Zhone Technologies IMACS-200 manual Type I E&M Signaling

Type I signalling is achieved by connecting a ground on the SG lead. Type I E&M signalling is then achieved by operating the E and M leads to achieve off-hook and on-hook signals.Figure 7-1illustrates a typical Type I interface.

Figure 7-1.Type I E&M Signaling

Note: For Type I signaling, there should be no connection on the SB lead

7-2 E&M Ports