Terra OD007H Скачать руководство пользователя страница 3

Technical characteristics

Optical input 

wave lenght for receiver 

1540-1560 nm 

  

wave lenght pass 

1260-1360 nm & 1480-1500 nm

  

connector 

see ordering information

  

insertion loss 

< 0.4 dB

  

isolation 

> 30 dB

  

return loss COM 

> 50 dB

  

return loss BOSA 

> 40 dB

  

input level * (AGC range) 

-15 ÷ 0 dBm

  

noise current density

 

≤ 7.0 pA/√Hz

 RF output 

frequency range 

47-2400 MHz

  

impedance 

75 

  

return loss 

≥ 14 dB at 40 MHz -1.5 dB/oct., but not less 10 dB

  

frequency response 

3 dB (precorrection)

 

± 1.5 dB

Output level (AGC range) for 30 SAT IF transponders 

70 dBµV** (per transponder);   85 dBµV (total) 

Supply voltage   

10 V ÷ 20 V

Current consumption 

70 mA max.  

Operating temperature range 

-20

o

 ÷ + 50

o

 C

Dimensions/Weight (packed) 

90x27x19 mm/0.08 kg

Installation instructions

Read the product description and safety instruction first.
Fiber installation should be done very carefully. Bending radius of fibers must be not less 25 mm. An optical connector and 

adaptors should be cleaned before connecting them. Power on the receiver after all cables have been connected correctly. 

Operating

The receiver output level indicator formed from LED:
 Glowing 

green

:

 output level constant 70 dBµV (AGC range), optical input level is in range -15 ...0 dBm;

 Glowing 

yellow

:

 level too low < 70 dBµV, input signal is out AGC range;

 Glowing 

red

:

 level too high > 70 dBµV, input signal is out AGC range.

*  optical input signal 4.9% OMI, 1550 nm, 30 SAT IF transponders
**  at frequency 1300 MHz

k

Powering from STB (Set-Top Box).

Draugystes str. 22, LT-51256 Kaunas, Lithuania, tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55 

E-mail: 

[email protected]

http://www.terraelectronics.com

STB

RF

DC

OPTICAL

Optical receiver OD007H

10-20V

70mA

DC IN

DC IN

RF OUT

high

OK

low

RF

signal

level

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