- Fiber optic transmission, immune to EI and RFI
- Standards compliant for power substation installations
- Single power supply range from 48VDC to 230VAC
- 19″ mounting with only 200mm depth
The 21-180 is a synchronous 64kbps modem for codirectional clock environments that can be used to extend the reach of balanced G.703 interfaces up to 2km allowing for a cost effective transmission without electromagnetic interference and signal degradation.
The modem can use the incoming clock from the G.703 interface and propagate it down the fiber or use its internal clock source running at PDH accuracy. The modems automatic clock phase adjustment accommodates for any fiber round trip delay.
Fiber optical link
Dimensions and Weight