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zulu m zulu m zulu m zulu m d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 radio modem module radio modem module radio modem module radio modem module applications applications applications applications ? ? remote networking ? usb/rs232 cable replacement ? ? remote data log ? ? meter reading the zulu modem module is a highly integrated rf mod em and intelligent controller with simple interface to achieve a wireless serial data link for data (upto 38k4bps) over 2km range. the user interface is standard rs232 style control operating at low voltage. all rf op- eration is automatically controlled (with error che cking etc) so the zulu can be treated as a simple communications device. possible applications include one-to-one and multi- node wireless links in applications in- cluding car and building security, epos, inventory tracking, remote industrial process monitoring and computer networking. because of thei r small size and low power re- quirements this module is ideal for use in portable , battery-powered applications such as hand-held terminals. part no part no part no part no description description description description ZULU-M868 radio telemetry module dip package ZULU-M868-so radio telemetry module smt package features features features features ? intelligent rf modem module ? serial data interface with handshake ? host data rates up to 38,400 baud ? rf data rates to 56kbps ? ? range up to 2,000 metres ? ? minimal external components ? direct led drive shows data flow ? 8 user selectable channels ? ? secure data protocol ? ? ultra low power 2.2 - 3.6v operation ? ? ce compliant for licence free use ? ? 868mhz or 915mhz versions ? ? 100mw transmit power (+13dbm) ? ? receiver sensitivity C116dbm
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 pinout pinout pinout pinout pin description pin description pin description pin description pin no pin no pin no pin no name name name name direction direction direction direction description description description description 1 ant in antenna input / output 50ohm impedance 2, 15 gnd in connect to ground 3-5, 11, 13-14, 20-24 n/c n/a unused leave disconnected. 6 rx in (low level rs232) data in 7 tx out low level rs232 data out 8 link in connect to link on pin 28 9 cts out low level rs232 cts 10 rts in low level rs232 rts 12 reset in device reset input (tie high via 10k r esistor) 16 vcc in +2.2-3.6v 17-18 dr1-dr2 in host data rate selection. 19 wre in when high configuration data is held in eeprom. when low configuration data is held in volatile mem ory and lost on power cycle. 25 pd in power down mode. take low to enter sleep m ode 26 tx led out rf tx led indicator 27 rx led out rf rx led indicator 28 link out connect to link on pin 8 29-30 xtal1-2 in connect 30mhz xtal here to drive rf circuit
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 pin descriptions: pin descriptions: pin descriptions: pin descriptions: rx, tx rx, tx rx, tx rx, tx this is the data input / output. data is transmitte d and received at the low voltage level (dependant on vcc being used). serial data format serial data format serial data format serial data format baud rate: defined by dr1 and dr2 pins data bits: 8 parity: none stop bits: 1 flow control: hardware cts / rts cts, rts cts, rts cts, rts cts, rts clear to send and request to send are standard data flow control as use in rs232 systems, these are standard but operate at the zulu vcc low level voltage. reset reset reset reset connection to gnd resets the zulu module. zulu mode m starts up when this input is taken from gnd to vcc. normal operation: connect to vcc through a 10kohm r esistor vcc: vcc: vcc: vcc: supply voltage (2.23.6v) dr1 dr1 dr1 dr1 - -- - dr2 dr2 dr2 dr2 these inputs define the host interface baud rate. t hey are read when reset pin goes high. tip: it is good practice to operate the host interf ace at half the speed of the rf data rate (set by register r5 pd pdpd pd this input enables sleep mode. for normal operati on connect to vcc. no rf packets will be received by the module when it is in sleep mode. wre wre wre wre controls where the user configuration parameters ar e saved in eeprom (non-volatile) or ram (volatile) un-used. tx / rx led tx / rx led tx / rx led tx / rx led direct led drive which operates whenever there is r f activity. xtal1, xtal2 xtal1, xtal2 xtal1, xtal2 xtal1, xtal2 the zulu module requires a 30mhz drive crystal to b e connected between xtal1-2 any standard crystal +/-10ppm ~20pf such as fec 18 4-2247. dr1 dr1 dr1 dr1 dr2 dr2 dr2 dr2 host baud rate host baud rate host baud rate host baud rate open open 4,800 fitted open 9,600 open fitted 19,200 fitted fitted 38,400
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 operation overview operation overview operation overview operation overview the zulu modem module provides a simple modem inter face to the host controller. it han- dles all rf data communications automatically and w ithout any requirement from the user (rf packetising , preamble, encoding, crc check etc). with this powerful high-speed radio link. the follo wing networks can be realised; one one one one- -- -to toto to- -- -one operation; one operation; one operation; one operation; for point to point data communicatio n one one one one- -- -to toto to- -- -many many many many; a network consisting a master and many slaves (the receivers all have the same address) many many many many- -- -to toto to- -- -one; one; one; one; where the transmitters all send to a single re ceiver address. because each zulu modem can contain a unique addres s, multiple zulu networks can co- exist in the same area. broadcast operation; broadcast operation; broadcast operation; broadcast operation; where a single master zulu mod em addresses many zulu modems concurrently. (using many zulu modem modules set to the same address), operating modes operating modes operating modes operating modes configuration mode: configuration mode: configuration mode: configuration mode: in configuration mode the zulu modem can receive a number of com- mands and the internal registers can be preset to c ontrol its operation. in this mode the zulu modem is offline and cannot send or receive rf da ta. normal operation : normal operation : normal operation : normal operation : zulu modem is online automatic ally transmitting and receiving data from its host and across the rf network. each zulu modem has its own preset address. this is user set during configuration. any data received is examined and the address header em bedded within the data packet is com- pared with its address. only data received with mat ching address will be processed and out- put to the host, all other data will be discarded. all zulu modem modules are shipped with a default a ddress of 7e7e7e. the zulu modem contains an on-board data buffer equ al to two data packets. therefore if rts is asserted (then the host is unable to receive data) the module will store a max of two data packets, all further data packets received wil l be discarded.
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 configuration mode (offline) configuration mode (offline) configuration mode (offline) configuration mode (offline) commands can be set using a standard terminal progr am or by sending the relevant ascii characters. each command must be followed by the carriage retur n or enter each command must be followed by the carriage retur n or enter each command must be followed by the carriage retur n or enter each command must be followed by the carriage retur n or enter note all commands are entered in upper case note all commands are entered in upper case note all commands are entered in upper case note all commands are entered in upper case command command command command description description description description +++ enter configuration mode ? retrieve the current register values f set factory default; r1=7f7f7f r2=7f7f7f r3 = 3 r4 = 7 r5 = 1 h help s save configuration q exit configuration mode and return to online mode response from zulu response from zulu response from zulu response from zulu zulu responds with status info zulu responds with all register values ok brief description of commands available saved no response p ping mode this sends a ping request . on receiving, the recipient zulu mo- dem will respond with its address and the level of rssi (received signal strength) the ping command is continuously repeated every 1 second until any command or character is entered. the originating zulu modem will re- spond with the recipient zulu modems response, eg. received from 7f7f7f (d5) where 7f7f7f = the recipient address d5= rssi rssi rssi rssi rssi is a hex value corresponding to the received signal strength min = 20hex max =e0hex
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 register setting (configuration mode) register setting (configuration mode) register setting (configuration mode) register setting (configuration mode) the internal registers enable various parameters to be controlled. to set a register type r#=x where # is the regist er number (1-6) and x is the value to set for example to set the channel to channel 3 you wou ld type the following. r3=3 (where is carriage return or enter o n the keyboard) the modem will then return ok or error if an in correct command is entered. one you have set the register values you must save the changes by typing s the modem will return with saved register register register register value range value range value range value range description description description description example example example example r1 0000 - ffff (24 bit address) sets the recipient zulu modem address r1=0001 (data sent is addressed to zulu modem with address 0001) r2 0000 - ffff (24 bit address) set own zulu modem ad- dress r2=f001 (data sent is from zulu modem with address f001) r3 ch 1-8 set rf channel r3=2 (transmit on channel 2) r4 0 = -8dbm 1 = -5dbm 2 = -2dbm 3 = +1dbm 4 = +4dbm 5 = +7dbm 6 = +10dbm 7 = +13dbm set the rf transmit power output r4=7 (sets transmit power to max)* r5 0 = 9,600 1 = 19,200 2 = 28,800 3 = 56,000 set the rf baud rate r5=3 (sets the rf data rate to 56kbps) tip!: tip!: tip!: tip!: the lower the rd data rate the longer the achievable range! *note : reducing tx power reduces battery consumpti on!
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 application circuit application circuit application circuit application circuit connection of the zulu modem to an rs232 or usb host terminal device such as a p c serial port may easily be achieved using the application s chematic below. the 9 way d socket (j1) provides the standard pin out required to connect directly to the serial port of any std pc using a 9 way male/female cable. the max3232 (a low voltage rs232 line driver) provides level conversion between the rs232 levels on the serial port and the logic levels pins of the zulu modem module. alternatively the same can be achieved using the zu lu eval boards
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 range range range range the antenna choice and position directly controls t he system range. keep it clear of other metal in the system. the best position by far, is p rotruding vertically from the top of the prod- uct. this is often not desirable for practical reas ons and thus a compromise may be needed. note that the space around the antenna is as import ant as the antenna itself. all radio sys- tems are dependant on a radio signal being received through airspace. the range quoted is the optimal in direct line of s ight without obstacles and in good atmos- pheric conditions. range is affected by many things, for example local environmental conditions, atmospheric conditions, interference from other radio transmitt ers. for evaluating the local environment please see our rf meter (ds006) in very worse case applications the range quoted ma y be reduced below 30% of the optimal range stated. mechanical dimensions mechanical dimensions mechanical dimensions mechanical dimensions recommended antenna recommended antenna recommended antenna recommended antenna the bead antenna provides a miniature pcb mounting solution where a high performance is required from a small s pace . available as straight or 90 degree mount this anten na is a gen- eral purpose omni-directional. it measures 8.5mm lo ng, dia 7. please see datasheet ant-bead-868
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 technical specifications technical specifications technical specifications technical specifications absolute maximums absolute maximums absolute maximums absolute maximums : :: : temperature range temperature range temperature range temperature range: storage C50 to +125 o c. dc characteristics dc characteristics dc characteristics dc characteristics parameter parameter parameter parameter min min min min max max max max units units units units supply voltage -0.3 3.6 v voltage on any input -0.3 vcc+0. v max input power (thro antenna) +10 dbm parameter parameter parameter parameter min min min min typical typical typical typical max max max max units units units units supply voltage 2.2 3.6 v operating temperature -40 +85 o c zulu tx supply current: when transmitting when sleeping 100 1 ma ua zulu rx supply current: when receiving when sleeping 18.5 1 ma ua ac characteristics ac characteristics ac characteristics ac characteristics parameter parameter parameter parameter min min min min typical typical typical typical max max max max units units units units operating frequency 848 888 mhz operating temperature -40 +85 o c zulu tx output power +20 dbm zulu txrx fsk raw rf data rate 256 kbps zulu rx sensitivity -116 dbm
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 intentionally blank
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 zulu evaluation board zulu evaluation board zulu evaluation board zulu evaluation board features features features features ? ? easy assemble projects; ? watchdog feature ? ? direct antenna connection ? 9-12vdc power in screw term ? led indication of ? power ? transmit / receiver ? rf error ? ? all thro hole components zulu telemetry zulu telemetry zulu telemetry zulu telemetry ? 10 channel telemetry ? 10 led outputs ? 2 analogue rf links ? 2 analogue outputs zulu modem zulu modem zulu modem zulu modem ? rs232 modem ? usb modem the zulu eval boards provide a ready made platform which can be used to build several projects which demonstrate the capabi lities of zulu modules providing ready made telemetry and modem solutions. the evaluation boards are sold as a tx and rx pcb p air, ready for component population. schematics are shown below, not all components are fitted for each of the projects. part no part no part no part no description description description description zulu-eval tx and rx pcb pair psu-12v1-uk plugtop power supply 12v 100ma
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 zulu evaluation board transmitter schematic zulu evaluation board transmitter schematic zulu evaluation board transmitter schematic zulu evaluation board transmitter schematic
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 zulu evaluation board transmitter pcb layout zulu evaluation board transmitter pcb layout zulu evaluation board transmitter pcb layout zulu evaluation board transmitter pcb layout qty reference part name description farnell part 1 ant1 ant_scrtm4ra,antenna fec109-6142 6 c1-6 cap_254mm_rad,100n fec114-1775 2 c7,9 cap-254-th fec171-2584 1 c8 cap-254-th fec969-3238 4 c10-13 cap_254mm_rad,100n fec114-1775 1 c14 cap_254mm_rad,1u fec969-3238 1 c15 cap_254mm_rad,33pf fec114-1761 1 c16 cap_254mm_rad,100pf fec114-1775 1 c17 cap_254mm_rad,2.2uf fec184-8563 2 c18-19 cap_254mm_rad,10pf fec114-1756 2 d1,d3 led3mm-th,red light emitting diod e fec100-3390 1 d2 led3mm-th,green light emitting di ode fec100-3199 1 d4 1n4007-do-41 fec165-1091 1 ic1 lm3940it-3.3-to-220 fec949-4553 1 ic2 ft232rl-ssop-28 fec114-6032 1 j1 dcon9f 9 pin d-type fema le fec109-9294 4 lk1-4 header-1x2pin 1 x 2 pin header, 0 .1" centers fec182-2168 2 lk5-6 sip-3p 1 x 3 pin header fec182-2168 2 lk10-11 header_8_2x4_th 2 x 2 pin header fec124-8134 1 m1 zulu-m or zulu-t 1 m2 max232-pdip-16 max232 rs 232 dri ver ic fec938-6904 1 r1-2 res-1/4w,2k2 res body:100 centers: 500 fec934-1536 11 r3-12,15 res-1/4w,10k res body:100 cen ters:500 fec934-1110 3 r16-18 res-1/4w,360r res body:100 center s:500 fec934-1790 10 s1-10 lrn_btn_th 1 s13 lrn_btn_th 1 sk1 usb_"b"_con_th,usb usb 'b' con. 3 tb1-3 scr_ter2w 2 way screw terminal 5mm pitch 2 vr1-2 vres-top-adj-th-3306f 10kr fec168-9 844 1 y1 xtal1,30mhz 30mhz fec1 84-2247
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 zulu evaluation board receiver schematic zulu evaluation board receiver schematic zulu evaluation board receiver schematic zulu evaluation board receiver schematic
zulu modem zulu modem zulu modem zulu modem d dd ds ss s- -- -z zz zu uu ul ll lu uu u m mm mo oo od dd de ee em mm m- -- -1 11 1 zulu evaluation board receiver pcb layout zulu evaluation board receiver pcb layout zulu evaluation board receiver pcb layout zulu evaluation board receiver pcb layout qty reference part name description farnell part 1 ant1 scrtm4ra antenna mount fec109-6142 11 c1-6,c10-13,c16 cap-1ufx7r 0.1uf, 25v fec114-1775 2 c7,9 cap-47uf25v-el 47uf, 25vdc fec171-25 84 1 c8,14 cap-1uf250v-el 1uf 35v fec969-3238 1 c15 cap-33pf-cer 33pf fec114-1761 1 c17 cap-2uf2-160vel 2.2uf fec184-856 3 2 c18-19 cap-10pf-cera 10pf fec114-1756 13 d1-10, 14-15 led3lp-grn led fec100-3199 1 d13 led-3-lp-red led fec100-3390 1 d16 1n4007 fec165-1091 1 ic1 lm3940it-3.3-to-220 fec949-4553 1 ic2 ic-rt232rl ft232rl-ssop-28 fec114 -6032 1 j7 con-db9f 9 pin d-type female fec109-9 294 4 lk1-4 header-1x2pin 1 x 2 pin header, 0.1" cen- ters fec182-2168 1 lk5 sip-3p 1 x 3 pin header fec182-2168 1 lk10-11 header_8_2x4_th 2 x 2 pin header fec124-8134 1 m1 zulu-m or zulu-t 1 m2 max232-pdip-16 max232 rs 232 dri ver ic fec938-6904 1 q1-2 tip122 npn darlington,to220 ab fec980-4021 3 r1-3 res-fr4-10k-1 10k fec934-1110 13 r4-13, 16-18 res-1/4w,360r 360r fec934-1790 1 s1 lrn_btn_th learn button 1 sk1 usb_"b"_con_th,usb usb 'b' con. 3 tb1-3 scr_ter2w 2 way screw termina l 5mm pitch 1 y1 xtal1,30mhz crystal fec184224 7 fec184-2247
zulu modem zulu modem zulu modem zulu modem whilst the information in this document is believed to be correct at the time of issue, rf solutions l td does not accept any liability whatsoever for its accuracy, adequacy or completeness. no express or implied war ranty or representation is given relating to the in formation contained in this document. rf solutions ltd reserves the right to make changes and improvements to the product(s) described herein without notice. buyers and other users should determine for them- selves the suitability of any such information or p roducts for their own particular requirements or sp ecification(s). rf solutions ltd shall not be liab le for any loss or damage caused as a result of users own determin ation of how to deploy or use rf solutions ltds pr oducts. use of rf solutions ltd products or compon ents in life support and/or safety applications is not a uthorised except with express written approval. no licences are created, implicitly or otherwise, unde r any of rf solutions ltds intellectual property rights. liabi lity for loss or damage resulting or caused by reli ance on the information contained herein or from th e use of the product (including liability resulting from neglige nce or where rf solutions ltd was aware of the poss ibility of such loss or damage arising) is excluded . this will not operate to limit or restrict rf solutions ltds lia bility for death or personal injury resulting from its negligence. reader response reader response reader response reader response it is our intention to provide you with the best do cumentation possible to ensure successful use of your rf solutions product. if you wish to provide your comments on organizatio n, clarity, subject matter, and ways in which our documentation can better serve you, pleas e email us your comments to the tech- nical publications manager application: would you like a reply? y / n datasheet: ds-zulumodem-1 questions: 1. what are the best features of this document? 2. how does this document meet your hardware and so ftware development needs? 3. do you find the organization of this document ea sy to follow? if not, why? 4. what additions to the document do you think woul d enhance the structure and subject? 5. what deletions from the document could be made w ithout affecting the usefulness? 6. is there any incorrect or misleading information (what and where)? 7. how would you improve this document? r f solutions ltd., r f solutions ltd., r f solutions ltd., r f solutions ltd., unit 21, cliffe industrial estate, unit 21, cliffe industrial estate, unit 21, cliffe industrial estate, unit 21, cliffe industrial estate, lewes, e. sussex. bn8 6jl. england. lewes, e. sussex. bn8 6jl. england. lewes, e. sussex. bn8 6jl. england. lewes, e. sussex. bn8 6jl. england. email : email : email : email : sales@rfsolutions.co.uk sales@rfsolutions.co.uk sales@rfsolutions.co.uk sales@rfsolutions.co.uk http://www.rfsolutions.co.uk http://www.rfsolutions.co.uk http://www.rfsolutions.co.uk http://www.rfsolutions.co.uk tel sales: tel sales: tel sales: tel sales: 01273 898 020 01273 898 020 01273 898 020 01273 898 020 tel technical: tel technical: tel technical: tel technical: 01273 898 007 01273 898 007 01273 898 007 01273 898 007 tel gen enq: tel gen enq: tel gen enq: tel gen enq: 01273 898 000 01273 898 000 01273 898 000 01273 898 000 rf solutions ltd. recycling notice rf solutions ltd. recycling notice rf solutions ltd. recycling notice rf solutions ltd. recycling notice meets the following ec directives: do not do not do not do not discard with normal waste, please recycle. rohs directive 2002/95/ec rohs directive 2002/95/ec rohs directive 2002/95/ec rohs directive 2002/95/ec specifies certain limits for hazardous substances. weee directive 2002/96/ec weee directive 2002/96/ec weee directive 2002/96/ec weee directive 2002/96/ec waste electrical & electronic equipment. this produ ct must be disposed of through a licensed weee collection point. rf solutions ltd., fulfils i ts weee obligations by membership of an ap- proved compliance scheme.

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