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8x1 Computer Graphics Video & Stereo Audio Step-In Switcher


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The VP-81KSi is a high-performance analog step-in switcher for computer graphics video with resolutions up to WUXGA and unbalanced stereo audio signals. The unit can switch any one of eight inputs to one computer graphics video, one unbalanced and one balanced stereo audio and one twisted pair output. The VP-81KSi works in conjunction with up to eight VGA Remote Control Step-in Modules including the SI-1VGA (for TBUS-10), SI-VGAT (under the table) and WSI-1VGA (for standard TBUSes).

Features & Benefits

  • High Bandwidth - 440MHz (-3dB), CAT 5 (Rec Out) up to WUXGA.
  • HDTV Compatible.
  • Kr-isp Advanced Sync Processing - Ensures compatibility with a wide range of computers (even if the sync level is too low) by restoring the sync signal waveform.
  • Remote Step-In Switching - Up to 8 users, connected through SI-1VGA remote input/switching step-in modules, can each step in to switch the input to the local remote PC.
  • I-EDIDPro Kramer Intelligent EDID Processing - Intelligent EDID handling & processing algorithm ensures Plug and Play operation for analog systems.
  • Multiple Unit Cascade - Cascades up to 8 units to create a "virtual" switcher of up to 57 inputs.
  • Audio Switching Modes - Audio-Follows-Video (AFV) and audio breakaway switching.
  • Flexible Control Options - Front panel, remote step-in panels, RS-232 (K-Router Windows-based software is included), RS-485, Ethernet via a built-in Web server, contact closure & IR remote (included).
  • Worldwide Power Supply - 100-240V AC.
Product Use Diagram

Product Specifications

Inputs8 UXGA on 15-pin HD (F) connectors; 8 unbalanced stereo audio on 3.5mm mini jacks
Outputs1 UXGA on 15-pin HD connector; 1 twisted pair on RJ-45 connector; 1 unbalanced stereo audio on a 3.5mm mini jack; 1 balanced audio stereo on a 5-pin detachable terminal block
Max Output LevelVideo: 2Vpp; Audio: stereo unbalanced 7.8Vpp, stereo balanced 15.6Vpp differential
BandwidthVideo: out 440MHz, CAT 5 (Rec Out) 150MHz; Audio: stereo unbalanced 20kHz, stereo balanced 20kHz
Video ResolutionVGA to WUXGA
Diff. GainXGA: 0.04%
Diff. PhaseUXGA: 0.07Deg
K-FactorUXGA: 0.2%
S/N RatioVideo: UXGA 68.3dB @5MHz; Audio: stereo unbalanced 74dB @1KHz, stereo balanced 74.4dB @1kHz; CAT 5 (Rec Out) 69.8dB
CrosstalkVideo: UXGA -52dB @5MHz; Audio: local stereo unbalanced -73dB @1KHz, local stereo balanced <72dB @1kHz
Volume ControlAudio: Stereo unbalanced -65.4 to 25.8dB; Stereo balanced -59.4 to 31.8dB
CouplingVideo: UXGA-DC, TP Out-DC; Audio: stereo unbalanced-In AC, Out DC, stereo balanced-In AC, Out DC
Audio THD + NoiseStereo balanced/unbalanced 0.08%
Audio 2nd HarmonicStereo balanced/unbalanced 0.001%
Power Consuption100-240V AC 50/60Hz; 29VA
Operating Temperature32° to 104°F (0° to +40°C)
Storage Temperature-40° to 158°F (-40° to +70°C)
Humidity10 - 90% Non-condensing
Product Dimensions W, D, H19" x 7.20" x 1U (43.6cm x 18.30cm 4.36cm)
Product Weight4.1 lbs. (1.9 kg)