User Manual

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Reset Button—Press and hold the Reset button for 5 seconds to load
factory defaults: Use a pointed object, such as a straightened paper clip
or toothpick, to depress the reset button. This will cause the Ready LED to
blink on and off. The factory defaults will be loaded once the Ready LED
stops blinking (after about 5 seconds). At this point, release the reset
button.
LED Indicators—NPort 5200A’s top panel has four LED indicators, which
are described in the following table.
LED
Name
LED
Color
LED Function
Ready
Red
Steady on:
Power is on and the NPort is booting up.
Blinking:
Indicates an IP conflict, or DHCP or BOOTP
server is not responding properly.
Green
Steady on:
Power is on and the NPort is functioning
normally.
Blinking:
The NPort has been located by the NPort
Administrator’s Location function.
Off
Power is off, or a power error..
Link
Orange
10 Mbps Ethernet connection.
Green
100 Mbps Ethernet connection.
Off
Ethernet cable is disconnected.
P1, P2
Orange
Serial port is receiving data.
Green
Serial port is transmitting data.
Off
No data is being transmitted or received through the
serial port.
Adjustable pull high/low resistor and terminator for RS-422/485
Remove the NPort 5230A/5250A’s top
cover and you will find DIP switches to
adjust each serial port’s pull
-high,
pull
-low, and terminator. Do not use th
e 1
K
Ω setting with RS-
232 mode, as doing so
will degrade the RS
-232 signals and
shorten the communications range.
SW
1
2
3
Pull-high resistor
Pull-high resistor
Terminator
ON
1 KΩ
1 KΩ
120 Ω
OFF
*150 KΩ
*150 KΩ
*–
*Default