Zycoo SC15 Guía De Instalación Rápida página 9

Interfaces and Instructions
To reset factory defaults, press and hold the RST button for 10 seconds (5 seconds for IP address announcements)
and release, now you should hear voice prompts "Resetting factory defaults, rebooting...", it means the speaker will
now reset.
ETH0
SYS
RST
ETH0
SYS
07
Ethernet interface
System LED indicator
RST
Reset button
Positive terminal of 24V DC input
Negative terminal of 24V DC input
Press To Talk Button
Volume Control+
Volume Control-
Audio In-
Audio In+
NO output of dr y contact relay
COM input of dr y contact relay
NC output of dr y contact relay