60
7 Subrack Power Cable Connections
1 x T64 S 4 x 6800 Subracks
b
PDU
T64
6800
6800
Subrack 2
a3(+)
b3(+)
b3(-)
a3(-)
Subrack 1
Power cable connections are the same on
the front and rear sides. This page
describes only the front-side power cable
connections.
NOTE
Subrack 1
Subrack 2
Subrack 3
a1
(-)
a2
(-)
a3
(-)
a4
(-)
b1
(-)
b2
(-)
b3
(-)
b4
(-)
b1
(+)
b3
(+)
b4
(+)
b2
(+)
a1
(+)
a3
(+)
a4
(+)
a2
(+)
DPD63-8-8 PDU
a1
(+)
a1
(-)
a2
(+)
a2
(-)
b1
(+)
b1
(-)
b2
(+)
b2
(-)
DC PDU
Subrack
No.
Circuit
Breaker
No.
Circuit
Breaker
Current
SW1A,
SW2A,
SW1B,
SW2B
TN51PDU: 60
A
DPD63-8-8
PDU: 63 A
1
SW3A,
SW3B
TN51PDU: 30
A
DPD63-8-8
PDU: 32 A
2
SW4A,
SW4B
TN51PDU: 30
A
DPD63-8-8
PDU: 32 A
3
Mapping between Subracks and
DC PDUs
•
For the T64 Enhanced subrack, the PIU boards installed back-to-back are in mutual backup.
•
For the T64 General, T32, and T16 subracks, PIU boards on the left and right sides are in
mutual backup.
•
For the universal platform subracks, the PIU boards are installed on the right side and the
upper and lower PIU boards are in mutual backup.
•
For details of the backup relationships between PIU boards, see the "Power Redundancy"
section.
CAUTION
Subrack 3
a4(+)
a4(-)
b4(+)
b4(-)
TN51PDU
a1
(-)
a2
(-)
a3
(-)
a4
(-)
a1
(+)
a3
(+)
a4
(+)
a2
(+)
b1
(-)
b2
(-)
b3
(-)
b4
(-)
b1
(+)
b3
(+)
b4
(+)
b2
(+)
