OSD NETWORKS OSD2254EP User Manual

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OSD2254EP Operator Manual
2.2.3 LOCATION
As with any electrical device, the OSD2254EP should be placed where the switch will not be
subjected to extreme temperatures, humidity, or electromagnetic interference. Specifically,
the site selected should meet the following requirements:
• The ambient temperature should be between -40°C to 75°C.
• The relative humidity should be less than 95 percent, non-condensing.
• Surrounding electrical devices should not exceed the electromagnetic field (RFC)
standards.
• Make sure that the switch receives adequate ventilation. Do not block the ventilation
holes on any side of the switch.
Note: Without proper cooling and control (lowering) of ambient temperature, the components
within the OSD2254EP can be subject to increased heat shortening the longevity and
reliability. It is thus good engineering practice to ensure the unit is installed in a well ventilated
area.
2.2.4 POWER SUPPLY CONNECTIONS
The OSD2254EP requires external power to the Redundant DC Terminal Block Power
Connector located at the top of the unit. Always ensure that the power is off before any
installation.
Redundant DC Terminal Block Power Inputs
There are two pairs of power inputs for use with redundant power sources. Only one power
input is required to be connected to run the switch.
Step 1: Connect the DC power to the appropriate power source, connect the plug-able
terminal block on the OSD2254EP switch and then turn power on.
Step 2: Disconnect the power if you want to shut down the switch.
TABLE 2: POWER CONNECTION
External Power Pin
Specification
Power 1 +
46V
DC
to 57V
DC
@ 260VA*
Power 1 0V
Ground – 0V
Power 2 +
46V
DC
to 57V
DC
@ 260VA*
Power 2 0V
Ground – 0V
Earth Ground Connection
*≥52V
DC
recommended for PoE+ or ≥ 55V
DC
for 60W PoE
FIGURE 4: POWER SUPPLY CONNECTIONS

OSD NETWORKS OSD2254EP Specifications

General

Brand	OSD NETWORKS
Model	OSD2254EP
Category	Switch
Language	English