Describe Product

The S0T-03-1G-C-**dBm downstream optical transmitter supports 870/1003/1218Mhz band and the DOCSIS 3.1 standard. The output optical power is from +6 dBm to +15 dBm available. It can be used for optical fiber transmission of downstream analog TV signals, digital television signals and CMTS data signals in HFC network. It has patented pre-distortion circuit, high CNR and low distortion.

Specifications

Schematic diagram

SOT-03-1G-C-dBm_1

Specifications

Characteristics	Unit	Value/Performance
Optical Parameters
Laser Type	-	DFB Laser Module (OC-48 pinout compatible), with Isolator, with CNR = 51 dB min., CSO = 60 dB min., CTB = 65 dB min., with brand name from G7/EU countries
Center Wavelength	nm	1310 ± 10
Connector	-	SC/APC (sleeve material: ceramic, connector with shutter)
Output Power	mW	≥ 6.3 (8dBm) or ≥ 20 (13dBm)
RF Parameters
Input Level	dBmV/ch	15 to 25, or larger
RF Amplifier Technology	-	1 * CATV GaAs or GaN Push-Pull and 1 * CATV GaAs or GaN Power-Doubler Hybrid Amp. Modules. All have brand name from G7/EU countries
Gain Control Range	dB	0 ~ 10, or larger
Input Impedance	Ω	75
Return Loss	dB	≥ 16 dB
Bandwidth	MHz	82 to 1000, or larger
Flatness	dB	≤ ± 0.75
Channel Loading	-	77 NTSC / 60 PAL channels + 320 MHz digital channels
Link Performance
(Test at temperature 25 degree C, 77 NTSC channels / 60 PAL channels Loading)	-
CNR	dB	≥ 52 @ link loss = 14dB ; ≥ 51 @ link loss = 15 dB
CSO	dB	≤ -63
CTB	dB	≤ -65
Others
Control Interface	-	RS232 / RS485 and RJ45. Support MIB table for SNMP Monitoring software
Power Supply	V	100 to 240 V_AC, 50/60 Hz, or larger
Operating Temperature	°C	0 to 50, or larger

Structure Description

SOT-03-1G-C-dBm_2_1

Front panel

1	Power indicator
2	Laser drive level indicator: Steady green light: Drive level is normal. Blinking red light: Drive level alarm. You can view the alarm in the Alarm Status, the second level submenu.
3	Laser working status indicator: Steady green light: The laser is operating normally. Steady red light: The laser is not turned on. Blinking red light: The device has a parameter alarm. You can view the alarm in the Alarm Status, the second level submenu.
4	Device running indicator: This indicator will flash by 1Hz frequency after the device start running normally.
5	Laser switch: ON: The laser is on. OFF: The laser is off. Keep the laser off before the device is powered on, and turn on the laser after the self-inspection is completed when power on.
6	Laser drive level test port: -20dB

SOT-03-1G-C-dBm_3

Rear panel

1	Fan	6	RS232 interface
2	Ground stud, ensure good grounding before power on	7	LAN interface
3	RF input 1	8	Power module 1, hot swappable
4	RF input 1 test port -20dB	9	Power module 2, hot swappable
5	Optical signal output