Zhone IMACS-200 사용자 설명서
7-4
E&M Ports
Model No.
Running Head
Type IV E&M is arranged exactly like Type II E&M, except that a mechanical relay is used
for the M relay as in Type I E&M, see Figure 7-3.
for the M relay as in Type I E&M, see Figure 7-3.
Figure 7-3.Type IV E&M Signaling