WPC 2B L Zurieri`s RomanQ 10cpi EmphasizedNLQ PS@{+X@Apple LaserWriter PlusAPLASPLU.PRSx6X@KhhhhuфX@2.>B!3|x(CourierCourier Boldmphasized^2CoddȧCCCdr2C28ddddddddddCCrrrdzNdzoȐC8CtdCdoYoYCdo8Co8odooYNCodddYO,OhC2CC!CCCCCCCCCCo8dddddȐYYYYYN8N8N8N8oddddooooddddddzoddYYYYoYYYYdddddoNoNoNCNodCo8CC8oooddȐYYYoNoNoNoNCCooooȐdYYNF2ldCddddddd<d<$YYdCCddooCYZCourierCourier BoldTimes RomanTimes Roman BoldT?xxxx6X@KX@?xxxx `KXey.]8*R]\  PCP@N:!p4  p(ACZZZZ2ZZZZZZZZZZZqyy2Pq7c1Rn1znndnHP LaserJet IIID PostScriptHPLAIIPO.PRSx6X@KhhhhQX@2 L L L311-08-91 06:43a  +"S^*8DSS888S^*8*.SSSSSSSSSS..^^^Jxooxf]xx8Axfxx]xo]fxxxxf8.8NS8JSJSJ8SS..S.SSSS8A.SSxSSJP!PZ8*888888888888S.xJxJxJxJxJooJfJfJfJfJ8.8.8.8.xSxSxSxSxSxSxSxSxSxSxJxSxSxSxS]SxJxJoJoJoJoJxSfJfJfJfJxSxSxSxSxSxS8S8S888SA8xSf.f8f8f.xSxSxSxSxSxo8o8o8]A]A]A]Af8f8xSxSxSxSxxSfJfJN:*LS8JSSSSS.4}}S2S}2JJS88SS]]8J2t^^\\^^ee*C^.wR)Ewn\1fy\r\S{v\r"S^:NuuNNNu:N:AuuuuuuuuuuNNu٨[uܨ騨NANuNuhhNuANA‚uh[Nuuuh\3\yN:NN'NNNNNNNNNNAuuuuu騨hhhhh[A[A[A[Auuuuuuuuuuuuhhhhhhhhuuuuu[[[N[uNANNAuu騨hhh[[[[NN騨uhhNR:~uNuuuuuuFMuFuFAuuuNNuuNuFt捍:]@s:`1"S^2CRddCCCdq2C28dddddddddd88qqqYzoCNzoozzC8C^dCYdYdYCdd88d8ddddCN8ddddY`(`lC2CC!CCCCCCCCCCd8YYYYYYzYzYzYzYC8C8C8C8ddddddddddYddddodYYYYYYdzYzYzYzYddddddCdCdCCCdNCdz8zCzCz8dddddCCCoNoNoNoNzCzCdddddzYzYNF2[dCYddddd7>d<d<$YYdCCddooCYP|kt|b|tYkttttk5,5]P5PYGYG5PY,5Y,YPYYG>5YPtPPG?#?S5(555555555555Y,tPtPtPtPtPttGkGkGkGkG>,>,>,>,tY|P|P|P|PtYtYtYtYtPtP|P|PtPtPbYtPtPtGtGtGtGtYkGkGkGkG|P|P|P|P|P|Y>Y>Y>5>YP5|Yk,k5k5k,tYtYtY|P|PttGtGtGY>Y>Y>Y>k5k5tYtYtYtYttPkGkGN8(VP5PPPPPP05xxP0xxPx0,PPP55PPYY5P0t[[XX[[``(@[,rO(B{r{{{iX1btXnXYttXn2\#PT?xxxx6X@KX@?xxxx `KXmy.]8*R]\  PCP@N:!p4  p(AC7oC2+o\  PCXPTK:6X@K@K: `K7tC2!?t4  p(ACXAP<K\  PCP AP<!4  p(AC a < K  February, 1992 Doc: IEEE P802.1192/15  ?  20 h20  O  #]\  PCRP#Printed: Feb 06,1992'Page ` (#6By: Wim Diepstraten   p4  p(AC E$IEEE 802.11 MWireless Access Method and Physical Layer Specifications 2 Title:` ` Additional requirements for appendix G in the IEEE Requirements Document IEEE P802.1192/01 (#`  o\  PC+  Presented by: XX` ` X Wim Diepstraten(# ` `  NCR SEUtrecht ` `  NCR/AT&T Network Product Group ` `  Nieuwegein ` `  Netherlands ` `  31340276482 (V) ` `  31340239125 (Fax) ` `  Wim.Diepstraten@Utrecht.ncr.com (Email) 2 Abstract:` ` The following are additional requirements for future applications within Retail environments. In addition more information is provided related to the information provided in appendix G on page 63 and 64.(#` APPENDIX G: RETAIL Electronic shelf label applications include: . broadcast of small data packets to multiple shelflabel devices . total refresh of all devices on weekly basis . possibility to send datapackets to 20% of the shelflabels at any time during the day . max number of esl 60.000 . max record size 75 Bytes per device . user response delay max 15 sec. for daily updates . transfer delay max. x min for weekly updates  0*## Electronic bulletin board . Bulletin boards can be located at each department and at the entrance of the store . Various messages can be displayed ( promotions / take away messages etc.) . Max number of devices 50 . Record size 200 Bytes . User response delay < 1 sec. Scales . PLU download to scales weekly ( Mostly done overnight) . Price information any time during the day. . User response delay 15 seconds . Per scale max 500 PLU's . Network area clustered . number of terminals 60 / ha Self scanning devices connected to a customer trolley . Customer scans item before putting into the trolley . Device on trolley where PLU file is resident . At the check out the transaction will be finalized by transmitting registered items to a server. 0*## 3'3'Standard'3'3StandardAPLASPLU.PRSx6X XX` ` X XXhh#X(ELECTRONIC7X  <XxxAX FX(#(#KX%%PSELF.%  XX X XX` ` X ELSXXhh#X(BULLETIN BOARD`  <SCALES FX(#(#KX%%PSCANNING81% Peak X XX` ` X 2/dayXXhh#X(2/minX-Xpp2X7X  <1/minXxxAX FX(#(#KX%%P1/3 min81% TransactionX` ` X 1500 itemshh#X(X-Xpp2X7X  <for 5 items FX(#(#KX%%Pfor 50 items81% # of enq/responses` ` X ©XXhh#X(©X-81 per transaction` ` X XXhh#X(X-Xpp2X7X  <6XxxAX FX(#(#KX%%P5181% network areaX` ` X 5000/hahh#X(30/haX-Xpp2X7X  <clustered81  user response delay required ` ` X < 15 sechh#X(<3 secpp2X7X  <<5 sec FX(#(#KX%%P<5 sec81% X desired ` ` X < 8 sechh#X(<1 secpp2X7X  <<1 sec FX(#(#KX%%P<2 sec81% message sizeX` ` X 75 bytes per device81 per transaction` ` X 12000x75 = 8K(200 bytespp2X7X  <75 bytes FX(#(#KX%%P2KB81% X XX` ` X 81 number of terminals` ` X 60.000hh#X(50X-Xpp2X7X  <60/HA FX(#(#KX%%P20/HA81% MSDU sizeX` ` X 75 byteshh#X(200 bytespp2X7X  <75 bytes FX(#(#KX%%P2KB81% MSDU loss rate` ` X  2XXhh#X( 2X-Xpp2X7 X  < 3XxxAX FX(#(#KX%%P 381% X XX` ` X 10XXhh#X(10X-Xpp2X7X  <10XxxAX FX(#(#KX%%P1081% Station speedX` ` X fixedXXhh#X(<2 m/spp2X7X  <<2 m/s FX(#(#KX%%P>2m/s81% Destination distr.` ` X 100%XXhh#X(100%X-Xpp2X7X  <100%XxxAX FX(#(#KX%%P100%81% dimension81x  o\  PC+   '3'3StandardAPLASPLU.PRSx6X3'3'StandardAPLASPLU.PRSx6X` PAGE 63  ` `  Department store(Discountpp27Supermarket  ` `  hh#(-Xpp2X7checkoutxxA Fƀ% peak transaction` `  hh#(1/min forpp271/3 min for  ` `  hh#(16 itemspp27100 items number of enq/responses hh#( 17-pp27102 etc. user response delay desired` `  500 msec( 500 msecpp2 p7 50 msecƀ% required` `   1 sec( 750 msecpp2 p7200 msec ƀ% Message size per transaction sent to POS` `  120hh#( 120-pp2 p7 60  <ƀ% total ` `  240hh#( 240-pp2p7 85  <ƀ% number of terminals` `   60hh#( 50-pp2p7 75ƀ%  ` `   Terminal downloads requires 512 Kbytes/10 sec. PAGE 64 X Data security and integrity are vital.ƀ% X Downloaded software could be as big as 16 Mbytesƀ% X Subsecond respons on the screen required by all customers.ƀ%  ` `  Financial POS-pp2Program Download Service initiation time  100 msec(- pp2100 msec  <ƀ%p