part no. 2000000290 4th edition printed in taiwan oct 1998 adam and the adam logo are trademarks of advantech. ADAM-4520/4522 rs-232 to rs-422/485 converter s e r i a l c o m m u n i c a t i o n i n t e r f a c e f o r i n d u s t r i a l a u t o m a t i o n s e r i a l c o m m u n i c a t i o n i n t e r f a c e f o r i n d u s t r i a l a u t o m a t i o n s e r i a l c o m m u n i c a t i o n i n t e r f a c e f o r i n d u s t r i a l a u t o m a t i o n s e r i a l c o m m u n i c a t i o n i n t e r f a c e f o r i n d u s t r i a l a u t o m a t i o n s e r i a l c o m m u n i c a t i o n i n t e r f a c e f o r i n d u s t r i a l a u t o m a t i o n adam-4510/4510s rs-422/485 repeater tough industrial design you can power the adam-4510/4510s and adam- 4520/4522 with any unregulated power source between +10 and +30 v dc . their industrial-grade plastic shells can be mounted on a din-rail, panel or in a piggybacked stack. you make signal connections through plug- in screw terminal blocks, guaranteeing easy installation, maintenance and modification features ? automatic internal rs-485 bus supervision ? no external flow control signals required for rs-485 ? minimum 3000 v dc isolation protection (adam-4510s/4520 only) ? transient suppression on rs-485 data lines ? baudrate up to 115.2 kbps ? networking up to 4000 feet ? reserved space for termination resistors ? power and data flow indicator for troubleshoot- ing ? power requirement: +10 to +30 v dc ? mounts easily on din-rail or panel specifications common ? power requirement : unregulated +10 to +30 v dc with protection from power reversals ? case : abs with captive mounting hardware ? accessories (supplied) : nylon din-rail mounting adapter secc panel mounting bracket ? plug-in screw terminal wiring : accepts awg 1-#12 to #22 (0.5 to 2.5 mm) wires adam-4510/4510s specifications ? baudrate (bps) : 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k, rs-422 (switchable) ? isolation voltage: 3000 v dc (4510s only) introduction most industrial computer systems come with rs- 232 serial ports as standard. though widely accepted, rs-232 has limited transmission speed, range and networking capabilities. the rs-422 and rs-485 standards overcome these limitations by using differential voltage lines for data and control signals. the ADAM-4520/4522 converter lets you take advantage of rs-422 and rs-485 on systems originally equipped with rs-232. it transparently converts rs-232 signals into isolated rs-422 or rs-485 signals. you don't need to change your pc's hardware or your software. the ADAM-4520/4522 lets you easily build an industrial grade, long distance communication system with standard pc hardware. the adam-4510/4510s repeater simply amplifies, or boosts, existing rs-485 signals to enable them to cover longer distances. it extends the communication distance by 4000 ft (1200 m) or extends the number of connected nodes by 32. intelligent rs-485 control the rs-485 standard supports half-duplex communication. this means that just two wires are needed to both transmit and receive data. handshak- ing signals (such as rts, request to send) are normally used to control the direction of the data flow. a special i/o circuit in the adam-4510/4510s and ADAM-4520/4522 automatically senses the direction of the data flow and switches the transmission direction. no handshaking signals are necessaryyou can build an rs-485 network with just two wires. this rs-485 control is completely transparent to the user. software written for half-duplex rs-232 works without modification. isolation (adam-4510s/4520 only) the adam-4510s/4520's opto-isolators provide 3000 v dc of isolation to protect the host computer from ground loops and destructive voltage spikes on the rs-422/485 data lines. surge protection (rs-485 only) adam-4510/4510s and ADAM-4520/4522 offer internal surge-protection on their data lines. internal high speed transient suppressors on each data line protect the modules from dangerous voltages levels or spikes.
? rs-422/rs-485 interface connector : plug-in screw terminal ? power consumption : 1 w maximum ADAM-4520/4522 specifications ? baudrate (bps) : 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k, rts control and rs-422 mode (switchable) ? isolation voltage : 3000 v dc (4520 only) ? rs-232 interface connector : female db-9 ? rs-422/rs-485 interface connector : plug-in screw terminal ? power consumption : 1.2 w maximum operating environment ? operating temperature : -10 ~ 70 o c (14 ~ 158 o f) ? storage temperature : -25 ~ 85 o c (-13 ~ 185 o f) ? humidity : 5 ~ 95%, non-condensing function diagrams installation initial inspection we carefully inspected the adam-4510/4510s and 4520/4522 modules both mechanically and electrically before we shipped them. they should be free of marks and scratches and in perfect order on receipt. as you unpack the modules, check them for signs of shipping damage (damaged box, scratches, dents, etc.). if it is damaged or fails to meet our specifications, notify our service department or your local sales representative immediately. also, call the carrier immediately and retain the shipping carton and packing material for inspection by the carrier. we will then make arrangements to repair or replace the unit. switch and jumper settings switch settings dip switches or jumpers (4522 only) in the adam adam-4510/4510s/4520/4522 user's manual adam-4510 repeater function diagram communication controller rs-422/ rs-485 receiver/ driver direction control logic data data on 1.8432 mhz osc baud rate settin g (sw2) data format settin g (sw1) data0 + data0 - rx0 + rx0 - tx0 + tx0 - rs-485 rs-422 gnd gnd data opto-coupled isolation rs-422/ rs-485 receiver/ driver data1 + data1 - tx1 + tx1 - rx1 + rx1 - rs-485 rs-422 gnd gnd rect & filter power converter power input +10 ~ +30 v +5 v p.s. +5 v gnd power isolation communication controller rs-422/ rs-485 receiver/ driver rs-422/ rs-485 receiver/ driver direction control logic data data on 1.8432 mhz osc baud rate settin g (sw2) data format settin g (sw1) data0 + data0 - rx0 + rx0 - tx0 + tx0 - rs-485 rs-422 data1 + data1 - tx1 + tx1 - rx1 + rx1 - rs-485 rs-422 rect & filter power converter power input +10 ~ +30 v +5 v gnd gnd gnd gnd ADAM-4520 converter function diagram adam-4510s repeater function diagram communication controller rs-422/ rs-485 receiver/ driver direction control logic data data 1.8432 mhz osc baud rate setting (j2) data format setting (j1) data1 + data1 - tx1 + tx1 - rx1 + rx1 - rs-485 rs-422 rs-232 receiver/ driver txd rxd rts gnd gnd gnd rect & filter power converter power input +10 ~ +30 v +5 v adam-4522 converter function diagram communication controller rs-422/ rs-485 receiver/ driver direction control logic data data on 1.8432 mhz osc baud rate setting (sw2) data format setting (sw1) data1 + data1 - tx1 + tx1 - rx1 + rx1 - rs-485 rs-422 rect & filter power converter power input +10 ~ +30 v +5 v rs-232 receiver/ driver opto-coupled isolation txd rxd rts gnd p.s. +5 v gnd power isolation gnd gnd
converter and repeater modules set the data format (number of bits) and baudrate for the adam network. you can configure the other modules in the network via software commands. your program and the pc's serial port should match the settings of the converter and repeater modules. sw1 switch 1 controls the data format. data can be 9, 10, 11 or 12 bits. the factory default is 10 bits: one start bit, eight data bits, no parity bit and one stop bit. when using the converter in combination with other adam modules, do not change the default setting as adam modules have a fixed data format of ten data bits. the option of changing to 9, 11 or 12 bits is for use with other modules (other than adam modules) that have different data formats. should you change the data format, be aware that you will have to change the data format settings on all the other modules in the network. sw2 switch 2 sets the baudrate. the options range from 1200 bps to 115.2 kbps. the factory default is 9600 bps. be aware that when you change the baudrate, you have to change the baudrate for all the connected modules accordingly. if the rs-422 mode is on, the baudrate doesn't need to be set. default settings since neither module is addressable by the host computer, the baud rate and data format must be set using sw1 and sw2 located inside the module. the default settings are: default settings for both modules function setting baud rate 9600 bps data format 10 bits adam-4510/4510s rs-422/rs-485 repeater module the following tables illustrate the switch settings for the repeater module. adam-4510/4510s data format settings (sw1) data format 1 2 9 bits ?? 10 bits l ? 11 bits ? l 12 bits ll ? = open l = closed * = default * adam-4510/4510s baud rate settings (sw2) baud rate 1 2 3456789 1200 bps l ???????? 2400 bps ? l ??????? 4800 bps ?? l ?????? 9600 bps ??? l ????? 19.2 kbps ???? l ???? 38.4 kbps ????? l ??? 57.6 kbps ?????? l ?? 115.2 kbps ??????? l ? rs-422 ???????? l ? = open l = closed * = default ADAM-4520/4522 rs-232/rs-485 converter module the following tables illustrate the switch settings for the converter module. ADAM-4520/4522 data format settings (sw1) data format 1 2 9 bits ?? 10 bits l ? 11 bits ? l 12 bits ll ? = open l = closed * = default ADAM-4520/4522 baud rate settings (sw2) baud rate 1 2 3 4 5 6 7 8 9 10 rts control l ????????? 1200 bps ? l ???????? 2400 bps ?? l ??????? 4800 bps ??? l ?????? 9600 bps ???? l ????? 19.2 kbps ????? l ???? 38.4 kbps ?????? l ??? 57.6 kbps ??????? l ?? 115.2 kbps ???????? l ? rs-422 ????????? l ? = open l = closed * = default adam-4510/4510s/4520/4522 user's manual * * * *
data + data - rx + rx - tx + tx - data + data - tx + tx - rx + rx - rs-485 device rs-422 device txd (2) rxd (3) rts (7) gnd (5) rxd (2) txd (3) rts (7) gnd (5) host db-9 female connector rs-232 power supply for the ease of use in industrial environments the adam modules are designed to accept industry standard +24 v dc unregulated power. operation is guaranteed when using any power supply between +10 and +30 v dc . power ripples must be limited to 200 mv peak to peak while the voltage in all cases must be maintained between +10 and +30 v dc . all power supply specifications are referenced at module connector. the power cables should be selected according to the number of modules connected and the length of the power lines. when using a network with long cables, we advise the use of thicker wire to limit the line voltage drop. in addition to serious voltage drops, long voltage lines can also cause interference with communication wires. - + power supply +10~30 v (g) data- (r) +vs (b) gnd 10 we advise that the following standard colors (as indicated on the modules) be used for power lines: +vs (r) red gnd (b) black adam-4510/4510s/4520/4522 user's manual communication wiring we recommend that shielded-twisted-pair cables that comply with the eia rs-485 standard be used with the adam network to reduce interference. only one set of twisted-pair cables is required to transmit both data and rts signals. we advise that the following standard colors (as indicated on the modules) be used for the communication lines: data + (y) yellow data - (g) green basic configuration hook-up before placing a module in an existing network, the module should be properly configured. the two following diagrams show typical layouts for both modules. ADAM-4520/4522 converter connection diagram adam-4510/4510s repeater connection diagram data + data - tx + tx - rx + rx - data0 + data0 - rx0 + rx0 - tx0 + tx0 - rs-485 device rs-422 host data + data - rx + rx - tx + tx - data1 + data1 - tx1 + tx1 - rx1 + rx1 - rs-485 device rs-422 slave + -
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