Spon NAS-8502B Installation Instructions

IP Network Paging Microphone Installation Instructions

Specifications, Functional Unit and Parameters

Power Voltage DC9V/2.5A
Speaker 8Ω/3W
Consumption ≤5W
Line Output Rated Voltage 1V
Audio input; Audio output; Power input; Network
Interface
input; Mic input
Network Protocol TCP/IP、UDP、ARP、ICMP、IGMP protocol
Network Chip Rate 10/100Mbps
Audio Coding MP2/MP3/PCM/ADPCM
Audio Sampling/ Transmit
8kHz～44.1kHz， 16bit，8kbps-320kbps
Rate
SNR ≥80dB（A Weighted）
Frequency Range 60Hz-10kHz
LCD TFT 1.8'LCD 128x160
Total harmonic distortion ≤0.3%，1kHz

Malfunction Test

Fault phenomenon
1. It`s required to close all firewall or with data
interception function software before open the
Why the terminal always
software server
shows "offline"?
2. Network card not compatible with terminal.
3. Using other computer to scan the machine.
Why it appear "terminal
Appearing this warning information, it's usually the
network services (UDP)
local
start fail" warning in the
disconnected, please connect the local network
process of start services
cable well and exit the software, then restart it.
software?

Packing Lists

Cause and ways
server network connection has been
1