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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@easysync.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 reproduced in any material or electronic form without the prior written consent of the copyright holder. this product and its documentat ion 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 this product. your statutory rights are n ot 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 document provides preliminary information that may be subject to change without notice. no freedom to use patents or ot her intellectual property rights is implied by the publication of this document. easysync ltd, unit 1, 2 seaward place, centurion business park, glasgow, g41 1hh, united kingdom. scotland registered number: sc224924 copyright ? 2010 easysync limited t he usb2 - h - 9 002 - m provides a simple method of adapting legacy serial devices with rs 232 and rs485 interfaces to modern usb ports by incorporating the ftdi ft2232h hi - speed usb bridge chip. the adaptor which is contained within a metal case can be externally powered and can supply an output of +5vdc @ up to 2 50ma on the 5mm terminal block connectors. indicator leds provide functional status. had easysync ltd usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet document reference no.: es_000046 version 1.0 issue date: 20 10 - 0 6 - 1 5
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync 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 ................................ ................................ ..................... 8 1.6 ordering information ................................ ................................ .................... 8 2 installation ................................ ................................ ..................... 9 2.1 example applications and configurat ions ................................ ..................... 9 2.2 hardware configuration ................................ ................................ ................ 9 2.2.1 mounting ................................ ................................ ................................ . 11 2.3 device driver installation ................................ ................................ ........... 12 2.3.1 microsoft windows ................................ ................................ .................... 12 2.3.2 mac os x, linux, windows ce ................................ ................................ .... 16 3 connections ................................ ................................ .................. 17 3.1 external connectors ................................ ................................ .................... 17 3.1.1 usb ................................ ................................ ................................ ........ 17 3.1.2 rs 232 connections ................................ ................................ ................... 17 3.1.3 rs 485 connections ................................ ................................ ................... 18 4 electrical details ................................ ................................ ........... 19 4.1 usb ................................ ................................ ................................ ............. 19 4.2 rs 232 ................................ ................................ ................................ ......... 19 4.3 psu input ................................ ................................ ................................ ... 19 4.4 rs 485 ................................ ................................ ................................ ......... 20 4.5 power output ................................ ................................ .............................. 20 5 mechanical details ................................ ................................ ........ 21 6 physical environment details ................................ ....................... 23 6.1 storage ................................ ................................ ................................ ....... 23 6.2 operating ................................ ................................ ................................ .... 23 7 environmental approvals & declarations ................................ ...... 24 7.1 emi compatibility ................................ ................................ ........................ 24 7.2 safety ................................ ................................ ................................ ......... 24 7.3 environmental ................................ ................................ ............................. 24 7.4 reliability ................................ ................................ ................................ .... 24 7.4.1 mttf ................................ ................................ ................................ ...... 24
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 3 7.5 import / export information ................................ ................................ ....... 25 8 troubleshooting ................................ ................................ ........... 26 8.1 hardware ................................ ................................ ................................ .... 26 8.2 device dr iver ................................ ................................ .............................. 26 8.3 technical support ................................ ................................ ....................... 27 9 contact information ................................ ................................ ..... 28 appendix a - list of figures and tables ................................ ............. 29 appendix b - revision history ................................ ............................ 30
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 4 1 introduction 1.1 functional description the usb 2 - h - 9002 - m adaptor is a usb to dual interface rs232 or rs4 85 level serial uart adaptor incorporating ftdis ft 2 232 h hi - speed usb 2.0 (480mb/s) to dual seri al uart interface ic device. the ft 2 232h handles all the usb signaling and protocols. the adaptor is housed in a metal en closure and provides a fast, simple way to connect devices with a n rs232 or rs4 85 interface to usb. the integrated electronics of the usb2 - h - 9 00 2 - m utilise the ftdi ft 2 232 h and includes rs 485 level shifters and rs232 level shifters plus txd/rxd leds to pr ovide a visual indication of data traffic through the adapter. selection of rs232 or rs485 signalling is made using dil switches on the front of the adaptor. each of the dual channels can be independently configured as either rs232 or rs485. figure 1 . 1 usb2 - h - 9 00 2 - m flexible mounting allows the usb2 - h - 9 00 2 - m to be used in a variety of applications, from a portable adapter to accompany a laptop to permanent installations in industrial, commercial and retail l ocations. the metal enclosure incorporates a standard usb - b client connector for connection to an upstream host or hub port. rs232 and rs 485 - level signals are available on two 5mm t erminal b lock connector s . the maximum rs 485 - level data rate is 1 0 mbps and the maximum rs232 - level data rate is 1mbps. the adapter can be independently powered using an external +5v dc (1a) power supply which connects via a 2.1mm jack socket. it can also be powered from the usb interface if required. the usb2 - h - 9002 - m adapter r equire s usb device drivers, available free from http://www.easysync - ltd.com . these are used to make the usb2 - h - 9002 - m appear as a virtual com port (vcp). this allows existing serial communications software, suc h as hyperterminal, to exchange data through the usb2 - h - 9002 - m to a legacy rs 485 or rs232 peripheral device.
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 5 1.2 led description the usb2 - h - 9002 - m uses 5 leds to indicate a valid link as well as data traffic according to the following table: led color functi on description q uantity yellow pwr on when usb2 - h - 9002 - m is powered, configured and ready for use. 1 red txd activity flashes when data is transmit t ed from the usb2 - h - 9002 - m t o the attached rs232 or rs 485 device . one led for each uart channel 2 green rx d activity flashes when data is transmitted from the attached rs232 or rs 485 device to the usb2 - h - 9002 - m . one for each uart channel. 2 table 1 . 1 C led description 1.3 block diagram figure 1 . 2 usb2 - h - 9002 - m block diagram 1.3.1 block description usb standard b client connector usb b client connector this connector provides the interface for connection to a usb host or hub port. a standard a to 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 ft2232h ft2232h hi - speed usb 2.0 (480mb/s) is a dual seri al uart interface ic device. operatin g system device drivers are required in order to work with the ft2232h to provide the virtual com port serial functionality. f t d i f t 2 2 3 2 h h i - s p e e d u s b s e r i a l b r i d g e r s 4 8 5 l e v e l s h i f t e r u s b b c l i e n t c o n n e c t o r 3 p i n 5 m m t e r m i n a l b l o c k c h a n n e l 1 c h a n n e l 2 r s 4 8 5 l e v e l s h i f t e r 3 p i n 5 m m t e r m i n a l b l o c k r s 2 3 2 l e v e l s h i f t e r 9 p i n 5 m m t e r m i n a l b l o c k r s 2 3 2 l e v e l s h i f t e r 9 p i n 5 m m t e r m i n a l b l o c k s w i t c h c i r c u i t s w i t c h c i r c u i t
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 6 dual rs 485 level shifter the rs 485 level shifter converts the signals provided by the ft2232h into the voltage levels required by rs 485 devices. rs485 connectors t wo 3 p in 5mm t erminal b lock connector s provide the connection to rs 485 peripherals device s . these are cn5 for channel 1 and cn9 for channel 2 ( the rs485 and rs232 share the same gnd pin which is the middle pin of these co nnectors) . dual rs232 level shifter the rs232 level shifter converts the signals provided by the ft 2 232 h into the voltage levels required by rs232 devices. rs232 connector s two 8 p in 5mm t erminal b lock connector s provide the connection to rs 232 periphe rals device s . these are made up from 3 connectors cn2 , 3 and 4 for channel 1 and cn6 , 7 and 8 for channel 2 the rs232 and rs485 share the same gnd pin. s witching ci r cuit t he switching circuit configures which mode, rs232 or rs485, is set for each channel . the switches sw1 and sw2 also enable or disable certain functions. 1.4 features adds dual rs - 232 or rs - 485 serial port by connecting to a usb 2.0 hi - speed interface. rs - 485 echo and non - echo modes selection . rs - 485 termination on and termination off mode s election . easy plug & play installation and rs - 232/ rs - 485 device connection provide usb2.0 hi - speed(480mbps) interface and w orks 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 com port com port number can be changed to any available com port number, to support hyperterminal, or any other serial communications software applicat ion running in windows supports windows 7.0. server 2008, 2003, vista, xp , 2000, linux, mac os x fifo: 4 k byte transmit buffer, 4 k byte receive buffer rs - 485 data signals: data+ , data - , gnd rs - 232 data signals: txd, rxd, rts, cts, dtr, dsr, dcd, ri, gn d selectable +5vdc p ower source from usb port or external power adapter. ri pin can be configured to provide +5vdc output at 2 50ma . s et in rs232 mode , the s erial port operates up to 1mbps s et in rs485 mode , the s erial port operates up to 10 mbps
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 7 serial c ommunication parameters o parity: none, even, odd o data bits: 7, 8 o flow control: x - on/x - off, none (set in rs485 mode) o flow control: rts/cts , dtr/dsr, x - on/x - off, none (set in rs232 mode) leds indicate rxd, txd and power for monitoring port status. operat ing temperature of - 40c to +85c usb cable of 0.9 meter included fcc and ce approved (submitted for test at time of writing datasheet).
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 8 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 (300bps to 10 mbps ) through baud rate aliasing. see ftdi application note an_120 : aliasing baud rates rs232 interface standard windows baud rates (300bps to 921.6kbps) custom baud rates (300bps to 1mbps) through baud rate aliasing. see ftdi application note: an_120: aliasing baud rates table 1 . 2 - performance figures 1.6 ordering information part number description usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/ rs 485 a dapt o r with metal case table 1 . 3 - ordering information
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 9 2 installation 2.1 example applications and configurations 2.2 hardware configuration the usb2 - h - 9002 - m support s 2 serial channels. easy can be independently set as either rs232 or rs485. channel configuration is d one using switches sw1 and sw2 . various jumpers also allow power supply source and pull - up/pull - down termination resistors. s witch sw1 and sw2 settings t he default sw1 switch setting s enable rs485 mode . this can be changed as shown in the following table : sw1 position channel 1 configuration sw2 position channel 2 configuration open (off) closed (on) 1 1 rs232 mode rs485 mode 2 2 rs485 echo enabled rs485 echo disabled 3 3 120r termination resistor enabled 120r termination resistor disabled 4 4 5v out disable 5v out enable table 2 . 1 C s witch s etting configuration of the usb2 - h - 9002 - m the following gives a brief description of the sw1 and sw2 switches. m odes: the usb2 - h - 9002 - m can be configured as either an rs232 or rs485 serial interface . echo: w hen the serial interface is set to rs485, then echo can be enabled or disabled. termination : the usb2 - h - 9002 - m has a 120 ? termination resist o r which can be switched i n or out of the circuit when the channel is used in rs485 mode. 5v out: the ri pin of each channel can alternatively be used to output a +5v supply if the ri function is not required . this +5v supply is availa ble after the usb2 - h - 9002 is fully enumerated and device drivers are loaded.
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 10 jumper settings there are various jumpers on the adaptor pcb. these can be used to select the functions described in the following table : channel jumper connections made functi on 1 and 2 jp1 1 - 2 power supplied from usb hos t 5v 2 - 3 (default) power supplied from +5v power jack input. 1 jp2 connected (default) connects the +5v output onto the channel 1 ri output pin if the +5v has been enabled. requires position 4 of sw1 clo sed . not connected disconnects the +5v output onto the channel 1 ri output pin if the +5v has been enabled. jp3 connected (default) 750? pull - up bias resistor on channel 1 rs485 data + is connected in circuit not connected 750? pull - up bias resisto r on channel 1 rs485 data + is not connected in circuit jp4 connected (default) 750? pull - down bias resistor on channel 1 rs485 data - is connected in circuit not connected 750? pull - down bias resistor on channel 1 rs485 data - is not connected in cir cuit 2 jp5 connected (default) connects the +5v output onto the channel 2 ri output pin if the +5v has been enabled. requires position 4 of sw 2 closed . not connected disconnects the +5v output onto the channel 2 ri output pin if the +5v has been enable d. jp6 connected (default) 750? pull - up bias resistor on channel 2 rs485 data + is connected in circuit not connected 750? pull - up bias resistor on channel 2 rs485 data + is not connected in circuit jp7 connected (default) 750? pull - down bias resist or on channel 2 rs485 data - is connected in circuit not connected 750? pull - down bias resistor on channel 2 rs485 data - is not connected in circuit table 2 . 2 C jumper selection of usb2 - h - 900 2 - m
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 11 2.2.1 mounting the usb2 - h - 900 2 - m can be wall mounted using the mechanical metal brackets . this is shown in the following figure figure 2 . 1 - usb2 - h - 9002 - m brackets
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 12 2.3 device driver installation the usb2 - h - 9002 - m a daptor drivers are available for download from: http://www.easysync - ltd.com 2.3.1 microsoft windows with the device drivers being windows hardware quality labs (whql) certified, they are also available through downloa d directly from the microsoft ? windows ? update service. this is the best choice when connecting the usb2 - h - 9002 - m to a computer running windows. additional i nstallation options are noted below: installation executable on windows 1) login to your system as a dministrator, or a user with administrator rights. 2) prior to connecting the usb2 - h - 9002 - m 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 device drivers. 4) connect the usb2 - h - 9002 - m 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 . 2 - hardwa re 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 - 9002 - m to your usb host or hub. 2) the found new hardware wizard will appear. the first dialog should ask w hether it is acceptable to use the windows update service to find the device driver. figure 2 . 3 C found new hardware wizard 3) select one of the yes choices and click next. 4) the following screen appears :
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 13 figure 2 . 4 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, cli ck finish to complete the installation. figure 2 . 5 - complete hardware installation 7) steps 2 through 6 will repeat. the first time installs the basic usb serial converter in the usb device tree. the seco nd time installs the virtual com port layer in the ports tree and assigns the com port number. 8) steps 2 through 7 will repeat for the second channel of the usb2 - h - 9002 - m. 9) when both portions of the device driver have been installed successfully for both port s , the following message will appear, indicating that the device is ready. figure 2 . 6 - hardware ready
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 14 com port assignment next, to determine which com port has been assigned, open the windows device mana ger from the system control panel. figure 2 . 7 - 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 a ssignment. a nd dual additional easysync usb serial converter a , easysync usb serial converter b . figure 2 . 8 - com port assignment t o determine which com port has been assigned to converter a, b, t he cursor point to the usb serial port (com 10 ), (com 11 ), then right - click on it and select properties , it shows their relationship to the converter a, b. in the figure below, the converter a is assigned to com 10; converter b is assigned to com 11 .
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 15 figu re 2 . 9 C com port assignment and properties use this com port number with your application software in order to access the usb2 - h - 9002 - m . if an application requires use of a different com port number, th e assignment may be changed through the advanced driver options settings. from the above properties , click on the port settings tab. figure 2 . 10 - settings tab then click on the advanced button.
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 16 figure 2 . 11 - advanced options this will display the various advanced settings. note the com port assignment 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, windows ce device drivers and ftdi installation guides for mac os x, linux and windows ce are availab le for download on the easysync web sites. follow the respective ftdi installation guides for the chosen operating system.
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 17 3 connections 3.1 external connectors 3.1.1 usb the usb2 - h - 9002 - m i s a downstream usb 2.0 device and is connected via a standard usb - b client c onnector to an upstream usb host or hub. pin number pin type description 1 power vbus C usb power provided from upstream usb host or hub 2 bidirectional d C = usb data signal, negative polarity 3 bidirectional d+ = usb data signal, positive polarity 4 ground gnd = usb signal ground shield case ground drain = typically connected to the host pc case table 3 . 1 C usb b receptacle pin - out 3.1.2 rs 232 connections each rs232 port is connected through a 5mm termina l block connector. this is shown in the following table: terminal block pin number (c hannel 1 and channel 2 ) pin type description 1 output txd = transmit data 2 input rxd = receive data 3 output rts = request to send 4 input cts = clear to send 5 ou tput dtr = data terminal ready 6 input dsr = data set ready 7 input dcd = data carrier detect 8 input or pwr output ri = ring indicator or +5v d c output 9 ground gnd = rs232 signal ground table 3 . 2 C conn ections required for rs232 serial interface in addition, ri pin can provide +5vdc to an external device with a maximum current draw of 2 50ma once the usb2 - h - 9002 - m has been enumerated by the system.
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 18 3.1.3 rs 485 connections each rs485 port is connected through a 5mm terminal block connector. this is shown in the following table: terminal block pin number (c hannel 1 and channel 2 ) pin type description 8 input or pwr output can be configured as pwr = +5v dc output depending on sw settings and jumper settings 9 gnd gnd 10 input/ output d ata+ 11 input/ output data - table 3 . 3 C connector of rs 485 pin - out
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 19 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*** 100 1 50 ma ***does not include power supplied to external device when ri/pwd pin is configured for +5v output table 4 . 1 - usb electrical details 4.2 rs 232 parameter description minimum typical maximum units conditions v trans transmitter output voltage swing 5 v rl = 3k v rec receiver input voltage range 2.4 25 v input resistance = 3k to 7k esd hbm 15 kv rs - 232 inputs and outputs table 4 . 2 - rs232 electrical details 4.3 psu input parameter description minimum typic al maximum units conditions vin power supply input 5.0 v maximum of 1a table 4 . 3 C psu input details
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 20 4.4 rs 485 parameter description minimum typical maximum units conditions receiver input vcm common - mod e input voltage range - 7 +12 v in input current 1.0 ma vin = +12v - 0.8 vin = - 7v 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 - 485 inputs and outputs 8 kv en61000 - 4 - 2airgapdischarge rs - 485 inputs and outputs 15 kv table 4 . 4 C rs 485 electrical details 4.5 power output the usb2 - h - 9002 - m assign s ri /pwr pin of rs232 interface (but can also be used in r s 485 mode) to provide +5v dc for an external device that requires power. the maximum allowable current that can be supplied from the usb bus is 500ma, including the circuitry of the usb2 - h - 9002 - m itself. up to 2 50ma (total on 2 ports) may be used by the external device s . parameter description min imum typical maximum units conditions i o output power current 0 2 50 ma total available current for 2 ports table 4 . 5 - power output option
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 21 5 mechanical details table 5 . 1 - usb2 - h - 9002 - m case dimensions - top
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 22 table 5 . 2 - usb2 - h - 9002 - m case dimensions - top
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 23 6 physical environment details 6.1 storage parameter de scription 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 oper ating temperature range C 40 +85 o c 5% to 95% rh, non condensing table 6 . 2 - operating temperature
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 24 7 environmental approvals & declarations 7.1 emi compatibility fcc and ce the usb2 - h - 9002 - m 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 measures. note: this e quipment 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 installation. this equ ipment 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 pa rticular 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 or more of the followin g 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 experienc ed radio/tv technician for help. 7.2 safety the usb2 - h - 9002 - m is d efine d as limited power supply (lps) device, with operating voltages under 60vdc . 7.3 environmental the usb2 - h - 9002 - m is a lead - free device that complies with the following environmental directives : rohs, weee, reach, pfos and decabde. 7.4 reliability the usb2 - h - 9002 - m 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 _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 25 7.5 import / export information import / export information country of origin china harmonized code 8471.80.1000 product description usb to rs232/ rs 485 computer adapter, dual port s usa eccn ear99 C no license required table 7 . 1 - import / export information
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 26 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 - compute r power ed 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 de vice 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 equi valent. - 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. rs232 cables C check the following: - output signals (txd, rts, dtr) are connected to th e respective inputs (rxd, cts, dsr) in each direction. - check for specific handshake requirements of your rs232 peripheral. - if handshake signals are note used, ensure the application is set to no hardware handshake, or equivalent. test the port with a l oop - back connector. connect txd to rxd, rts to cts and dtr to dsr. 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 htt p://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 drivers. see the ftdi installation guides for additional details: http://ftdichip.com/ftdocuments.h tm common windows device driver troubles: device times out : the default settings of the device driver assume typical data transfers of hundreds to thousands or more bytes at a given time. some applications, such as a gps device, only send data in short pa ckets, 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 2.1 2 . the buffer size c an 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 fin d 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
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 27 uncheck the serial enumerator option, also found on the advanced driver options screen in figure 2.1 1 . com port in use: windows keeps t rack of all com port assignments. if multiple easysync products have been connected to a single system, the com port number will increase, even if the other devices are not attached. if the h i gh er com port assignments are not acceptable for the applicati on, known unused com port numbers should be uninstalled according to the ftdi installation guide: http://ftdichip.com/ftdocuments.htm 8.3 technical support technical support may be obtained from your nearest easysync office . see details below.
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 28 9 contact info rmation head office C glasgow, uk easysync limited 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 branch office C hillsboro, oregon, usa easysync limited (usa) 7235 nw evergreen parkway, suite 600 hillsboro, 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 - mail (general inquiries) admin@easysync - ltd.com web site url http://easysync - ltd.com web shop url http://easysync - ltd.com
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 29 appendix a - list of figures and tables list of figures figure 1.1 usb2 - h - 9 00 2 - m ................................ ................................ ......................... 4 figure 1.2 usb2 - h - 9002 - m block diagram ................................ ................................ . 5 figure 2.1 - usb2 - h - 9002 - m brackets ................................ ................................ ...... 11 figure 2.2 - hard ware ready ................................ ................................ .................... 12 figure 2.3 C found new hardware wizard ................................ ............................... 12 figure 2.4 C automatic install ................................ ................................ .................. 13 figure 2.5 - complete hardware installation ................................ ............................ 13 figure 2. 6 - hardware ready ................................ ................................ .................... 13 figure 2.7 - device manager ................................ ................................ ..................... 14 figure 2.8 - com port assignment ................................ ................................ ............ 14 figure 2.9 C com port assignment and properties ................................ ................... 15 figure 2.10 - settings tab ................................ ................................ ........................ 15 figure 2.11 - advanced options ................................ ................................ ................ 16 list of tables table 1.1 C l ed description ................................ ................................ ........................ 5 table 1.2 - performance figures ................................ ................................ ................. 8 table 1.3 - ordering information ................................ ................................ ................ 8 table 2.1 C switch setting configuration of the usb2 - h - 9002 - m ............................... 9 table 2.2 C jumper selection of usb2 - h - 900 2 - m ................................ ...................... 10 table 3.1 C usb b receptacle pin - out ................................ ................................ ..... 17 table 3.2 C connections required for rs232 serial interface ................................ .... 17 table 3.3 C connector of rs 485 pin - out ................................ ................................ ... 18 table 4.1 - usb electrical details ................................ ................................ .............. 19 table 4.2 - rs232 electrical details ................................ ................................ .......... 19 table 4.3 C psu input details ................................ ................................ ................... 19 table 4.4 C rs485 elect rical details ................................ ................................ ......... 20 table 4.5 - power output option ................................ ................................ .............. 20 table 5.1 - usb2 - h - 9002 - m case dimensions - top ................................ .................. 21 table 5.2 - usb2 - h - 9002 - m case dimensions - top ................................ .................. 22 table 6.1 - storage temperature ................................ ................................ .............. 23 table 6.2 - operating temperature ................................ ................................ .......... 23 table 7.1 - import / export information ................................ ................................ .. 25
document reference no.: es _000046 usb2 - h - 9002 - m hi - speed usb to 2 - port rs232/rs485 adapter data sheet version 1.0 clearance no.: es #33 ?2010 easysync ltd. 30 appendix b - revision history version draft first external draft for comment 20 10 - 0 2 - 15 version 1.0 first external r elease 20 10 - 0 6 - 15
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