CHAINTECH 7NJS Ultra User Manual page 29

CN23/CN23A (USB 2/3 and 4/5 Connectors):
If you want to use a USB Keyboard, you must enable the USB keyboard
support function in BIOS's Integrated Peripherals menu (See Section 3.4). This
board contains a USB Host controller and includes a root hub with two connector
for optional USB Adaptor (USB 2/3 and 4/5).
CN24 (CBOX 3 Front Panel Audio Connector):
This connector give you the option of a front panel audio jack cable ext. to be
plug into a special custom designed system case.
Simply remove the two jumper caps at pin [5-6] and [9-10] then plug it into the
(optional) cable ext. connector. Pin [5-6] and [9-10] are shorted (default) to
enable the back panel audio function.
7NJS Ultra User's Guide
Chapter 2
23