Nortel Networks Option 11C 사용자 설명서
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NT8D15 E&M Trunk Card
Reference List
The following are the references in this section:
•
Features and Services (553-3001-306)
•
Administration (553-3001-311)
General information
This chapter outlines the characteristics, application and operation of the
NT8D15 E&M Trunk Card. The information is intended to be used as a guide
when connecting customer-provided apparatus to the trunk circuit.
NT8D15 E&M Trunk Card. The information is intended to be used as a guide
when connecting customer-provided apparatus to the trunk circuit.
NT8D15 E&M Trunk Card has four identical trunk circuits. Each circuit can
be configured independently by software control. The trunk circuits on the
card support the following types of trunks:
be configured independently by software control. The trunk circuits on the
card support the following types of trunks:
•
two-wire E & M type I signaling trunks (non-ESN)
•
two-wire dial repeating trunks
•
two or four wire tie trunks
•
four-wire E & M type I and II signaling type II trunks
(ESN and Non-ESN applications)
(ESN and Non-ESN applications)
•
Paging (PAG)
Type I signaling (as on the two-wire E & M trunk) utilizes two signaling
wires plus ground. Type II signaling utilizes tow pairs of signaling wires and
is used by most electronic switching systems.
wires plus ground. Type II signaling utilizes tow pairs of signaling wires and
is used by most electronic switching systems.
Table shows a matrix of the trunk types and signaling supported by the
NT8D15 E&M Trunk Card.
NT8D15 E&M Trunk Card.
Table 118
Supported trunk and signaling matrix
Supported trunk and signaling matrix
Signaling
RLM
RLR
ATV
TIE
PAG
CSA
CAA
CAA
CAM
2-wire E & M
yes
yes
yes
yes
yes
4-wire E & M
yes
yes
yes
yes
yes