The Protel ECS II Interface allows connectivity between the 310 or 7000 circuit board and the Electronic Coin Scanner II. - Compatible with all Protel Model 310 or 7000 Circuit Boards. - Ensures validation of U.S. and/or Canadian $.5, $.10, & $.25 coins when connected with the Protel Electronic Coin Scanner II. - Powered by Protel Model 310 or 7000 circuit board. - This part is also known as the ECSII Option Board or ECSII Module.