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NE-4100 Series User’s Manual
Getting Started
3-4
Installing the NE-4120S, NE-4120A onto the NE-4120-ST
The NE-4120S and NE -4120A modules are attached to the NE-4120-ST board using mounting
screws that are provided with the board. When attaching the module to the board, make sure that
the module is oriented so that the jumper banks on the module and the board are aligned as shown
below. Use the provided ribbon cables to connect jumper block J1 on the module to J9 on the
board, J2 on the module to J10 on the board, and J3 on the module to J7 on the board. When
plugging in each ribbon cable, make sure that the red key wire corresponds with pin 1 on each
jumper block.
NE-4120-ST Starter Kit
1
2
3
4
O N
D I P
9 10
13 14
1
2
1
2
1
2
1
2
9
0
1
3
1
4
1
1
2
3
4
5
NE-4120 Series
Module
J2
J10
J1
J9
1
2
3
4
5
J3
J7
Selecting the Serial Interface
NE-4100 Series modules are available for different serial interfaces. The NE-4110S and NE-4120S
are designed for the RS-232 interface, and the NE-4110A and NE-4120A are designed for the
RS-422/485 interface. On the NE-4110-ST and NE-4120-ST evaluation boards, the Network
Enabler Interface jumper block is used to select the serial interface used for your particular
module.
JP2 Network Enabler Interface
For the NE-4110S and NE-4120S, the evaluation board
should be configured for the RS-232 interface, as shown
below.
RS-485
RS-232
JP2 Network Enabler Interface
For the NE-4110A and NE-4120A, the evaluation board
should be configured for the RS-485 interface, as shown
below.
RS-485
RS-232
Note that the RS-485 interface is selected on the evaluation board for the NE-4110A and
NE-4120A modules, even when the module is operating in RS-422 mode. Please refer to Chapter
2, Panel Layout and Pin Assignments for additional details.
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-9766-Moxa-NE-4120A.aspx