# LED Indicator Query for UbiSwitch Baseboard **URL:** \ **Category:** BotBlox Hardware\ **Tags:** ubiswitch\ **Created:** [November 14, 2023, 3:31pm UTC](https://forum.botblox.org/t/led-indicator-query-for-ubiswitch-baseboard/105 "2023-11-14T15:31:35Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![josh\_elijah](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.botblox.org/josh_elijah/32/568_2.png) [@josh\_elijah](https://forum.botblox.org/u/josh_elijah)\ **Post date:** [November 14, 2023, 4:25pm UTC](https://forum.botblox.org/t/led-indicator-query-for-ubiswitch-baseboard/105/2 "2023-11-14T16:25:37Z")
Yes, this looks like a mistake, thanks for brining this to my attention. Let’s explore this a bit. The way the three activity indicators for the SFPs work is a bit different to the other ports. Each SFP only has a single LED signal associated with it. This is in contrast to the other 8 ports on UbiSwitch which have two LED signals (allowing for tri-colour LED operation). So, we have two dual colour LEDs on the baseboard (labelled Port 10, Port 0 and Port), to represent three signals. Since these labels are incorrect, I’ve relabelled the LEDs with their schematic references in the image below. ![image](https://canada1.discourse-cdn.com/flex027/uploads/botblox1/original/1X/2a5255bffd66298a7fa3ff0d3ff9b6ae9a5f85d5.jpeg) With this in mind… - Red part of D3 flashes for Port 9 activity - Green part of D4 flashes for Port 0 activity - Red part of D4 flashes for Port 10 activity It would appear that this is a mistake in our datasheet too. Thank you for bringing this to our attention. The datasheet has been updated and re-uploaded at [this link](https://botblox.io/content/UbiSwitch%20BaseBoard%20Rev%20F%20DataSheet.pdf), along with the hardware design guidelines at [this link](https://botblox.io/content/BB-AN-0004%20-%20Designing%20a%20custom%20board%20for%20UbiSwitch.pdf). What we will probably do for the future, to make this clearer, is add three uni-colour LEDs for each SFP port. --- _[View the full topic](https://forum.botblox.org/t/led-indicator-query-for-ubiswitch-baseboard/105)._