ADC PG-PLUS PCS-718, Техническая практика

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SCP-PCS718-010-06H Mounting
PCS-718 List 1 January 6, 2003 25
Powering the Universal Systems
Table 19 summarizes the shelf powering requirements and heat dissipation for the PG-Flex<italics 10>PG Plus
COT shelf when it is fully populated with services, a battery voltage of –48.0 V, and with all CO to RT distances
at their maximum DSL reach. The table provides the average current drawn from a fully populated shelf under the
these conditions.
.
M
OUNTING
Attach the COT shelf to the selected position in the 19-inch or 23-inch equipment frame using the supplied
hardware. For 23-inch frame installations, reverse the mounting brackets on the shelf.
The conditions in Table 19 assume that the POTS lines at all customer sites are off hook.
The configuration used for computing the shelf current and heat dissipation includes one PAU or PMU.
Table 19. PCS-718 Shelf Power and Heat Dissipation for Universal Systems
Service Models
Split Powering Single or Redundant
Powering
CO Heat
Dissipation
CO Input
Current
*
(*) Indicates the current when all lines are off hook with all DSL lines at maximum length with –48 Vdc battery.
Shelf
Fuse
†
(†) Indicates the recommended fuse for –42.5 Vdc battery and 15% fuse margin.
CO Input
Current
(a)
Shelf
Fuse
(b)
4 POTS PLL-720
PRL-770 1.95 A 3.00 A 3.85 A 7.50 A 100 W
6 POTS PLL-721
PRL-771 2.40 A 3.00 A 4.75 A 7.50 A 122 W
3 POTS, 1 ISDN PLL-722
PRL-772 1.86 A 3.00 A 3.68 A 5.00 A 91 W
2 ISDN PLL-723
PRL-773 1.50 A 2.00 A 2.95 A 5.00 A 64 W
1 POTS, 1 ISDN PLL-724
PRL-774 1.62 A 2.00 A 3.19 A 5.00 A 73 W
3 UVG, 1DDS PLL-726
PRL-776 1.98 A 3.00 A 3.90 A 7.50 A 84 W
6 UVG PLL-729
PRL-779 2.60 A 5.00 A 5.16 A 7.50 A 115 W
4 EBS PLL-733
PRL-783 1.59 A 2.00 A 3.12 A 5.00 A 90 W
2 PLUS 2 PLL-734
PRL-784 2.24 A 3.00 A 4.42 A 7.50 A 116 W
The PCS-718 COT shelf is intended for installation on or above concrete or other noncombustible surfaces
only.