Keep holding the button and apply power. 0. WS-C3850-48P-S IP Base Cisco Catalyst 3850 Stackable 48 10/100/1000 Ethernet PoE+ ports, with 715WAC power supply 1 RU, IP Base feature set . Cisco Catalyst 3850 Stackable 48 10/100/1000 Ethernet PoE+ ports, with 1100-WAC power supply 1 RU, LAN Base feature set (StackPower cables must be purchased separately) WS-C3850-12X48U-L. Series Release Date. 3at Power over Ethernet Plus (PoE+), modular and field-replaceable network modules, redundant fans and power supplies. I understood that the two models has the same PoE per port capacibility,. Linkom-PC is your source for Refurbished Cisco WS-C3850-48T-S. 3at Power over Ethernet Plus (PoE+), modular and field-replaceable network modules, redundant fans, and power supplies. 5 kg） WS-C3850-24S および WS-C3850-12S スイッチ This convergence is built on the resilience of the new and improved Cisco StackWise-480. Chapter Title. $199. Items Per Page. 5G/5G/10G and 36 1G UPoE ports, 1 network module slot, 1100 W power. Cisco Catalyst 3850 Series and Cisco Catalyst 3650 Series Switches Best Practices Guide. Cisco Catalyst 3850-48T-S - switch - 48 ports - Managed - rack-mountable. I am trying to reset the password on a 3850 switch following the below procedure without success. About this product. Sofern nicht anders angegeben, ist die Dokumentation für die Cisco Catalyst Switches der Serie 3850 auf alle Modelle anwendbar. Only 2 left in stock - order soon. Cisco Catalyst 3850 Series Switches; Install and Upgrade < Return to Cisco. Check Current Code Version. Catalyst 3650-48PS-L switch: Productspecificaties, documenten, downloads, Visio-stencils, productafbeeldingen en community-content benaderen. How are the ports numbered in a 48 port switch?The Catalyst 3850 Series is the first to feature a built-in wireless controller with up to 40 Gbps of capacity on 48-port models. The next-generation Cisco MDS 9148T 32-Gbps 48-Port Fibre Channel Switch provides high-speed Fibre Channel connectivity for All-Flash arrays. $350. A maximum of 48 ports can be assigned for Openflow. The RJ-45 console port uses an 8-pin RJ-45 connection. Cisco 3750-E vs. Cisco Catalyst 3850 Series Switches. Cisco 3850 48 port gigabit switch WS-C3850-12X48U-E is sealed in cisco original box. The Cisco Network Convergence System 540 Medium Density Routers (NCS 540) are designed for cost-effective delivery of next-generation services and. A terminal must be connected to the management port of the switch that runs a TFTP server. Cisco Catalyst 3560 Series. Contact Cisco; Get a call from Sales. Table 1. Data di rilascio della serie. Table 3. The airflow direction. 11ac 技术，并使用现有 5e/6 类电缆提供多千兆级速度。. If you are using an earlier release, you can skip this step. Each 48-port Cisco Catalyst 3850 provides 40 Gbps of wireless throughput (20 Gbps on the 24-port model). 通过 Catalyst 多千兆技术支持第二代 802. PDF - Complete Book (27. network switch model; ws-c3850-48t-l : cisco catalyst 3850 48 port data lan base (a/w soft. 04E or later 16. 48:03 +00:00 rdope. Catalyst 3650-48TS-L switch: Productspecificaties, documenten, downloads, Visio-stencils, productafbeeldingen en community-content benaderen. IP Base. Products. Best Quote WS-C3850-48P-E price, buy brand new Cisco 3850 switch: Cisco Catalyst 3850 48 Port PoE IP Services (In Stock) and faster shipping C3850-48P-E internationally. Cisco Catalyst 3850 48 Port PoE LAN Base REMANUFACTURED. Switch - 48 ports - Managed - stackable. The initial step is to power your switch off, on the off chance that you. The last day to order the affected product(s) is October 30, 2016. 0 Ports. Reload the switch (use the power cable). Big Discount for Cisco 3850 price, buy Brand New Cisco Catalyst 3850 at Router-Switch. Product Details. End-of-Sale and End-of-Life Announcement for the Cisco ONE ELA Perpetual Licenses for C3560CX. Training & Certification. 6. Campus LAN Switches - Access. The Cisco Catalyst 3850 series is the enterprise-class stackable access-layer switches that provide full convergence between wired and wireless on a single platform. Customers with active service contracts will continue to receive support from the Cisco Technical Assistance Center (TAC) as shown in Table 1 of the EoL bulletin. USB Type A-to-USB 5-Pin Mini-Type B Cable. Big Discount Cisco WS-C3850-48T-S, buy 100%. Cisco Catalyst 3850-48T-E 交換器. StackWise-480 supports a mixed stack of any Catalyst 3850 models (48 ports 10/100/1000, 24 ports 10/100/1000, and 12/24 Ethernet SFP ports; see Figure 1). Catalyst 3850, 3650, 3750-X, 3560-X. 95. 了解详情. LAN Base. These switches are stackable up to 9 members and come equipped with Cisco's popular StackPower technology. ผ่อนชำระ (x6) 27,875. or Best Offer. The C3850-NM-4-1G and C3850-NM-2-10G modules are not supported on the 12-port and 24-port SFP+ models. Deliver exceptional network experiences with the Cisco Catalyst Center on-premises platform, Meraki cloud-managed dashboard or cloud monitoring for Catalyst. Emergency Recovery. 00 $ 1,545. x (Catalyst 3850 Switches) Configuring Auto-QoS; Configuring QoS; Index; Software Configuration Guide, Cisco IOS XE Denali 16. 34Cisco Catalyst 3850 Stackable 48 10/100/1000 Ethernet ports, with 350-WAC power supply 1 RU, IP Base feature set. Products. Cisco Catalyst 3850 Series Switches. 7. C9300-48P-A. 90 & FREE Shipping Works and looks like new and backed by the Amazon Renewed Guarantee. It provides support for the highest density WiFi-6/WiFi-6E and 802. If all else fails, the 3850 has a “trap door” method of recovering the system. Catalyst 3850 12S full reset Go to solution. WS-C3850-48PW-S. The problem is I can see the file on usbflash0:, it says it is copying to flash: successfully when I issue the command, however, when I look in dir flash. PWR-C3-750WDC-R: -48 VDC (nominal) (-40. Cisco WS-C3850-48F-S Catalyst 3850 48 Port Full PoE Networking Device (Renewed) 5 offers from $132. PoE+, and Cisco UPOE on 24- and 48-port switches. This makes sure that the network can. EOSL Date 10/31/2025. End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 16. This. $64,554. 00 Details. Stackable 24 10/100/1000 Cisco UPOE3 ports, 1 network module slot, 1100 W power supply. C9300LM-48U-4Y. com search results. C9500#show version | in IOS XE Cisco IOS XE Software, Version 16. 121-12c. That is, 120 buffers are allocated for queue 0 in the context of 1G ports; 720 buffers in. Cisco Catalyst 3850 Series provides capabilities. The Cisco Catalyst 3850 provides optimized application visibility with FNF across wired plus wireless. Cisco Catalyst 3850 48 PoE+ Ethernet Switch P/N: WS-C3850-48F-E Tested Working. When managing a device stack, connect the PC to the Ethernet management port on a. Catalyst 3850-48P-L switch is shown. All versions support Power Over Ethernet (PoE). interface range GigabitEthernet2/0/1-48 . Catalyst 3850-12, 3850-12X48, 3850-24, 3850-48, C3850-24: Device Type: Expansion module: Form Factor:. I have a Cisco 3850 - 48 port Switch. 13. Cisco Catalyst 2960-X Series. 11. Tipo prodotto. One network starts with Cisco Catalyst 3850 switch, which combines wired and wireless by. 2SE (Catalyst 3850 Switches) (ZIP - 15 MB) 19/Jun/2013. Please note: Catalyst 3850 and Catalyst 9300 network modules are supported on the Catalyst 9300 models. Cisco Catalyst 3850 48 Port UPOE IP Base REMANUFACTURED. White Papers. Item is. Was: $270. Stackable 12 100M/1G/2. LAN Base . Upto 2% Discount on Checkout. 06-12-2015 09:13 AM. 00 WS-C3850-48T-S Cisco Catalyst 3850 48 Port Data IP Base 11,500. 40. For management purposes, you can configure the Cisco Catalyst switches that run Cisco IOS® software to return a custom string. Cisco Catalyst 3850 Stackable 24 10/100/1000 Cisco UPOE ports, 1 network module slot, 1100 W power supply. Cisco Catalyst 3850 是首个可堆叠访问交换平台，可在一个基于 Cisco IOS XE 软件的单一平台上提供有线与无线. Figure 7. Here's an overview of the design and architecture of the WS-C3850-48T-S switch: Hardware: The WS-C3850-48T-S switch features 48 Gigabit Ethernet ports, four. Catalyst 3850 スイッチは、Cisco StackWise-480 テクノロジーによるスタック構成、および StackPower による電源管理をサポートします。. Cisco Catalyst 9300X models C9300X-48HX - 48 port 1/2. WS-C3850-48F-L is designed for access layer with 255 VLANs and IEEE802. The Catalyst 3850 Series is the first to feature a built-in wireless controller with up to. Includes Accessory Kit (Rackmount Ears and Screws, Power Cable,. This wireless capacity increases with the number of members in the stack. Brand: Amazon Renewed. 9. Catalyst 3850 24 ポート PoE スイッチ. 3-meter StackPower cables and one 1. Products. there's a 1x near the first arrow pointing upward and another indicated 12x near the last arrow pointing downward. I'm thinking about upgrading this software but am a little confused by how Cisco has their software download page set up. We will also pack WS-C3850-48F-S with the second box before shipping. . Call Sales: 1-800-553-6387 5am-5pm PT Product / Technical Support. From the technical specifications section of the 3850 Hardware Installation Guide, the 1100w power supply total input power/btu is 1250w/4263BTU/h. This series is available in 8 port to 48 port configurations. Systems with fewer powered devices might require only one power supply. Cisco Catalyst 3850 Series Switches - Learn product details such as features and benefits, as well as hardware and software specifications. Overview EOL13188 - Amended Cisco announces the end-of-sale and end-of-life dates for the Cisco Catalyst 3850 switches. Cisco StackWise-480 1m stacking cable for Cisco Catalyst 3850 series switch: Compare to Similar Items. Cisco 3850 Series 48 Port Gigabit Switch WS-C3850-48T-S is sealed in cisco original box. Detail: Cisco Catalyst C3850-24P Switch Layer 2- Access Layer – 24 * 10/100/1000 Ethernet POE+ ports – LAN Base – managed- stackable. Contents iii Cisco Catalyst 3850 Series and Cisco Catalyst 3650 Series Switches Best Practices Guide Recommendations for Configuring the Uplink Interface to a Router or Switch 5-44 Configure QoS on the Uplink EtherChannel Interfaces 5-44 Configure the Uplink Interface as an EtherChannel and as a Trunk 5-45 Configure the Uplink Interface to. LAN Base . Cisco Catalyst 3850 . 24-port 1G, 60W PoE,. Cisco Catalyst 3850 Series 48 Port PoE Switch WS-C3850-48F-S is sealed in cisco original box. Power cycle the switch. 0. Consolidated Platform Configuration Guide, Cisco IOS XE 3. 00. 이 스위치는 BYOD/모빌리티를 지원하며, 이전 모델보다 더욱 향상된 다양한 성능과 보안, 운영 기능을 제공합니다. Cisco Catalyst 3850 シリーズ スイッチをワイヤレス コントローラとしてご利用いただくには、IP Base ソフトウェア モデル、または IP Services ソフトウェア モデルをご購入いただく必要があります。. With a stacking throughput of 480 Gbps, the 3850 provides a significant performance increase from the Cisco 3750-X line. Published On: August 7ᵗʰ, 2020 11:02 Catalyst 3850 Switch Hardware Installation Guide. View this content on Cisco. 0. Switch Expansion Modules. 2017 Cisco Catalyst IOS Software Update Program for Catalyst 2000, 3000, and 4000 Series Switches Product Bulletin. 5/5/10 Gbps Cisco UPOE models with Energy-Efficient Ethernet (EEE)The Cisco Catalyst 3850 series is the next generation of stackable switches and provide wired and wireless capabilities, enhanced stacking throughput, modular uplink options, redundant power, and Cisco StackPower technology. The default switch configuration does not include the network module. I'm thinking about upgrading this software but am a little confused by how Cisco has their software download page set up. 99. Data di rilascio della serie. 45 cm. Up to 48 ports full Perpetual. Cisco Catalyst 3850-48P-S - switch - 48 ports - managed - rack-mountable. Products. Catalyst 3850-48P-L switch is shown. Statement 48 Warning: Ethernet cables must be shielded when used in a central office environment. 13. ws-c3850-48f-e datasheet, cisco catalyst c3850-48p switch layer 3 - 48 * 10/100/1000 ethernet poe+ ports - ip service, fast. Our products will be sent via FedEx,DHL,TNT,UPS,EMS,and so on. Switch LAN per campus - Accesso. 265,00. Cisco Catalyst 9600 Series Switches Twice as fast, twice the capacity: Meet your new campus core Transform your network with switches that move at the speed of work. 7. StackWise Technology. Catalyst 3850-48P-L switch is shown. Cisco Catalyst 3850 Stackable 48 10/100/1000 Ethernet PoE+ ports, with 1100-WAC power supply 1 RU, LAN Base feature set (StackPower cables must be purchased separately) WS-C3850-24U-L . Further, it supports up to 100 access points and. 04-08-2021 06:51 PM. It is designed for enterprise and campus networks, and offers advanced features such as power over Ethernet Plus (PoE+), Layer 3 routing, and network virtualization. Power Supply Installation. 6E (Catalyst 3850 Switches) 24/Jun/2016. Gi1/0/48 0 0 638604 0 0 638604 Port Single-Col Multi-Col Late-Col Excess-Col Carri-Sen Runts. PDF - Complete Book (13. View this content on Cisco. 3850 12 SFP 24 8P8C 48 8P8C 12 SFP+ 16 SFP+ 24 SFP+ 32 SFP+ 48 SFP+: Up to 2, most capable of stacking power None 1 Gbit/s, 10 Gbit/s and 40 Gbit/s options on. The Cisco Catalyst 3850 series is the enterprise-class stackable access-layer switches that provide full convergence between wired and wireless on a single platform. We have put in service a catalyst 3850-12XS running ver 03. Keep holding down the Mode button for another 45 seconds and then release. WS-C3850-48F-L is designed for access layer with 255. Cisco Catalyst 3850 Series Switches The digital transformation: Converged wired and wireless access and aggregation The promise of digital for your business is all about innovating more quickly while reducing risk, cost, and. Download a valid image file from CCO and store it. 00. WS-C3850-48U-E enables sophisticated layer. Cisco Catalyst 3850 48 Port 10G Fiber Switch IP Base: JL075A: Aruba 3810M 16SFP+ 2-slot Switch: WS-C3850-48XS-F-E: Standalone Cisco Catalyst 3850 Switch that supports SFP+ transceivers, 48 ports that support up to 10G, and 4 QSFP ports that support up to 40G, and 750WAC back-to-front power supply. The Cisco Catalyst 3850 series switches support full IEEE 802. Table 1 describes the End-of-life milestones, definitions, and. Our products will be sent via FedEx,DHL,TNT,UPS,EMS,and so on. 80. Hi, just for updated information, Cisco has release the 9500 model, the model 3850-24s. Further, it supports up to 100 access points and 2, 000 wireless clients per switching entity (or stack). 99 shipping. 特に指示がないかぎり、スイッチという用語は. Figure 1 Components delivered in the shipping box 1 Catalyst 3850-48P-L 1 switch with optional network module2 (power supply and fan modules not shown) 3 1. & std acc. 14. . The Cisco Catalyst 3850 Series Switches support full IEEE 802. 76 Get Discount: 12: WS-C3850-48P-S-RF. Connect your console cable to the 3850 and guarantee you can get a command prompt. Data VLAN. FREE delivery Tue, Nov 14 . Chapter Title. I should be able to follow the process in that doc. com, vous trouverez par ailleurs des informations relatives à la configuration système requise, des. Cisco WS-C3850-48P-L Catalyst 3850 48 Port GE PoE LAN base 715w P/S. Hold the button for approximately 12 seconds, the Status LED will go amber. Switch . About this item Total Number of Network Ports- 48 Media Type Supported- Twisted Pair Form Factor- Rack-mountable This product is available as. C9300X-24Y - C3850-48XS-E++ Catalyst 3850 48 Port 10G Fiber Switch IP Services TAA See Product Migration Options section for details. . Rack-mountable 1U. Cisco WS-C3850-48F-E 3850 Series Switch With C3850-NM-4-1G and Single Pwr Sply. WS-C3850-48PW-S. This switch offers state-of-the-art. Hi, I think it's a new switch and you have saved the config, but using wr or copy running-config to startup-config. Total price: Add both to Cart. One of these items ships sooner than the other. Or fastest delivery Mon, Nov 13 . Cisco Catalyst 3850 series Layer 2 and layer 3 stackable access and distribution switches. 이것으로 Cisco 는 SSO(Stateful Switchover) 기반의 고가용성, 세분화된 QoS, 보안 및. 1 14/Apr/2016. 11 . This wireless capacity increases with the number of members in the stack. 5 VDC to -56 VDC). Cisco WS-C3850-48F-S Catalyst 3850 48 Port Full PoE Networking Device (Renewed) 2 offers from $232. 19. Table 1 before proceeding with configuration. Print. Cisco 3850 Series. Manufacturer Cisco. For Cisco Catalyst switches running software versions earlier than Cisco IOS XE Fuji 16. $229. 5E/3. Products. WS-C3850-24PW-S. Table 1. Skip to Content. The Catalyst 3850 series switches are Ethernet switches to which you can connect devices such as Cisco IP Phones, Cisco Wireless Access Points, workstations, and other network devices such as servers, routers, and other switches. 00 postage. Cisco 3850 Series UPOE 48 Port Switch, IP Base, WS-C3850-48U-S, Refurbished, Original. Switch vendor Cisco Switch model Catalyst 3850 Switch firmware 03. 5 cm x 48 cm x 4. 7 for Catalyst 3850 and 3650 Series switches. 5Gbps) Network Advantage - WS-C3850-24P-BA Cisco Catalyst 3850 24 Port PoE IP Services C9300-24P. 1 RU. Cisco Catalyst 3850-48-XS Series 16. 24 and 48 100Mbps/1/2. Cisco Systems Part# WS-C3850-48XS-F-S. 52 postage. WS-C3850-48XS-F-E Cisco Catalyst 3850 48 See Product Migration C9500-48Y4C - Port 10G Fiber Switch Options section for IP Services details. Cisco Catalyst 2960 Series. See the Catalyst 3650 Switch Hardware Installation Guide for instructions. Best Practice User Guide for the Catalyst 3850 and Catalyst 3650 Switch Series. Take the configuration backup before proceeding upgrade. Cisco 3750-X Series. The Cisco Catalyst 3850 is the first stackable access switching platform that enables wired plus wireless services on a single Cisco IOS XE Software-based platform. C9500-48Y4C - C3850-48XS-F-E++ Catalyst 3850 48 Port 10G Fiber Switch IP. switchport trunk pruning vlan {add | except | none | remove} vlan-list [,vlan [,vlan [,,,]] Configures the list of VLANs allowed to be pruned from the trunk. 47 MB) PDF - This Chapter (2. 00. The WS-C3850-48U-L Cisco Catalyst 3850 is a 48-port Gigabit Ethernet switch with 2 10 Gigabit Ethernet ports. and for som reason it was set up previously with the wrong enable password. Cisco WS-C3850-48T-S, Cisco Catalyst 3850 48 Port Data IP Base. I have a issue with two switch models of the Cisco Catalyst 3850 platform. Die Cisco Catalyst Switches der Serie 3850 werden nicht mehr verkauft, sondern werden weiterhin von Cisco unterstützt. Access Points VLAN. Cisco Catalyst 3850 シリーズ スイッチ. Cisco Catalyst 3850 Stackable 24 10/100/1000 Ethernet ports, with 350-WAC power supply 1 RU, IP Services feature set . Most routers and switches by Cisco have default passwords of admin or cisco, and default IP addresses of 192. Model: WS-C3850-24P-L Catalyst 3850 Switch. Cisco Catalyst 3850 Series provides capabilities. With this, Cisco has pioneered a host of rich capabilities such. Each 48-port Cisco Catalyst 3850 provides 40 Gbps of wireless throughput (20 Gbps on the 24-port/12-port models. Rp11. 03SE software. 3 GB. Cisco Catalyst 3850 48 port(12 mGig) UPOE IPB with 5 AP Lic C9300-48UXM-A Catalyst 9300 48-port(12 mGig, 36 2. The new Cisco Unified Access Data Plane (UADP) Application-Specific Integrated Circuit (ASIC) powers the switch and enable s uniform wired-wireless policy enforcement, application visibility, flexibility, and application. 00 (73% OFF) Buy Now 61: WS-C3850-48XS-F-E. but the buyer is responsible for. C9500 - 48Y4C - C1-WSC3850-48XS-S. WS-C3850-24T-E. If the config file is saved the switch will never allow to you login until you entered the correct password, do the factory reset option, or SWITCH_DISABLE_PASSWORD_RECOVERY=1 try with this as well. ) 7 people had this problemBeginner. 4 ポンド（6. 24-Jan-2022. Security Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3850 Switches) OL-30243-01 7 Using the Web Graphical User Interface Configuring the Switch Web GUI. Switch Cisco Catalyst 3850 48 Port Modul Nm 4Port 1G Wsc3850 48T-S V07. Figure 1. 5 but ran into a issue. Cisco Catalyst 9300X * Roadmap 128 tunnels 256 SA’s + 128 rekey SACisco Catalyst 3850 48 port(12 mGig) UPOE IPB with 5 AP Lic C9300-48UXM-A Catalyst 9300 48-port(12 mGig, 36 2. Manufacturer Warranty. 7. but the buyer is responsible for. Cisco Switch Catalyst 3850; Cisco Switch Catalyst 3650; Cisco Switch Catalyst 2960; Cisco Catalyst Micro Switches; Cisco Catalyst Compact Switch; Cisco Nexus 3000 Series; Cisco Nexus 5000 Series; Cisco Nexus 9000 Series; Cisco Nexus 7000 Series; Cisco Industrial Ethernet 1000 Switches;Cisco Catalyst 3850 Series Switch, 48 Port, PoE+, LAN Base, WS-C3850-48P-L, Refurbished, Original. Table 1. If your devices is WS-C3850-12X48U-S and we are based on the attached table, Multi Giga Ethernet ports, you can use SFP or SFP+ for 12 ports and optional until other 8 x 10 Ten Gig (SFP+) if a module is installed. The Cisco 3850 Series of switches is an industry-leading, enterprise-class series of access switches that offers superior performance, scalability, and reliability. (Cisco Phones, Printer Switch etc. En savoir plus sur la politique de fin de vie de Cisco. Recommendation updated to 16. About This Guide. 5. ) china: delhi air cargo: nos: 3:. 3. Catalyst 3850 Switch Hardware Installation Guide . 15-MAR-2010. About This Guide. 모빌리티 에이전트(MA): Cisco Catalyst 3850 스위치에서 제공되는 기본. Cisco Catalyst 3850-48P-E switch – 48 ports – Managed – rack-mountable. Configuring Cisco CleanAir; Configuring Bluetooth Low EnergyBook Title. Cisco Catalyst 3850 24-port. 12. 2. Subtype. 1 ポンド（6. WS-C3850-12X48U-S. Cisco Catalyst 3850 Stackable 48 10/100/1000 Ethernet PoE+ ports, with 1100-WAC power supply 1 RU, LAN Base feature set (StackPower cables must be purchased separately) WS-C3850-12X48U-L. Cisco Catalyst 3850 48-port PoE IP Base with 5-access point license . Two specialty 3850 models allow for either 12 or 24 SFP+ ports for complete flexibility. Lifewire / Tim Liedtke. 9. Status. Cisco StackWise-480 technology to provide scalability and resiliency. 6 Tbps, Silicon One ASIC (new) Up to 4 x 400G (new), 48 x 100G, 96 x 40G and 192 x Cisco multigigabit, 25/10/1G ports. Es probable que haya sido descontinuado y no vuelva a estar en existencia. Status. Catalyst 3850-48P-L switch is shown. The Cisco Catalyst 3850 Series Switches support five optional network modules for uplink ports. xE for Cisco Catalyst 3850 and 3650 Series Switches. Free shipping. 0. 5 kg） WS-C3850-24S および WS-C3850-12S スイッチThis convergence is built on the resilience of the new and improved Cisco StackWise-480. 00 534. with 48 Ethernet POE + ports with upgradeable LAN base IOS image. Figure 1.