to stream video to the Internet using RTSP. 

Mutli-Cam Transmitter Control System

4x Transmitters to 1 x Reciever 

0.07 Second Latency

SDI/HDMI Input and Output 

IP/RS-422/485 PTZ Camera Control

The Syscom 421S A/V transmission system from Hollyland is capable of handling up to four cameras. It features a single receiver and a carry case.

It can transmit video signals up to 1080p60 using HDMI and SDI.

It has a line-of-sight distance of 1800 feet with a latency of 0.07 second.

The receiver features four HDMI outputs and four SDI outputs, and it can be connected to a switcher or monitor. It has a dedicated output port for tally lights, and it can control multiple cameras using RS-422/485 or IP serial connections.

The Hollyland 421S A/V transmission system units feature an OLED display that shows various details, such as the channel, signal strength and resolution.

The receiver and transmitter have L-series batteries, while the other has a V-mounted battery plate. Both have a 2-pin power supply, which can be used for different DC power options.

The Syscom 421S from Hollyland is a 4-transmitter A/V system that can send video signals up to 1080p60 using HDMI and SDI. It can also be used to transmit line-of-sight signals. It can pass control and tally information over LAN and OLED displays.