![](http://pdfasset.owneriq.net/5/35/53593970-d0a7-4a72-86b6-fe4cbbf31b49/53593970-d0a7-4a72-86b6-fe4cbbf31b49-bg28.png)
3. TPU LED
The TPU LED lights up when the TPU switch is turned to Enable.
4. Q-Code LED
The Q-Code LED design provides you the 2-digit display, allowing you to know the
system status. Refer to the Q-Code table on the next page for details.
2-16
Chapter 2: Hardware information