Carrier Grade GroomerII – Installation Guide
1.1.8 Connecting DC power
Each DC power module has a 2 pin socket as shown below (D).
The mating plug is polarised, and secured by two screws to prevent accidental
disconnection.
Each DC power cable has two terminals to wire to the DC supply. The positive
connection is carried on the red wire and the negative on the black wire. The earth
connection is made via the green/yellow wire.
CAUTION
Observe the correct polarity for DC power connections.
Both modules must be connected to provide power module redundancy.
1.1.9 Grounding a DC powered system
The DC chassis provides two #10-32 threaded studs for chassis enclosure grounding.
Each DC power cord includes a green/yellow earth wire, which should be connected
prior to switching the unit on.
1.1.10 Electrostatic discharge precautions
During installation and maintenance, handle all connectors by their plastic casing or
connector shield. Do not touch metal parts within any socket as you plug connectors
in.
Before plugging in any interface cables, ground yourself to dissipate any static charge
you may be carrying. To do this, ensure the power cords are correctly installed then
briefly touch the exposed metal on the system casing.
These precautions will minimise the chance of any ESD damage to the product.
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