Carrier Access SNMP Network Router User Manual


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E&M Signaling Conventions
9/24/01 11-5
Figure 11-4: E&M Signaling Type 2
Figure 11-5E&M Signaling Type 4
M-Lead
Detector
-48V
E-Lead
Detector
-48V
M
E
E&M Type 2
SB
SG
Normal Mode
(Terminating)
(Channel Equipment)
Tandem Mode
(Originating)
(Switching Equipment)
M-Lead
Detector
-48V
E-Lead
Detector
-48V
M
E
E&M Type 4
SB
SG
Normal Mode
(Terminating)
(Channel Equipment)
Tandem Mode
(Originating)
(Switching Equipment)
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