User Manual TOST and TOCT
307790 – 307791
Release 1.1
Signal Level LED:
The signal level LED indicates the level of the signal with different colours:
Orange
:
Signal level is too low.
In this case you should amplify the signal with an external amplifier.
Green
:
Signal level is within the AGC supported range.
Red
:
Signal level is too high. You need to attenuate the signal with external attenuator(s).
NOTE: Dish alignment, as well as the LNB skew and focal length adjustment to achieve optimum
signal quality at the input are critical to a successful installation. As is the use of the Terrestrial
Channel Processor (TMB 2500 – TOCT only) to filter, level and equalise the Terrestrial input.
Set DC Supply and Laser Diode:
With this switch you can set the DC (18V) supply to the RF input and switch off the Laser Diode (LD)
in order to measure each optical signal separately. To measure the signal strength of a certain
wavelength, you need to switch off both of the other Laser Diodes.
Don't forget to switch all LDs back on after measurement.
The LED is off if no DC is supplied to the RF input and if no DC is supplied to the Laser Diode.
If no DC is supplied to the laser diode, the related signal is not converted into an optical signal.
Please make sure to switch on at least the laser diode for proper operation.
The colour of the LED appears
Green:
if the Laser diode is switched on and the related output voltage is off.
Orange:
if the Laser diode is switched on and the related output voltage supplied to the RF
input is on.
Flashing
Green
/
Orange:
if DC is supplied to the RF input and the device has recognized a short circuit.
Optical output:
The optical transmitters each have an optical output power of +9 dBm per wavelength.
For TOCT, make sure to select the right number of splits using the split switch.
