• 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.

Optical transmitter OTX1910

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

Fiber Monomode 9/125 OS2 (G.652.D ITU-T compliant), low dispersion at 1320 nm

Fiber Optic	min	typ	max	Unit	comments
Optical Loss	-	0.3	-	dB/km	1320 nm

Optical receiver ORX1900

Optical receiver ORX1900	min	typ	max	Unit	comments
Supply	9	12	14	V
Current consumption	-	240	-	mA
Optical Input Connector	LC/PC single mode

Optical input signal wavelength range 1270 1310 1610 nm
Optical input signal level range -6 - 4 dBm
RF Output Connector 75 Ohm F-type
RF Input Frequency 700 - 2300 MHz

2.3.2 Coaxial cable¶