Coax Optical Transmitter

The Triax OTXS-xx optical transmitter converts electrical CATV signals into intensity modulated optical signals for transmission via optical fibre cables.

The transmitter is built into a 19”/1 HU cabinet. Optical output, RF test point, interfaces for RS232 and Ethernet are located on the front panel in addition to a display and 3 buttons for handling. The RF input and the mains input are situated on the rear panel.

The transmitter has the ability to be remote controlled via Ethernet using e.g. Internet Explorer or Firefox. SNMP monitoring read only is implemented.

The modulation of the laser diode is gain controlled depending on the number of channels so the optimum modulation index is always ensured. Additionally the transmitter has the facility to adjust the modulation manually or via remote control.

Signal distribution over long distances (from 200 meters upto 10-15 km), and splits into several directions if needed can be kept fully passive in fibre optic cables. The fibre optic cable is then terminated at fibre optic receiver nodes (ORB 9X1), serving as “islands” of coax points, from where a traditional coax based MATV/CATV installation can be realised.

• 1310nm transmitter in 19” rack for 47-862 MHz RF signals
• RF transmitter with DBF high linearity, direct modulated, cooled laser
• Output laser power (6-20 mW, see below)
• Front panel LCD provides monitoring information
• Front panel buttons for manual setup
• RJ45-Ethernet interfaces (SNMP)

Laser power (mW versus dBm):

mW:  6     8  10  12  16  20

dBm: 7.8  9  10   11  12  13