View USB2-H-5004_7594220.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

easysync ltd unit 1, 2 seaward place, centurion business park, glasgow, g41 1hh, united kingdom tel.: +44 (0) 141 418 0181 fax: + 44 (0) 141 418 0110 e - mail (support): support@easysyn c.co.uk web: http://www.easysync.co.uk neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or re produced in any material or electronic form wi thout the prior written consent of the copyright holder. this product and its documentation are supplied on an as - is basis and no warranty as to their suitability for any particular purpose is either made or implied. easysync ltd will not accept any claim for damages howsoever arising as a result of use or failure of thi s product. your statutory rights are not affected. this product or any variant of it is not intended for use in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in personal injury. this docu ment provides preliminary information that may be subject to change without notice. no freedom to use patents or other intellectual property rights is implied by the publication of this document. easysync ltd, unit 1, 2 seaward place, centurion business pa rk, glasgow, g41 1hh, united kingdom. scotland registered number: sc224924 copyright ? 2010 easysync limited the usb - com - plus adaptors are a family of communication devices from easysync ltd. this model, usb2 - h - 5 00 4 , provides a simple method of adapti ng legacy serial devices with rs 485 interfaces to modern usb ports by incorporating the ftdi ft 4 232 h hi - speed usb bridge chip. a power supply output of +5vdc @ up to 250 ma is available on the 9 - pin d - sub connector. indicator leds provide functional status . had easysync ltd usb2 - h - 500 4 h i - speed usb to 4 - port rs485 adapter data sheet document reference no.: es_000031 version 1.1 issue date: 20 10 - 0 1 - 25
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 2 1 introduction ................................ ................................ ................... 4 1.1 functional description ................................ ................................ .................. 4 1.2 led description ................................ ................................ ............................. 5 1.3 block diagram ................................ ................................ ............................... 5 1.3.1 block description ................................ ................................ ....................... 5 1.4 features ................................ ................................ ................................ ........ 6 1.5 performance figures ................................ ................................ ..................... 7 1.6 ordering information ................................ ................................ .................... 7 2 installation ................................ ................................ ..................... 8 2.1 example applications and configurations ................................ ..................... 8 2.2 hardw are installation ................................ ................................ ................... 8 2.2.1 mounting ................................ ................................ ................................ .. 8 2.2.2 wiring ................................ ................................ ................................ ...... 9 2.3 device driver installation ................................ ................................ ........... 11 2.3.1 microsoft windows ................................ ................................ .................... 11 2.3.2 mac os x, linux, windows ce ................................ ................................ .... 15 3 connections ................................ ................................ .................. 16 3.1 external connectors ................................ ................................ .................... 16 3.1.1 usb ................................ ................................ ................................ ........ 16 3.1.2 rs 485 ................................ ................................ ................................ ..... 17 4 electrical details ................................ ................................ ........... 18 4.1 usb ................................ ................................ ................................ ............. 18 4.2 rs 485 ................................ ................................ ................................ ......... 19 4.3 power output ................................ ................................ .............................. 19 5 mechanical details ................................ ................................ ........ 20 5.1 module mechanical dimensions ................................ ................................ ... 20 5.2 uniclip? mechanical dimensions ................................ ................................ 21 6 physical environment details ................................ ....................... 22 6.1 storage ................................ ................................ ................................ ....... 22 6.2 operating ................................ ................................ ................................ .... 22 7 environmental approvals & declarations ................................ ...... 23 7.1 emi compatibility ................................ ................................ ........................ 23 7.2 safety ................................ ................................ ................................ ......... 23 7.3 environmental ................................ ................................ ............................. 23 7.4 reliability ................................ ................................ ................................ .... 23
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 3 7.4.1 mttf ................................ ................................ ................................ ...... 23 7.5 import / export information ................................ ................................ ....... 24 8 troubleshooting ................................ ................................ ........... 25 8.1 hardware ................................ ................................ ................................ .... 25 8.2 device driver ................................ ................................ .............................. 25 9 contact information ................................ ................................ ..... 26 appendix a - list of figures a nd tables ................................ ............. 27 appendix b - revision history ................................ ............................ 28
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 4 1 introduction 1.1 functional description the usb - com - plus adaptors are a family of communication devices. this model, usb2 - h - 5 00 4 , provides a simple method of adapting legacy serial devices with rs 485 interfaces to modern usb ports. this is accomplished by incorporating the industry standard ftdi ft42 3 2h usb - serial bridge chip. each usb2 - h - 5 00 4 adapter contains a small internal electronic circuit boar d which utilises the ftdi ft42 3 2h , mounted inside a rugged plastic enclosure capable of withstanding industrial temperature ranges. the integrated electronics also include rs 485 level shifters and txd/rxd leds to provide a visual indication of data traffic through the adapter. figure 1 . 1 usb2 - h - 5 00 4 flexible mounting allows the usb2 - h - 5 00 4 to be used in a variety of applications, from a portable adapter to accompany a laptop to permanent installations in industrial, commercial and retail locations. the enclosure incorporates a standard usb - mini - b client connector for connection to an upstream host or hub port. rs 485 - level signals, are available on an industry - standard de - 9p connector. the maximum rs 485 - level data rate is 1 0 mbps. the usb2 - h - 5 00 4 adapter require usb device drivers, available free from http://www.easysync.co.uk or http://www.easysync - ltd.com , which are used to make the usb2 - h - 5 00 4 appear as a virtual com port (vcp). this allows existing serial communications software, such as hyperterminal, to exchange data through the usb2 - h - 5 00 4 to a legacy rs 485 peripheral device. pin 9 of the d - sub connector can pro vide +5v power output with maximum 2 50ma (sum of all current drawn on all 4 interfaces) .
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 5 1.2 led description the usb2 - h - 5 00 4 uses 9 leds to indicate a valid link , as well as data traffic on any of the 4 rs485 interfaces, according to the following table: l ed color function description quantity yellow enumerated on when usb2 - h - 5 00 4 is configured and ready 1 red txd activity flashes when data is transmitt ed from the usb2 - h - 5 00 4 t o the attached rs 485 device 4 green rxd activity flashes when data is transmit ted from the attached rs 485 device to the usb2 - h - 5 00 4 4 table 1 . 1 C led description 1.3 block diagram figure 1 . 2 usb2 - h - 500 4 block d iagram 1.3.1 block description usb mini b client connector this connector provides the interface for connection to a usb host or hub port. a standard a to mini b cable is provided, though one of a different length may also be used. the maximum cable length is 5 meters, according to the usb 2.0 specification. ftdi ft 4 232 h f t d i f t 4 2 3 2 h h i g h - s p e e d u s b s e r i a l b r i d g e u s b m i n i b c l i e n t c o n n e c t o r c h a n n e l a c h a n n e l b r s 4 8 5 l e v e l s h i f t e r d e - 9 p c o n n e c t o r a c h a n n e l c c h a n n e l d r s 4 8 5 l e v e l s h i f t e r d e - 9 p c o n n e c t o r b r s 4 8 5 l e v e l s h i f t e r d e - 9 p c o n n e c t o r c r s 4 8 5 l e v e l s h i f t e r d e - 9 p c o n n e c t o r d
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 6 ft 4 232 h hi - speed usb 2.0 (480mb/s) is a quad seri al uart interface ic device. operating system device drivers are required in order to work with the ft 4 232 h to provide the virtual com port serial functionality. quad rs 485 level shifter the rs 485 level shifter converts the signals provided by the ft 42 32 h into the voltage levels required by rs 485 devices. de - 9p connector (male) the de - 9p connector is configured in an industry standard (tia/e ia - 485 ) pin - out to provide connection to rs 485 peripherals through standard cables. see section 3.1.2 1.4 features adds quad rs - 485 serial port s by connecting to a usb 2.0 hi - speed interface. easy plug & play installation and rs - 4 85 device connection works with usb 1.1 & 2.0 host and hub ports industry standard ftdi chip set & device drivers for maximum compatibility microsoft windows ? whql - certified, mac os x, linux and windows ce device drivers installs as a standard windows co m port com port number can be changed to any available com port number, to support hyperterminal, or any other serial communications software application running in windows supports windows server 2008, 2003, vista, xp , 2000, linux, mac os x fifo: 2k by te transmit buffer, 2 k byte receive buffer rs - 485 data signals: data+ , data - , gnd powered by usb port. no external power adapter required. pin 9 of d e - 9 p can provide +5vdc output at 250 ma (total on 4 ports) serial port speed up to 10 mbps serial communi cation parameters o parity: none, even, odd o data bits: 7, 8 o flow control: x - on/x - off, none four de - 9p male connector leds indicate usb enumeration, rxd, txd for monitoring port status & easy diagnostics operating temperature of - 40c to +85c usb cabl e of 0.9 meter included echo and non - echo modes selection . fcc and ce approved.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 7 1.5 performance figures parameter performance usb interface 480 mbps usb 2.0 hi - speed rs 485 interface standard windows baud rates (300bps to 921.6kbps) custom baud rates (300b ps to 10 mbps ) through baud rate aliasing. see ftdi application note: configuring ft232r, ft2232 and ft232bm baud rates table 1 . 2 - performance figures 1.6 ordering information part number description usb2 - h - 500 4 usb - com - plus hi - speed usb to 4 - port rs 485 adapter table 1 . 3 - ordering information
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 8 2 installation 2.1 example applications and confi gurations 2.2 hardware installation there are no switches or jumpers to configure on the usb - com - plus usb2 - h - 500 4 . 2.2.1 mounting the usb2 - h - 500 4 is provided with two mounting options: uniclip? wall/din rail mount and rubber feet. the uniclip wall/din rail moun t allows the usb2 - h - 500 4 to be permanently mounted to a wall or attached to a din rail. the rubber feet can be used when mobility or desktop use is desired. note: the uniclip provides a permanent mounting style. the usb2 - h - 500 4 case may be damaged if th e uniclip is removed. the following figures indicate various mounting styles. figure 2 . 1 - usb2 - h - 500 4 with uniclip brackets figure 2 . 2 - usb2 - h - 500 4 with rubber feet
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 9 2.2.2 wiring a standard 0.9m usb a to mini b cable is provided. insert the a - plug into an available usb host or hub port. insert the mini b - plug into the b - receptacle on the usb2 - h - 500 4 . dte pin number signal name e xpected c onnect s ignal 1 data - = transmit /receive data , negative polarity also terminator 2 data - pin 2 of 120r terminating resistor. only required if the usb2 - h - 5004 is the first or last device in a multi - drop rs485 system, to meet rs485 termination requirements. 2 d ata + = transmit /receive data , positive polarity d ata+ 3 terminator 1 pin 1 of 120r terminating resistor. only required if the usb2 - h - 5004 is the first or last device in a multi - drop rs485 system, to meet rs485 termination requirements. 4 n/a n/a 5 gnd = si gnal ground gnd 6 n/a n/a 7 echo disable terminal 1 local echo function control. connect pin7 and pin 8 can disable the local echo function. the local echo is enabled by default. 8 echo disable terminal 2 local echo function control. connect pin7 and pin 8 can disable the local echo function. the local echo is enabled by default. 9 pwr = +5v dc output pwr table 2 . 1 C rs 485 dte to dce connection figure 2 . 3 usb2 - h - 500 4 termination resistor
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 10 figure 2 . 4 usb - com 485 - plus4 echo disable
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 11 2.3 device driver installation the usb2 - h - 500 4 adaptor drivers are available for download from: http://www.easysync.co.uk C united kingdom site http://www.easysync - ltd.com C usa site 2.3.1 microsoft windows with the device drivers being windows hardware quality labs (whql) certified, they are also av ailable through download directly from the microsoft ? windows ? update service. this is the best choice when connecting the usb2 - h - 500 4 to a computer running windows vista. additional i nstallation options are noted below: installation executable on window s xp 1) login to your system as administrator, or a user with administrator rights. 2) prior to connecting the usb2 - h - 500 4 to the usb host or hub port, download the latest device driver version from the easysync web site. 3) run this executable to install the devic e drivers. 4) connect the usb2 - h - 500 4 to your computer. a notification will appear near the task bar indicating that new hardware has been installed and is ready for use. it is normal if this notice appears twice. figure 2 . 5 - hardware ready windows update shown on windows xp you must have an active internet connection and the windows update service enabled. 1) connect the usb2 - h - 500 4 to your usb host or hub. 2) the found new hardware wizard will appear. the f irst dialog should ask whether it is acceptable to use the windows update service to find the device driver. figure 2 . 6 C found new hardware wizard 3) select one of the yes choices and click next. 4) the following screen appears:
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 12 figure 2 . 7 C automatic install 5) wait while the driver is found, downloaded, and installed. this step may take a couple minutes depending on the internet speed. 6) after the files are found and installed, click finish to complete the installation. figure 2 . 8 - complete hardware installation 7) steps 2 through 6 will repeat. the first time installs the basic usb serial converter in the us b device tree. the second time installs the virtual com port layer in the ports tree and assigns the com port number. 8) when both portions of the device driver have been installed successfully, the following message will appear, indicating that the device i s ready. figure 2 . 9 - hardware ready
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 13 com port assignment next, to determine which com port has been assigned, open the windows device manager from the system control panel. figure 2 . 10 - device manager click on the plus + sign next to the ports tree to list the available com port. you will see easysync usb com port, followed by a comn assignment. a nd four additional easysync usb serial converter a , easysync usb serial converter b , easysync usb serial converter c and easysync usb serial converter d . figure 2 . 11 - com port assignment t o determine which com port has been assigned to converter a , b, c or d, the cursor point to the usb serial port (com5 ), (com6), (com7), (com8), then right - click on it and select properties , it shows their relationship to the converter a, b, c or d.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 14 in the figure below, the converter a is assigned to com 5, conve rter b is assigned to com 6, converter c is assigned to com 7 and converter d is assigned to com 8. figure 2 . 12 C com port assignment and proterties use this com port number with your application software in order to access the usb2 - h - 500 4 . if an application requires use of a different com port number, the assignment may be changed through the advanced driver options settings. from the above properties , click on the port settings tab.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 15 figure 2 . 13 - settings tab then click on the advanced button. figure 2 . 14 - advanced options this will display the various advanced settings. note the com port ass ignment in the upper left. clicking on the drop - down list will display the available port numbers. select one that is not in use and click ok on each dialog box to activate the selection. windows will remember this com port number. 2.3.2 mac os x, linux, win dows ce device drivers and ftdi installation guides for mac os x, linux and windows ce are available for download on the easysync web sites. follow the respective ftdi installation guides for the chosen operating system.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 16 3 connections 3.1 external connectors 3.1.1 u sb the usb - h - 500 4 is a downstream usb 2.0 device. a standard usb series mini b receptacle is mounted inside the usb - h - 500 4 to facilitate connection to an upstream usb host or hub. pin number pin type description 1 power vbus C usb power provided fr om upstream usb host or hub 2 bidirectional d C = usb data signal, negative polarity 3 bidirectional d+ = usb data signal, positive polarity 4 id no connected 5 ground gnd = usb signal ground shield case ground drain = typically connected to the host p c case table 3 . 1 C usb " mini b" receptacle pin - out
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 17 3.1.2 rs 485 the rs 485 port is configured as data terminal equipment (dte), with a 9 - contact d - sub pin connector. pin assignments are according to tia/eia - 485 . in addition, pin9 of this connector can provide +5vdc to an external device with a maximum current draw of 2 50ma once the usb2 - h - 500 4 has been enumerated by the system. pin number pin type description 1 input/ output data - pin 2 of 120r terminating resist or. only required if the us b2 - h - 5004 is the first or last device in a multi - drop rs485 system, to meet rs485 termination requirements. 2 input/ output d ata+ 3 input pin 1 of 120r terminating resistor. only required if the usb2 - h - 5004 is the first or last device in a multi - drop rs485 system, to meet rs485 termination requirements. 4 n/a n/a 5 gnd = signal ground gnd 6 n/a n/a 7 input local echo function control input pin. connect pin7 and pin 8 can disable the local echo function. the local echo is ena bled by default. 8 output local echo function control output pin. connect pin7 and pin 8 can disable the local echo function. the local echo is enabled by default. 9 pwr = +5v dc output pwr table 3 . 2 C de - 9p rs 485 pin - out
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 18 4 electrical details 4.1 usb parameter description minimum typical maximum units conditions usb_vcc input power voltage* 4.25 5.0* 5.25 v *present when usb cable is attached and usb host or hub powered. i cc usb current*** 30 50 ma ***does n ot include power supplied to external device connected to pin 9 table 4 . 1 - usb electrical details
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 19 4.2 rs 485 parameter description minimum typical maximum units conditions receiver input vcm common - mode inpu t voltage range - 7 +12 v in input current 1.0 ma vin = +12v - 0.8 vin = - 7 v vth d i fferential threshold voltage,vth - 0.2 +0.2 v vihyst input hysteresis 20 mv rin input resistance, rin 12 15 k transmitter output vod d i fferential output voltage, dvod 1.5 5 v with rl = 54 . cl = 50pf * esd tolerance esd hbm rs485 inputs and outputs 15 kv en61000 - 4 - 2contactdischarge rs - 4 85 inputs and outputs 8 kv en61000 - 4 - 2airgapdischarge rs - 4 85 inputs and outputs 15 kv table 4 . 2 C rs 485 electrical details 4.3 power output the usb2 - h - 500 4 assign s pin9 of d e - 9 p to provide +5v dc for an external device that requires power. the maximum allowable cur rent that can be supplied from the usb bus is 500ma, including the circuitry of the usb2 - h - 500 4 itself. up to 2 50ma may be used by the external device s connected to the 4 ports . parameter description minimum typical maximum units conditions i o output po wer current 0 2 50 ma total available current from all 4 ports table 4 . 3 - power output option
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 20 5 mechanical details 5.1 module mechanical dimensions table 5 . 1 - us b2 - h - 500 4 case dimensions dimensions are shown in mm.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 21 5.2 uniclip? mechanical dimensions # table 5 . 2 - usb2 - h - 500 4 case dimensions with uniclip the uniclips are symmetrical. dimensions (in mm) are shown for one uniclip only for clarity.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 22 6 physical environment deta ils 6.1 storage parameter description minimum typical maximum units conditions t storage temperature range - 65 +150 o c table 6 . 1 - storage temperature 6.2 operating parameter description minimum typical maximum units conditions t operating temperature range C 40 +85 o c 5% to 95% rh, non condensing table 6 . 2 - operating temperature
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 23 7 environmental approvals & declarations 7.1 emi compatibility fcc and ce the usb2 - h - 500 4 has been tested to be compliant with both fcc part 15 subpart b and european emc directive. note: this is a class b product. in a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate mea sures. note: this equipment has been tested and found to comply with the limits for a class b digital device, pursuant to part 15 of the fcc rules. these limits are designed to provide reasonable protection against harmful interference in a residential i nstallation. this equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. however, there is no guarantee that interference will not occur in a particular installation. if this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one o r more of the following measures: reorient or relocate the receiving antenna. increase the separation between the equipment and receiver. connect the equipment into an outlet on a circuit different from that to which the receiver is connected. consult the dealer or an experienced radio/tv technician for help. 7.2 safety the usb2 - h - 500 4 is d efine d as limited power supply (lps) device, with operating voltages under 60vdc . 7.3 environmental the usb2 - h - 500 4 is a lead - free device that complies with the following enviro nmental directives: rohs, weee, reach, pfos and decabde. 7.4 reliability the usb2 - h - 500 4 is designed as a robust usb - serial adapter for use in many environments. there are no user - serviceable parts. any failure will require a replacement of the unit. 7.4.1 mttf the mean time to failure is calculated at tbd hours.
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 24 7.5 import / export information import / export information country of origin china harmonized code tbd product description usb to rs 485 computer adapter, four port s usa eccn ear99 C no license required table 7 . 1 - import / export information
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 25 8 troubleshooting 8.1 hardware cables are the most common sources of trouble with external devices. check the following: - usb cable is properly inserted at both ends - comput er power is on - computer is not in sleep or standby - if a usb hub is used, be sure it is set for self - powered operation - if a usb hub is used, be sure all cables are properly inserted - if all the above are ok, the yellow led should be lit, indicating the dev ice has been recognized by the usb subsystem. rs 485 cables C check the following: - check for specific handshake requirements of your rs 485 peripheral. - because there are no handshake signals, ensure the application is set to no hardware handshake, or equiv alent. - test the port with a loop - back connector. connect d ata+ to data+ , data - to data - . use a simple terminal program to check that data is transmitted and received. 8.2 device driver ensure the latest device driver is in use. see http://www.easysync.co.uk or http://www.easysync - ltd.com . if other devices with ftdi chips are installed in the system, check with all manufacturers of these devices for the latest device drive rs. see the ftdi installation guides for additional details: http://ftdichip.com/documents/installguides.htm common windows device driver troubles: device times out : the default settings of t he device driver assume typical data transfers of hundred to thousands or more bytes at a given time. some applications, such as a gps device, only send data in short packets, often only a few bytes. if this is the case, it may be necessary to adjust the drivers buffer size and/or latency timer to smaller values. these values can be adjusted through the advanced driver options as noted in figure 2.13. the buffer size can be reduced to 64 bytes. the latency timer can be set as low as 2ms. a setting of 1ms will cause unnecessary usb traffic and could adversely affect data transmission. erratic mouse pointer : the device driver defaults to query an attached device to find out whether it is a mouse or modem, consistent with native com port operation. some rs 485 peripherals constantly send short packets of data, causing the host system to think a mouse or modem has been attached. these short packets will interfere with normal mouse operation causing the pointer to jump around the screen. if this happens , disconnect the rs 485 device and uncheck the serial enumerator option, also found on the advanced driver options screen in figure 2.13. com port in use: windows keeps track of all com port assignments. if multiple easysync products have been connected t o a single system, the com port number will increase, even if the other devices are not attached. if the higher com port assignments are not acceptable for the application, known unused com port numbers should be uninstalled according to the ftdi installa tion guide: http://ftdichip.com/documents/installguides.htm .
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 26 9 contact information head office C glasgow, uk easysync limited unit 1, 2 seaward place, centurion business park glasgow, g41 1 hh united kingdom tel: +44 (0) 141 418 0181 fax: +44 (0) 141 418 0110 e - mail (sales) sales@easysync.co.uk e - mail (support) support@easysync.co.uk e - mail (general enquiries) admin@easysync.co.uk web site url http://easysync.co.uk web shop url http://easysync.co.uk branch office C hillsboro, oregon, usa easysync limited (usa) 7235 nw evergreen parkway, suite 600 hi llsboro, or 97123 - 5803 usa tel: +1 (503) 547 0909 fax: +1 (503) 547 0990 e - mail (sales) sales@easysync - ltd.com e - mail (support) support@easysync - ltd.com e - mai l (general inquiries) admin@easysync - ltd.com web site url http://easysync - ltd.com web shop url http://easysync - ltd.com
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 27 appe ndix a - list of figures and tables list of figures figure 1.1 usb2 - h - 5 00 4 ................................ ................................ ................................ ................................ ... 4 figure 1.2 usb2 - h - 500 4 block diagram ................................ ................................ ................................ ......... 5 figure 2.1 - usb2 - h - 500 4 with uniclip brackets ................................ ................................ ........................... 8 figure 2.2 - usb2 - h - 500 4 with rubber feet ................................ ................................ ................................ .. 8 figure 2.3 usb2 - h - 500 4 termination resistor ................................ ................................ ............................... 9 figure 2.4 usb - com 485 - plus4 echo disable ................................ ................................ ............................. 10 figure 2.5 - hardware read y ................................ ................................ ................................ ......................... 11 figure 2.6 C found new hardware wizard ................................ ................................ ................................ ... 11 figure 2.7 C automatic install ................................ ................................ ................................ ........................ 12 figure 2.8 - complete hardware installation ................................ ................................ ............................... 12 figure 2.9 - hardware ready ................................ ................................ ................................ ......................... 12 figure 2.10 - device manager ................................ ................................ ................................ ........................ 13 figure 2.11 - com port assignment ................................ ................................ ................................ ............. 13 figure 2.12 C com port assignment and proterties ................................ ................................ ................... 14 figure 2.13 - settings tab ................................ ................................ ................................ .............................. 15 figure 2.14 - advanced options ................................ ................................ ................................ .................... 15 list of tables table 1.1 C led description ................................ ................................ ................................ ............................ 5 table 1.2 - performance figures ................................ ................................ ................................ ..................... 7 table 1.3 - ordering information ................................ ................................ ................................ ..................... 7 table 2.1 C rs 485 dte to dce connection ................................ ................................ ................................ .... 9 table 3.1 C usb " mini b" receptacle pin - out ................................ ................................ ............................. 16 table 3.2 C de - 9p rs 485 pin - out ................................ ................................ ................................ .................. 17 table 4.1 - usb elect rical details ................................ ................................ ................................ .................. 18 table 4.2 C rs485 electrical details ................................ ................................ ................................ ............. 19 table 4.3 - power output option ................................ ................................ ................................ ................... 19 table 5.1 - usb2 - h - 500 4 case dimensions ................................ ................................ ................................ . 20 table 5.2 - usb2 - h - 500 4 case dimensions with uniclip ................................ ................................ ........... 21 table 6.1 - storage temperature ................................ ................................ ................................ ................... 22 table 6.2 - operating temperature ................................ ................................ ................................ ............... 22 table 7.1 - import / export information ................................ ................................ ................................ ......... 24
document reference no.: es_000031 usb2 - h - 5004 hi - speed usb to 4 - port rs485 adapter data sheet version 1.1 clearance no.: es #23 ?2010 ea sysync ltd. 28 appendix b - revision history version 1.0 first release 2009 - 0 9 - 15 version 1.1 m odify the description o f echo function changed colour to black/silver 25 th january 2010

▲Up To Search▲

Price & Availability of USB2-H-5004

	To Download USB2-H-5004 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .