KBox E-420-R1K/V1K - User Guide, Rev. 1.1
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Signal
Description
LED Off
EUP Power Status
4.2.2.
Storage LED
The Storage LED blinks red when the data is being written into or read from the SSD which is installed in M.2 Key M
socket.
4.2.3.
Wireless LED
The Wireless LED blinks green when the data is transferring over the mPCIe WLAN / WWAN card and / or M.2 Key B
WWAN card.
4.2.4.
Line-Out / Mic-In
The Line-Out / Mic-In combo jack is used to (1) connect an amplified speaker or headphone to output the system's
audio signal; (2) connect a microphone to capture sound from a source and then input it to the system; or (3) connect
a headphone with microphone.
4.2.5.
USB 2.0
The KBox E-420-R1K/V1K provides two USB 2.0 / 1.1 interfaces on the front I/O panel. These connectors allow
connection of USB-compatible devices to the system.
4.2.6.
RS232/422/485
COM 1 and COM 2 are provided as a 9-pin D-SUB connector and allow the connection of a serial peripheral. They are
designed to support RS232/422/485 serial communication which can be configured via BIOS setup.
4.2.7.
Digital I/O
This interface is used to connect digital signals for input and output purposes.
4.2.8.
WLAN Antenna Port
The KBox E-420-R1K/V1K reserves two covered cutouts for the Reverse (RP) SMA connectors of the WLAN antennas
(mPCIe WLAN card with 2 antennas is an option).
4.2.9.
WWAN Antenna Port
The KBox E-420-R1K/V1K reserves one covered cutout for the Reverse (RP) SMA connector of the WWAN antenna
(M.2 or mPCIe WWAN card with an antenna is an option).
