Card Control Functions - Nortel Enterprise 1000 Reference Manual
Succession communication server, circuit card
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Also See for Enterprise 1000:
- Description, installation and operation manual (646 pages) ,
- Features and services fundamentals (616 pages) ,
- Fundamentals (492 pages)
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Figure 36
E & M Type I signaling
E&M trunk card
Ð 48V
Ð 48V
Card control functions
Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide
Control functions are provided by a microcontroller, a card LAN, and
signaling and control circuits on the E&M trunk card.
Microcontroller
The E&M trunk card contains a microcontroller that controls the internal
operation of the card. The microcontroller provides the following functions:
•
card-identification
•
self-test
•
control of card operation
•
maintenance diagnostics
NT8D15 E&M Trunk Card
E
M
Page 105 of 236
External signaling circuit
E
M
553-CSE6258
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