Planar WN-5040-720 Скачать руководство пользователя страница 102

Страница: 102 / 153

7 Reference Section

7.1

Menu Trees … 92

Picture … 92

Picture: Source Select … 93

Input Levels: Analog Sources … 94

Input Levels: Digital Sources … 95

Input Levels: Video Sources … 96

Size & Position … 97

Size & Position … 98

Aspect Ratio & Wall … 99

Memory … 100

Memory: Recall … 101

Memory: Save … 102

Diagnostics: Display Status … 103

Diagnostics: RS232 & RS485 Status … 104

Diagnostics: Test Patterns … 105

Diagnostics: Setup Summary … 106

Diagnostics: Hours … 107

Advanced Options: Color Balance … 108

Advanced Options: Miscellaneous Options … 109

Advanced Options: Lamp Settings … 110

Advanced Options: Serial Port Settings … 111

Advanced Options: Auto Setup Options … 112

Advanced Options: Engine Alignment … 113

Advanced Options: Menu Options … 114

Program Information … 115

7.2

Remote Control Buttons … 116

7.3

Drawings … 120

7.4

Connector Diagrams … 124

7.5

Glossary of Terms … 126

7.6

Specifications for Margay … 130

7.7

Regulatory Certifications … 134

Содержание WN-5040-720

Страница 1: ...WN 5040 720 User Guide...

Страница 2: ......

Страница 3: ...i WN 5040 720 Margay 50 Display Wall Unit User Guide 020 0548 00B 29 March 2007...

Страница 4: ...on contained in this document is subject to change without notice Planar Systems Company makes no warranty of any kind with regard to this material While every precaution has been taken in the prepara...

Страница 5: ...will have a reasonable time to make repairs to replace Products or to credit Buyer s account LIMITATIONS Any written warranty offered by Planar is in lieu of all other warranties express or implied Pl...

Страница 6: ...iv...

Страница 7: ......

Страница 8: ...ctions 20 2 5 1 Connections Analog Digital Sources 22 2 5 2 Connections Video Sources 24 2 5 3 Connections Power 26 2 5 4 Connections Control RS232 RS485 28 2 6 Installing and Removing Screens 30 2 6...

Страница 9: ...Controlling Margay with Remote 72 4 4 Controlling Margay with RS232 RS485 74 4 5 Asset Tag and Display Status 76 5 Troubleshooting 77 5 1 Troubleshooting Tips 78 5 2 Reading the On Screen Code 80 5 3...

Страница 10: ...1 1 Basic Information About Margay 1 1 Accessories For Margay 2 1 2 Your Safety and Margay s Safety 4...

Страница 11: ...t 1 for each Margay on the bottom row shipped per order not per display 2 Front screws 2 3 Long side to side bolts 1 washers 4 and wing nut 1 4 Short side to side bolts 1 washers 4 and wing nut 1 5 Ve...

Страница 12: ...vary in design One of these for each Margay on the bottom row 6 Suction Cup 8 DVI cable 3 Long side to side bolt 4 Short side to side bolt 10 Remote Control 5 Vertical screw 20 bolt 2 Front screw 7 V...

Страница 13: ...ves as the disconnect for this product No user serviceable parts inside All parts replacement is done at the module level by a qualified service technician CAUTION There are no user serviceable parts...

Страница 14: ...5...

Страница 15: ...prendre contact avec les autorit s locales ou avec votre revendeur et renseignez vous sur la m thode de mise au rebut correcte Italiano Smaltimento delle attrezzature elettriche ed elettroniche usate...

Страница 16: ...giltig inom den Europeiska unionen Om du vill sl nga bort den h r produkten ska du kontakta lokala myndigheter eller terf rs ljar och fr ga efter l mplig avfallsmetod Polski Usuwanie zu ytego sprz tu...

Страница 17: ...6...

Страница 18: ...econd Row and Up 16 2 4 2 Building a Banner Upside Down 18 2 5 Connections 20 2 5 1 Connections Analog Digital Sources 22 2 5 2 Connections Video Sources 24 2 5 3 Connections Power 26 2 5 4 Connection...

Страница 19: ...nput Module in each Margay 10 3 If it was purchased install the Big Picture key in each Margay 12 4 Build the wall of Margays leaving the screens off 14 5 Connect the Margays to power 26 picture sourc...

Страница 20: ...9...

Страница 21: ...u will remove it partially 1 Turn off the AC power to the Margay and remove the power cord 2 Open the door on the right side of Margay as viewed from the front exposing the electronics module 3 Loosen...

Страница 22: ...ut in the four screws Be sure the VIM is pressed well into the socket 7 Put the electronics module back in place and secure it with the two screws 8 Reconnect power if you removed it earlier One of 4...

Страница 23: ...1 Open the door to the electronics module 2 Remove the cover of the Big Picture key socket 3 Plug the BP key into its socket CAUTION Be sure all six pins go in the socket holes If the key is installe...

Страница 24: ...13...

Страница 25: ...is not level as would be the case in a tilted wall but it must be straight 4 Use shims under the Margays to make the row straight vertically 5 When the row is straight tighten the bolts hold ing them...

Страница 26: ...15 First row with screen supports in place Using string to see that the row is straight Side to side bolt with wing nut at bottom of neighbor Margays Screen support bolt two at each end...

Страница 27: ...the first row As you stack be careful with the pins that align the rows 2 As each Margay is placed in the second row secure it to the lower unit with two Front screws 3 Then bolt the Margays top to bo...

Страница 28: ...h or tilted walls Because the Margay is so narrow front to back there is a danger of tipping with high walls Margay has tie back points on the rear to prevent this Use these tie backs to secure the Ma...

Страница 29: ...You may use the screen supports to cover part of the Margay but they are not necessary in the upside down configuration Inverting the picture and menus In the Miscellaneous menu under Advanced Option...

Страница 30: ...19...

Страница 31: ...ory it is installed in the field by the installer When installed the VIM accepts composite S video and component video YPbPr Each input connector is paired with its separate loop thru output See 2 5 2...

Страница 32: ...21 Electronics module as seen from the front The electronics module door is open...

Страница 33: ...a standard DVI cable It has a loop thru but this Digital Out connector is not dedi cated to the Digital In connector Instead the Digital Out connector carries the picture of the currently selected inp...

Страница 34: ...23 In Out...

Страница 35: ...ectors and looped out Be sure the DVD player is not set to progressive scan Use the Analog 1 or 2 connector for progressively scanned DVD When you choose Component Video in the Picture menu the Colors...

Страница 36: ...25...

Страница 37: ...eight 8 connected Margays for 230V operation WARNING Do not exceed the recommended number of Margays linked in series for AC power or the current draw will be too great The AC switch on each Margay co...

Страница 38: ...27 AC power in and out 1 4 5 3 2 6 No more than 4 115 VAC...

Страница 39: ...485 In Start with RS232 and loop all the rest with RS485 Information about controlling with RS232 is in 4 4 Controlling Margay with RS232 RS485 on page 74 For best results the RS485 cables should be t...

Страница 40: ...29...

Страница 41: ...h each other Floating also means that screens higher in a wall are resting on the lower screens The screens in the bottom row rest on screen supports the skirt at the bottom that holds all the screens...

Страница 42: ...f the column first but just a little Top of Margay 1 Top of Margay 2 Top of Margay 3 Screen 1 Screen 2 Screen 3 Then pull the outer edge Top of Margay 1 Top of Margay 2 Top of Margay 3 When Margays ar...

Страница 43: ...ide the screen closed lifting it slightly so the screen won t scrape on the screen support below Next 5 Install the screens to the left and right of the cen ter to complete the bottom row a After you...

Страница 44: ...of Margays install the screens starting with the center of the bottom row and work out to the ends Then install the screens above the middle until you have an inverted T Finally install the rest of t...

Страница 45: ...Hints When pulling with the suction cup always pull at a slightly up angle This keeps the screen from scraping the screen below Place the suction cup puller near the corner of the screen Start at the...

Страница 46: ...7 8 9 10 This may seem like a long way to pull a single screen but this order of operations helps prevent screen damage Then this edge 3 4 Now here 1 2 Then this edge 3 4 Finally pull this edge 1 2 3...

Страница 47: ...n props open for work from the front 1 Carefully open the screen of the Margay you want to work on See 2 6 2 Opening or Removing a Screen on page 34 2 Pull the screen all the way out 3 Use the hook to...

Страница 48: ...Adjusting Input Levels Manually 46 3 2 2 Adjusting to Computer Sources Digital 48 3 2 3 Adjusting to Video Sources 50 3 3 Color Balancing a Wall of Margays 52 3 4 Spreading One Picture Over a Wall 54...

Страница 49: ...en a The other pattern Alignment Dashes can help you here This pattern shows the last six pixels at each edge b To hide one pixel adjust the size so that you see five dashes at each edge c There may b...

Страница 50: ...ve the screen image down tighten these screws turn the screws clockwise b To move the screen image up loosen the screws turn the screws counter clockwise These adjustments are for large physical movem...

Страница 51: ...40...

Страница 52: ...41 Alignment Dashes Use the Alignment Dashes pattern to show how many pixels are visible at each edge Use the Grid pattern to adjust rotation and to align all pat terns in a wall...

Страница 53: ...white Black is supposed to be a voltage of zero coming from the computer s video card but it almost never is White is supposed to be a voltage of 0 7 volts but it usually isn t either The Input Level...

Страница 54: ...43...

Страница 55: ...the Black White Levels item is checked the Margay will do this automatic level adjustment whenever a completely new source is displayed What is a completely new source Margay remembers all the values...

Страница 56: ...45...

Страница 57: ...they do not all touch zero at the same time use the individual colors under MANUAL BLACK LEVEL to adjust them Do not go beyond the point where the Minimum just goes to zero The idea is to just touch t...

Страница 58: ...47...

Страница 59: ...are advance level controls and should not be adjusted unless you have been briefed by the factory or are familiar with black level adjustments They are used to correct the digital blacks that come fro...

Страница 60: ...s form of the Input Levels menu appears when the current source is Digital and the colorspace is RGB This form of the Input Levels menu appears when the current source is Digital and the colorspace is...

Страница 61: ...uration and Hue on one Margay until it looks satisfactory 3 Adjust all the other Margays in the wall so they have the same values for Contrast Brightness Saturation and Hue as the first Margay Adjusti...

Страница 62: ...51 Saturation Match these Match these Adjust Saturation so the outside bars match when Blue Only is checked Hue Match these Match these Adjust Hue so the inside bars match when Blue Only is checked...

Страница 63: ...utes The lamps must be thoroughly warm before you color bal ance 2 For each display press MISC once on the remote 3 Set Gamma at the bottom of the menu to either Video or Film but be sure this is the...

Страница 64: ...at has very little color in gray This becomes the first baseline display for gray It does not have to be the same as the baseline unit used for White 16 Proceed as before matching the grays one displa...

Страница 65: ...nar s Big Picture Each Margay must have a Big Picture key installed Installing the Big Picture Key on page 12 Loop the same source through all the Margays in a wall Connections Control RS232 RS485 on...

Страница 66: ...55...

Страница 67: ...uch as 16 x 9 or 4 x 3 This is a 1 77 picture shown on a 3x3 wall of Mar gays The picture fills the wall nicely and there is no distortion or cropping Let s start with a 1 33 4x3 picture the aspect ra...

Страница 68: ...is cropped top and bottom you can choose Top Middle or Bottom Similar choices are made if the picture is letter boxed Border Color determines the color of the extra space around the picture if it does...

Страница 69: ...om Zooming is used mainly to make the edges of a large picture one that covers many Margay screens fit each other side to side and top to bot tom Zoom menu entries Image Resolution is the resolution o...

Страница 70: ...59...

Страница 71: ...o cessing system The DMD chip is about the size of a postal stamp and contains in the case of Margay 1280 by 720 pix els What is Viewport The Viewport menu adjust the number of pixels actually used on...

Страница 72: ...61...

Страница 73: ...adjustments listed in this section Then press the SAVE button twice This opens the Save grid Navigate to an unchecked slot number or to a checked slot if you want to overwrite what s already saved Pre...

Страница 74: ...63 ENTER ENTER...

Страница 75: ...set up the Black and White Levels for a 1024x768 65Hz vertical from a Parameter Specific to the Global Mode Input ASCII Response Term x ASCII Response Type x Auto Codes x Auto Lamp On x Baud Rate x Be...

Страница 76: ...Pr video You change the Colorspace setting to YPbPr If you switch back to Analog 1 in the Picture menu the Margay switches back to the RGB Colorspace because Color space is specific to the input conne...

Страница 77: ...66...

Страница 78: ...67 4 Operating 4 1 Selecting a Source 68 4 2 Normal Start Up 70 4 3 Controlling Margay with Remote 72 4 4 Controlling Margay with RS232 RS485 74 4 5 Asset Tag and Display Status 76...

Страница 79: ...se the source you want and press ENTER 5 Press MENU again to close all menus Selecting a source means choosing an input connec tor so you can see the picture coming into that input If the source you s...

Страница 80: ...69...

Страница 81: ...is cool enough the cool down period is skipped After this cooling down period you can turn on the lamp If Auto Lamp On is checked in the Miscel laneous menu the lamp will strike begin to turn on at t...

Страница 82: ...71...

Страница 83: ...Miscellaneous menu the Margay will make a beep each time a remote but ton is pressed and the Margay receives the signal If the Margay cannot perform the requested action it will beep three times a tri...

Страница 84: ...73...

Страница 85: ...up ID of 3 but with any Unit ID If you have three walls and all the cubes in one of the walls have Group ID 3 this type of command would address only this wall To address all the cubes with a certain...

Страница 86: ...75...

Страница 87: ...e lamp will not be on and you wouldn t be able to see this menu at all Lamp same for this item Interlock If the interlock is Open the lamp will not light unless the interlocks have been bypassed to se...

Страница 88: ...77 5 Troubleshooting 5 1 Troubleshooting Tips 78 5 2 Reading the On Screen Code 80 5 3 Reading the LEDs 82...

Страница 89: ...y It should be lit No ballast power Some displays have a green LED near the main AC switch that lights when the 350 volt part of the power supply is working It should be lit Other displays may have an...

Страница 90: ...79 display However there is a very tiny chance that the part in the box doesn t work If you test a part by putting in a known good part you get better information...

Страница 91: ...lights Move around to see them Or press CURTAIN to make the screen black so they will be easier to see If you see a steady unblinking amber light it means the lamp is on and there are no alarm condi...

Страница 92: ...with Amber Lamp off lamp saver 3 9 Amber Amber R Lamp off ready to turn on 10 Amber Amber Lamp striking starting 11 Amber Amber Amber Lamp on no alarms 12 Amber on continuously R Red To show the code...

Страница 93: ...e detailed information about the Margay s state To see LEDs The LEDs are on the electronics module From the rear you can see them easily that is if there aren t too many cables in the way From the fro...

Страница 94: ...ble lamp Either door open Lamp disabled Serial Data No command received Received any com mand Serial Cmd Received command meant for me Lamp Saver Lamp Saver not active or lamp is off Lamp Saver active...

Страница 95: ...84...

Страница 96: ...85 6 Maintenance for Margay 6 1 Changing a Lamp 86 6 2 Changing the Air Filter 88 6 3 Cleaning the Screen and Mirrors 90...

Страница 97: ...This is the way all lamp manufacturers specify lamp life as the median not the average Taking a different case suppose the first 50 lamps failed at 1 hour and the rest of them lasted 10 000 hours The...

Страница 98: ...p will not operate properly Overheating may occur 2 Then mount the lamp in its place Note the two pins opposite the lamp screw These fit into holes in the optical engine 3 Close the system following t...

Страница 99: ...air filter after three months of operation Make a note of the air filter s condition Then check it again after six months of operation These two inspections will give you some idea of how often the f...

Страница 100: ...remove the power cord 2 Remove the rear panel 6 turn screws 3 Push open the electronics module door 4 Reach around through this door and loosen the light shield screw 5 Push the light shield up until...

Страница 101: ...on t spray it on the screen See Warning above Cloth to use White cotton cloth is better for cleaning than col ored cloth The dyes in some colored cloth tend to make it less absorbent Paper towels tend...

Страница 102: ...gnostics Test Patterns 105 Diagnostics Setup Summary 106 Diagnostics Hours 107 Advanced Options Color Balance 108 Advanced Options Miscellaneous Options 109 Advanced Options Lamp Settings 110 Advanced...

Страница 103: ...ted source is Digital You cannot adjust Horizontal Fre quency in Analog because that is determined by the source so it is grayed out In the Source line the left right keys choose the source Other item...

Страница 104: ...93 Picture Source Select Press the LEFT ARROW to open the Source choice menu To select a source manually highlight Source press LEFT ARROW key select the source you want press ENTER...

Страница 105: ...94 Input Levels Analog Sources Press LEVEL to open the Manual Levels menu directly For digital see Input Levels Digital Sources on page 95 For video see Input Levels Video Sources on page 96...

Страница 106: ...95 Input Levels Digital Sources Press LEVEL to open the Manual Levels menu directly For analog see Input Levels Analog Sources on page 94 For video see Input Levels Video Sources on page 96...

Страница 107: ...96 Input Levels Video Sources Press LEVEL to open the Manual Levels menu directly For analog see Input Levels Analog Sources on page 94 For digital see Input Levels Digital Sources on page 95...

Страница 108: ...l two sides of the picture using the arrow keys Zoom is very lim ited if the Margay does not have the Big Picture key Reset All Windows to Default makes all Zoom values zero If Big Picture is being us...

Страница 109: ...xels are being used This feature is most useful when each cube in a wall is fed a separate picture from a video processor In such a case you can t zoom the picture smaller but you can shrink the pictu...

Страница 110: ...fill the screen All of the picture is shown Crop fills the screen by zooming until the second edges touch the screen edges and crops the rest Some of the picture will be cut off Letterbox Pillarbox f...

Страница 111: ...100 Memory See Memory Recall on page 101 The Delete menu looks like the Recall menu It is not necessary to delete a memory slot before saving something new See Memory Save on page 102...

Страница 112: ...slots are grayed out and you can t land on them Press ENTER to open the Recall detail menu The detail menu shows what will be recalled when you press ENTER When Current appears in the Slot to Recall...

Страница 113: ...Save to Slot number currently has something saved in it To save highlight Save Now and press ENTER A Current notice will appear in Save to Slot to indicate that the save was successful and that the s...

Страница 114: ...Display Status The Optical Engine SN is read from the optical engine The Aspect Tag is a text line you can enter using the appropriate RS232 string command Find the Margay RS232 Guide on the Planar S...

Страница 115: ...104 Diagnostics RS232 RS485 Status...

Страница 116: ...105 Diagnostics Test Patterns...

Страница 117: ...106 Diagnostics Setup Summary...

Страница 118: ...ived power Running Time is the total number of hours any lamp has been on Lamp is the total number of hours this lamp has been on that is if someone reset lamp hours when the lamp was changed Reset La...

Страница 119: ...gs and are used primarily in single Margay installa tions Custom is the one for color balancing a wall of Margays Gamma changes the colors slightly for Film or Video display Use Film for deeper reds U...

Страница 120: ...y many computers to determine the capabilities of the monitor This is a complicated standard and not all video card driv ers and operating systems act the same If you are having trouble getting your v...

Страница 121: ...lamp to cool Lamp Saver causes the lamp to turn off if there is no source for the specified period of time When a valid source is re acquired the lamp will turn on again When the lamp turns off it mus...

Страница 122: ...of each is 0 9 and A Z ASCII Response Type and ASCII Response Terminator are explained in the Margay RS232 Guide available from Planar s website Terminate In most instances this is not necessary Termi...

Страница 123: ...n nector is lost Margay will stop on the next con nector that has a picture sync Do Black White Levels automatically adjusts the lightest and darkest pixels to be white and black This fully automatic...

Страница 124: ...113 Advanced Options Engine Alignment See Adjusting Margay s Engine Important Step on page 38 for a complete explanation of these controls...

Страница 125: ...V Position move the location of the menus on the screen Menu Timeout sets how long menus will remain on the screen before disappearing on their own The choices are 5 15 and 60 seconds and Never Time O...

Страница 126: ...m Information The middle section shows the native resolution of the Margay and the Revision number of the firmware Planar Systems Inc 1195 NW Compton Drive Beaverton OR 97006 USA Tel 503 748 1100 www...

Страница 127: ...116 7 2 Remote Control Buttons The function of each remote control button are shown on the next several pages Turns the lamps on and off...

Страница 128: ...117 Starts scanning the input con nectors for the next available source...

Страница 129: ...e curtain on and off Curtain pattern is selected in the Miscellaneous menu Changes the value of the high lighted item In some menus like PIcture Position these buttons con trol left right movement The...

Страница 130: ...in a menu In some menus such as Picture Position these button con trol up down movement Selects the highlighted item If there is an arrow in the item this button goes to that menu Selects the previous...

Страница 131: ...120 7 3 Drawings All dimensions are in inches...

Страница 132: ...121...

Страница 133: ...122...

Страница 134: ...123...

Страница 135: ...f the color of the wires on the two connectors is the same left to right the cable is straight thru The order of the colors doesn t matter as long as they are both the same DB15 standard VGA connector...

Страница 136: ...power 3 TMDS data 2 4 shield 15 Ground for 5V Hsync Vsync 4 TMDS data 4 16 Hot plug detec tion 5 TMDS data 4 17 TMDS data 0 6 DDC clock 18 TMDS data 0 7 DDC data 19 TMDS data 0 5 shield 8 Analog verti...

Страница 137: ...deo informa tion is sent on one wire DA Distribution amplifier a device that takes in one input and gives out many of the same type DAs are available for video computer and digital signals display One...

Страница 138: ...re on separate wires RGBS RGB plus sync where composite sync is on a separate wire Term Meaning SECAM The television system used primarily in France Russia and the former Soviet Bloc countries Sequent...

Страница 139: ...name for any Planar model begin ning WN 4030 WXGA Wide XGA a standard for distributing analog computer pictures with a reso lution of 1280 pixels by 768 pixels XGA eXtended VGA a standard for distrib...

Страница 140: ...129...

Страница 141: ...erviceable from front or rear completely Controls RS232 RS485 remote IR control WallNet ready Yes Electrical and Heat Specification Maximum Minimum Typical Notes Video input amplitude Separate analog...

Страница 142: ...0A 1 5A 230 V 1 2A 1 0A Heat BTUs per hour 550 BTU Power consumption 160W Optical Specification Maximum Minimum Typical Notes Viewable screen size Diagonal 50 1321 mm Width 32 5 826 mm Height 17 5 445...

Страница 143: ...still opera tional after 6000 hours Stuck pixels 2 2 stuck dark 0 stuck bright Screen lamination 1 16 1 6 mm delamination at edges Environmental Specification Maximum Minimum Typical Notes Temperatur...

Страница 144: ...133...

Страница 145: ...onable protection against harmful interfer ence in an installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction...

Страница 146: ...on the screen 58 black level 52 black level digital 48 black level manual adjusting 46 blue in color balance 53 Bobcat definition of 126 border color 57 building the wall 14 buttons arrow 118 119 butt...

Страница 147: ...olor balance 53 grid pattern 41 group ID 74 111 H H V sync definition of 126 H position 114 height wall 99 hide menu 52 high voltage 4 horizontal frequency specification 131 hours menu 107 I ID cube 7...

Страница 148: ...14 zoom 97 menu options 114 menu position 114 menu timeout 114 mirror cleaning 90 misc menu chain 117 miscellaneous options 109 model name location of 141 model number location of 141 modes switching...

Страница 149: ...n 132 screen shims 32 screen support 2 14 screen cleaning 90 screen open for work 36 screens 30 screens installing and removing 30 SECAM 24 SECAM definition of 127 selecting the source 42 68 92 93 sem...

Страница 150: ...requency 131 VGA definition of 127 video composite definition of 126 definition of 128 input module definition of 128 video controls 52 video input amplitude 130 video input module installing 10 video...

Страница 151: ...140 A B C D E F G H I J K L M N O P Q R S T U W V X Y Z A B C D E F G H I J K L M N O P Q R S T U W V X Y Z...

Страница 152: ...green background has vertical bands in it Whenever I try to _______ I get a message on the screen that says _________ The lamp will not turn on When I changed it with another lamp it still did not tu...

Страница 153: ...ar 2007 Planar Systems Inc All rights reserved 1195 NW Compton Drive Beaverton OR 97006 1992 Main Phone 1 503 748 1100 Technical Support Phone 1 866 752 6271 Fax 1 503 748 5532 www planar com ts plana...

Результаты поиска

Содержание WN-5040-720

Отзывы:

Похожие инструкции для WN-5040-720

Бренды по названию

Популярные бренды

Planar WN-5040-720, Руководство пользователя

Результаты поиска

Содержание WN-5040-720

Отзывы:

Похожие инструкции для WN-5040-720

Бренды по названию

Популярные бренды