This is a Studer 8-channel analog line in card. Part number: A949.0421. Ideal for D21m and D23m modular I/O systems.

To use this Studer 8-channel analog line in card, simply install it into your D21m or D23m modular I/O system. Make sure your system is powered off before installation. During use, avoid exposing the card to extreme temperatures or humidity. For maintenance, keep the card clean and dust - free. If you notice any issues, check the connections first. If the problem persists, contact Studer support.