Cisco ONS 15454 Unpacking And Installing page 23

Fuse and Alarm Panel Wiring
The FAP included in the four-shelf and zero-shelf bay assemblies provides four sets of two 30A fused
drops, for powering the redundant A and B inputs of four ONS 15454 nodes. The FAP has integrated low
voltage disconnect (LVD) circuitry to provide a shutdown of the output power due to a drop in input
voltage from the network power source.
Necessary overload protection is provided with eight user pluggable TPA fuses, separated into two sets
of four fuses, to allow for diverse routing of two power sources to each shelf assembly. Also provided is
an LED alarm display for visual fault identification, with the capability for external alarm closures for
remote fault signaling.
The FAP has the capability to report six alarms to a network operations center (NOC). Equipped with an
alarm interface card, the ONS 15454 has the capability to report up to 32 environmental alarms,
depending on which alarm interface card is installed. Only one shelf (with an AIC/AIC-I card) is needed
to monitor alarming for a loss of power and a blown fuse condition. The alarms are reported to the NOC
through the connected LAN wire also tied to the same shelf.
views of the FAP including front, rear, Side A, Side B and alarming. Refer to the latest release of the
Cisco ONS 15454-FAP-LVD Operations Guide for more information on the fuse and alarm panel.
Figure 20 FAP (Front View)
W A R
P O W
E R
A 1
LV D
A L A R
M
78-15720-04
N IN G
! D O
N O T
D IS C
R E M
O N N
O V E
E C T
M O D
IN G
P W E U L E
R O N B E F O
R E A R E
R
5 0 A
M P M
W A R
A X P
N IN G
E R F
1 ! D O
U S E
A 1 N O T
D IS C
O N N R E M
2 P O W
O V E
E C T
E R
IN G
1
A 2
P O W
2
E R
A 2
5 0 A
M P M
A X P
B 1 1
B 1
2
LV D
A L A R
M
F U S
E
LV D
A L A R A L A R
M
M
Unpacking and Installing the Cisco ONS 15454 Four-Shelf and Zero-Shelf Bay Assembly
M O D
P W E U L E
R O N B E F O
R E A R E
R
E R F
U S E
P O W
E R
1
B 2
2
1 5 4 5
4 - F A
B 2
LV D
A L A R
M
F U S
E
A L A R
M
Fuse and Alarm Panel Wiring
Figure 20 through Figure 23
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