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rs-485 configuration switches
The configuration switches are found on the right side of the
NGC-UIT2-ORD. Refer to the table below for settings.
position
switch
on
Pull-down
(As-shipped default) RS-485 network
"–" signal is forced to a determinate
state when idle.
Pull-up
(As-shipped default) RS-485 network
"+" signal is forced to a determinate
state when idle.
Termination
(As-shipped default) RS-485 network
is terminated with 120-ohm resistor.
reset switch
The Reset switch can be found on the side of the NGC-UIT2-ORD. A
pointed object is required to press the reset switch and restart the
NGC-UIT software.
NORTH AMERICA
Tel: +1.800.545.6258
Fax: +1.800.527.5703
Tel: +1.650.216.1526
Fax: +1.650.474.7711
thermal.info@pentair.com
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to change specifications without prior notice.
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INDUSTRIAL HEAT TRACING SOLUTIONS
off
RS-485 network "–" signal is not
forced to a determinate state when
idle.
RS-485 network "+" signal is not
forced to a determinate state when
idle.
RS-485 network is not terminated.
EuROpE, MIddlE EAsT, AfRICA
Tel: +32.16.213.511
Fax: +32.16.213.603
thermal.info@pentair.com
GB-RaychemNGCUIT20RD-IM-H58531 INSTALL-168 05/15
RS-485-1
Termination
3 2 1
ON
comments
One device (typically this NGC-UIT2-ORD) on the
RS-485 network should force the network "-" signal
to a determinate state.
One device (typically this NGC-UIT2-ORD) on the
RS-485 network should force the network "+" signal
to a determinate state.
Terminate the device (NGC-UIT2-ORD or other) that
is at each end of the RS-485 network, for a total of
two terminated devices. No other devices on the
network should be terminated.
AsIA pACIfIC
Tel: +86.21.2412.1688
Fax: +86.21.5426.2937
cn.thermal.info@pentair.com
RS-485-2
Termination
Reset
WWW.PENTAIRTHERMAL.COM
lATIN AMERICA
Tel: +1.713.868.4800
Fax: +1.713.868.2333
thermal.info@pentair.com
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