Moxa Technologies NE-4100 Series - Block Diagrams

NE-4100 Series User’s Manual Panel Layout and Pin Assignments
2-12
NE-4120-ST Pinouts
Debug Serial Port for Serial Console RS-232 Port for Serial Devices
Pin Signal
2 RXD
3 TXD
5 GND
2
3
5
Pin Signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
1
6
2
7
3
8
4
5
Serial and DIO Terminal Blocks
TXD+ D0 D1 D2 D3TXD- RXD+ RXD-
Data+ Data-
SGND
Block Diagrams
NE-4120S Block Diagram
Pin header
1 MB SDRAM
2 MB Flash
10/100 M
Ethernet PHY
+5 VDC
MAC
80186 CPU
Transformer
1.5 KV isolation
UART0
Tx Rx
Customer’s device
Ready
LED
RS-232 interface
Tx+ Tx- Rx-Rx+
Serial console
interface
Line
Driver
Line
Driver
UART1
GPIO Port
PIO0 - PIO3
10M
LED
100M
LED
Serial data
(Tx, Rx, RTS, CTS,
DTR, DSR, DCD)
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-9766-Moxa-NE-4120A.aspx