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Section 300-Installation
Chapter 4. Trunks and Lines
DBS-2.3/9.2-300
DBS Manual - Revised April 2000
4-9
Ground Start and DID Trunks
Guidelines
• The following procedure covers ground-start (VB-43531) and DID (VB-
43541) installation using the main trunk connector. For instructions on
using the expansion trunk connector, see “Trunk and Line Expansion” on
page 4-44.
• For pinouts and color codes for the main trunk connector, see Table 4-2 on
page 4-5.
• Each circuit on the ground-start trunk card can be used as either a loop-
start or ground-start trunk. By default, all circuits on the ground-start trunk
are assigned as loop start.
• The ground-start trunk card requires CPC-B Version 1.0 or higher.
• The DID card requires CPC-B (Version 2.0 or higher) and SCC-B
(Version 1.2 or higher).
• Both ground start and DID trunks require an external -48V floating output
power supply. The following table shows -48V power consumption for
one- and two-cabinet systems.
Table 4-4. -48V current consumption for ground-start and DID trunks
• The following -48V floating output power supplies have been tested with
DBS ground-start and DID trunks.
Table 4-5. -48V power supplies tested with the DBS
• The following “Installation” section includes details on installing the -48V
power supply.
System Size
Current Consumption
(Output voltage = 48
±
4 V
Ripple voltage =
±500
mVp-p)
One-cabinet system
1 Amp
Two-cabinet system
2 Amps
Manufacturer
Model Number
Rating
Valcom
VP-2048B
2 Amps
Tellabs
81-8002
2 Amps
Содержание CPC-EX
Страница 12: ...About This Manual Section 300 Installation xii DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 18: ...Chapter 1 Requirements Section 300 Installation 1 6 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 20: ...2 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 28: ...Chapter 2 System Overview Section 300 Installation 2 10 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 30: ...3 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 48: ...Chapter 3 Cabinet Installation Section 300 Installation 3 20 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 50: ...4 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 94: ......
Страница 96: ...5 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 132: ...6 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 144: ...7 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 160: ...Chapter 7 Specifications Section 300 Installation 7 18 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 204: ...Index Section 300 Installation Index 8 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...