The QCL 170EU, 170EL, 171EU, and 171EU have been renamed to make the ordering process more fluid for the QCL100 product line, see below:
QCL192 = Electronically Locked Non-IC (fail safe) --- formally known as QCL170EL
QCL193 = Electronically Locked SFIC (fail safe) --- formally known as QCL171EL
QCL194 = Electronically Unlocked Non-IC (fail secure) --- formally known as QCL170EU
QCL195 = Electronically Unlocked SFIC (fail secure) --- formally known as QCL171EU
The terms QCL170EL, QCL171EL, QCL170EU, and QCL171EU are used in conjunction with QCL192, QCL193, QCL194, and QCL195, respectively, in all documentation.
QCL192, QCL193, QCL194, QCL195
You can find templates and instructions for this product here: