363-206-295
Technical Specifications
10-36
Issue 1
December 1997
Power Dissipation
1
0
The power dissipation figures in Table 10-20 represent fully loaded shelves.
■
DDM-2000 OC-12 shelf accommodates two
−
48 V power feeders ("A" and
"B" office power feeders).
■
Table 10-20 lists the List 1 and List 2 power drain.
Table 10-20. Power Dissipation and Current Drains
Configuration
Power
Dissipation
(Watts)
DC Current Drains
(Amps)
L1 (
−
48V)
L2 (
−
40V)
Pt-Pt DS3 Terminal
∗
(12 DS3)
177
3.7
4.4
21G/21G-U Optical Hub
∗
(4 OC-3)
201
4.2
5.0
21D/21D-U Optical Hub
∗
(4 OC-3)
193
4.0
4.8
OC-12 Regenerator
(4 REGENR circuit packs)
60
1.3
1.5
Pt-Pt EC-1 Terminal
∗
(12 EC-1)
177
3.7
4.4
Ring Shelf
∗
(12 EC-1)
187
3.9
4.7
Ring Shelf
∗
(12 DS3)
187
3.9
4.7
Ring Shelf
∗
E/W 21G/21G-U OLIU
(4 OC-3)
211
4.4
5.3
DDM-2000 Fan Shelf
53
1.1
1.3
*
These configurations require the DDM-2000 Fan Shelf. Fan power
dissipation is listed separately.
