RTCU NX-900 Technical Manual V1.02
Advanced M2M/IIoT Gateway
Logic IO ApS.
Ph: (+45) 7625 0210
Holmboes Allé 14
Fax: (+45) 7625 0211
8700 Horsens
Page 39 of 45
Denmark
Appendix A
–
Device configuration guide
The RTCU NX-910 has many features and some of them require configuration by using hardware
jumpers inside the device. A brief overview over the jumper settings can be found in the following
table.
Feature
Jumper
State
Default state
Communication
TER1 (
RS485_1
)
Installed
Not installed
120
Ω
resistor enabled.
120
Ω
resistor disabled (
default
).
TER2 (
RS485_2
)
Installed
Not installed
120
Ω
resistor enabled.
120
Ω
resistor disabled (
default
).
Analog input
JPAI1
Installed
Not installed
AI1 current measurement.
AI1 voltage measurement (
default
).
JPAI2
Installed
Not installed
AI2 current measurement.
AI2 voltage measurement (
default
).
Digital input
JPDI1
Position S
Position N
DI1 S0.
DI1 normal (
default
).
JPDI2
Position S
Position N
DI2 S0.
DI2 normal (
default
).
JPDI3
Position S
Position N
DI3 S0.
DI3 normal (
default
).
JPDI4
Position S
Position N
DI4 S0.
DI4 normal (
default
).
DC-Out voltage
JP101
Position 12V
Position 24V
12V DC out.
24V DC out.
TER1
and
TER2
Enables/disables on-board 120
Ω
line termination resistors which are according to standards; RS485
communication requires a proper line termination value (120
Ω
assuming a CAT5 twisted pair cable is
used
) resistors in both ends of the bus. If the RTCU NX-910 device is used as endpoint, the relevant
jumper can be installed.
JPAI1 and
JPAI2
These jumpers are used
to select between current and voltage input. With a jumper installed on the
relevant analog input, it will measure current between 0-20mA.
JPDI1
,
JPDI2
,
JPDI3
and
JPDI4
These select either normal or Class A S0 input for DIN1-4. With the relevant jumper installed in
position “
S
”, the input is configured to S0 when installed in position “
N
”, the inpu
t is a normal
digital input.