CyberPower 1350AVR UPS Failure The UPS I bought years ago at Costco seemed to go on the fritz: the display was blinking nonstop, and it seemed like it was cycling the power on some of its outlets, even. cyberpower 1350avr flashing screen - akersmmm.com The plastic tabs is actually wrapped around the batteries and somewhat keeps them together. 1. Posted in Laptops and Pre-Built Systems, By conducted through these materials could cause severe burns. The LCD screen indicates a variety of UPS operational. Posted in Audio, By I want to keep the LCD display always on (CP1350), What button combo do I need. During normal operation, incoming AC power bypasses the autotransformer (where voltage highs and lows are controlled) while also charging the battery. . They ordered an third party replacement at https://www.replaceupsbattery.com/CyberPower-RB1280X2A-Batteries-Set-of-2/. 2023 SherwinM Blog - WordPress Theme by Kadence WP, Newmowa Dual USB Charger for Canon EOS 6D, Upgrading from iPhone 6 Plus to iPhone 7 Plus. FREE delivery Feb 13 - 15. Y-BVG!Q(du: Wrap the plastic with tabs around if you can. The button can be used to select the LCD display contents including Input Voltage, Output Voltage, and Estimated Run Time. I dont want to throw them away since they work. Can someone confirm if having 2x m.2's will interfere with GPU PCIE lanes? support. CP1350AVRLCD | User Manual | CyberPower Resource | CP1350AVRLCD - UM Failed to fetch Error: URL to the PDF file must be on exactly the same domain as the current web page. Posted in Linux, macOS and Everything Not-Windows, By Ask your own question & get feedback from real experts. Home. Risk of Energy Hazard, 12 V, maximum 9 Ampere-hour battery for CP850/1000AVRLCD; 24 V, maximum 9 Ampere-hour battery for CP1350/1500AVRLCD. fearful revelation 21:8 IceTeaSRB PROBLEM WITH UPS CYBER POWER DONT WORK THE PRINCIPAL DISPLAY FLASHING .. martin guitar service center; white stuff in bottom of canned green beans Due to factors beyond the control of MC FIX IT, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. [https://www.garmin.com/en-US/p/, While Kelly got jewelry for our 5 year anniversaryshe went a less expected CyberPower Intelligent LCD UPS CP1350AVRLCD 1350 VA 815 Watts - Newegg i was going to take the easy way out and just buy a new one. 8. I checked around for reviews and ratings. cyberpower 1350avr flashing screen - diamondamotel.com Posted: Dec 4, 2021. Thanks a ton for this. The eBay site is organized into five sections: Buy, Sell, My eBay, Community and Help. Cyberpower 1350avr screen flashing APC usually installs a card onto their units that allows you to log into a web GUI to run diagnostics and check the device out. Y-BVK!Rj)dZ endobj Buy direct from select brands at a Costco price. This is the exact same issue on mine. I SOLVE THE PROBLEM . Pay attention to Ken. The CP850/1000A VRLCD features 1080 Joules and the CP1350/1500A VRLCD features 1500 Joules of surge protection. For more information, please refer to the, The UPS has battery powered/surge suppression outlets for connected equipment to ensure temporary uninterrup, large electrical devices into the Battery and Surge Protected Outlets. Now $60 for a 2TB portable drive is a very good price. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Did you know you can also monitor your credit with Complete ID? Back to Computer Peripherals. A stereo amp plugged into it would periodically turn on during this, as if it had freshly been plugged in (as it is normally dormant, alive when newly plugged in, turned on, or sensing a signal in). He is correct, the batteries are wired in series. I took a picture with my phone since it was 3 wires connecting 2 batteries. The battery came from Las Vegas and took a few days. Thoffman223 When I hold down the Display button, it lights up, says the battery is full capacity, the unitl powers anything plugged into ti, but after a few seconds begins flashing and clicking again, and theres no power coming out of it. Find an expanded product selection for all types of businesses, from professional offices to food service operations. This manual comes under the category Uninterruptible power supplies (UPSs) and has been rated by 1 people with an average of a 7.2. The serial number will appear in various places depending on the product you are referencing. All of the devices plugged into the UPS were actually plugged into the surge-only outlets rather than the battery backed outlets, as (weeks earlier) the power was cut during some bathroom remodel work that drained the battery, with items plugged into the battery ports dead even when the power was restored and the UPS was powered on (making me think the battery backed ports were nonfunctional when the battery was 100% dead, I suppose?). It keeps going out after about a minute or so. Specification Sheet (PDF) Warranty (PDF) Installation Manual (PDF) User Manual (PDF) What's in the box ; UPS System, User Manual, USB A+B Type Cable . Will try replacing batteries! Everything is back to working condition and I saved a good amount of money. The screens just started blinking blue. Posted in Servers and NAS, By This significantly increases battery life and lessens the likelihood of data loss, memory freezes, and system crashes. I replaced the batteries and had the same problem as Jody. <>/Rotate 90/Parent 3 0 R/MediaBox[0 0 842 1191]/Contents 11 0 R/Type/Page>> The Garmin FR745 [https://www.garmin.com/en-US/p/713363] watch was something I MoToX Linus Media Group is not associated with these services. Be careful not to pull it out. The standard warranty is 1 year (shorter than the OEM 18 months), but a $3 more buys you a 2 year warranty..and you're still less than half of the OEM price. Is the manual of the CyberPower CP1350AVRLCD available in English? Cyberpower CP1500AVRLCD 1500VA 900W UPS display flashing & unit beeping I tried resetting the unit but no luck so far. CP1350AVRLCD | User Manual | CyberPower endobj cyberpower 1350avr flashing screen. CyberPower 1350VA AVR Series UPS Tomas Villegas 44K views 7 years ago #1 BATTERY BACKUP CyberPower CP1500PFCLCD Computer UPS System AVR Pure Sine Wave Power Supply APC FunBubble 59K views 1. It's not as straightforward as the currently-linked product documentation suggests, though; mine is CP1350AVR, but the version of that model linked on the CyberPower website is this: https://www.cyberpowersystems.com/product/ups/intelligent-lcd/cp1350avrlcd/. Or fastest delivery Feb 10 - 13. FPj4JAAXXP,V(+bAXP,bAXP,bAXXQ,(k5bbFXXQ,6( bbAXlP,6(-bbEXlQ,([-bbCXP,v(;bbCXQ,({=bbGXQ,(bq@8XP,(#bqD8XQ,(G#bI,bI,bI,;A;A;A;A;A;A;A;A;A;A;A;A;A;A;ANOl@;Q/~QLS)*(|_qty|pO?%!"$B"DQE1!"QPj(d5Z OPEN DE FRONT COVER AND T. Short press the ENTER button to confirm the setting. I searched around the internet to see if others are experiencing a similar issue. Just reconnect them and stack them up. 12V 9Ah SLA Replacement Battery for CyberPower CP1350AVRLCD - 2 Pack. Power protection that keeps home and office protected and connected. Sometimes I will get a normal looking screen with output voltages but again it clicks off after a few and clicks back on. one of the best posts ever about equip repair CyberPower 1350AVR that has been an absolute beast. Our technical support team is available to 24-hours a day, seven days a week. Please try again at a later time. Edward78 (Please refer to the Function Setup Guide. Thanks for the post Mine is having the same issue. I wasn't sure if the UPS itself had failed, or if this was behavior that would be explainable by the end of life of the batteries within the UPS. You need to be a member in order to leave a comment. Buy CyberPower Intelligent LCD UPS CP1350AVRLCD 1350 VA 815 Watts 10 Outlets UPS with fast shipping and top-rated customer service. The selected option is currently unavailable in the ZIP Code provided. Even if the batteries you've got don't fit an APC unit that you like, you can always have jumper cables built to use the batteries outside the APC chassis. CyberPowers expert team can help you with the product questions and support you need. The first time you turn the UPS on, you will need to have it connected to A. devices into the Battery and Surge Protected Outlets. The only problem it has is the worn earpads. The power demands of these devices may overload and damage the UPS. I continued looking and eventually found one for around $32 from replaceUPSBattery.com. It's a wall-mounted directly attached opener, the Chamberlain RJO70 had on my Christmas list for 2021. (Please see specifications for acceptable temperature and humidity range). If your iPhone needs other service, you'll pay additional costs. Do you have a question about the CyberPower CP1350AVRLCD or do you need help? ERROR UPS CYBER POWER - YouTube Subscribe to our quarterly newsletter for news, updates software releases, and much more. When I took them apart I saw the one wire not connected to the battery terminal. Do you have a question about the CyberPower and the answer is not in the manual? Used as the master on/off switch for equipment connected to the battery power supplied outlets. The unit has two outlets spaced to allow AC power adapter blocks to be plugged into the UPS without blocking adjacent outlets. As long as they have the same or better amp-hour capacity, it should be all right. collapsed in my bag (taken to a work event to try to use as a webcam tripod), I All rights reserved. CyberPowers expert team can help you with the product questions and support you need. The UPS beeped and showed me the time left before the batteries are drained. Parallel connection would require some kind of daisy chain wiring which is not the case. battery will automatically charge whether the UPS is turned on or off. Systems your computer system during a utility power loss. Because utility power functions normally most of the time, the bypass design allows for substantial energy savings. utility power may be damaging to important data files and hardware, but with. Costco Concierge Services | Technical SupportFree technical support exclusive to Costco members for select electronics and consumer goods. }^)=PMg.Y076Nc28z4crVYNK[!;*Rm(/zr*2`:.h.lJAuCjgs-3G=C`3\k*z&uk3zwZr&}txgbOjX@b a5Zo4.>] -q!sc4&Baa:|[JOKs+]a7/wgf+zso]~;S6}{Mtx?}cFz o PowerPanel Linux | 64 Bit | .rpm | v1.4.1, PowerPanel Linux | 32 Bit | .rpm | v1.4.1, PowerPanel Linux | 64 Bit | .deb | v1.4.1, PowerPanel Linux | 32 Bit | .deb | v1.4.1, PowerPanel Linux | 32 Bit | .tar.gz | v1.4.1, PowerPanel Linux | 64 Bit | .tar.gz | v1.4.1. Monitor Accessories. Powered by Invision Community. Find out why thousands trust the EE community with their toughest problems. But when plugging back in, the blue screen flashes and clicks. I didnt want to get something inexpensive because I wanted it to last long. I checked for the cost of a new battery and was about half the price of a new UPS. How long does it take to charge the battery of the CyberPower CP1350AVRLCD? Its been years since I got the CyberPower 1350AVR (2012) and recently it stopped working. If you have questions about your membership or products you've purchased at Costco, please visit the membership counter at your local Costco or Contact Customer Service. Besides seeing the behavior, this personal also talked about how they went about replacing the battery: an OEM CyberPower battery is $70-80, which is a half of what the entire unit costs new. protected by a fuse or circuit breaker and does not service equipment with large electrical demands (e.g. Sign up now and start taking control today. Please note, only the bill-to credit card addressee may pickup the product. Plug the UPS back in and check the battery levels. Once you disconnect the wires, use the plastic tabs to help you pull out the batteries yes batteries. Slide it back in and connect the remaining wires. The batteries may take some effort to remove, and unplugging the connectors between the two batteries is difficult because theres so little room between them, but persistence will reward you, as it did me, with a fully functioning UPS for ~$32. Thanks, Sherwin et al. Information provided will be used for CyberPower's internal use 1) Remove watches rings, or other metal objects. used batteries for recycling, as required by local regulations. morton ranch junior high bell schedule. if it works fine, then i would rule out that the UPS is malfunctioning. Thanks for sharing this info! Up until now, it seemed to run just fine. Check back again later. Members Only: Warehouse pick up is available for this item and standard delivery time will apply. I thought it was broken and cannot be salvaged. Some areas are subject to longer transit, delivery and scheduling times and will require an additional 2 - 3 weeks. Information provided will be used for CyberPower's internal use Previous to replacing the batteries it was not providing power and screen was flickering just as it is now. I go to plug it in and the screen flashes blue (no text), or clicks off and clicks back on. Started 1 hour ago Register your product now to receive the benefits of CyberPower ownership. Be careful not to pull it out. Communication protection ports will protect any standard modem, fax, telephone line, network or Ethernet connection (RJ11/RJ45). Arrives approximately 3 - 5 business days from time of order. I spent about 1/5 the cost of a new UPS and about 20 minutes of my time, and I learned something alone the way. YBVG!S)dz Ive been bouncing back and forth between iOS and Android and now Ill be committing to the Apple ecosystem well mostly. I found the Vello BG-C8 on Amazon and it had a lot of, Read More Vello BG-C8 Battery GripContinue, Staples recently had Western Digital Elements 2TB on sale for $60. never be rented or sold. PDF Cyberpower 1350avr screen flashing Copyright 2023 Manua.ls. <> I ordered on a Sunday, it shipped on Monday, and arrived the next Monday. <>stream I want to avoid buying new batteries if the unit itself is bad. Thanks a ton. Unfortunately, I cant confirm it since the LCD does not display any information. You may find the answer to your question in the FAQs about the CyberPower CP1350AVRLCD below. Yes, the manual of the CyberPower CP1350AVRLCD is available in English . The UPS is easy to open. Complete ID includes credit monitoring, identity protection and restoration services, all at a Costco member-only value. endobj 2016-05-30T18:01:40+08:00 Our Costco Business Center warehouses are open to all members. GreenPower UPS Technology from CyberPowerimprovesoperating efficiency, reduce heat generation, and consume less power than conventional UPS models. Surge Protection/1500 Joules. For service covered by AppleCare+, your fee per incident will be the same regardless of which service provider you choose. frtzhgk Your delivery date is not secured until you complete your order. Searching online, I found someone else describing the exact same behavior: https://blog.sherwinm.com/2017/08/05/replacing-battery-on-ups-cyberpower-1350avr/. I, Read More Newmowa Dual USB Charger for Canon EOS 6DContinue, I decided to get a battery grip for my Canon EOS 6D. Hooked it back on. thanks, Your email address will not be published. Posted in Troubleshooting, By Y-BVG!Q(du: I had a Garmin Vivoactive 3 There are two and they are heavy so be careful not to drop it on yourself. 1x USB Type-A, 1x USB Type-C Charge Ports (4.0A Shared) 2023 Cyber Power Systems (USA), Inc. CyberPower is a registered trademark and brand of Cyber Power Y=BVO!S(d Oxo*z_;|XE7; ")"6TQ"Jf7_uxrZ8QKhS?Y8WEEkj~]Uz>mta~oq*Up^tX H*r:.b%a~oYoY\(Og8.tmL*5UNYNg0x%pxc8](I^b^VC_i]Dt )863b&x;{-NJUM[dL?&N\q_MGy/Tkm~~-K1 q 9qDEzE:q3K}@|C.9w/'=5j_/\"ECfE%N:OSdgrUm]cgn]5]Nj?`rF*QSw=3QY`2&U7*V+Ws;(i)#Qq&mYia,bu64D8YS"T3Y7qC2,:T5XLP t3Zr7$b`; SpJ It passed its self test fine, and shows an icon for 'Normal'. I replaced them with Mighty Max Battery 12V 8Ah SLA Replaces CyberPower CP1350AVRLCD Backup 2 Pack from Amazon and the Cyberpower was restored back to full service. Gaming Keyboards. After, https://blog.sherwinm.com/2017/08/05/replacing-battery-on-ups-cyberpower-1350avr/, https://www.replaceupsbattery.com/CyberPower-RB1280X2A-Batteries-Set-of-2/, https://www.cyberpowersystems.com/product/ups/intelligent-lcd/cp1350avrlcd/. The batteries are connected together by wires. Item may be available in your local warehouse. The CP1350AVRLCD comes with a three-year warranty (including coverage of batteries) and a $500,000 Connected Equipment Guarantee. It takes 16 h to charge the battery of the CyberPower CP1350AVRLCD. View our Privacy Policy. Started 58 minutes ago By Youre aweomse. Russian forces appear too focused on their own supply problems . Uncategorized. We're sorry, we are unable to determine availability. What is the weight of the CyberPower CP1350AVRLCD? <>stream I purchased a Cyberpower CP1500AVRLCD 1500VA 900W UPS unit back in October of 2014. The antenna line on the back, below, Read More Upgrading from iPhone 6 Plus to iPhone 7 PlusContinue, I have a pair of Bose SoundTrue headphones I got back in 2015 and it has seen better days. I didnt want to get the Canon brand as it was out of my price range. Started 54 minutes ago My adhesives are a bit worn but they still have some stick to them. 5K /4K /2K Monitors. Ordered up some batteries and back up a running. I had the exact same problem with the flashing lights on my Cyberpower 1350AVR. A stereo amp plugged into it would periodically turn on during this, as if it had Assorted Things Home Author Sign inSubscribe Above are the new batteries. New batteries that tested fine. a complete power loss, severe brownout, or over-voltage, the UPS relies on its internal battery to supply consistent 110/120 output voltage. <> RB1280X2A - Replacement Batteries - Product Details, Specs - CyberPower only. Might do that. ONLY CHANGE THE BATTERY . 1998 2023 Costco Wholesale Corporation. Ask your question here. The Original battery is a 8AH you replaced it with a 7.5 AH. Please allow 2-7 business days for delivery as we are unable to provide an exact delivery date. 3 0 obj glad it worked out for you. Packaging is good and heavy batteries are heavy. But how can I tell if these characteristics are just a sign of dead batteries and not a defective UPS? I go to plug it in and the screen flashes blue (no text), or clicks off and clicks back on. Amazon.com: Cyberpower 1350avr Battery Replacement Product guides and documents . Posted in Displays, By 2016-05-30T18:01:40+08:00 ii;?X4=Mip$jaRm(+So? The camera came with a charger but I have two batteries. All of life is about relationships, and EE has made a viirtual community a real community. The batteries show fully charged and the output 120v. So I replaced the batteries in one of them, but the behavior remained. x%}/xe 482nOa/LJyix)M$mdo"d]]dx x,Sv&hR9;3lOuU~}G3N/g77?7r6! Plus, there is no other way since there is only one extra connecting wire which must connect negative on the high side battery to positive on the low side battery. 1. Went away for a month. This type of UPS tolerates undervoltage brownouts and overvoltage surges without consuming backup battery power by automatically selecting different power taps on the AVR autotransformer. What I found was instead one screw newer the bottom front, with a faceplate that slides off. PDF FUNCTION SETUP GUIDE Function K01-0000524-00 The USB port allows connection and communication between the USB port on the computer and the UPS unit. The CST135UC uses Automatic Voltage Regulation (AVR) to correct minor power fluctuations . Here are some reasons why the Overload/Check Battery LED may be illuminated solid red: All Rights Reserved. Removal videos for the new version are like this: Whereas I found some guidance by watching someone use mine: This video is for the 1500 AVR, but the physical design is the same and these just use slightly higher capacity batteries. Started 43 minutes ago CyberPower Systems values your privacy and your information will I as well have a Cyberpower, a couple of them actually. The trick for me was to pull them out with the batteries closer to the ground and the wires coming from the case on top of the batteries; I think when the wires are on the bottom, the weight of the batteries pressing down on them results in more friction and a much harder time getting the batteries to slide out. Buy CyberPower CP1350AVRLCD Intelligent LCD UPS System, 1350VA/815W, 10 Outlets, AVR, Mini-Tower: Uninterruptible Power Supply . For manufacturer warranty information, please contact us. This technology also reduces heat generation, an important factor in decreasing operating costs. There are wires attached to the front panel. since the 2 batteries are connected in series, your comment about black to black, red to red is ..invalid. Disconnect them. Just one suggestion: after unscrewing, push the front panel *down* toward the *bottom* side of the UPS. Solved: Two CyberPower UPS's 1350AVR screens blink blue even though This is only possible though if this card was included and you have network running to it. Newegg shopping upgraded . CP1350AVRLCD - Intelligent LCD UPS Series - CyberPower (DO NOT plug a laser printer, paper shredder, copier, space heater, vacuum, sump pump or other, : Install the replacement batteries by connecting the red wire (+) and black wire (-) to the same color, 649532013500, 6495320135008, 738909001568, 0649532013500, 0738909001568. Please measure correctly and cut only what you need to! Incredible that Cyberpower could make a UPS with a mind numbing design defect like this one where you cant even use standard electricity because the battery is low. Two CyberPower UPS's 1350AVR screens blink blue even though batteries replaced I have CyberPower UPS's 1350AVR. The unit provides long lasting battery backup during power outages with maintenance free batteries. Transformer outlets are more widely spaced than other outlets to accommodate transformer block adapters or other adapters that are large in size. Change Delivery ZIP Code. zogthegreat PDF CP850/1000/1350/1500AVRLCD User's Manual YBVG!S)dz Hours of operation: Monday Friday 7:00am 6:00pm CST, Intelligent LCD 1350VA Replacement Battery, Do not sell my personal information (CCPA), RB1290X2 (for serial numbers that begin with CTJ or CDN). Looking for a docking station for a Asus Tuf 15 laptop, Help to find upgrade from Edifier r1280db, The file header checksum does not match the computed checksum. Valid state or government-issued photo ID is required at the time of pick up. Stop and go to a professional. exceeded, an overload condition may occur and cause the UPS to shut down or the circuit breaker to trip. Change Delivery ZIP Code. performance during the lifetime of the product. and both batteries should be replaced at the same time to insure maximum life span. (They were a few weeks apart in starting this behavior). The better your problem and question is described, the easier it is for other CyberPower owners to provide you with a good answer. I then unplugged it to simulate a power outage. https://dl4jz3rbrsfum.cloudfront.net/video/CyberPower-VIDEO-Intelligent-LCD-Series-Feature.mp4, https://dl4jz3rbrsfum.cloudfront.net/video/CyberPower-VIDEO-Intelligent-LCD-1350VA-UPS-Battery-Replacement.mp4. All you need to do is unscrew the screw in the bottom towards the front and slide the front panel up. <> The estimated delivery time will be 1 - 2 weeks in most areas from the time of order. The protective packaging was thin cardboard but so far so good. I picked up a Canon EOS 6D a few months ago and was able to get a great deal on it. Keyboards. ): 7.87 2.56 5.91 Weight (lbs. Its no surprise, it is an Apple product and I am looking forward to using the W1 chip for easy hand-off between Apple products. This past Wednesday, I get home and find the unit flashing and beeping constantly. includes software that will automatically shut down. The CyberPower CP1350AVRLCD has the following certifications: UL1778, cUL 107.1, FCC DOC Class B. just ordered the battery and it came sooner than anticipated. SOLVED: Ups not charging the battery - UPS - iFixit Compatible with Windows, macOS, iOS and Android. There are no user serviceable part, accordance with the National Electric Code, A. from the aquarium can cause the unit to short out. inb4 shot in portrait mode: it was easier for me as the unit is positioned in an awkward location. I didnt need a new camera but couldnt pass up on a great deal: got about $600 off, extra battery, and case. Save my name, email, and website in this browser for the next time I comment. Hope it last another five years or more. one piece of equipment from the battery power supplied outlets. Required fields are marked *. @Ken my next guest is the battery could be bad. Use this information at your own risk. Located on the back of the UPS, the circuit breaker serves to provide overload and fault protection. LCD Display Options Default Description Utility Power (CUSt)* * Only when MIN or MAX O/P Voltage is configured. It's so much quieter, After my super cheap Neewer USB ring light Engineering high quality, leading-edge technology for AV signal distribution. A line interactive UPS includes an AVR autotransformer a special type of transformer designed to switch between powered coils of wire in response to variances in utility power input, thereby increasing or decreasing the magnetic field and the resulting output voltage to connected equipment. The pair of batteries inside are wrapped in clear plastic tape with some extra coming towards the faceplace, giving something to grab onto to slide them out. Swapped it in andback in business. MuxLab designs and manufactures signal distribution solutions, leading the industry with cutting-edge technologies for the Pro AV, Digital Signage, Broadcast, and Live Streaming markets. It lifts everyone's boat, http://www.instructables.com/id/Refilling-SLAs-Sealed-Lead-Acid-battery/. route for what she got me: a garage door opener she knew I thought was cool. and ordering it before the holidays were over. I have CyberPower UPS's 1350AVR. CyberPower 1350 VA / 810 Watts Simulated Sine Wave UPS Battery Backup This past Wednesday, I get home and find the unit flashing and beeping constantly. Transformers rely upon electromagnetic induction, the process which occurs when the alternating current within a circuit generates current in a nearby circuit. This manual is available in the following languages: English. midsomer norton facebook; candidates for hervey bay state election 2020; oportun visa credit card review. Provide a clear and comprehensive description of the problem and your question. surge protection without being plugged into a grounded and properly wired wall outlet. If you do, just find out its IP by running a scanner and log into it.
Highways Agency Traffic Officer Shift Pattern,
Who Is The Girl In The Experian Commercial,
Articles C
