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After HT-9513/9515 board
No. Project The main technical parameters
1 Network Interface Standard RJ45 input interface
2 Call button Speed / double call
3 Network protocol TCP/IP、UDP、ARP、ICMP、IGMP
4 Network chip rate 10/100M adaptive
5 Audio Format MP3、MP2、PCM、ADPCM
6 Audio sample rate 8kHz～44.1kHz, 16bit
7 Transmission bit rate 16kbps-352kbps
8 Signal to noise ratio >55dB
9 Frequency response 20Hz-16KHz，±2 dB
10 Distortion At 1 KHz frequency distortion ≤3%,
11 Short circuit input Dry Contact
12 Short-circuit output Dry Contact
13 Audio output Linear stereo output interface
14 Product Size 160×110mm
15 Working temperature -10℃～60℃
16 Working humidity 10%～90%
17 Rated voltage DC12V
18 Power ≤5W