Red Pitaya HAMlab User Manual page 108

HAMlab, Release 1.0
Speaker connector 1/8" TRS stereo connector can be used to connect stereo powered computer speakers.
Note: Do not use a mono or TS connector that grounds the "ring" portion of the connector.
CTRL
DB9 connector is used to control external equipment. PTT OUT relay is connected between pins 6 and 7.
Note: Other pins are at the moment not in use and should be left unconnected.
DATA
LAN This is network connection to the HAMlab. It is an auto-sensing 100 megabit or 1 gigabit Ethernet port that
enables you to connect HAMlab to your local network or directly to PC.
USB This USB port is used to connect WIFI dongle when user would like to connect to HAMlab wirelessly.
Note:
Recommended WIFI USB dongle is Edimax EW7811Un. In general all WIFI USB dongles that use
RTL8188CUS chipset should work.
SD card HAMlab software is running from SD card.
Note: HAMlab comes with pre installed SD card HAMlab OS. Upgrade can be done using OS upgrade application
from the HAMlab application menu and there is no need to remove the SD card. Therefore user should remove the
SD card and reinstall SD card software only if system gets corrupted or stops working due to SD card failure reason.
In this case only official HAMlab OS should be installed on the SD card for proper operation.
104 Chapter 5. HAMlab 160-6 10W 10W Specifications