2N Helios IP Audio Kit Installation Manual page 25

Legend to figures
Group Terminals
DC in
LAN1
LAN2
LAN
D1
RESET
AUDIO
MODULE
RELAY NO,
COM, NC
LEDs LED1+,
LED1−
LED2+,
LED2−
LED3+,
LED3−
KEYBOARD COL1–4
ROW1–4
BUTTON
2N TELEKOMUNIKACE a.s., www.2n.cz
Function
Power input 9 to 36 V ± 10 % / 2 A DC, typically 12 V DC
LAN connection with PoE function, not available at Lite version
LAN connection, available only for R345v2 version, not available at
Lite version
Only at Lite version, LAN connection
Integrated red and green LED indicators, not available at Lite version
RESET multifunction button
Connection of an audio module with microphone, loudspeaker, buttons
and LEDs
Programmable relay switch with an accessible N/O and N/C contact
3 current outputs for connection of programmable LED indicators; two
terminals per LED, not available at Lite version
Connection of matrix keypad (4 x 4) or 16 separate buttons, not
available at Lite version
Only at Lite version, a button is mapped to pins COL1 ROW4. This
position is mapped to sign * by default. Refer to the section
Connection of Keypad/Buttons.
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