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DBS-2.3/9.2-300 DBS Manual - Revised April 2000 4-1
Chapter 4. Trunks and Lines
This chapter describes trunk and line installation. Some peripheral equipment
also requires trunk and/or line interfaces (for example, door phones or power
failure units). See Chapter 5 for instructions on connecting peripheral
equipment through trunks or lines.
This chapter covers the following topics::
Topic Page
Trunks 4-3
Loop-Start Trunks 4-7
Ground Start and DID Trunks 4-9
T1 Interface 4-11
Lines 4-31
Analog Extensions 4-37
Digital Extensions 4-41
DSS/72 4-41
EM/24 4-43
Trunk and Line Expansion 4-44