Regarding are very many needs to use the notebook
computer to be engineer which the equipment debugs to say that, now
the majority of notebooks have not provided the string mouth, but the
USB connection becomes the notebook computer the sign to match the
connection. If engineer carries on the debugging with the
notebook computer to scene RS-232 perhaps the RS-422/485 equipment,
becomes a headache the question. Usually has the user to be able
to select in the market low-grade USB to the RS-232 transformation
line cable, but this kind of low performance transformation line cable
can frequently appear the data transmission when the actual use not
not stably, with the system compatibility bad, transmits the big data
?is easy to make a mistake and so on the question, these questions
are extremely easy to mislead engineer. More more importantly,
if needs to meet the scene RS-422 perhaps the RS-485 equipment,
engineer will certainly to meet again strings together the mouth to
steal the electricity together passive RS-232 to transfer the
RS-422/485 switch, if selects this application method, then data
transmission reliability and stability it can be imagined. In
addition has the disturbance serious industry scene as a result of
USB-232 the mouth damage computer USB mouth phenomenon common
occurence, believed very many engineers all have had the similar
painful experience, but in the market also does not have a better
product to solve this problem. Based on to the string mouth communication product
long-term specialized research and development and the manufacture
foundation, the Jinan Pu news science and technology most newly
promotes the string mouth communication sharp weapon -USB to transfer
the double string mouth photoelectricity to isolate the switch, the
model is PX8008, its industry level design mentality and the idea, the
complete photoelectricity isolate with 突波 the protective measures,
causes its remarkable performance radically to distinguish between the
commercial level ordinary USB-RS232 switch. Thorough settlement
use notebook computer engineer makes the scene debugging the extra
worries. The model is PX8008 USB transfers the double string mouth
photoelectricity isolation switch, after the correct installment
driver, will found in 2 independent strings mouths - for instance your
notebook computer in user's notebook computer to have COM1 which the
system will tacitly approve, then PX8008 other will found 2 strings
mouths, respectively will be COM2 and COM3. Foundation
hypothesized string mouth COM2 is an entire line (contains DCD, RXD,
TXD, DTR, GND, DSR, RTS, CTS, RI) DB-9 the connection nine needles
RS-232 connection, this and the desktop computer string mouth is
completely same. PX8008 founds hypothesized string mouth COM3,
has directly completed USB to RS-422 perhaps the RS-485
photoelectricity isolation transformation function (RS-422 and RS485
public group of line balls type binding clamp, RS-422 and the RS-485
choice carries through board jumps line switch choice). Then
meant the user selects hypothesized string mouth COM3, may directly
connect with the RS-422 equipment, like selects the RS-485 wiring
method, then PX8008 will be 2 ports RS-485 concentrators, the user may
use TA, TB, perhaps RA, a RB group is wilfully connected with the
equipment RS-485 port, enhances the festival points a time. As 2 independent hypothesized strings mouths COM2 and
COM3, the user in a module, may simultaneously realize USB to the
entire line RS-232 mouth and USB to the RS-422/485 transformation
function. Main function and technical specification:
The industry guide rail installment, is suitable for the
industry scene;
The -USB port transformation is 2 independent strings mouths;
RS-232 port is 9 makes the DB-9 needle type entire line string
mouth;
- The support simultaneously applies to RS-232 and the RS-422
entire duplex pattern, or 2 channels RS-485 concentrator half-duplex
communication pattern;
- The signal photoelectricity isolation, the power source DC-DC
isolation transforms, the isolation pressure resistance reaches 3000V;
TI Corporation special-purpose chip realization computer USB
connection protection
- In sets at 600W anti- to be struck by lightning the
protector to protect the RS485 mouth, as well as 16KV ESD protects
RS232
-LED instructed the power source, the signal receive,
sends the active status;
The -USB port takes the electricity, does not need exterior
power supply;
- The data transmission speed automatic adaption, covers
0~1MBPS;
- The communication distance supports in 1,500 meters (and
communication speed, communication electric cable performance
related);
- In sets jumps the line to be possible to dispose the RS-485
main line terminal resistance;
- Industry level temperature range;
- Input: USB square shape plug;
- Output: RS-232 is the DB-9 needle type attachment,
RS-422/485 uses 7 line balls binding clamp;
- Size: L*W*H: 115*70*25mm --------------------------------
Jinan Pu news science and technology limited liability
company
Sale department: Li Min
Telephone: 0531-846424518 86.652206 million
Facsimile: 0531-86424519
Electricity postal: Limin@pxtech.cn
Website www.pxtech.cn
Jinan Puxun Technologies.Co., Ltd
No.5-1 Yangtouyu Street Jinan Shandong
Province.P.R.China
Sales Manager: Mr.Li Min
Tel:+86-531-86424518 86.652206 million
Fax:+86-531-86424519
E-mail: Limin@pxtech.cn
MSN:puxuntech@hotmail.com
Skype:pxtech2
Web:www.linkports.com
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