Televes 233306, 233311 User Manual
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Televes 233306, 233311 User Manual

Televes 233306, 233311 User Manual

Optical fiber transmitter and receiver with return path channel
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Optical Fiber Transmitter and Receiver
EN
with return path channel
Refs. 233306, 233311
233411, 234305
234311, 233501
233601
User manual
w w w . t e l e v e s . c o m

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Summary of Contents for Televes 233306, 233311

  • Page 1 Refs. 233306, 233311 233411, 234305 234311, 233501 233601 User manual Optical Fiber Transmitter and Receiver with return path channel w w w . t e l e v e s . c o m...

  • Page 3: Table Of Contents

    Optical Fiber Transmitter and Receiver Index 1. Technical specifications ........................2. Ordering information ........................... 3. Mounting ............................. 3.1. 19” rack mounting ........................4. Product description ..........................4.1. Optical transmitter ........................4.2. Optical receiver ......................... 4.3. Power supply unit ........................5. Example applications .......................... 6. Tables for attenuation and gain installations calculation ..............

  • Page 4: Safety Instructions

    Optical Fiber Transmitter and Receiver Safety instructions: 3. Heed Warnings - All warnings on the product and A product and cart combination should be in the operating instructions should be adhered to moved with care. Quick stops, excessive force and uneven surfaces may cause the product and 4.
  • Page 5 16. Replacement Parts - Ensure that repairs are routed correctly to avoid damage including pinching, connected to cables to prevent the laser beam from excessive bends, or compression. performed by qualified technicians and that only damaging the eyes. manufacturer supplied or authorized parts are used. Do not turn the transmitter on without a fiber optic 12.

  • Page 6: Technical Specifications

    Optical Fiber Transmitter and Receiver 1. Technical specifications Optical transmitters 233306 233311 233411 234305 234311 Forward channel 54 - 2150 Frequency range Return channel ---- ---- 5 - 42 ---- ---- 54 - 870 MHz Maximum input level for dBmV CSO &...
  • Page 7 Optical receivers 233501 233601 Forward channel 54 - 2150 Frequency range Return channel ---- 5 - 42 54 - 870 MHz Maximum Output Level for dBmV CSO and CTB >= 60dB 950-2150 MHz Output level regulation margin (in 2 dB steps) 0 - 18 Return path maximum input level dBmV...

  • Page 8: Block Diagram

    Optical Fiber Transmitter and Receiver 1.5. Amplifier technical specifications Frequency range 46 ... 862 Connector type “F” Gain 44 ± 2.5 Powering Amplifier 5575 Regulation margin Consumption at 24 V Output level (at 60 dBc): dBmV 45 (42 CH CENELEC) Test port 1.6.
  • Page 9 Relay 233501 233601 Relay Forward path Return path control control FO OUTPUT Return path RF  FO Return path Converter attenuator ref. 233601 Forward path FO  RF Forward path Fwd path / Rtn path RF OUTPUT Fwd path FO INPUT attenuator Converter RF INPUT Rtn path...

  • Page 10: Ordering Information

    Optical Fiber Transmitter and Receiver 2. Ordering information When ordering, please, specify reference number as per table below. Fiber Optics SMATV 233306 T.0X Optical Transmitter (1310nm/6dBm) 563701 T.0X 8PSK-QAM TWIN Transmodulator 233311 T.0X Optical Transmitter (1310nm/10dBm) 555902 T.0X CDC Headend Manager IP 233411 T.0X Optical Transmitter (1310nm/10dBm) / Return path receiver 233501...

  • Page 11: Mounting

    3. Mounting 3.1. 19” rack mounting F.O. transmitter T.0X Headend TEST (-12dB) TX OPTICAL PWR ALARM 5301 RF IN LEVEL ADJ. LASER APERTURE Invisible laser radiation. Do not watch directly with optical instruments. Class 1M laser product. Optical output 563901...

  • Page 12: Product Description

    Optical Fiber Transmitter and Receiver 4. Product description 4.1. Optical transmitter 1. Test output (-16dB) 2. RF Input 54-2150 MHz (forward path) TEST TEST (-12dB) (-12dB) 5 - 42 MHz (return path) 3. Power 4. Power LED 5. Forward path power LED TX OPTICAL PWR TX OPTICAL PWR 6.

  • Page 13: Optical Receiver

    4.2. Optical receiver 1. Power 2. Power LED 3. Forward path power LED 4. Return path power LED 5. Alarm connector TX OPTICAL PWR RX OPTICAL PWR RX OPTICAL PWR 6. Return path optical output ALARM ALARM 7. Forward path optical input 8.

  • Page 14: Power Supply Unit

    Optical Fiber Transmitter and Receiver 4.3. Power Supply Unit M4 nut Star washer M4x10 Connectors to power modules (24V Mains 108 - 132V~ 50/60Hz Grounding connection LEDS 24V: OK 0V: Overload or short circuit NOTE: Maximum output is 4 amps. Use second output if more than 4 amps is needed.

  • Page 15: Example Applications

    5. Example applications Opt. Link Gain Gain Gain EINn EINn EINn attenuation at 870 MHz at 1.5 GHz at 2.15 GHz These technical specifications are maximums and (dBm/Hz) (dBm/Hz) (dBm/Hz) should be complied with appropriately. (dB) (dB) (dB) (dB) 16.2 -150.4 17.0 -150.4...
  • Page 16 Optical Fiber Transmitter and Receiver Example 1 the row of 8 dB of loss calculated for the optical follows: fiber link in the value of 0.6 dB, which would =Vin - EIN correspond EINn =-139.9 dB/Hz. Calculate the C/N at the output of the optical = -26 dBm -(- 72.9 dBm) = -26+72.9 receiver (C/N link), in the installation of the figure Apply the formula [1] and we obtain:...
  • Page 17 Now we do the calculation for digital satellite • The 2 fiber optic connectors represent 0.8 dB. For the off-air/CATV band, in the column Gain at channels, following the same process above, but 807 MHz Therefore, the total losses of the fiber optics are: by looking at the column Gain at 2 .1 GHz of the EINn (TV)= -122.8 dBm/Hz 0.4 + 16 + 0.8 = 17.2 dB...
  • Page 18 Optical Fiber Transmitter and Receiver EINn(SAT) = -125.4 dBm/Hz RETURN CHANNEL G(2.1 GHz)= -16.3 dB For the return channel transmitter, the table of attenuations, link gain and equivalent noise is: Therefore, the RF signal level delivered by the receiver is: Vout (dBmV) = Vin (dBmV) + G (dB)

  • Page 19: Tables For Attenuation And Gain Installations Calculation

    6. Tables for attenuation and gain installations calculation Refs. 233306 (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) 16,2 -150,4...
  • Page 20 Optical Fiber Transmitter and Receiver Refs. 233311, 233411 (TRANSMISSION) Ref. 233601 (RETURN) Opt. Link Gain Gain Gain Link attenuat. Gain at 30 MHz EINn Popt IN in RX EINn EINn EINn attenuation at 870 MHz at 1.5 GHz at 2.15 GHz (dB) (dB) (dBm/Hz)
  • Page 21 Ref. 234305 (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. 234311 (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 Product(s) be returned to Televes unless otherwise specified. without a return authorization. (B) Televes shall, free of charge and in its sole discretion, either repair, replace with a new or factory reconditioned (E) Any refund to the Purchaser, shall be limited to the...
  • Page 24 televes.com...

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