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Selenio™ Network Processor
User Guide
Installation
Installation
Prior to installing your system, ensure that certain environmental and electrical conditions are met. You
should install it and make some connections.
SNP can be installed in a 19" rack. See
Rack Mounting
(on page 23).
For timing and synchronization purposes, SNP should be connected to a PTP source. See
Configuring a
PTP Network
(on page 25).
Electrical Requirements
The SNP power supplies have a universal input of 100-240VAC at 47 to 63Hz (nominal), max 5.5A each.
There is no voltage selector switch. For power supply specifications, see
Power Consumption
(on page
136).
The SNP has two independent power supplies, load-sharing when both are functional. In SNP-GW-3GX32
frames, these two power supplies are mounted in a common package and serviced as a pair. In SNP-GW-
3GX32-HS-QF frames, each power supply is a separate unit and can be removed individually while the
unit remains in operation (hot-swapping). See
Servicing
(on page 138) for more information.
SNP has two IEC C14 power inlets, one associated with each power supply. Qualified power cords
including UK-style, European-style, and U.S.-style plugs are available for international shipment.
You can power down or reset the unit using the Power Switch (or reset soft-switch) on the front of the
SNP. If a unit has been previously powered down, you can initiate power up of the unit from the front
power switch as well.
When mains power is lost and then later restored, the unit should return to the power state it was in
when mains power was lost – either powered down or running.
Environmental Requirements
SNP units are cooled by forced air drawn in from the front, and exhausted through the rear. There must
be free passage for air flow at the front and back of each unit to allow for adequate ventilation. Take
care to select a dry, well-ventilated location with a minimum of dust.
SNP units are designed for mounting in a standard 19-in. (48-cm) rack using front-mounting ears and
rear support brackets, occupying a 1RU vertical space of 1.75 in. (4.4 cm).
When installing a SNP in a rack, ensure that there is adequate space behind the mounting ears and
clearance for the rear connecting cables. Allow about 10 inches (25 cm) of slack in the rear connecting
cables for frame access and maintenance.
© 2019 Imagine Communications Corp.
Proprietary and Confidential.
May 2019 | Page 22
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