Product Specification Sheet APS646

Rev. 01/2017

VSP333 4-Video Riser Controller (QwikBUS™ Series)

This Specsheet is for a product which is discontinued. Please contact us for alternative products.
Architects' And Engineers' Specifications

The 4-Video Controller unit(s) shall be Alpha Communications® / S.T.R.™ QwikBUS™ model VSP333, or approved equal. The VSP333 shall be built into a rugged high impact Grey ABS plastic case, and shall be powered by the SP333 control unit or SNT333 power supply, depending on system configuration

Low voltage wiring shall be used and positive screw terminal connectors shall be provided for installation wiring. The VSP333 shall be mountable right to the surface of the wall or in a customer-supplied junction box cabinet (model# CEC152 or equivalent).

Contractor shall observe all local and national electrical and building codes.

VSP333 4-Video Controller

The Alpha Communications® / S.T.R.™ VSP333 4-Video Controller is used with the QwikBUS™ series intercom and/or video-intercom systems. The VSP333 is required for the 4-wire QwikBUS™ systems and is an option on the 2-wire QwikBUS™ systems, depending upon system configuration(s).

On 2-wire QwikBUS™ systems, the VSP333 gets its power from the SP333 control unit and on 4-wire QwikBUS™ systems, the VSP333 gets its power from the required SNT333 power supply.

The VSP333 provides the circuitry needed for up to four 4 bus video risers and up to four (4) bus video cameras.

  • Easily Installs Right on Finished Wall Surface or in Optional Junction Box (model# CEC152 or equivalent)
  • Operates on Safe Low-Voltage Class II Wiring
  • Positive Screw Terminal Connectors
Height: 3.75" (96mm)
Width: 4.25" (108mm)
Depth: 2.375" (61mm) from mounting surface
Construction: High impact Grey ABS plastic case
Connections: Positive screw terminal connectors
Mounting: Surface-mounted (usually installed near the System Central Equipment)
Temp. Range: 0°C - 50°C
Alpha Communications
42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: (631) 777-5500 • Fax: (631) 777-5599
TOLL-FREE: (800) 666-4800 • Web: • Email:
Copyright© 1998-2020 Alpha Communications® - All Rights Reserved.
Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.