2N Helios IP Uni - Manual (Page 22)

22
2N TELEKOMUNIKACE a.s., www.2n.cz
®
4. Technical Parameters
Signalling protocol
SIP (UDP)
Buttons
Button design Transparent, white backlit buttons with easily replaceable –
name tags
Button count – 1 or 2
Audio
Microphone 1 integrated microphone –
Amplifier 1W (class D) –
Loudspeaker 1W –
Volume control Adjustable with automatic adaptive mode –
Full duplex Yes (AEC) –
Audio stream
Protocols RTP/RTSP –
Codecs G.711 –
Interfaces
Power supply 12V+-15%/1A DC or PoE –
PoE PoE 802.3af (Class 0 - 12.95W) –
LAN 10/100BASE-TX s Auto-MDIX, RJ-45 –
Recommended cabling Cat-5e or higher –
Passive switch NO and NC contacts, up to 30V/1A AC/DC –