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NPort 1240
NPort 1220/1220I
Board
Ordering Information
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NPort 1220/1220I |
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| 2-Port
RS-422/485 USB-to-Serial HUB |
Overview
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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. |
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Hassle-free Serial Port Expansion
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USB
plug and play allows easy serial port expansion that requuires 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. |
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Dimensions
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Features
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- 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 15 KV ESD Surge Protection
- Supports 2 KV Isolation (NPort 1220I)
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Benefits
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- Low cost USB-to-serial solution
- Easy to install and use
- Plug and unplug without shutting down your PC
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Applications
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- Mobile instrumentation
- POS (Point-Of-Sale)
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Specifications
USB
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Compliance |
USB 1.1,
1.0
USB 2.0 backwards compatible |
|
Connector |
USB type B |
| Speed |
Full speed
12 Mbps |
Serial
|
Interface |
4-wire
RS-422: TxD+/-, RxD+/-, GND
4-wire RS-485: TxD+/-, RxD+/-, GND
2-wire RS-485: Data+/-, 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 to
115.2 Kbps |
Power Requirements
|
Power Input |
12 to 48
VDC (external) or 5 VDC (Bus power) |
|
Power Consumption |
BUS: 140
mA @ 5 VDC
Ext. PWR: 155 mA @ 12V
306 mA @ 12V |
Mechanical Specifications
|
Material |
ABS |
|
Gross Weight |
215 ± 5 g
(0.48 lb) |
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) |
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Safety |
UL, CUL,
TÜV |
Ordering Information
 NPort
1220 |
USB to 2-Port RS-422/485 Serial HUB
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NPort
1220I |
USB to 2-Port RS-422/485 Serial HUB w/Isolation
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All items include |
2-port USB-to-serial HUB
A to B USB cable (50 cm)
Quick Installation Guide
NPort Document and Software CD-ROM
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