
NPR Installation Manual
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Installation and Operation
1PoE Input / Output (IN / OUT)
Depending on model, there are eight or sixteen RJ45 jack
pairs (top and bottom pair) labeled sequentially. For each
pair, the bottom jack is for network data input. The top jack is
the data and power output.
Connect your data only cables to the bottom row of the RJ45
jacks (from a network switch, video server, etc.).
Connect the top jacks to the corresponding PoE compatible
devices (e.g. IP cameras).
2Ethernet Input (Ethernet)
This port allows users to monitor and control the NPR multi-
port midspan injector through a computer, over a LAN or the
Internet. The management software PowerComPoE is web
browser based. You may connect a PC directly to this Ether-
net port, or via LAN/Internet.
3External Control (External Control)
This connector allows an external trigger voltage to shut-
down selected PoE outputs (programmed by user via the
PowerComPoE management software).
The trigger voltage is 5 to 24V, AC or DC.
4Reset Button (Reset)
Pressing the recessed reset button with a pin for 6 seconds
will reset the IP address and password to the factory default
values.
The factory default IP address is: 192.168.1.9
The factory default user name is: admin
Tthe factory default password is: admin
5Front Panel LEDs (1-8 or 1-16)
Depending on model, 8 or 16 front panel LEDs (labeled 1
through 8 or 1 through 16) indicate the port status of the
corresponding PoE channels. When the output is connected
to a valid PoE Powered Device (PD) within the specified cur-
rent limit, the LED will be green, indicating normal operation.
When there is a fault condition, such as when no PD is con-
nected to that port, the LED will be yellow.
The LED will be turned off if the corresponding port is dis-
abled by the PowerComPoE software.
LED Status Status
Green Normal Operation
Yellow (Fault) No Powered Device connected or fault
condition present
Off Port disabled
When the NPR is first powered, these LEDs will light yellow in
sequence (1-8 or 1-16 depending on model) six times as the
unit performs a self-test
6AC Line Input (AC Power)
This is the connector for the AC line cord. Plug the included
computer-style line cord into this connector. Connect the
other end of the cord to the power strip inside the rack or an-
other suitable AC power receptacle. The NPR series accepts
120-230VAC ONLY.
7Main AC Power Switch / Circuit Breaker (On/Off)
This is the main AC power switch for the NPR. This switch
lights when power is on and also has a built-in circuit breaker
rated at 15A. If the circuit breaker trips, reset it by cycling the
switch to off then back to on.
8External DC Voltage Input (External DC +/-)
This input may be used to either power the NPR via an exter-
nal 50VDC supply or to provide battery backup to the NPR.
The “External DC” input is reverse polarity protected. See be-
low for details:
To Use Battery Backup
Connect AC power to the NPR unit as normal. In addition,
connect a 48V nominal battery set to the “External DC” con-
nector, using the battery cable supplied.
To Use an External 50Vdc Supply
Connect a 50V power supply to the “External DC” connector
at the rear. The ratings requirements for the DC power supply
are given below:
Input voltage range 44 –57 VDC
Max input current (500W model) 14.0 A
Max input current (250W model) 7.0 A
Note that if both AC and DC power sources are connected to
the unit at the same time, the AC source will supply the power
to the output ports. The external DC source will not supply the
outputs unless the AC source is missing or the power switch is
turned off.
The following are basic descriptions. Refer to the appropriate section for more detailed information. Note that the front
panel may appear different based on the configuration of your system.