Specifications

Total Solutions for Industrial Device Networking
9-45
Remote I/O Servers
www.m o x a . c o m e - m a i l : i n f o @ m o x a . c o m
9
NA-4020 RS-485 Network Adapter
NA-4021 RS-232 Network Adapter
Network Adapter Modules
Specifications
Serial Communication
Baudrate: 1200 to 115200 bps
Data Bits: 7, 8
Parity Bit: None, Even, Odd
Stop Bit: 1, 2
Signal: NA-4020: Data+, Data-, Gnd, DIR
NA-4021: TxD, RxD, Gnd
Software Features
Protocols: Modbus/RTU, Modbus/ASCII
Modbus Address: 00 to 99 by rotary switches
Utility: ioAdmin
Programming Library: MXIO DLL library for Windows supporting
Visual Basic, Visual C++, Borland C++ Builder
Max. I/O Modules: Up to 32 I/O expansion modules
System Power
Power Input: 11 to 28.8 VDC, 24 VDC typical
Pin Assignment
Power Consumption: 70 mA typical @ 24 VDC
Current for I/O Modules: Max. 1.5A @ 5 VDC
Field Power
Rated Voltage: 11 to 28.8 VDC, 24 VDC typical
Current in Field Power Contact: Max. 10A
Protection
System Power to I/O Driver: 2 KV rms optical isolation
Environment
Operating Temperature: -20 to 60°C, 5 to 90%RH
Storage Temperature: -45 to 85°C
Vibration: IEC-68-2-6, 2G in operation
Agency Approvals
EMC: CE EN-55082, EN-55081
Safety: UL 508
Weight
Net Weight: 150 g
0 1
2 3
4 5
6 7
CH0
CH0
CH0 CH0
ioLogik 4000
Modbus RS-485
NA-4020
SYS
TxD
RxD
I/O
Field
Power
0 1
2 3
4 5
6 7
SG
Field Power (0 VDC)
Field Power (24 VDC)
SG
24V 0V
0V 0V
24V 24V
System Power (0 VDC)
System Power (24 VDC)
Field Power (0 VDC)
Field Power (24 VDC)
Shielding Ground
System Power (5 VDC)
System Power (GND)
System Bus
Non-isolation
Switching
Power
1 2 3 4 5
6 7 8 9
Pin Signal
1 ---
2 ---
3 Data+
4 Direction (Output)
5 GND
6 ---
7 ---
8 Data-
Pin Signal
1 ---
2 TxD
3 RxD
4 ---
5 GND
6 ---
7 ---
8 ---
NA-4020 NA-4021
Female DB9 (F)