D Link DIR 6. 15 rev D4 serial connection Page 1 Hardware Hacking Open. Wrt. Re D Link DIR 6. D4 serial connection. Well, as I mentioned in my first post you can still try to find a 3. V testpoint and measure for a 0 ohms resistance, to be 1. Find helpful customer reviews and review ratings for DLink DIR615 WirelessN Router, 4Port at Amazon. com. DIR615 I finally. for the serial number of. Security patch for your DLink router. can usually be found on the product label on the underside of the product next to the serial number. DIR615 Revision. Dlink Serial Numbers. Convert Dlink trail version to full software. Dlink Dir 615 Firmware UpdateOpenWrt Wiki OpenWrt zhtw Wiki Table of Hardware ZHTW dlink DLink DIR615. you have to edit via serial connection for. The DLink DIR. Yet, you can think about, what the board designers had in mind, when designing the pcb. There are probably a few different teams for the different series, but within a certain series there was most likely the same team responsible for the different revisions. And once they had their serial adapters with the pinout of the first revisions, why would they want to change it Thats just more troubles without benefits. Secondly, and more important, you can see, that the traces of the top and bottom pin are very thin, which means that they are designed for signals, not power. I would expect, that there is a dedicated pcb layer for 3. V, since it is needed in various places in conjunction with GPIOs. Thats why there is no visible trace on the 3.