IP Audio Intercoms


Item No.: NAS-8523C
Mainly used for audio intercom in bank vault, prison, dust-free workshop, parking lot and other special application environments.
Description Specifications Wiring Diagram Dimensional Drawing

● Mainly used for security audio intercom in bank vault, prison, dust-free workshop, parking lot and other special application environments.
● Supporting embedded installation or wall-mounted installation.
● Adopting 6mm thickness aluminum panel with special screws, effectively against collision, puncture or other man-made damages.
● Built-in 3W speaker and microphone, available for hands-free calls.
● Single button (dual button) design, applicable to consulting service, emergency intercom, being able to realize full duplex intercom.
● Built-in digital audio processor and digital noise reduction technology, effectively improve the voice collection distance and sound quality.
● Equipped with 1×Alarm Input interface to be connected with emergency button, infrared detector or smoke detector.
● Equipped with 1×Alarm Output interface for external linkage with alarm light or electronic door lock.
● Supporting tamper alarm function, being able to activate warning siren whenever the equipment has been forcibly damaged.
● Compatible with standard SIP (Session Initiation Protocol), can be registered to VoIP telephone system (mainstream IP PBX such as CUCM, Asterisk, Yealink, etc.) independently.
● Supporting PoE (Power over Ethernet).
● Supporting initiating & receiving offline intercom without centralized management server software.
● Equipped with standard RJ45 interface, accessible to the system wherever Ethernet is available, supporting cross-segment and cross-router.

● Optional: NAC-11 waterproof case (protection grade could reach IP54).



User can easily configure its web parameters using its IP address after connecting it into the existing LAN/WAN network.

When you first log into the web GUI, after setting the IP address of the server (the PC on which SPON™ XC-9000 software was installed), you can manually assign a static IP address to the intercom. Apart from the settings of network parameters, you can also use the web GUI to configure other parameters of the intercom such as intercom input & output volume, automatically answering , network adaptability, web interface login username & password, firmware upgrade, etc.

>>Integrated Relay output and Relay input 

The SPON 8523C IP POE WALL MOUNT INTERCOM STATION has left a relay input which can connect an external emergency button  infrared detector or smoke detector. At same time the relay output can integrate with a alarm light for making alrming during emergency event occurs.

Detailed Setup Procedures of Event-Triggered Emergency Notification Task:
① Creat a new scheme on SPON™ XC-9000 management software and rename it as "Emergency button to trigger Alarm light".
② Creat a new task in the new scheme.
③ Set the trigger of the new task to be [Event], set the event type to be [Alarm], and choose the designated relay input on 8523C IP POE wall mounted intercom station as the event terminal.
④ Set the operation of the new task to be [Command], set the command type to be [Alarm], choose 8523C IP POE wall mounted intercom station as [Alarm ID], and choose the 8523C IP POE wall mounted intercom station as the target terminal.

>>Connecting external active speaker 

The 8523C IP PoE wall mounted intercom station is built in 3W speaker inside. If it is installed at a noisy environment , you can also connect an SPON external speaker NAC-151 or the active speaker from the third party via its line out interface to amply the sound. The active speaker is only used for amplying the annoucement , if you don't want to hear from active speaker when you communicate with the control room , you can set  the  device's intercom audio output way as  that from buit-in speaker and set the PA audio output to  the active speaker.


The 8523C IP PoE wall mounted intercom station is compatible with standard SIP (RFC3261) protocol, it can be directly registered on mainstream 3rd party VoIP telephone system for live paging announcement.

Power Supply: DC24V/1A、PoE IEEE802.3af
Standby Power Consumption:≤3W

S/N (Signal-to-Noise) Ratio:Broadcast-Speaker:81dB、Broadcast-Line:88dB、Line in-Record out:82dB
Audio Sampling & Bit Rate:22.05KHz 16bit,8kbps-320kbps
Built-in Speaker(Power output):3W
Built-in Speaker(Impedance):8ohm
Built-in Mic:Electret Microphone
Built-in Mic(Sensitivity):-45±3dB
Built-in Mic(Directivity):Omnidirectional
Harmonic Distortion:<1%
Frequency Respinse:40Hz~10KHz(WAV)、50Hz~20KHz(MP3)

Network I/F:10BASE-T/100BASE-TX RJ45
Configuartion Method:Web Interface

Mounting Method:Wall-mounted 
Installation Environment:Dry Indoor Locations
Operating Temperature:-20℃~55℃ (-4℉~131℉)
Operating Humidity:≤90% RH non-condensing
Body Material:Aluminium alloy 
Back Shell Material:Steel
Product Dimension:101x191x46mm
Product Weight:0.95 kg
Product Warranty:2 Years

1×Power Adaptor(24V/1A)
4×Allen Screw(M3*12)
1×Allen Wrench(2.5mm)
1×Wiring Terminal(3.5-2P)
1×Wiring Terminal(3.5-3P)
4×Half Round Head Philips Screw(ST4*25)
1×Red-Black Line(X2-80)
1×Red-White Line(X12-100)
1×Quality Certificate&Warranty Card
1×Quick Installation Guide


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Changsha SPON Communication Technology Co., LTD was established in 2004 with over 20000 Square meter workplace . It is a national high-tech enterprise which has own core intellectual property and innovative research & development capabilities. We have rich experience in IP video and audio products and PA system products.
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