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SCP-PCS718-010-06H
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.
The conditions in
The configuration used for computing the shelf current and heat dissipation includes one PAU or PMU.
Table 19.
Service
4 POTS
6 POTS
3 POTS, 1 ISDN
2 ISDN
1 POTS, 1 ISDN
3 UVG, 1DDS
6 UVG
4 EBS
2 PLUS 2
(*) Indicates the current when all lines are off hook with all DSL lines at maximum length with –48 Vdc battery.
(†) Indicates the recommended fuse for –42.5 Vdc battery and 15% fuse margin.
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 PCS-718 COT shelf is intended for installation on or above concrete or other noncombustible surfaces
only.
PCS-718 List 1
Table 19
assume that the POTS lines at all customer sites are off hook.
PCS-718 Shelf Power and Heat Dissipation for Universal Systems
Split Powering
CO Input
Models
Current
*
PLL-720
1.95 A
PRL-770
PLL-721
2.40 A
PRL-771
PLL-722
1.86 A
PRL-772
PLL-723
1.50 A
PRL-773
PLL-724
1.62 A
PRL-774
PLL-726
1.98 A
PRL-776
PLL-729
2.60 A
PRL-779
PLL-733
1.59 A
PRL-783
PLL-734
2.24 A
PRL-784
January 6, 2003
.
Single or Redundant
Powering
Shelf
CO Input
Fuse
†
Current
(a)
3.00 A
3.85 A
3.00 A
4.75 A
3.00 A
3.68 A
2.00 A
2.95 A
2.00 A
3.19 A
3.00 A
3.90 A
5.00 A
5.16 A
2.00 A
3.12 A
3.00 A
4.42 A
Mounting
CO Heat
Shelf
Dissipation
Fuse
(b)
7.50 A
100 W
7.50 A
122 W
5.00 A
91 W
5.00 A
64 W
5.00 A
73 W
7.50 A
84 W
7.50 A
115 W
5.00 A
90 W
7.50 A
116 W
25
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