• Table of contents
• 2.3 Main Parameters
  • 2.3.1 Optical link
  • 2.3.2 Coaxial cable

2.3 Main Parameters¶

This part lists the main specifications and highlights the main parameters to compare an optical link with a coaxial cable

2.3.1 Optical link¶

The optical link consists of :

• Optical transmitter OTX1910 : it modulates the intensity of the optical 1320 nm wavelength with the RF input signal ;
• Monomode fiber 9/125 OS2 (to avoid dispersion effect) to optical signal on a distance up to 10 kilometers ;
• Optical Receiver ORX1900 : it detects optical wavelength intensity modulation and outputs the RF modulating signal.

Parameter	Unit	Measurements
Frequency	MHz	700	1000	1500	2000	2300
Optical Link Noise Figure	dB	30.9	30.1	31.3	32.6	33.4

Optical transmitter OTX1910	min	typ	max	Unit	comments
Supply	9	12	14	V
Current consumption	-	-	450	mA
RF Input Connector	75 Ohm F-type

RF Return Loss 14 - - dB
RF Maximum Input Level - - 15 dBm
RF Input Dynamic Range -65 - -10 dBm
RF Input Frequency 700 - 2300 MHz
Optical Connecctor LC/PC single mode
Optical signal wavelength - 1310 - nm
Optical power level - 1 - dBm

2.3.2 Coaxial cable¶