Unitron Johansson 4002 User manual

User Manual
Optical Headend
Ref. 4002 & 4003

Optical Headend (Ref. 4002 & 4003)
2
CONTENTS
1. INTRODUCTION .............................................................................. 3
Product description ............................................................................................ 3
Package contents .............................................................................................. 3
2. CONFIGURATION OF THE MODULE........................................................ 4
3. INSTALLATION OF THE HARDWARE ...................................................... 6
Wideband to SCR (up to 64 splits) ....................................................................... 6
Hybrid dSCR Solution: Wideband to SCR + CATV (up to 128 splits) ......................... 7
Legacy and dSCR: Wideband to SCR + CATV (up to 128 splits) ............................... 8
4. TECHNICAL SPECIFICATIONS ............................................................. 9
5. SAFETY INSTRUCTIONS .................................................................. 10
6. CONDITIONS OF WARRANTY ............................................................ 11
No part of this manual may be copied, reproduced, transmitted, transcribed or translated into any language
without permission.
Unitron reserves the right to change the specifications of the hardware and software described in these manuals
at any time.
Unitron cannot be held liable for any damages resulting from the use of this product. Specifications are subject
to change without notice. 1/22
©Unitron NV - Frankrijklaan 27 - B-8970 Poperinge - Belgium
T [phone] F [phone]
[e-mail]
www.unitrongroup.com

Optical Headend (Ref. 4002 & 4003)
3
1. INTRODUCTION
Product description
The 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 is of optimal quality for your optical distribution system. The plug-
and-play Optical Transmitters are suited for many types of optical systems: up to 64 splits, up
to 255 splits and even more than 2000 splits!
REF 4002: OPTICAL HEADEND TRANSMITTER 2 WAVELENGTHS
•2 Wideband inputs
•Frequency range: SAT: 290 –2340 MHz (Wideband) / 950 –2150 MHz (Quattro)
•1 Optical output (wavelengths 1310 - 1330nm)
•9 dBm output power
REF 4003: OPTICAL HEADEND TRANSMITTER 3 WAVELENGTHS
•2 Wideband and 1 CATV inputs
•frequency range: SAT: 290 –2340 MHz (Wideband) / 950 –2150 MHz (Quattro) /
CATV: 47 –1218 MHz
•1 Optical output (wavelengths 1310 –1330 - 1550nm)
•9 dBm output power
Package contents
•1x Optical Headend (REF 4002 or REF 4003)
•Not included: 20V / 3A Power Supply (Ref. 2460)

Optical Headend (Ref. 4002 & 4003)
4
2. 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):
With this switch you can select the number of splits in your system, this is necessary to make
the Automatic Gain Control working properly.

Optical Headend (Ref. 4002 & 4003)
5
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 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
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, make sure to set the select the right number of splits using the split switch.

Optical Headend (Ref. 4002 & 4003)
6
3. INSTALLATION OF THE HARDWARE
Wideband to SCR (up to 64 splits)

Optical Headend (Ref. 4002 & 4003)
7
Hybrid dSCR Solution: Wideband to SCR + CATV (up
to 128 splits)

Optical Headend (Ref. 4002 & 4003)
8
Legacy and dSCR: Wideband to SCR + CATV (up to
128 splits)

Optical Headend (Ref. 4002 & 4003)
9
4. TECHNICAL SPECIFICATIONS
REF 4002
REF 4003
RF Inputs (F-connector)
-
Input frequency SAT
MHz
Input frequency CATV
MHz
-
Optical outputs (SC/APC)
-
1
Optical output wavelengths
nm
1310 - 1330
1310 –1330 - 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
Max. 30
DC input
-
20 V / 1.25A (F-type)
20 V / 1.5A (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

Optical Headend (Ref. 4002 & 4003)
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5. 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

Optical Headend (Ref. 4002 & 4003)
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6. 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).

Optical Headend (Ref. 4002 & 4003)
12
UNITRON NV
Frankrijklaan 27
B-8970 Poperinge
Belgium
T [phone]
F [phone]
[e-mail]
www.unitrongroup.com