Installation manual 2N® IP Audio Kit
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3. Technical Parameters
Supported Protocols
LAN interface:
IPv4, ARP, TCP, UDP, DHCP
Device configuration:
HTTP/HTTPS
Call signalling:
SIP 2.0 (UDP, TCP, TLS)
Audio data transmission:
RTP (G.711)
Audio streaming:
RTSP
Time synchronisation:
SNTP
Auto provisioning:
TFTP
E-mail sending:
SMTP
Power Supply
External power supply:
9 to 26 V ± 10 % / 2 A DC or PoE, typically 12 V DC
PoE:
802.3af (Class 0 – up to 12.95 W)
Power consumption:
2 W at relax
LAN Interface
LAN interface count:
1 (since HW version R394-1)
PoE:
802.3af
Parameters:
10/100BASE-TX with Auto-MDIX, RJ-45
Recommended cabling:
Cat-5e or higher
Audio Interface
Microphone input:
Standard electret microphone, Max. Vpp = 100 mV, Rin = 4.4 k
Ω
, Vbias
= 1.5 V
Line input:
Max. 755 mV RMS, Rin = 47 k
Ω
Amplifier output:
10 W amplifier of class D, MONO output, THD < 1%, minimum
loudspeaker impedance: 4
Ω
Line output:
Max. 755 mV RMS, Rout = 600
Ω
Acoustic echo cancelling:
AEC, full duplex
Bandwidth
Audio codecs
PCMA, PCMU – 64 kbps (with 85.6 kbps headers)
Button/Keypad Interface
Button count:
Up to 16 separate buttons in 4x4 matrix
Button function:
User programmable
Matrix outputs:
4 (ROW1–4 terminals) Uout < 0.1 V (L), Uout > 3.2 V (H), up to 8 mA
Matrix inputs:
4 (COL1–4 terminals) Uin < 1.15 (L), Uin > 2.15 V, max. Uin = 5 V
LED Control Outputs
Output count:
3 (LED1±, LED2± and LED3± terminals)
