Description
Power and synchronize up to 120 analog or 36 digital Valcom clocks from a single unit using the V-VCU, a 6-amp 2-wire clock driver with a built-in current-limited power supply and digital protocol mixer that accepts time data from the V-GPS, V-DCPI, or V-WMC and distributes correction signals over the 2-wire clock network.
The Telecom Spot Expert Review
The V-VCU is the distribution amplifier and power supply for Valcom's 2-wire synchronized clock network — it accepts a time reference signal from a GPS receiver (V-GPS), a protocol interface (V-DCPI), or a wireless master clock (V-WMC) and drives correction data and DC power to every clock on the 2-wire loop simultaneously. A single V-VCU supports up to 120 analog clocks, 36 2.5-inch digital clocks, or 30 4.0-inch digital clocks — the capacity that covers most single-building installations without requiring additional units. The 6-amp current-limited power supply prevents overcurrent damage to the clock network during faults or wiring events. The built-in digital protocol mixer handles the data formatting for the 2-wire correction signal without requiring a separate interface device when paired with a compatible time source. Multiple V-VCU units can be combined in a single system for large campus installations that exceed a single unit's capacity. The interface connection to the V-GPS, V-DCPI, or V-WMC is a simple "data out" to "data in" connection between units.
Key Features
- 6-amp 2-wire clock driver powering and synchronizing up to 120 analog or 36 digital Valcom clocks
- Built-in current-limited power supply and digital protocol mixer
- Accepts time data from V-GPS, V-DCPI, or V-WMC — simple data-out to data-in connection
- Multiple units can be combined for large campus clock networks
Technical Specifications
| Model | V-VCU |
|---|---|
| Type | 6A 2-Wire Clock Driver |
| Output Current | 6A (current-limited) |
| Clock Capacity | Up to 120 analog; 36 × 2.5 in. digital; or 30 × 4.0 in. digital |
| Time Source Input | V-GPS, V-DCPI, or V-WMC ("data out" to "data in") |
| Expandable | Yes — multiple V-VCU units combinable |


