Ground Start And Did Trunks; Table 4-4. -48V Current Consumption For Ground-Start And Did Trunks; Table 4-5. -48V Power Supplies Tested With The Dbs - Panasonic CPC-EX Installation Manual

Digital business system section 300 (applies to cpc-aii/b version 9.2 and cpc-ex version 2.3)
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Section 300-Installation

Ground Start and DID Trunks

Guidelines
• The following procedure covers ground-start (VB-43531) and DID (VB-
• For pinouts and color codes for the main trunk connector, see Table 4-2 on
• Each circuit on the ground-start trunk card can be used as either a loop-
• 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
• Both ground start and DID trunks require an external -48V floating output

Table 4-4. -48V current consumption for ground-start and DID trunks

• The following -48V floating output power supplies have been tested with
Table 4-5.
-48V power supplies tested with the DBS
• The following "Installation" section includes details on installing the -48V
DBS-2.3/9.2-300
43541) installation using the main trunk connector. For instructions on
using the expansion trunk connector, see "Trunk and Line Expansion" on
page 4-44.
page 4-5.
start or ground-start trunk. By default, all circuits on the ground-start trunk
are assigned as loop start.
(Version 1.2 or higher).
power supply. The following table shows -48V power consumption for
one- and two-cabinet systems.
System Size
One-cabinet system
Two-cabinet system
DBS ground-start and DID trunks.
Manufacturer
Valcom
Tellabs
power supply.
DBS Manual - Revised April 2000
Current Consumption
(Output voltage = 48
Ripple voltage =
1 Amp
2 Amps
Model Number
VP-2048B
81-8002
Chapter 4. Trunks and Lines
4 V
mVp-p)
Rating
2 Amps
2 Amps
4-9

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