3 Overview
The Kramer VS-81HDxl is a true 8x1 switcher for standard definition / high
definition SDI signals that lets you switch any one of the eight inputs to two
identical outputs. In particular, the VS-81HDxl:
•Features selector buttons that automatically light up in different colors—
green, when it detects a ‘standard definition’ signal, or blue, when it
detects a ‘high definition’ signal
•Operates to up to 2.97Gbps – enabling it to be used for standard definition,
high definition and 3G high definition serial digital video signals
(SD/HD-SDI)
•Includes cable equalization of up to 350m for SD1signals, 140m for
1.5GHz HD2 2
signals, and 120m for 3GHz HD signals
•Features reclocking and equalization on each input
•Is SMPTE 259M, 292M, 344M, 424M and DVB-ASI3
•Supports ANC data (embedded audio, Teletext, time code and so on)
compliant and
supports data rates of 270Mbps, 1483.5Mbps, 1485Mbps and 2970Mbps
•Features the ability to switch genlocked video signals according to timing
of the GENLOCK reference input. Switching according to the Bi-level or
Tri-level Genlock input according to SMPTE RP-1684
•Has an OFF button to disconnect the outputs
•Has a front panel lock button
The VS-81HDxl is housed in a 19" 1U rack mountable enclosure, and is fed from
a 100-240 VAC universal switching power supply.
Control the VS-81HDxl via the:
•Front panel buttons
•Infrared remote control transmitter
•Infrared remote extension cable transmitter, see section 4.1
•Remotely, by RS-232 or RS-485 serial commands transmitted by a touch
screen system, PC, or other serial controller
•ETHERNET
•Remote contact closure for forced operation
1 Standard Definition (SD) means an NTSC or PAL compatible video format, consisting of 480 (for NTSC) or 576 (for PAL)
lines of interlaced video
2 High Definition (HD) means a video format, consisting of 720 active lines of progressive video or 1080 lines of progressive
or interlaced video
3 Digital Video Broadcasting - Asynchronous Serial Interface
4 The sources must be genlocked to the GENLOCK input in order to switch cleanly