The ES-248 is a 2 input, 12 output Distribution Amplifier for CS5 & CS6 Time Codes. The unit automatically switches from Input A to Input B if an error is detected on Input A. An auto-detect system determines which type of code is being input and identifies the code on front panel LED's. The status of each input is also indicated, as well as which input is currently selected. A relay contact closure is output on an error detection/switchover, and an internal Sonalert buzzer sounds (buzzer may be disabled via a front panel switch).