Easy Maintenance
The NA-4010 Ethernet network adapter can be expanded by adding up to 32 I/O modules. It provide spring type, removable terminal blocks (RTBs) that allow you to preserve field wiring before replacing an I/O expansion module. Each I/O expansion module can be replaced quickly and easily.
| • Serial Communication Parameters | |
| Parity | None, Even, Odd |
| Data Bits | 7, 8 |
| Stop Bits | 1, 2 |
| Baudrate | 1200 to 115200 bps |
| Signals |
• NA-4020: Data+, Data-, Gnd, DIR (5-contact terminal block) • NA-4021: TxD, RxD, Gnd (9-pin D-Sub female) |
| • Software Features | |
| Protocols | Modbus/RTU, Modbus/ASCII |
| Modbus Address | 00 to 99 (set by rotary switches) |
| Programming Library | MXIO DLL library for Windows; Supports Visual Basic, Visual C++, Borland C++ Builder, .net, VB/VC.NET |
| Number of I/O Modules Supported | Max. of 32 |
| • Power Requirements | |
| Power Input | 11 to 28.8 VDC, 24 VDC typical |
| Power Consumption | 70 mA @ 24 VDC |
| Current for I/O Modules | Max. 1.5 A @ 5 VDC |
| • MTBF (mean time between failure) | |
| NA-4020 Time | 4,695,360 hrs NA-4021 Time: 4,721,640 hrs |
| Database | Telcordia (Bellcore) |