Certified Invoicing System can be any model of Electronic Cash Register which fulfils requirements stipulated in CIS specification and has obtain certificate from RRA. Such certified ECR is not able to produce any receipt unless connected to SDC.

Certified Invoicing System can be any invoicing software which fulfils requirements stipulated in CIS specification.Such CIS, installed on a PC must be connected to SDC as it will not allow production of receipt without communication with SDC.

POS software certified as CIS may be installed on multiple sales desk connected to single SDC.Such installation depends on SDC manufacturer's specification and capacity of its memory. Users are always advised to consult with supplier before procuring system which allows this configuration.

Certified Invoicing System may be integrated with SDC, if manufacturer of has certified both CIS and SDC to function in the single cabinet.

Certified Invoicing System may be part of a large network of terminals connected to a single SDC.Users are advised to consult with supplier of SDC about memory or other network restrictions which may not support this configuration.