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Symbol Technologies MRC-921 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    MRC-921 MircoBase User ’ s Guide[...]

  • Page 2

    2 On December 1, 2000 Symbol T echnologies, I nc. completed the purchase of T elxon Corp oration. Referenc es made throughout this document to "T elxon" or "T elxon Cor poration" are be repl aced with "Symbol" or "Symbol T echnologies, Inc.", respectiv el y. Any questions, contact you r Symbol represent ative[...]

  • Page 3

    MRC -921 MicroBase User’s Guide[...]

  • Page 4

    MRC -921 MicroBase User’s Guide Part Number: 18467-701-01 Release Date : 4/19/95[...]

  • Page 5

    T elx on is a registered trademark of T elxon Corporation. The information contained in this manual is s ubject to ch ang e with out n otice . T elxon Corpo ration shall not be liable for technical or editorial omissio ns or mistakes in this manual nor shall it be liable for incidental or consequential damages result ing from your use of the inform[...]

  • Page 6

    Contents Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 FCC state ment . . . . . . . . . . . . . . . . . . . . . . . 6 FCC regulations . . . . . . . . . . . . . . . . . . . . . . . 6 DOC statement . . . . . . . . . . . . . . . . . . . . . . . 7 Safety i nformat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 U[...]

  • Page 7

    Configuri ng the MR C -921 . . . . . . . . . . . . . . . . . . . . . . . . 20 Communicating data . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Mainta ining the MR C -921 . . . . . . . . . . . . . . . . . . . . . . . . 22 Operating conditions . . . . . . . . . . . . . . . . . . . . . 22 Handling the MRC-921 . . . . . . . . . . . . . . . . .[...]

  • Page 8

    Regulations 1 FCC statement This equipment has been teste d and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the Federal Communications Commission (FCC) rules. These limits are designed to provide reasonable p rotection against harmful interf erence when th e equipm ent is op erated in a commercial environmen[...]

  • Page 9

    DOC statement This digital apparatus does not exceed the Class A limits for radio nois e emiss ions from digital apparatus as outlined in the Radio Inte rference Regulations of the Canadian De partment of Communica tions (DOC) . The MRC-921 MicroBase ’ s MicroRadio is also approved for use in Canada. No license is required for oper ation. This de[...]

  • Page 10

    Safety information 2 Using the radio The FCC with its action in General Docket 79-144, March 13, 1985, has adopted a safety standard for human exposure to radio fre quency ( RF) electrom agnetic energy em itte d by FCC r egulated equipmen t. T elx on subscribes t o the same safety standard f or the use of its pr oducts . Proper op eration of this r[...]

  • Page 11

    Disposing of nickel-cadmium batteries Nickel-cadmium batte ries contain chemically active materials that are hazardous to the environment; ther efore, they mu st be di sposed of prop erly . Neve r attempt to incinerate a nickel- cad mium battery; doing so could cause it to ex plode. T e lxon urges you to con tac t th e En v i ro n me n ta l Pr ot e[...]

  • Page 12

    Scope of the manual 3 This manual provides general information on the MRC-921 MicroBase’ s parts, features, and accessories. It also explains how to operate and maintain the cradle. Document conventions Cautions Cautions indicate potential damage to equipment. They are set of f in the left-hand columns of this manual by the following symbol: ! . [...]

  • Page 13

    Overview of the MRC -921 MicroBase 4 Figure 1 shows a typi cal MRC -921 MicroBas e system. The MRC-921 MicroBase is a communication cradle that allows a w ireless MicroRadio-base d scanner , such as the PTC-921, to communicate with a host. The cradle connects to the hos t’ s serial port via cable and communicates through an RS-232 asynchronous pr[...]

  • Page 14

    Getting started 5 Unpacking the MRC -921 Any additional accessories are shipped i n separate bo xes with their own manuals. Each shipping box contains • an MRC-921 MicroBase, • a pow er pac k (if orde red) , • an external antenna (if ordered), • spare PTC-921 batt ery packs (if ordered), • an SC-921 and MRC-921 Instructi on Sheet , • an[...]

  • Page 15

    Supplying power to the MRC -921 Equi pme nt requ i r ed : • A 12-volt, 800-mA powe r pack T o use the uni t outside of the U. S. or Canada, you need a power pack designed for a 220-volt AC outlet. • An electrical outlet within 6 feet (1.8 met ers) of the MRC-921 providing 1 10 volts AC in the U.S. or Cana da 1. Place the MRC-921 on a flat s urf[...]

  • Page 16

    P arts 6 Figu res 2 and 3 on the following pages show and describe the exte rnal parts of the MRC-921 MicroBase. The part listed below is inte rnal and, ther efore, is not s hown i n eith er of th e figu res. MicroRadio See Appendi x A for rad io specif ications. This short-range radio in the M RC-921 is used to communicate with the MicroRadio in a[...]

  • Page 17

    1. An external antenna can be ord ered to expand the cover age of the cradle’s Micr oRadio. Covera ge incr eases f rom 50 ft (15.2 m) with a standard internal antenna to 100 ft (30.5 m) with an external antenna. 2. T his bay holds a PT C-92 1 spare b attery pack for rechargi ng. T he bay fast charges a fully discharged spare pack in 4 hours. 3. T[...]

  • Page 18

    1 . T his R J -41 s e rial port conn e cts th e MRC-921 v i a cab l e to a ho s t’s R S-232 s erial port for communication or configuration. Refer to the MRC - 9 2 1 T ech n i c al Refere n c e for configuration instructions. 2 . T his 9-pin serial port connects the MRC-921 v i a cab l e to a ho s t’s R S-232 s erial port for communication or c[...]

  • Page 19

    Recharging battery packs 7 ! Use the MRC-921 to recharge only PT C-921 battery p acks. Follow the instructions in this section to use the MRC-921 as a battery charger . ! Recharging a cold battery pack can damage it . Allow any batte ry pack used in below-freezing tempe ratur es to wa rm up to ro om temper atur e bef ore recharg ing. 1. Insert the [...]

  • Page 20

    If the PTC bay was o rdered as a trickle charger , the battery pack in the P TC will take 12 to 16 hours t o charge. If the PT C bay is a trickle charger , its green LED will never light. T he crad le does not indi cate a full-charge state. 3. When each bay’ s gree n LED light s, the batt ery pack in that bay is charged and can be r emov ed and u[...]

  • Page 21

    Connecting the MRC -921 to a host 8 The MRC-921 MicroBase can communicate with a variety of h ost devices, suc h as person al computers and point-of-sale (POS) terminals. Each host can accept data from the MRC-921 through its RS-232 serial port. Follow the instructions in this section to connect your MRC-921 to a host. Connecting to the host’s se[...]

  • Page 22

    Configuring the MR C -921 9 Before the MRC-921 MicroBase can send data from t he wireless scanner (PTC-921) t o t he hos t , the cradle must be p r ope r ly c o n figu r ed for c omm u ni c ation. Specificall y , parameters such as the radio channel, baud rate, co mmunica t i on pro t ocol, an d s o on need t o be selecte d. If it has no t been con[...]

  • Page 23

    Communicating data 10 After t he MRC-921 has been connec t ed to the hos t and properly configured, commun ication usually follows this g eneral pa t tern: 1 . All t hree units (PTC-921, MRC-921, and hos t ) are t u r n e d o n . T he defaul t mess age is usual l y an aster i sk (*). 2 . The PTC-921 initia t es communica t ion wi t h t he MRC-921 .[...]

  • Page 24

    Maintaining the MRC -921 11 The MRC-921 is well constructed and durable; however , it is a precision ele ctronic device and must be treated as s uch. Follow t he procedures in this section to ensure reliable se rvice. Operating conditions The MRC-921 is des igned to operate in environments that are normally free of dust, dirt, and moisture. It can [...]

  • Page 25

    Storing the MRC -921 • Do not store t he MRC-921 in temperatures be low − 20 degrees F ( − 29 degrees C) or above 140 degrees F (60 degrees C) . • Do not store t he MRC-921 in a damp or humid environment (over 95% noncondensing). Pack the MRC-921 in the original packing mate rial or in a padded box and put it in a safe place away from dust,[...]

  • Page 26

    T roubleshooti ng 12 LEDs remain on after the power -on self test • Remove the sp are battery pack and PTC, if present, from the M RC-921. Unplug the power pack; then plug it in again. • If the LEDs remain lit, call your T elxo n service repres entat ive . T he red LED for the PT C does not light • Make sure the PT C is installed correctly in[...]

  • Page 27

    Both LEDs for the PT C are blinking • Make sure the PT C is installed correctly in its bay . • Exchange the battery pack in the P TC-921 with the spare battery pa ck. Refer to page 9 for information on disposi ng of your nickel-cadmi um battery pack. If the LEDs stop blinking, the first batte ry pack is faulty and must be di scarde d. If both L[...]

  • Page 28

    T he green LED for the PT C never lights If the PT C bay was ordered as a trickle charger , the green LED will never light. T his is normal. • Call your T elxon se rvice representative . T he green LED for the spare battery pack never lights • Call your T elxon se rvice representative . Other problems If you e xp erience any other problems or d[...]

  • Page 29

    Appendix A Specifications Commun ication Host interfa ces DB-9 serial port: Built-i n one- or two-wa y 9-pin RS-232 po rt, up to 38.4K bps async RJ-41 s erial port: (Optional) Built-in one- or two- way RJ-41 serial port Electrical Charging time Fast ch arger: 4 hours T rickl e charger: 12 to 1 6 hours MRC-92 1 input voltage requ ireme nt: 12 VDC 80[...]

  • Page 30

    Depth : 3 in/7.6 cm W e ight: 10.5 oz/ .3 kg Radio T ype: MicroRadio Operatin g frequen cy: 902.5 to 92 7.5 MH z Antenna: Internal (standard) or extern al (optio nal) Range Int ernal ante nna: 35 to 50 fee t (10.7 to 15.2 meters) External antenna: 75 to 100 feet (22.9 to 30.5 meters) 28[...]

  • Page 31

    Appendix B Hardware part numbers The following table lists part numbers for ordering the MRC-921 MicroBase and accessories. Item P art number MRC- 92 1 Mi c r oBa se 17853 -001 Accessories External antenna Power pack Spare PTC-921 6-volt nickel-cadm ium battery pack 18634- 000 10142- 200 16880- 001 Cables MRC-921-to-host cable (9-pin) MRC-921-to-ho[...]

  • Page 32

    Glossary asynchronous transmission A trans mission with variable time intervals bet ween successive data characters. In asynchronous communication, each data character is framed by start and stop bits. batt ery pack A sealed se t of rechargeable nickel-cadmium batteries used in the PTC-921 and recharged by the MRC- 921. bit The fundamental binary u[...]

  • Page 33

    signals Electronic impulses that transmit data from one devic e to another . two-way communication Exchange of information be tween two devices . After each block of d ata, the receiving d evice sends a posit i ve or ne gative a cknow ledgment to the sen ding devic e. VDC V olts direc t cu rr en t. A unit of meas ur e o f e lec tr ic potential or p[...]

  • Page 34

    Index A Accessories, 12 part numbe r s, 29 Ante n na S e e Ext e r n a l a n te n na S e e Inte rnal an tenna B Batte r y p ack S e e Ni c ke l - c a d mi u m batt e ry p a ck C Cables, 19, 29 Capacity, 11, 27 Charge time, 11, 15, 17-18, 27 Charging the nickel-cadmium battery pack, 11, 17-18 time required, 11, 15, 17-18, 27 Cleaning the MRC-921, 23[...]

  • Page 35

    L LE D s in t erpre t ation t able, 18 PTC, 13, 15, 24-26 remain on after power-on self tes t , 24 RF, 15 Serial, 15 spare bat t ery pack, 13, 15, 24-26 M Main t aining t he MRC-921, 22-23 Manuals part numbe r s, 29 Messages , 11, 21 MicroRadio, 14-15 specifications, 28 MRC-921 MicroBase capaci t y, 11, 27 cl e ani n g , 23 configuring, 16, 20 c on[...]

  • Page 36

    R Radio safe t y informa t ion, 8 specifications, 28 Recharging bat t ery packs, 17-18 Regulations DOC s t at e men t, 7 FCC regula t ions, 6 FCC statement, 6 Related publications, 10 RF LED, 15 RF link error, 21 RJ-41 serial port, 16, 19 S Safety informatio n, 8-9 Scope of the manual, 10 Serial LED, 15 Serial port, 11, 15, 16, 19 connecting to, 19[...]

  • Page 37

    Te l xon Corporation/3330 W est Market Stree t, Akron, Ohio 443 34/216-867-3700/800-80 0-8001 P art No. 18467- 701-01 Printed in U.S.A.[...]