Products Description
The NS-K33T is a powerful Network Board for Speakers designed for SIP-based audio communication and IP speaker integration. This compact yet feature-rich speaker network board supports standard SIP and VoIP protocols, making it compatible with a wide range of SIP servers and VoIP devices. With a built-in 15W amplifier and support for 8Ω speakers, the NS-K33T enables high-quality two-way intercom communication, scheduled broadcasting, pre-recorded message playback, and HTTP control. It supports both RJ45 PoE and tail cable PoE power supply options, providing flexible installation for different audio projects. As a professional SIP PCB, it is ideal for upgrading traditional speakers into smart IP audio devices.
Built for reliable and flexible audio applications, the NS-K33T Network Board for Speakers features rich interfaces including MIC input, dual speaker outputs, AUX input, alarm input, IO output, headset output, and DC 12V power interfaces. The headset output can also connect to an external higher-power amplifier for expanded audio coverage. Supporting Web configuration, firmware upgrades, and multiple audio codecs such as OPUS, MP3, G.711, and G.722, this speaker network board delivers stable network audio transmission over SIP, RTP, RTSP, and other protocols. Whether used for IP paging systems, SIP intercom solutions, or network speaker projects, the NS-K33T Network Board for Speakers offers a reliable and professional audio solution.
Key Features
● Standard SIP and VoIP compatible SIP PCB
● Built-in 15W amplifier for 8Ω speakers
● Support two-way intercom communication
● Support RJ45 PoE and tail cable PoE power supply
● Dual speaker output interfaces
● MIC input and headset output supported
● Headset output supports external higher-power amplifier connection
● Support alarm input and IO output
● Support pre-recorded messages and scheduled playback
● Support HTTP control and Web configuration
● Support firmware upgrade via Web
● Compact design, ideal for IP speaker integration
Specifications
|
Protocol |
SIP, HTTP, HTTPS, IPv4, TLS, RTSP, RTP, RTCP, DHCP, DNS, NTP, TCP, UDP, IGMP, ICMP, ARP |
|
Audio Codec |
OPUS 48KHz, MP3 44.1KHz, G.722-ADPCM 16KHz, G.711-PCMU 8KHz, G.711-PCMA 8KHz, G726 8KHz, GSM 8KHz, LPCM-16bit-Stereo/Mono 44.1kHz |
|
Network Interface |
10BASE-T/100BASE-TX |
|
Interface |
1 × RJ45, 1 × Ethernet Port, 1 × AUX input, 2 × DC 12V Power Input, 1 × IO output, 1 × Audio input, 1 × Alarm input, 1 ×Reset, 1 × 12V Output, 1 × MUTE, 1 × 3.3V output, 1 × Backup, 1 × NET, 1 × Headset Output, 1 × MIC input, 1 × Speaker output |
|
Power Supply |
PoE, DC 12V |
| Built in Amplifier | 15W |
|
Speaker |
8Ω |
|
Operating Temperature |
-30℃ ~ +60℃ |
|
Operating Humidity |
5%-85% |
|
Function |
Compatible with VoIP devices and SIP server, support two way communication, pre-recorded messages, schedule play, HTTP control |
|
Application |
Speaker |
|
Size |
70mm × 80mm × 17mm |
|
Others |
Support Web Browser Settings, Firmware Upgrade |
Interface Details
FAQ
Q1: What is the NS-K33T mainly used for?
A: The NS-K33T is a Network Board for Speakers designed for converting traditional speakers into SIP-based IP speakers for paging, intercom, and broadcast systems.
Q2: Does the NS-K33T support PoE power supply?
A: Yes, it supports both RJ45 PoE and tail cable PoE power supply, as well as DC 12V input.
Q3: Can the NS-K33T work with standard SIP servers?
A: Yes, this SIP PCB is compatible with standard SIP and VoIP systems.
Q4: Does it support external amplifiers?
A: Yes, the headset output can connect to a higher-power external amplifier for larger audio coverage applications.
Q5: Is Web configuration supported?
A: Yes, users can configure and upgrade the device firmware through a Web browser easily.
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