OCHP Video · Live System Documentation

Broadcast video
configuration.

Single source of truth for the ATEM 4 M/E Constellation 4K — sources, outputs and where they land, hardware panel mappings, and camera control.

Switcher ATEM 4 M/E 4K sources outputs cameras
SDI source inputs
Configured outputs
Physical destinations
Cameras under control
01 · Inputs

SDI sources

Twenty SDI inputs feeding the ATEM. Cameras line the first sixteen, with HyperDeck, Resolume, Web Presenter, ProPresenter feeds, and the two ME multiviewers filling out the rest.

Camera
Playback
Graphics
Stream
Multiview
02 · Outputs · Routing

Where each output lands

ATEM outputs travel through transports (baluns, splitters, network switches, wall controllers) before reaching the physical destination. Click any node to focus its connections.

ATEMSwitcher output
BalunHDMI over Ethernet
SplitterOREI 1×8 distribution
Wall CtrlNovastar
RoomPhysical destination
Video signal flow
ATEM outputs → transports → rooms. Line color matches the destination accent.

Internal & reserved outputs

Mask channels, ME / DSK feeds, and color generators that never leave the rack — useful for confidence checks but not physically patched.

03 · Camera control

Camera control & VISCA

Per-input camera type assigned in ATEM's Camera Control panel. VISCA is left disabled today — the URSAs are controlled over SDI return; PTZ is not currently routed.

04 · Hardware panel

Button mapping

M/E rows on the Advanced Panel. Each button maps to the source on the same number — keeping the layout 1-to-1 with input slots makes recovery from a hot-swap trivial. Open inputs are dimmed so the unwired buttons stand out.