Sierra Wireless AirLink Raven-E 1 series Скачать руководство пользователя страница 21

Страница: 21 / 120

Rev 3.0B Feb.08

2: Specifications

•

Power Connector

Features and Benefits

•

Embedded

Intelligence

•

Low

Power

Consumption

•

Ethernet

Port

•

Persistent

Network

Connectivity

•

Remote

Management

and

Configuration

•

Class

Div

Certified

Technology

•

CDMA

1xRTT

•

CDMA

‐

Bands

•

800

Mhz

Cellular

•

1900

Mhz

PCS

Environmental

•

Operating

Temperature:

‐

70°

Celsius

•

Storage

Temperature:

‐

85°

Celsius

Power Consumption: (@12V DC)

•

Transmit/Receive

(Typical/Max)

350/450

•

Input

Current

350

•

Input

Voltage

‐

28V

Standards/Approvals

•

Carrier

specific

approvals

•

FCC

•

Industry

Canada

•

This

apparatus

suitable

for

use

Class

Division

Groups

unclassified

non

‐

hazardous

locations.

Host Interfaces

•

Ethernet:

10BaseT

‐

•

Dormant

Содержание AirLink Raven-E 1 series

Страница 1: ...Raven E 1x for Alltel User Guide 20070914 Rev 3 0B...

Страница 2: ...uipment or any equipment which may be susceptible to any form of radio interference In such areas the Sierra Wireless AirLink Raven E MUST BE POWERED OFF The Sierra Wireless AirLink Raven E can transm...

Страница 3: ...5 847 553 5 878 234 5 890 057 5 929 815 6 169 884 6 191 741 6 199 168 6 339 405 6 359 591 6 400 336 6 516 204 6 561 851 6 643 501 6 653 979 6 697 030 6 785 830 6 845 249 6 847 830 6 876 697 6 879 585...

Страница 4: ...our website for up to date product descriptions documentation application notes firmware upgrades trouble shooting tips and press releases www sierrawireless com Support Desk Phone 1 877 231 1144 Hou...

Страница 5: ...cumentation CDPD CDMA and GPRS 2 x Q2 2005 Q2 2007 AirLink Communications documentation CDMA EV DO EDGE and HSDPA 3 0 in draft Converted documentation from AirLink Communications documentation format...

Страница 6: ...dresses 8 1x Communication 9 Security 9 Specifications 10 Features and Benefits 10 Technology 10 Bands 10 Environmental 10 Power Consumption 12V DC 10 Standards Approvals 10 Host Interfaces 10 Dimensi...

Страница 7: ...c and Private Mode 46 Internal DHCP Server 47 Keepalive 48 Configuring Keepalive 48 Data usage using Keepalive 49 IP Manager 51 Reasons to contact the modem and or the connected device 51 Understandin...

Страница 8: ...ID 68 ETHMAC 68 NETPHONE 68 V 68 In 68 Information Displayed in AceManager without AT Commands Listed 69 Status 69 HOSTMODE 69 NETCHAN 69 NETERR 69 NETIP 70 NETOP 70 NETRSSI 70 NETSERV 70 NETSTATE 70...

Страница 9: ...PR n 78 QCVAD n 78 MODEMHISPEED 78 DNS 78 DNSn d d d d 78 DNSUPDATE n 79 DNSUSER d d d d 79 Dynamic IP 79 DOMAIN name 79 IPMANAGERn name IP address 80 IPMGRKEYn key 80 IPMGRUPDATEn m 80 MODEMNAME name...

Страница 10: ...90 MSCIUPDPERIOD n 90 NETWDOG n 90 RESETCFG 90 SNMPCOMMUNITY string 90 SNMPPORT n 90 SNMPSECLVL n 91 SNMPTRAPDEST host port 91 SNTP n 91 SNTPADDR d d d d name 91 TELNETTIMEOUT n 91 TPORT n 92 TQUIT 9...

Страница 11: ...Contents Rev 3 0B Feb 08 6 PPP over Ethernet PPPoE 99 Configuring the Raven E for PPPoE 99 Configuring a PPPoE Connection in Windows 101 Connecting to the Internet with PPPoE 108...

Страница 12: ...rvasive connectivity including PCs routers network equipment and POS ATMs as well as commercial automation equipment Figure 1 1 Sierra Wireless AirLink Raven E ALEOS ALEOS the embedded core technology...

Страница 13: ...ications and their user guides from the Sierra Wireless AirLink Solutions web site http www sierrawireless com support Contact your dealer or Sierra Wireless representative for information on AceNet N...

Страница 14: ...oyment Monitor and Control AceManger allows an administrator to remotely monitor a modem s status health and configuration settings The user interface displays signal strength cell site information by...

Страница 15: ...and maintain wireless networks of any size by enabling you to quickly configure an entire group of Sierra Wireless AirLink modems to the same parameter settings using templates built with AceManger To...

Страница 16: ...E to connect to the Alltel cellular network is by using the AceWare Setup Wizard Modem Doctor Modem Doctor is a troubleshooting and diagnostics utility This utility will allow you to get a log file o...

Страница 17: ...e If you are using USB port as serial then USB device is set to o and if you are using the default option then the USB device is set to 1 The available port is automatically detected Passsword is the...

Страница 18: ...n it automatically searches for cellular service using 1x 2 Your Raven E establishes a PPP Point to Point Protocol or dial up connection link to the Alltel network also called registering on the netwo...

Страница 19: ...lltel Static addresses are permanently assigned to a particular account and will always be used whenever your Raven E connects to the Internet The IP address will not be given to anyone else Most ISPs...

Страница 20: ...radio network technology used by many cellular providers across the globe and is prevalent in North America 1x provides a digital cellular telephony system and can provide wireless Internet access at...

Страница 21: ...Mhz Cellular 1900 Mhz PCS Environmental Operating Temperature 30 to 70 Celsius Storage Temperature 40 to 85 Celsius Power Consumption 12V DC Transmit Receive Typical Max 350 450 mA Input Current 40 mA...

Страница 22: ...NC Dimensions 76mm x 25mm x 129mm 317 grams Application Interfaces TCP IP UDP IP DHCP HTTP SNMP SMTP SMS MSCI and more LED Indicators Channel Link Registration RSSI Transmission Receive Power Power Co...

Страница 23: ...ult aspx Use only the Setup Wizard for Alltel for best results Note The Setup Wizard requires the Microsoft NET framework v 1 1 and Microsoft Windows 98 Windows 2000 Windows XP or later You can obtain...

Страница 24: ...and use the drop down menu to select the Ethernet adapter or USB net connec tionon your computer to which the modem is connected most computers only have one adapter which will be selected for you Th...

Страница 25: ...ction with your computer If you do not see this light or if your computer shows a Network Cable Unplugged message or icon try a different Ethernet cable Note You cannot activate with serial and would...

Страница 26: ...Next when you have selected your desired options Note Based on your selections you may not need to do all of the following Wizard steps 4 Optional Update ALEOS On occasion Sierra Wireless releases upd...

Страница 27: ...te 5 Activate Modem The steps and data required to activate your Raven E on the Alltel network varies depending on the model The Wizard is designed to support older models as well as those currently s...

Страница 28: ...Raven E RSSI Click Next to begin the activation process Note The process may take a few minutes Progress information will display across the bottom Static IP If you have a cellular account with a sta...

Страница 29: ...onnection Test Green checks in the boxes indicate the tests were successful and your Raven E is functioning properly At this point your modem is configured and activated to work on the Alltel network...

Страница 30: ...thentication on an exclusive server Consult your Alltel representative for details about Private Networking Data Link if it s something you need for your account Before you start the configuration for...

Страница 31: ...Secondardy HA HA SPI and AAA SPI required for authentication on the Primary and Secondary Home Agents is provided by Alltel Figure 3 13 Setup Wizard SPI HA Shared Secret Password is used for both Home...

Страница 32: ...rnate method to configure and activate your Raven E is by using AT commands sent directly to the modem with a terminal application refer to the troubleshooting section This method is recommended only...

Страница 33: ...propriate for your type of account The SID and NID are optional and only required if your account type uses them If you have the same number for the MIN and MDN or MSID AT PROVISION MSL MDN SID NID If...

Страница 34: ...Raven E 1x 23 20070914...

Страница 35: ...d ensure that there is adequate airflow around the modem but that it is kept free from direct exposure to the elements such as sun rain dust etc In a mobile location such as a car or truck ensure the...

Страница 36: ...a connector on the back of the Raven E Tip When using a cable to an antenna placed away from the modem minimize the length of your cable All gain from a more advantageous antenna placement can be lost...

Страница 37: ...e uplink port on the hub or switch with a cross over cable Tip On some computers the TCP receive window may be set to 16 kbytes To optimize the throughput of your Raven E it is recom mended that you c...

Страница 38: ...ond in different patterns to indicate modem states Normal Each LED mentioned above lit as applicable Start up The LEDs will cycle from left to right PassThru mode The Chan Reg and Link LEDs will blink...

Страница 39: ...Hardware Installation of the Raven E Rev 3 0B Feb 08 28 Figure 4 4 Optional Mounting Bracket...

Страница 40: ...Hardware Installation of the Raven E Rev 3 0B Feb 08 29 Figure 4 5 100 170 1009 Mounting Bracket for Raven E...

Страница 41: ...Hardware Installation of the Raven E Rev 3 0B Feb 08 30 Figure 4 6 100 170 1006 Mounting Bracket for Raven E...

Страница 42: ...ion Notes are done with AceManager In addition to the various chapters in this guide giving information and directions about using the features of your Raven E the Configuration Commands appendix brie...

Страница 43: ...ial cable you can use PPP If you are connecting locally with the modem connected directly to your computer using an Ethernet cable you can use UDP TCP or Ethernet c Enter the connection information Fo...

Страница 44: ...options a On the left side of AceManager is the Groups menu Select the appropriate group as needed or directed b Enter your changes in the New Value column by typing in the desired change or using th...

Страница 45: ...the reset button on the modem You can also reset the modem by cycling the power Using Templates If you have a modem configuration that works well for your needs using AceManager you can save that mode...

Страница 46: ...you configure with the template could cease to work with the cellular or local network Cellular Technology specific settings the CDMA EV DO group MODEMNAME HOSTPRIVIP HOSTPEERIP HOSTUID HOSTPW d Click...

Страница 47: ...eManager 2 Click on the Load button on the toolbar Figure 5 8 AceManager Load 3 Select the template you have saved you may need to change folders if you saved it to a different location b Verify the c...

Страница 48: ...al modems at the same time For your convenience you can also apply a single template to selected modems simultaneously Connecting to the modems with AceNet is covered in the AceNet User Guide Caution...

Страница 49: ...elect the Modem option in the tool bar and then select Apply AceManager Template Figure 5 11 AceNet Modem menu c Either type in the Template file name or click browse and select the template file you...

Страница 50: ...of Windows XP Start All Programs Accessories Communications HyperTer minal Figure 5 13 HyperTerminal 1 Choose a name and icon for your connection a Choose a name for your connection such as Raven E o...

Страница 51: ...2 Connect To a Select TCP IP Winsock for Connect Using b Type in 192 169 13 31 for Host Address c Change the Port Number to 2332 d Select OK 3 Connected Figure 5 14 HyperTerminal TCP IP connected a If...

Страница 52: ...ake whatever you type Required variable parameters are denoted with italicized text example Dn The n is variable Acceptable parameters and or specific formats are listed with each command Most command...

Страница 53: ...As the host the Raven E can use different communication modes Basic Modes AT The Raven E accepts and responds to standard AT commands PassThru Direct connection to internal hardware OEM Module of the...

Страница 54: ...y a non query command If Q 0 Quiet Off result codes are output The format of this output is then affected by the Verbose setting If Quiet mode is off the result code is affected as follows For V 1 Ver...

Страница 55: ...mode The modem responds with OK at which point a direct connection to the internal hardware is estab lished You can also configure the modem to enter PassThru mode on start up using MD Tip PassThru ca...

Страница 56: ...for example you have the default port blocked on your firewall the option is on the Other tab The default telnet port is 2332 You can also change the Telnet timeout if the connection is idle default...

Страница 57: ...n acts as a router for the device connected to it forwarding to or from the cellular network Public and Private Mode In Public Mode the Raven E will pass the IP address assigned by the cellular networ...

Страница 58: ...above and the y is different 1 and 2 in the example and between 0 and 254 Internal DHCP Server DHCP Dynamic Host Configuration Protocol has become a primary component of today s network environments...

Страница 59: ...uter or a router with the modem The device will then simply use the MAC address of the Raven E to send all outgoing packets Keepalive Keepalive is used to test the connection to the cellular network b...

Страница 60: ...to use for the connection test Caution If IPPINGADDR is left blank or is set to an invalid IP address example an IP which is unreachable or one which is not a valid IP address modem performance will b...

Страница 61: ...Data Communication and Host Modes Rev 3 0B Feb 08 50 IPPING Estimated Usage 15 minutes 400k month 30 minutes 200k month 60 minutes 100k month 120 minutes 50k month...

Страница 62: ...layed on a juke box Updating advertisements to be displayed in a cab Remote access to a computer a PLC an RTU or other system Monitoring and troubleshooting the status of the modem itself without need...

Страница 63: ...domain name can be used to contact a server or device on the Internet While contacting you at your house address or with your phone number employ different methods using a domain name instead of the...

Страница 64: ...en an IP address is not expected to change the DNS server can indicate to all queries that the address can be cached and not looked up for a long period of time Dynamic DNS servers conversely have a s...

Страница 65: ...ou want for the modem There are some restrictions listed below for the modem name DOMAIN The domain name to be used by the modem This is the domain name of the server configured for IPMANAGER1 IPMANAG...

Страница 66: ...the name Must begin with a letter or number Can include a hyphen Cannot contain spaces Must be no longer than 20 characters total Data Usage for IP Manager Server Updates The IP Manager update is a s...

Страница 67: ...s another remote Raven E using IP Manager Configuring DNS Generally when your Raven E receives its IP address from Provider as part of the connection process it will also receive the DNS servers to us...

Страница 68: ...SER is set to 0 0 0 0 it will be ignored DNSUPDATE This command sets how often you want DNS Updates to be requested Otherwise the Raven E will only send updates when it is reset powered up or the IP a...

Страница 69: ...agent such as the Raven E have not been modified and the agent may not be queried by unauthorized users SNMPv3 uses a User Based Security Model USM to authenticate and if desired or supported message...

Страница 70: ...NMP generally uses port 161 however most Internet providers including cellular block all ports below 1024 as a security measure You should be able to use a higher numbered port such as 10161 Security...

Страница 71: ...tion Your SNMP administrator or MIS may require you to change to a more secure and or longer password To change the password in the Raven E select Modem from the top menu line in AceManager Figure 8 2...

Страница 72: ...c SNMP MIB Definition Sample AIRLINK MIB DEFINITIONS BEGIN IMPORTS ObjectName FROM SNMPv2 SMI MODULE COMPLIANCE FROM SNMPv2 CONF org OBJECT IDENTIFIER iso 3 dod OBJECT IDENTIFIER org 6 internet OBJECT...

Страница 73: ...CESS read only STATUS current general 5 aleosHWVer OBJECT TYPE SYNTAX DisplayString MAX ACCESS read only STATUS current general 6 modemSWVer OBJECT TYPE SYNTAX DisplayString MAX ACCESS read only STATU...

Страница 74: ...layString MAX ACCESS read only STATUS current common 5 requestPAP OBJECT TYPE SYNTAX INTEGER no 0 yes 1 MAX ACCESS read only STATUS current common 6 destinationAddress OBJECT TYPE SYNTAX DisplayString...

Страница 75: ...AX ACCESS read only STATUS current status 2 netChannel OBJECT TYPE SYNTAX INTEGER MAX ACCESS read only STATUS current status 3 rssi OBJECT TYPE SYNTAX INTEGER 125 50 MAX ACCESS read only STATUS curren...

Страница 76: ...unt OBJECT TYPE SYNTAX INTEGER MAX ACCESS read only STATUS current gps 2 latitude OBJECT TYPE SYNTAX DisplayString MAX ACCESS read only STATUS current gps 3 longitude OBJECT TYPE SYNTAX DisplayString...

Страница 77: ...D netPW NETPW requestPAP HOSTPAP destinationAddress S53 destinationPort S53 serialPortSettings S23 serialPortFlowControl Q ipAddress NETIP netState NETSTATE netChannel NETCHAN rssi NETRSSI serialSent...

Страница 78: ...terminal emulation and typed AT commands Some commands also require PassThru mode Tip You can use a fully qualified domain name instead of an IP address for most configuration options calling for an I...

Страница 79: ...nable V View active profile the contents of the active registers Not displayed with AceManager In n 0 Product name for example Raven E n 1 The Raven E s firmware ALEOS version hardware ID and copyrigh...

Страница 80: ...ly parameters and provide information about the modem The Status Group has more fields that can be displayed on most screens You can either resize your window or use the scroll bar on the side to disp...

Страница 81: ...example Tech NETSTATE The current network state Connecting To Network The Raven E is in the process of trying to connect to the cellular network Network Authentication Fail Authentication to the cellu...

Страница 82: ...the applicable port Number of System Resets Counter of the number of system resets over the life of the modem or since the configuration was reset Bad Password Count Counter of the number of bad pass...

Страница 83: ...Serial Number of the internal hardware module WHWV Serial number of the module WPRL Preferred Roaming List PRL version WSSW Software version of the internal hardware module RSSI Received Signal Streng...

Страница 84: ...roceeded by AT nor does it require a carriage return enter There must be an idle time set by S50 on the serial port before and after this command AT Escape sequence If the Raven E is in a data mode an...

Страница 85: ...used If a telnet connection is requested N and the port is not supplied port 23 will be used instead of the value from S53 If a domain name is specified the symbol can be used to explicitly indicate t...

Страница 86: ...ms with OPRG enabled n 0 Disables n 1 Enables S53 method d d d d ppppp Destination IP address port and method These are used as defaults for the D Dial AT command method P UDP method T TCP method N Te...

Страница 87: ...imply one of the two can be specified in which case the unspecified value will remain unchanged The date and time are always specified 24 hour notation mm dd yyyy date in month day year notation hh mm...

Страница 88: ...network it will reset the internal hardware and try again The default is 0 0 0 0 which allows any IP address from the network d d d d IP address Example AT STATICIP 192 168 1 23 Caution STATICIP does...

Страница 89: ...red in AceManager n 0 Disable n 3 Data for one call n 4 Data for all calls default MODEMHISPEED Set the internal serial link speed to the internal radio module n 0 115200 default n 1 230400 DNS This g...

Страница 90: ...cific to dynamic DNS Dynamic DNS allows the Raven E to use a dynamic IP address account with an IP address that can change each time you connect and still allow you to use a fully qualified domain nam...

Страница 91: ...he key to use with AT IPMANAGER1 while AT IPMGRKEY2 is used to the key with AT IPMANAGER2 n 1 First IP Manager server n 2 Second IP Manager server key 128 bit key in hexadecimal 32 hex characters IPMG...

Страница 92: ...e other as mymodem PPP Ethernet This group includes commands specific to PPP serial or Ethernet connections between the Raven E and a connected device Figure 1 6 AceManager PPP Ethernet DHCPSERVER n A...

Страница 93: ...55 0 HOSTPEERIP d d d d Set or query the IP address that can be used to directly contact the Raven E once a cellular connection is established If this value is not specified 192 168 13 31 will be used...

Страница 94: ...is in PassThru mode ALEOS is disabled If you need to connect to the Raven E while it is in PassThru mode you will need to do so with a terminal application Not all commands are available while the mo...

Страница 95: ...c string AT command s PTREFRESH n Number of minutes of inactivity in PASSTHRU mode to resend the PTINIT string to the hardware module n 0 Disabled n 1 255 minutes RESETPERIOD n In PASSTHRU mode modem...

Страница 96: ...ssage to an email address Cannot be used with AceManager n SMS E mail server number SMTPADDR d d d d name Specify the IP address or Fully Qualified Domain Name FQDN of the SMTP server to use d d d d I...

Страница 97: ...the RFC for SMTP Cannot be used with AceManager Example 354 send in progress 250 sent ok SMTPSUBJ subject Allows configuration of the default Subject to use if one isn t specified in the message by pr...

Страница 98: ...E mail is available if NETSMS2EMAIL has been configured Use the email address instead of the phone number CNTSMS Reports the number of messages stored C3x10 or C3x10E only Requires PassThru mode New U...

Страница 99: ...only Requires PassThru mode priority 0 1 2 destination phone number of destination cb call back number text text of message enclosed in quotes Note The text is enclosed in quotations The quote charact...

Страница 100: ...Normal Reset Default n 1 Disable Reset on ATZ IPPING n Set the period to ping if no valid packets have been received a specified address IPPINGADDR to keep the modem alive online n 0 Disable pinging d...

Страница 101: ...em Status Update Period where n defines the update period in seconds n 0 Disabled n 1 255 seconds NETWDOG n Network connection watchdog The number of minutes to wait for a network connection If no con...

Страница 102: ...authenticated and encrypted to prevent a hacker from viewing its contents SNMPTRAPDEST host port Controls destination for SNMP Trap messages If port is 0 or host is empty traps are disabled Traps are...

Страница 103: ...access to the Raven E from the cellular network and the Internet Friends mode is a basic firewall Caution If you are using Friends Mode you will not be able to use AceManager remotely or Telnet to the...

Страница 104: ...255 in the IP address will allow any number Example 166 129 2 255 allows access by all IPs in the range 166 129 2 0 166 129 2 255 Tip ATF will return a list of all the current Fn settings Logging Thi...

Страница 105: ...rors i e invalid corrupt packets etc n 2 Log the header of all received packets Note that this can quickly exhaust available space for the event log n 3 Log the header of all received and sent packets...

Страница 106: ...re stored in the modem itself n 0 Disabled SIP only n 1 MIP preferred n 2 MIP only Note Your account with your cellular carrier may not support Mobile IP NAMLCK nnnnnn The NAMLCK is the modem s 6 digi...

Страница 107: ...pon successful entry of this code all other service provisioning AT commands may be used lock 0 OTKSL One Time Key Subsidy Lock lock 1 MSL Master Subsidy Lock nnnnnn 6 digit unlock code Note If an OTK...

Страница 108: ...entity C3x11 and C3x11E only num MIN MSID preceded by the country code The MIN MSID preceded by the country code is 15 digits in length MCC 3 MNC 2 MIN2 3 MIN1 7 For support of Wireless Number Portabi...

Страница 109: ...r msid second number sid 0 or the system ID nid 63355 or the network ID Note If NAMLCK has not been successfully executed the modem returns ERROR nam 0 min phone number msid second number sid 0 or the...

Страница 110: ...on on a LAN Password restricted Internet connection Only one computer router or other network device at a time can connect to the Raven E using PPPoE If you are using the Raven E connected to a router...

Страница 111: ...me for HOSTUID for the PPPoE connection e Enter a password for HOSTPW for the PPPoE to connection f Change DHCPSERVER to 0 Tip If you leave HOSTUID and HOSTPW blank any computer or device can connect...

Страница 112: ...ite the configured settings to your Raven E a Click the Write button on the tool bar of AceManager and wait for the message Write Successful to appear in the status bar Figure 2 3 AceManager Write b P...

Страница 113: ...nu b Select Create a New Connection under Network Tasks in the menu area on the left Select Next to start installing and configuring the PPPoE connection Figure 2 5 Windows Network Connections c Click...

Страница 114: ...0B Feb 08 103 Figure 2 6 New Connection Wizard e Select Connect to the Internet f Select Next Figure 2 7 New Connection Type g Select Set up my connection manually h Select Next Figure 2 8 New Connect...

Страница 115: ...icon It can be the name of your wireless service provider Provider your modem Raven E or any other designation for the connection m Optional If you have multiple users configured for your computer yo...

Страница 116: ...o use the LAN to connect to the Internet and may also affect the network connection on your computer to the rest of the LAN Select this option ONLY if the Raven E will be your sole network connection...

Страница 117: ...things you will want to configure in the connection a Select Properties Figure 2 13 PPPoE Connection b Optional On the General tab if you gave the modem a name with MODEMNAME above you can type in tha...

Страница 118: ...u may want to check the Options tab and change the settings for applications you might be using The default options are generally applicable for most uses Caution Unless specifically directed to do so...

Страница 119: ...ch b Start the PPPoE by Start Connect To Sierra Wireless AirLink Modem or whatever you named the connection It will be listed on your Network Connec tions window under the heading Broadband Figure 2 1...

Страница 120: ......

Результаты поиска

Содержание AirLink Raven-E 1 series

Отзывы:

Похожие инструкции для AirLink Raven-E 1 series

Бренды по названию

Популярные бренды

Sierra Wireless AirLink Raven-E 1 series, Руководство пользователя

Результаты поиска

Содержание AirLink Raven-E 1 series

Отзывы:

Похожие инструкции для AirLink Raven-E 1 series

Бренды по названию

Популярные бренды