The DS3100DK is an easy-to-use demo and evaluation kit for the DS3100 Stratum 3/3E timing card IC. A surface-mounted DS3100 and careful layout provide maximum signal integrity. An on-board Maxim 8051-compatible microcontroller and included software give point-and-click access to configuration and status registers from a personal computer. LEDs on the board indicate interrupt, power-supply function, and GPIO status. The board provides BNC and bantam connectors for the composite clock and BITS interfaces. Single-ended and LVDS clocks are accessed via SMB connectors. All LEDs and connectors are clearly labeled with silkscreening to identify associated signals.