2N Helios IP Audio Kit - Manual (Page 23)

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
3. Technical Parameters
Supported Protocols
IPv4, ARP, TCP, UDP, DHCP LAN interface:
HTTP/HTTPS Device configuration:
SIP 2.0 (UDP) Call signalling:
RTP (G.711) Audio data transmission:
RTSP Audio streaming:
SNTP Time synchronisation:
TFTP Auto provisioning:
SMTP E-mail sending:
Power Supply
9 to 36 V ± 10 % / 2 A DC or PoE, typically 12 V DC External power supply:
802.3af (Class 0 – up to 12.95 W) PoE:
2 W at relax Power consumption:
LAN Interface
2 (LAN1 and LAN2) LAN interface count:
802.3af on LAN1 only PoE:
Parameters: 10/100BASE-TX with Auto-MDIX, RJ-45
Cat-5e or higher Recommended cabling:
Audio Interface
Standard electret microphone, Max. Vpp = 100 mV, Rin = Microphone input:
4,4 kΩ, Vbias = 1,5 V
Max. 755 mV RMS, Rin = 47 kΩ Line input:
10 W amplifier of class D, MONO output, THD < 1%, Amplifier output:
minimum loudspeaker impedance: 4 Ω
Max. 755 mV RMS, Rout = 600 Ω Line output:
AEC, full duplex Acoustic echo cancelling: