NPORT 1220I
USB to 2-Port RS-422/485 Serial HUB - 2 KV Optical Isolation
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Prodotti Correlati
Features and Benefits
- Expand to 2 RS-422/485 Ports throught USB
- Supports 4-wire RS-422/485 and 2-wire RS-485 applications
- Hot plug and play
- Supports bus power and external power
- No additional I/O, IRQ required
- RS-422/485 speed up to 115.2 Kbps
- Supports USB 1.1, full rate speed up to 12 Mbps
- Built-in 16 KV ESD Surge Protection
- 2 KV Isolation Protection available with 1220I
- Low cost USB-to-serial solution
- Easy to install and use
- Plug and unplug without shutting down your PC
Introduction
NPort 1220 gives your laptop or workstation the ability to communicate between a USB (Universal Serial Bus) port and up to 2 RS-422/485 serial peripherals. NPort 1220 adds 2 Windows serial COM ports via its USB port, and is compatible with new and legacy RS-422/485 devices. USB plug and play allows easy serial port expansion that requires no IRQ, DMA, or I/O port resources. Users no longer need to open the chassis or power down the system, saving setup time and cost.
Specifications
Operating Systems: Windows 98/2000/XP, Linux
USB Compliance:
USB 1.1, 1.0
USB 2.0 backwards compatible Connector
USB type B Speed: Full speed 12 Mbps
Serial Interface
Signals:
RS-422: TxD+/-, RxD+/-, GND
4-wire RS-485: TxD+/-, RxD+/-, GND
2-wire RS-485: Data+/-, GND
Connector
Terminal Block FIFO:
128 bytes Serial line protection
16 KV ESD for all signals
Serial Communication Parameters Parity: None, Even, Odd
Data bits: 7, 8
Stop bit: 1, 2
Flow control: RTS/CTS Speed 600 bps to 115.2 Kbps
Power Requirements
Power Input: 12 to 48 VDC (external) or 5 VDC (Bus power)
Enter Specification Type:
BUS: 140 mA at 5 VDC
Ext. PWR: 306 mA at 12V
Mechanical Power Input: 12 to 48 VDC (external) or 5 VDC (Bus power)
Gross Weight: 220 ± 5 g (0.48 lb)
Dimensions: (W x D x H) 170 x 110 x 30 mm
Environmental
Operating Temperature: 0 to 55°C (32 to 131°F)
Storage Temperature: -20 to 85°C (-4 to 185°F)
Operating Humidity: 5 to 95% RH
Regulatory Approvals: EMC, FCC (Class B), CE (Class B)
Safety: UL, CUL, TÜV