Updating phone loads in 2811
chip to increase Teensy 3.0 or 3.1's 3.3V signal to 5 volts for compatibility with these newer WS2812B LED strips.The Octo WS2811 Adaptor board or similar 5V buffer hardware must be used for reliable signals to large LED projects.We are revising the FEHB Handbook to remove any references to the SF 2811. Octo WS2811 is a high performance WS2811 & WS2812 & WS2812B LED library, written by Paul Stoffregen, featuring simultaneous update to 8 LED strips using efficient DMA-based data transfer (technical details below).Octo WS2811 requires the DMA (Direct Memory Access) engine which is available only in Teensy 3.0 and Teensy 3.1. Please use caution when viewing large numbers of LEDs at close distance. AC mains voltage should be wired properly according to electrical codes. Fewer or shorter strips may be used, with addressing described below. Early versions of Octo WS2811 required pins 15 & 16 to be connected together. Approximately 1000 LEDs per Teensy 3.0 or 4000 LEDs per Teensy 3.2 are recommended for large LED projects, to maintain high performance.
Several years ago, we made the use of Standard Form 2811, Transmittal and Summary Report to Carrier, optional.This backup should take place before any IOS image upgrade process start.In case of unsuccessful IOS image upgrade (due to too-small DRAM size, corrupted IOS image, etc.) it is always a good to know that you are able to reverse the change by putting back the older IOS image (the one that you backup earlier) to the router In order to transfer an IOS image typically you need to run a TFTP program on your computer.I had read about the new Cisco IOS warm upgrade and warm reload features, and I took this opportunity to test them out.By using these features, you can minimize downtime for your end users when you have to upgrade or reboot your router.