GPIO-16 provides 16 GPI (General Purpose Inputs) and 16 GPO (General Purpose Outputs). The GPIs can be set up as remotely controlled keypanel keys to activate intercom ports, party lines, GPOs, etc...

The DSI 2008 Dual Digital Hybrid interfaces two (2), 2-wire intercom lines to two(2), 4-wire intercom lines. Unlike earlier analog hybrids, the DSI 2008 features advanced digital signal processing to...