Description:
The one-button for help intercom terminal can initiate an intercom call to the command center.
Features:
*  With embedded rectangular design, simple and smooth appearance, sophisticated lines and durable quality.
*  With embedded computer technology and DSP audio processing technology.
*  One button ask for help, can call the intercom mic of the duty room. Quick connection and easy operation
*  Built-in microphone with high sensitivity, with wide area for sound collection, and high sound reproduction.
*  Built-in 3W full-range monitor speaker, with loud and clear voice.
*  Support hands-free calling and broadcast receiving.
*  Support local electronic door lock and local alarm indicator ( select 1 from 2 options).
*  Support 2-channel local short-circuit signal input; linkage with 1 short-circuit output for monitoring short circuit linkage.
*  With crimp DC power supply interface, external connect to 24V power adapter or centralized power supply.
*  Two installation methods: embedded and surface mounted.
*  Waterproof degree: Ip55.
*  With 1 line output, for connecting active speaker to achieve voice paging.
*  Support short-circuit signal input of security equipment, also supports customized setting on the time plan of patrol and sign in for the local area security.
*  Support panel button linkage to 1 short-circuit output or ring alarm, for monitoring short-circuit linkage or emergency tips.
*  Support disassemble panel alarm function, at the same time to link the short-circuit output of multiple devices from local and remote, and connect to alarm or police alarm horn speaker.
*  The system supports remote hardware updating to the terminals, no need to go to the local terminal site, save a lot of maintenance work.
Specifications:
| Model | T-7703 | 
| Network Interface | Standard RJ45 input | 
| Transmission rate | 100Mbps | 
| Protocol Support  | TCP/IP,UDP | 
| Audio Format | MP3 | 
| Audio Mode | 16bit CD sound quality | 
| Sampling Rate | 8K~48KHz | 
| MIC Input sensitivity | 10mV  | 
| Frequency Response | 317Hz~3.4KHz  | 
| Overall Power Consumption | 10W | 
| THD | ≤1% | 
| SNR | >65dB | 
| Operation Temperature | -20℃~60℃ | 
| Operation humidity | 20%~80% Relative humidity, non-condensing | 
| Input Power | ~190-240V 50-60Hz(Adapter); DC24V/1A | 
| Dimension | 132×81×39mm | 
| Weight | 0.5Kg |