Industrial Telephone Optical Terminal
The Industrial Telephone Optical Terminal provides 2 telephone interfaces and 2 shared 100M Ethernet interfaces over 1 fiber channel. The Ethernet interfaces of the 2-channel telephone optical terminal can be arbitrarily divided into VLANs. This terminal extends voice and data services to various user areas, serving as a substitute for remote small offices, enabling cross-boundary number assignment, and alleviating the load on switching offices. In urban areas, it overcomes the limitations of twisted-pair cables in bandwidth and transmission distance, expanding the service range of switching offices. This device is widely used in telecom data services, power utilities, banking, public security, military, schools, highways, and other sectors for public telephone network access and dedicated line information transmission.
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Overview:
The Industrial NT202B Telephone Optical Terminal extends voice and data services to various user areas, serving as a substitute for remote small offices, enabling cross-boundary number assignment, and alleviating the load on switching offices. In urban areas, it overcomes the limitations of twisted-pair cables in bandwidth and transmission distance, expanding the service range of switching offices. This device is widely used in telecom data services, power utilities, banking, public security, military, schools, highways, and other sectors for public telephone network access and dedicated line information transmission.
 optical channel.
- The optical terminal provides 2 standard telephone interfaces with caller ID functionality.
- The optical terminal provides 2 groups of shared 100M Ethernet channels, and the 2 groups of Ethernet interfaces can be arbitrarily divided into VLANs.
- Equipped with comprehensive alarm indication functions.
Technical Specifications:
Optical Interface
Interface Type | FC (SC, etc. customizable) | Fiber Mode | Single-mode (Multi-mode optional) |
Fiber Rate | 155bps±50ppm | Wavelength | 1310nm |
Transmit Power | -2～-11dBm | Receiver Sensitivity | Better than -36dBm |
Ethernet
FXO/FXS Interfaces
Audio Frequency Range | 300Hz~3400Hz | Impedance | Triple complex impedance 200Ω+560Ω//0.1μF |
Compression Ratio | ITU G.711 A-law | Loop Current | 25mA/channel |
Power Supply and Power Consumption
Power Supply | DC5 or AC 220V | Power Consumption | 15W |
Environmental Conditions
Operating Temperature | 0°C ~ +50°C | Humidity | 95% non-condensing |
Product Dimensions
Length×Depth×Height | 124×64×99 (mm) |
