NEC SL2100 Expansion Cards

Provides either the first initial 3 ports for 3 incoming lines or 3 expansion ports for 3 incoming lines to an existing NEC SL2100 Phone system. NEC...

Provides interface for 8 digital station ports plus 2 analog station ports to an existing NEC SL2100 phone system. Allows the addition of a 3 port CO...

Used to expand an existing system to a multi chassis system. Expansion chassis sold separately

Used to install a second CO card with out a station card