The V-DCPI Digital Clock Protocol Interface allows certain Valcom intercom systems to provide time correction data to Valcom wired and wireless clocks. For wired clocks, the V-DCPI is a simple interface between the clock cards of the Valcom MultiPath, VC-24 or V-2924A systems and the V-VCU 6 Amp 2-Wire Clock Driver. The V-DCPI converts the output of the V-SER, VC-2927 or V-2927 clock cards to a digital format suitable for connection to the data input of the V-VCU. This interface allows the Valcom MultiPath, VC-24 or V-2924A systems to provide clock correction information to Valcom wired clocks configured for the Valcom 2-wire correction protocol. For wireless clocks, the V-DCPI data output may be used to provide time data to a V-WMC Wireless Master Clock or V-WMCR Wireless Master Clock Repeater thus allowing the Valcom MultiPath, VC-24 or V-2924A systems to provide clock correction information to Valcom Wireless clocks.