CVM Fields on PSCS

There are four options for EMV Cardholder Verification in PSCS. Here’s what you need to know about them.

NAK Error from PIN Pad

NAK errors occur between the client (dsiEMVUS) and the PIN pad. A NAK error means the PIN pad negatively acknowledged a command from dsiEMVUS or dsiEMVUS did not understand the response returned from the PIN pad.

Installing the Ingenico Driver

Prior to connecting an Ingenico device, the Ingenico driver will have to be installed on your PC. The driver is available for download here and is located under “Device Drivers” (Ingenico Telium 2 Line).