Description
Video Switch VSM-220 Stackable Camera Duplex Multiplexer RS-232 Video Out
The Video Switch VSM-220 is a stackable camera duplex multiplexer designed for video switching and signal routing in multi-camera installations. It supports duplex multiplexing, allowing multiple camera signals to be switched and routed through a compact, stackable chassis. The unit is labeled internally as a Modified VSM 220 B Board (ECO-1483, R8/VH30), indicating a revised hardware configuration.
Specifications & What's Included
- Model: VSM-220 (Modified VSM 220 B Board)
- Hardware Revision: B Board, ECO-1483, R8/VH30
- Type: Stackable Camera Duplex Multiplexer
- Front Panel Connectors: DB-9 Power, DB-9 RS-232, DB-9 Sync, DB-9 HV Enable
- Front Panel Output: BNC Video Out
- Side Panel: Multi-pin circular connector (visible on right-side bracket)
- Front Panel Indicators: CPU, RXD, RTS, Power LEDs
- Chassis: Aluminum enclosure, stackable form factor with rack-mount bracket on one side
- Unit only — no cables or accessories observed
Applications
Camera duplex multiplexers like the VSM-220 are used in video production, broadcast, and security/surveillance environments where multiple camera feeds must be switched, routed, or combined over a shared signal path. Stackable designs allow systems to be scaled by adding units together, making them suited for larger multi-camera installations. The RS-232 interface enables serial control from a host computer or controller, while the Sync input supports timing synchronization across a multi-unit stack. This type of equipment was commonly found in broadcast studios, closed-circuit television (CCTV) systems, and production control rooms from the 1990s onward, and continues to appear in legacy video infrastructure maintenance and specialized video routing applications.
This Video Switch VSM-220 Stackable Camera Duplex Multiplexer has been inspected and is in good used condition. It was pulled from a working environment where it was actively in use and functional. The aluminum chassis shows light surface wear consistent with normal use. The front panel connectors — including the DB-9 RS-232 and Sync ports, HV Enable port, and BNC Video Out — appear clean and undamaged. The chassis label confirms this is a Modified VSM 220 B Board (ECO-1483, R8/VH30). Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Unbranded |
Model: |
VSM-220 |
MPN: |
VSM-220 |
Secondary Model: |
VSM 220 B Board |
Type: |
Stackable Camera Duplex Multiplexer |
SKU: |
29781 |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Unit only; no cables or accessories observed in photos. |
Form Factor: |
Desktop / Rack-Mountable Chassis |
Interface Type: |
RS-232, Sync, HV Enable, Video Out |
Number of Ports: |
RS-232 x2, Sync x1, HV Enable x1, Video Out x1, Multi-pin connector x1 |
Connector Type: |
DB-9 (RS-232/Sync/HV Enable), BNC (Video Out), Multi-pin circular |
Hardware Revision: |
B Board, ECO-1483, R8/VH30 |
Compatible With: |
VSM-220 Series stackable camera multiplexer systems |
Application: |
Camera video switching and duplex multiplexing |
Condition Notes: |
Video Switch VSM-220 Camera Duplex Multiplexer. Inspected, in good used condition. Pulled from a working environment where it was in active use and functional. Light surface wear on chassis. Connectors appear clean. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
