UNITRONGROUP 4004 Optical Headend User Manual
- October 31, 2023
- UNITRONGROUP
Table of Contents
UNITRONGROUP 4004 Optical Headend
Product Information
The Optical Headend Ref. 4002 & 4003 & 4004 is a compact device that converts
Wideband/CATV signals to multiple optical wavelengths. It is equipped with
built-in Automatic Gain Control (AGC) and Automatic Slope Control (ASC) to
ensure optimal output
signal quality for your optical distribution system. The device has an output
power of 9 dBm and is suitable for various types of optical systems, including
up to 64 splits, up to 128 splits, and even more than 2000 splits.
Product Usage Instructions
Configuration of the Module
To configure the module, follow these steps:
- Select LNB Type: Use the switch to select the frequency range of the Sat input signal. Set it to “Q” if signals of a Quattro LNB are inserted, or set it to “WB” for Wideband signals.
- Select the Number of Splits (only for REF. 4003 and REF. 4004): Use the switch to select the number of splits in your system. This is necessary for the Automatic Gain Control to work properly.
Signal Quality LED
The signal quality LED provides information about the signal quality. Here’s what each color indicates:
- Orange Color: Signal level is too low. In this case, you should amplify the signal with an external amplifier.
- Green Color: Signal level is within the AGC supported range.
- Red Color: Signal level is too high. You need to attenuate the signal with external attenuator(s).
- Solid LED: Slope is OK.
- Blinking LED: Slope is out of range.
INTRODUCTION
Product description
The new Optical Compact Headend converts Wideband/CATV signals to multiple optical wavelengths. Thanks to built-in Automatic Gain Control (AGC) and Automatic Slope Control (ASC), the output signal quality is optimal for your optical distribution system (9 dBm output power). The Optical Transmitters are suited for many types of optical systems: up to 64 splits, up to 128 splits and even more than 2000 splits!
REF 4002: OPTICAL HEADEND TRANSMITTER 2 WAVELENGTHS
- Wideband inputs
- Frequency range: SAT: 290 – 2340 MHz (Wideband) / 950 – 2150 MHz (Quattro)
- Optical output (wavelengths 1310 – 1330nm)
REF 4003: OPTICAL HEADEND TRANSMITTER 3 WAVELENGTHS
- Wideband and 1 CATV inputs
- frequency range: SAT: 290 – 2340 MHz (Wideband) / 950 – 2150 MHz (Quattro) /CATV: 40 – 1218 MHz
- Optical output (wavelengths 1310 – 1330 – 1550nm)
REF 4004: OPTICAL HEADEND TRANSMITTER 3 WAVELENGTHS
- 2 Wideband and 1 CATV inputs
- frequency range: SAT: 290 – 2340 MHz (Wideband) / 950 – 2150 MHz (Quattro) /CATV: 40 – 1218 MHz
- Optical output (wavelengths 1350 – 1370 -1550 & 1310 – 1330 from optical loopthrough)
Package contents
- 1x Optical Headend (REF 4002 or REF 4003 or REF 4004)
- Not included: 20V / 3A Power Supply (Ref. 2460)
CONFIGURATION OF THE MODULE
Select LNB Type:
With this switch you can select the frequency range of the Sat input signal.
This is necessary to make the Automatic Slope Control (ASC) working properly.
If signals of a Quattro LNB are inserted, then set the switch to “Q”. If
Wideband signals are inserted, set the switch to “WB”.
Select # splits (only for REF. 4003 and REF. 4004):
With this switch you can select the number of splits in your system, this is
necessary to make the Automatic Gain Control working properly.
Signal Quality LED:
- The signal quality LED shows you the quality of the signal with different colors.
- Orange Color: Signal level is too low. In this case you should amplify the signal with an external amplifier.
- Green Color : Signal level is within the AGC supported range.
- Red Colo r: Signal level is too high. You need to attenuate the signal with external attenuator(s).
Solid LED: Slope is OK
Blinking LED: Slope is out of range
Set DC Supply and Laser Diode:
- With this switch you can set the DC (18V) supply to the RF input and switch off the Laser Diode (LD) in order to measure each optical signal separately. To measure the signal strength of a certain wavelength, you need to switch off both other Laser Diodes.
- Don’t forget to switch all LDs on after measurement.
- The LED is off if no DC is supplied to the RF input and if no DC is supplied to the Laser Diode. If no DC is supplied to the laser diode, the related signal is not converted into an optical signal. Please make sure to switch on at least the laser diode for proper operation.
- The LED is green if the Laser diode is switched on and the related output voltage off.
- The LED is orange if the Laser diode is switched on the related output voltage is supplied to the RF input.\
- The LED is green/orange blinking if DC is supplied to the RF input and the device recognized a short circuit.
Optical output:
- The optical transmitters each have an optical output power of +9 dBm per wavelength.
- For REF.4003 and REF. 4004, make sure to set the select the right number of splits using the split switch.
INSTALLATION OF THE HARDWARE
Wideband to SCR (up to 64 splits)
Hybrid dSCR Solution: Wideband to SCR + CATV (up to 64 splits)
Legacy and dSCR: Wideband to SCR + CATV (up to 64 splits)
Dual Wideband + CATV (up to 32 splits) 
TECHNICAL SPECIFICATIONS
| | REF 4002| REF 4003| REF 4004
---|---|---|---|---
RF Inputs (F-connector)| –| 2 x Satellite (WB / Q)| 2 x Satellite (WB / Q) 1 x
CATV
Input frequency SAT| MHz|
- Wideband: 290 – 2340
- Quattro: 950 – 2150
Input frequency CATV| MHz| –| 47 – 1218
Optical outputs (SC/APC)| –| 1
Optical inputs (SC/APC)| | –| –| 1
Optical output wavelengths| nm| 1310 – 1330| 1310 – 1330 – 1550|
- 1310 – 1330 (Bypass)
- 1350 – 1370 – 1550
Optical output power| dBm| +9 (per wavelength)
Minimal input level SAT| dBµV| 75 – 95
Minimal input level CATV| dBµV| –|
- 55 – 75 (CATV ≤4 splits)
- 65 – 85 (CATV >4 splits)
DC supply| –| 18V / 400mA
DC supply CATV| –| –| 12V / 200mA
Automatic Gain Control| dB| 15
Automatic Slope Control| dB| 10
Power consumption| W| 22| 27
DC input| –| 20 V / 1.1A (F-type)| 20 V / 1.35A (F-type)
Power Supply| –| Use a 20V / 3A Power Supply (Ref. 2460) Not included with
product
Operating temperature range| °C| -10 to +50
Dimensions| Mm| 221 x 141 x 50
Weight| kg| 0.8
SAFETY INSTRUCTIONS
Read these instructions carefully before connecting the unit
To prevent fire, short circuit or shock hazard:
- Do not expose the unit to rain or moisture.
- Install the unit in a dry location without infiltration or condensation of water.
- Do not expose it to dripping or splashing.
- Do not place objects filled with liquids, such as vases, on the apparatus.
- If any liquid should accidentally fall into the cabinet, disconnect the power plug.
To avoid any risk of overheating:
- Install the unit in a well aery location and keep a minimum distance of 15 cm around the apparatus for sufficient ventilation
- Do not place any items such as newspapers, table-cloths, curtains, on the unit that might cover the ventilation holes.
- Do not place any naked flame sources, such as lighted candles, on the apparatus
- Do not install the product in a dusty place
- Use the apparatus only in moderate climates (not in tropical climates)
- Respect the minimum and maximum temperature specifications
To avoid any risk of electrical shocks:
- Connect apparatus only to socket with protective earth connection.
- The mains plug shall remain readily operable
- Pull out power plug to make the different connections of cables
- To avoid electrical shock, do not open the housing of adapter.
Maintenance
Only use a dry soft cloth to clean the cabinet.
Do not use solvent
For repairing and servicing refer to qualified personnel.
Dispose according your local authority’s recycling processes
CONDITIONS OF WARRANTY
Unitron N.V. warrants the product as being free from defects in material and
workmanship for a period of 24 months starting from the date of production
indicated on it. See note below.
If during this period of warranty the product proves defective, under normal
use, due to defective materials or workmanship, Unitron N.V, at its sole
option, will repair or replace the product. Return the product to your local
dealer for reparation.
THE WARRANTY IS APPLIED ONLY FOR DEFECTS IN MATERIAL AND WORKMANSHIP AND DOES NOT COVER DAMAGE RESULTING FROM:
- Misuse or use of the product out of its specifications,
- Installation or use in a manner inconsistent with the technical or safety standards in force in the country where the product is used,
- Use of non-suitable accessories (power supply, adapters…),
- Installation in a defect system,
- External cause beyond the control of Unitron N.V. such as drop, accidents, lightning, water, fire, improper ventilation
THE WARRANTY IS NOT APPLIED IF
- Production date or serial number on the product is illegible, altered, deleted or removed.
- The product has been opened or repaired by a non-authorized person.
NOTE
Date of production can be found in the product’s serial number code. The
format will either be “YEAR W WEEK” (e.g., 2017W32 = year 2017 week 32) or
“YYWW” (e.g., 1732 = year 2017 week 32).
UNITRON NV Frankrijklaan 27
B-8970 Poperinge Belgium
T +32 57 33 33 63
sales@unitrongroup.com
www.unitrongroup.com
References
- UnitronGroup: Your Partner for Customized IP & RF Solutions
- UnitronGroup: Your Partner for Customized IP & RF Solutions