Page 1
Refs. 2333, 233310 2334, 233410 234304, 234310 2335, 2336 User manual Optical Fiber Transmitter and Receiver with return path channel w w w . t e l e v e s . c o m...
Optical Fiber Transmitter and Receiver Important safety instructions: Safety measures Connect the cable to the device, carefully slotting the guides together for both connectors, pushing the connector all the way in. Warning.- General installation conditions: This product emits an invisible laser beam. Avoid contact with laser radiation.
02340088 000 LED ON Indicates Optical power delivered by the equipment from: (5,5 & 6,5 dBm => refs. 2333 & 2334) Caution TX Optical PW (9,5 & 10,5 dBm => refs. 233310 & 233410) The use of control or adjustment devices, or operating parameters (3,5 &...
Optical Fiber Transmitter and Receiver 4.3. Power Supply Unit Input power connectors (1) Masa Status LED UPSU120 24V: OK 0V: Overloading or shortcircuiting UPSU120 Mains input 230V~ NOTE: You must use both outputs of the source when consumption exceeds 4 amps on either of them (maximum current for each output)
5. Examples of application Opt. Link Gain Gain Gain EINn EINn EINn atenuattion at 870 MHz at 1.5 GHz at 2.15 GHz Correct use of the devices. (dBm/Hz) (dBm/Hz) (dBm/Hz) (dB) (dB) (dB) (dB) 16.2 -150.4 17.0 -150.4 17.4 -146.4 12.3 -148.4 13.13...
Page 16
Optical Fiber Transmitter and Receiver Example 1 link in the value of 0.6 dB, which would correspond =Vin - EIN EINn =-139.9 dB/Hz. = -26 dBm -(- 72.9 dBm) = -26+72.9 Calculate the C / N at the output of the optical Apply the formula [1] and we obtain: Then, C/N = 46.9 dB...
Page 17
Now we do the calculation for digital satellite • The 2 fiber optic connectors represent 0.8 dB. For the TV band, in the column Gain at 807 MHz channels, following the same process above, but Therefore, the total losses of the fiber optics are: EINn (TV)= -122.8 dBm/Hz by looking at the column Gain at 2 .1 GHz of the 0.4 + 16 + 0.8 = 17.2 dB...
Page 18
Optical Fiber Transmitter and Receiver G(2.1 GHz)= -16.3 dB RETURN CHANNEL Therefore, the RF signal level delivered by the For the return channel transmitter, the table of receiver is: attenuations, link gain and equivalent noise is: Vout (dBµV) = Vin (dBµV) + G (dB) rcvr xmtr...
6. Tables for attenuation and gain installations calculation Refs. 2333, 2334 (TRANSMISSION) Ref. 2334 (RETURN) Opt. Link Gain Gain Gain Link attenuat. Gain at 30 MHz EINn Popt IN in RX EINn EINn EINn atenuattion at 870 MHz at 1.5 GHz at 2.15 GHz...
Page 20
Optical Fiber Transmitter and Receiver Refs. 233310, 233410 (TRANSMISSION) Ref. 233410 (RETURN) Opt. Link Gain Gain Gain Link attenuat. Gain at 30 MHz EINn Popt IN in RX EINn EINn EINn atenuattion at 870 MHz at 1.5 GHz at 2.15 GHz (dB) (dB) (dBm/Hz)
Page 21
Ref. 234304 (TRANSMISSION) Opt. Link Gain Gain Gain Popt IN in RX EINn EINn EINn atenuattion at 870 MHz at 1.5 GHz at 2.15 GHz (dBm) (dBm/Hz) (dBm/Hz) (dBm/Hz) (dB) (dB) (dB) (dB) 14,3 -149,7 -148,8 -146,6 13,4 -149,3 -148,5 13,1 -146,5 12,4...
Page 22
Optical Fiber Transmitter and Receiver Ref. 234310 (TRANSMISSION) Opt. Link Gain Gain Gain Popt IN in RX EINn EINn EINn atenuattion at 870 MHz at 1.5 GHz at 2.15 GHz (dBm) (dBm/Hz) (dBm/Hz) (dBm/Hz) (dB) (dB) (dB) (dB) -142,9 -142,4 -141,2 -142,3 -141,9...
Page 23
Guarantee Televés S.A. offers a two year guarantee, beginning from the date of purchase for countries in the EU. For countries that are not part of the EU, the legal guarantee that is in force at the time of purchase is applied.
Need help?
Do you have a question about the 2333 and is the answer not in the manual?
Questions and answers