The Extron SW4 12G HD‑SDI is a four-input, two-output 12G‑SDI switcher. It switches multi-rate SDI video, embedded audio, and other ancillary data between four source devices and delivers simultaneous output signals to a pair of SDI displays or sink devices. The SW4 12G HD‑SDI supports video resolutions up to 4K/60, HDR, and data rates up to 11.88 Gbps, including all common serial digital video data rates specified by SMPTE and ITU standards. To ensure signal integrity over long cable runs, the switcher features automatic input cable equalization and output reclocking. The SW4 12G HD‑SDI offers RS‑232, front panel, and auto-input switching control options, allowing integration into a variety of applications and environments.
The SW4 12G HD-SDI switcher provides automatic cable equalization on inputs to compensate for attenuation on incoming signals up to 230 feet (70 meters) for 12G‑SDI transmissions, 787 feet (240 meters) for HD‑SDI, and 984 feet (300 meters) for SDI. For quick identification of the selected signal, LED indicators on the front panel provide visual confirmation of the detected data rate. Timing of the input video signal is reshaped and restored at each output, eliminating high frequency jitter. The switcher provides dual buffered outputs that simultaneously deliver the selected input video, along with up to 16 channels of embedded audio, closed captioning, and time code data to two displays.
Switcher setup, configuration, and firmware updates are performed through the USB port that is conveniently located on the front panel. Controls on the front panel provide quick access to system settings, and these controls can be locked to prevent unauthorized use in non-secure environments. When the unit is installed in locations such as a lectern or under a conference table, automatic switching between inputs streamlines system operation. The switcher can also be controlled, configured, and monitored remotely through the RS-232 port.
The SW4 12G HD-SDI switcher is housed in a 1U, half rack width enclosure suitable for rack-mounted or mobile applications.