The ATEM 4 M/E Constellation IP Plus is the large model in the Constellation IP range, built for major broadcast facilities and live events. It handles 64 inputs and 64 outputs, all routable as aux, over sixteen 100G QSFP28 Ethernet connections arranged as eight redundant pairs, each pair carrying eight video inputs and eight outputs. The design is fully SMPTE-2110 native, and every IP video port is SMPTE-2022-7 compliant, so identical streams can run over separate network switches and the output carries on untouched if one path fails.

Redundancy across the network, format handling on every input

Dedicated frame rate and format converters sit on all 64 inputs, converting any source to the switcher standard automatically. The switching engine carries 16 ATEM Advanced Keyers with advanced chroma keying, four multiviews with up to 64 total views, two SuperSource processors for a total of 12 DVEs, and four media players with fill and key, while the audio mixer runs to 132 channels with 6-band parametric EQ and expander, gate, compressor and limiter dynamics.

Broadcast-standard formats and timing

Standards cover 720p, 1080i and 1080p through to 2160p60 in 10-bit 4:2:2, and the optional Blackmagic IP10 codec carries 2160p59.94 and 2160p60 as 2110 IP video. IEEE 1588-2008 PTP v2 timing runs on two redundant clock ports, NMOS IS-04/IS-05 handles discovery and connection management, and two 10G Ethernet connections cover panels and control alongside a separate 1G management port.

Chassis, monitoring and camera integration

The 3RU chassis draws up to 390W through dual internal 100-240V AC power supplies, with quiet front-to-back cooling and a built-in HD LCD, speaker and headphone jack for local programme monitoring. ATEM Software Control for Mac and Windows is included, USB audio integrates with Fairlight Live, and a Blackmagic SDI Expander 8x12G links 12G-SDI cameras into the system complete with programme return, tally, talkback and camera control.