Spon NAS-8521A User manual

1
Hardware interface description
【Front panel】
①Power light：
The red normal on after power on.
③Data port
④Reset key
②Status light
Off-line state：Red flash slowly
Free-state：Green normal on
Intercom state：Red flash fast
Broadcast state：Green flash fast
【Back panel】
①Power interface: Connect 12V
direct-current power
②Audio output interface: it`s output audio
source signal, it can access the active
speakers or amplifier to play background
music.
③Record output interface: it`s output the
intercom audio signal, it can access the
record equipment for recording (it can be
synchronized with the video recording)
④Panel connector: connect the intercom
panel
⑤Internal power amplifier output port
(optional): supply two power amplifier
output channels, the power amplifier can
output while the terminal receiving
broadcast or playing background music.
⑥Reset interface: It can connect the
external device to remote reset terminal.
⑧Alarm output port:
○-NO: Alarm output normal open port, it
will be closed when the external triggered
it,
●-NC: Alarm output normal close port, it
will be disconnected when the external
triggered. Alarm output can be triggered
by the server software, it also can be
triggered by alarm input. Alarm output
port can connect the external device to
cooperate the server linkage effect.
⑨System configuration button: It can
play IP information by pressing this
button when off line, meanwhile the
button will power on ,it can restore the
factory settings、or access the forced
upgrade mode.
⑩Network input port: Use the network
cable to connect server and terminals.

2
⑦G-A is alarm input 1, G-B is alarm input
2, when two pins is short circuited, the
terminal will make special operation
automatically, the alarm input can connect
the external device to cooperate with
server linkage function.
⑪SD card socket: It can insert SD card,
support SD card memory the door prompt
tone、remote broadcasting audio、call
prompt tone and firmware information.
⑫Grounding switch.
Connection diagram
Appearance size and installation picture（Unit: mm）
Configure IP network intercom terminal
Forced configuration network parameters
（1）·Use the couplet cable connect the computer (installed with IP audio terminal
configuration tool) and terminal.
.From [optical disk:\software tool\]directory to find and run “IP audio terminal
configuration tool”，after initialed it，enter the default password“123456”
（2）From the right menu choose 2nd [forced way configure], and fill the correct
parameter in the [terminal parameter],click "send parameters" button to complete the IP
Note: If you need more information please refer to the user manual.

1
parameters setting.
Visit WEB interface
（1）Enter the terminal IP address(eg:192.168.1.101, the IP add can be get under it`s
not plug the network cable) , then press enter button.
（2).Enter the user name and password in web page (the default are admin).
Specification、function unit、and parameters
Power supply input
DC12V/2A
Power consumption
≤23W，Standby power consumption≤2W
Interface
Network input port; alarm input port; alarm output port;
power input port; audio output port; reset interface;
record output port; SD card slot; intercom panel interface
Support network
communication protocol
TCP/IP、UDP、SIP、ARP、ICMP、IGMP protocol
Network chip rate
10/100Mbps
Audio sampling
8kHz～44.1kHz，16bit，8kbps-320kbps
S/N
>90dB
Frequency response
20Hz-16KHz
Working temperature & RH
-10℃～55℃，≤90%RH(non condensing)
Dimensions& weight
210x155x44.5mm，0.5kg
Manlfunction Test
Fault phenomenon
Reason& fault exclude
Why the state red light
flash slowly?
1.check the server firewall status;
2. The terminal IP address setting is correct or not
Why the terminal can’t
call the center, it only can
hear several “honk”?
The server terminal settings appear problems, please check
the software server calling mapping sequence is correct or
not.
Packing list