At the heart of the IMAGE VIDEO Tally System is the TSI-1000 Tally System Interface. The TSI-1000 collects information from signal routing and processing equipment to operate displays and tallies as directed by its internal configuration information. The TSI-1000 is configured from a Windows PC running the Tally System Console 2 program. Once configured, the TSI-1000 continues to operate the tally system with or without the PC connected. Other TSI-1000 features include:

• All electronics housed in two rack unit frame
• Wide range input power supply removable from front of unit
• Six RS-422 / RS-485 ports
• Four RJ11 remote display ports
• Two high speed coaxial BNC ports
• Two RS-232 ports
• Ethernet port
• One longitudinal time code port
• Optional redundant power supply plugs in to same frame
• Front-mounted tri-color LED's indicate status of TSI-1000 ports and power supplies
• Two or more TSI-1000 units connected together through their Ethernet ports can extend system capacity or make
  independent local tally systems while still sharing remote information.