User`s manual
NE-4100-P Series User’s Manual Panel Layout and Pin Assignments
2-9
NE-4120S-P, NE-4120A-P, NE-4120-ST
The NE-4120S-P is an RS-232-to-Ethernet server, and the NE-4120A-P is an
RS-422/485-to-Ethernet server. Both models use pin headers instead of RJ45 connectors. The
NE-4120-ST is the evaluation board for testing NE-4120S-P and NE-4120A-P modules and
developing your own applications.
ATTENTION
The NE-4120-ST is the same board as the NE-4110-ST but with an RJ45 jack and pin headers. If
your evaluation board has “NE-4110-ST” printed on the board but has the RJ45 jack and pin
headers, you have the NE-4120-ST board.
Panel Layout
NE-4120S-P
1
2
1
2
9
10
13
14
1
2
3
4
5
J1
J2
J3
57.00 mm
40.00 mm
NE-4120A-P
1
2
1
2
9
10
13
14
1
2
3
4
5
J1
J2
JP2
J3
57.00 mm
40.00 mm