363-206-295
Power
4-2
Issue 1
December 1997
Power Description
4
Two independent
−
48 volt office power feeders (A and B) enter the shelf through
backplane connectors and are fused and filtered at the user panel, then
distributed to the circuit packs. Power conversion is performed through modular
power converters located on the circuit packs. In each circuit pack, the two
feeders are diode ORed, fused, filtered, and regulated by the board-mounted
power modules. This provides the required redundancy in case of the loss of one
feeder or one fuse. Figure 4-1 shows which circuit packs have converters
mounted on the printed wiring boards. Power modules are located on the OLIU,
3DS3, 3STS1E, TSI, TG, SYSCTL, and OHCTL circuit packs.
Figure 4-1.
DDM-2000 OC-12 Multiplexer Power Architecture
T
T
-2.3V
TSI
S
I
1
S
I
to
to
+15V
U
O
L
I
2(P)
1
-2.3V
to
+15V
to
U
O
L
I
1
2(P)
Main A
Main B
2
A
P
P
B
L
K
1
7
7
C
A
P
P
B
L
K
1
7
7
C
-48V
+5V
-48V
to
+5V
-48V
to
+5V
to
TG
TG
-48V
to
+5V
-48V
to
+5V
-48V
to
+5V
-48V
to
+5V
-48V
to
+5V
-48V
to
+5V
-5.2V
-48V
to
+5V
to
-48V
to
+5V
-48V
-48V
-48V
to
-5.2V
-48V
-5.2V
1
2
Timing
1
1
1
3
3
3
3
3
D
S
3
D
S
3
D
S
3
D
S
1
-48V
to
+5V
-48V
to
+5V
to
-48V
U
U
O
L
I
O
L
I
3
D
S
3
3
D
S
3
2(P)
2(P)
2(P)
2(P)
-5.2V
-48V
+5V
-48V
to
-48V -48V
to
Function Units
-48V
to
+5V
S
Y
S
C
T
L
-48V
to
+5V
O
H
C
T
L
-48V
U
S
E
R
P
A
N
E
L
A
Fuse
-48V
Fuse
B
SYSCTL AUXCTL
Содержание DDM-2000 OC-12
Страница 1: ...363 206 295 Issue 1 December 1997 DDM 2000 OC 12 Multiplexer Release 7 0 User Service Manual Volume I ...
Страница 37: ...Tables xxxviii Issue 1 December 1997 A A SONET Overview A 1 SONET Payloads A 18 A 2 SONET Transport Rates A 19 ...
Страница 506: ...INS PROG 8 of 8 Page INS PROG COMMANDS RELATED rtrv eqpt rtrv ne OC 12 DDM 2000 1997 December 1 Issue 11 89 ...
Страница 528: ...RTRV ATTR ALM 2 of 2 Page RTRV ATTR ALM COMMANDS RELATED set attr alm OC 12 DDM 2000 1997 December 1 Issue 11 111 ...
Страница 565: ...RTRV OC3 3 of 3 Page RTRV OC3 COMMANDS RELATED rtrv sync 11 148 1997 December 1 Issue OC 12 DDM 2000 ...
Страница 664: ...SET FEAT 3 of 3 Page SET FEAT COMMANDS RELATED rtrv feat OC 12 DDM 2000 1997 December 1 Issue 11 247 ...
Страница 766: ... Ctl T TOGGLE 2 of 2 Page Ctl T TOGGLE COMMANDS RELATED logout rlgn OC 12 DDM 2000 1997 December 1 Issue 11 349 ...
Страница 847: ...Multiplexer OC 12 DDM 2000 7 Release TARP TOP Manual User Service II Volume 363 206 295 1 Issue 1997 December ...
Страница 867: ...363 206 295 TOP Maintenance and Operation BLANK LEFT INTENTIONALLY PAGE THIS 12 1997 December 1 Issue ...
Страница 1145: ...Order Circuit 363 206 295 NTP 029 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1146: ...Order Circuit 363 206 295 NTP 030 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1182: ...Turnup System 363 206 295 NTP 033 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1243: ...Clearing Trouble 363 206 295 TAP 107 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1393: ...363 206 295 DLP 513 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1394: ...363 206 295 DLP 514 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1456: ...363 206 295 DLP 523 7 of 7 Page 1997 December 1 Issue OC 12 via Access Broadcast Video for Cross connections of Example 4 Figure ...
Страница 1465: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 2 Page Schematic Ring Virtual ATM Sample 1 Figure ...
Страница 1469: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 6 Page Ring Virtual ATM OC 12 DDM 2000 for Cross connections of Example 4 Figure ...
Страница 1565: ...363 206 295 DLP 543 6 of 5 Page 1997 December 1 Issue Network Broadcast Video of Test Transmission 2 Figure ...
Страница 1566: ...DLP 543 363 206 295 1997 December 1 Issue 6 of 6 Page Network Ring Virtual ATM of Test Transmission 3 Figure ...