This Studer card, with part number A949.0420, is a great addition for your D21m and D23m modular I/O system.

Using this Studer 8 - channel analog line output card is easy. First, make sure your D21m or D23m modular I/O system is turned off. Then, carefully insert the card into the appropriate slot. Once it's in, turn on the system. When using, avoid exposing the card to extreme temperatures or moisture. For maintenance, every few months, gently blow away any dust from the card with compressed air. If you encounter any issues, contact Studer's customer support.