Iris Packet Broker (IPB) 7.13.2
21
Hardware Installation and Maintenance Guide
3
IPB Installation
Rev. 001-140228
F
USE
P
ANEL
P
OWER
C
ABLING
(DC U
NITS
O
NLY
)
After the power cabling is connected to the IPB, connect the equipment power cabling to the fuse panel.
This applies to DC units only. The IPB connects to the fuse panel that contains two separate circuits: A
and B. The maximum output loading of the Fuse Panel is 100A per side (A and B). In each circuit, current
flows from the input through the fuse bus. When you install a fuse in a fuse holder, it completes the circuit
to the output connector. When a fuse fails, it sends a fail signal to the Fuse Fail Alarm circuit.
Please note the following when wiring the IPB to the fuse panel:
Use input wire size appropriate for the total output loading of the fuse panel. For 100A input use
at least #2 AWG wire.
An input branch circuit protector (fuse or circuit breaker) must be provided and rated to meet
local codes and installation requirements. For a 100A input, use a 125A protector or as directed
by local codes.
A switch or means to disconnect from the input must be provided in the building installation
which is easily accessible and identified as the disconnect device.
Perform the following steps to connect the IPBs to the fuse panel.
Step
Action
1.
Refer to
and the following bullets and connect each power feed for the IPB to
the Fuse Panel. Refer to the
Terminal and Wiring Recommendations
for additional wiring
and lug recommendations.
Connect all cabling on the IPB
before
connecting the cables to the Fuse Panel to minimize risk of electrical
hazard.
Do not
connect more than six components to a single fuse panel. Make sure not to exceed the
maximum current per each side of the fuse panel.
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