ASTRO FHS2 User manual

FTTH Toolcase
FHS2
FHP2
VLS8
Microscope
Operating manual
82 512 400 00DE
DRAFT VERSION

FHS2 user manual (release 1.0)
1
Operating instructions
Optical laser source
FHS2
DRAFT VERSION

FHS2 user manual (release 1.0)
2
Contents
Change history...................................................................................................................... 2
1Warning.......................................................................................................................... 3
2Brief description.............................................................................................................. 5
2.1 Description of the device......................................................................................... 6
2.2 TWIN mode – wavelength detection with FHP2 (optical power meter):.................... 7
2.3 CW/Hz button.......................................................................................................... 7
2.4 Transmission range using arrow up and down ........................................................ 8
2.5 Technical specifications .......................................................................................... 8
Change history
Version
Change history
Date
Name
Ed.1.0
Creation
28/04/2021
S. Mundinger
DRAFT VERSION

FHS2 user manual (release 1.0)
3
1 Warning
Before operating the device:
Read this operating manual carefully! It contains important information about installation,
ambient conditions and maintenance of the device. Keep this operating manual for future use
and for handover in the event of a change of owner or operator. A PDF version of this
manual can be downloaded on the ASTRO website (there may be a more recent version).
The ASTRO company confirms that the information in this manual was correct at the time of
printing, but it reserves the right to make changes to the specifications, the
operation of the device and the operating manual without prior notice.
Warning about non-visible optical radiation
The device emits optical radiation in the non-visible range at a
maximum power of –2 dBm (laser class 1).
Improper use of optical fibres with non-visible laser radiation can
cause long-term damage to health, as well as damage to the device.
Never look into optical fibres with the naked eye or by means of an
optical inspection device without making sure that the optical fibre
for inspection emits absolutely no radiation.
The non-visible light can cause a loss of vision in the event of
improper use.
Under no circumstances connect high optical powers (benchmark
approx. > +16.0 dBm) dur
ing operation, as otherwise burn marks are
produced at the contact points.
Always switch off the transmission power beforehand, and ensure
there is no power in the glass fibres. All other safety precautions that
apply to the use of high optical powers must be strictly complied
with. Only personnel trained in the use of laser technology should be
assigned to work to prevent any damage to health due to non-
observance
Recycling: Please recycle all packaging
DRAFT VERSION

FHS2 user manual (release 1.0)
4
In accordance with the European Union (“EU”) Directive on Waste
Electrical and Electronic Equipment (Directive 2002/96/EC) effective
as of 13 August 2005, electrical and electronic equipment may no
longer be disposed of as household waste.The manufacturer is
obliged to accept the return of products
like this once the end of their
service life has been reached
DRAFT VERSION

FHS2 user manual (release 1.0)
5
2 Brief description
The optical laser source FHS2 is suitable for use as a small, handy laser transmitter
that allows attenuation in optical fibres, fibre optic splitters, patch cables etc. to be
measured with the aid of an optical level meter at the other end of the line.
The laser sources emits laser light within a 1310 mm or 1550 mm range, which can
be set within a level range of –8 dBm to –2 dBm (–5 dBm +/– 3 dB). Settings can be
made in increments of 0.1 dB using the arrow up/down.
Depending on the adapter used, SC and FC connectors (LC with a special adapter is
also an option) with 0° PC or UPC angle polish can be connected.
If power is applied to glass fibres with an 8° APC, then a hybrid cable from UPC to
APC is required on the laser source (e.g. connector 1: FC/UPC, connector 2:
FC/APC).
If an APC 8° cable is connected to the laser source, then approx. 3.5 dB to 4.0 dB are
lost due to the air gap at the connection, and the value displayed by the laser source
no longer corresponds to the real optical power input.
2 × 1.2 V Ni-MH AA rechargeable batteries should be used for the power supply, and
can be inserted in the battery compartment on the rear. The external power supply unit
included can be used to supply the device with power even when no batteries have
been inserted, while also providing the charger for the 2 × AA rechargeable batteries.
The device is switched on by briefly pressing the ON/OFF button and is then set to
AUTO-OFF mode, which switches the device off automatically after approx. 5 min. If
the ON/OFF button is pressed for >2 sec., then AUTO-OFF mode is switched off.
Backlighting for the display can be activated using the Light button once the device has
been switched on. Pressing it a second time switches the backlighting off again.
A range of adapters (e.g. FC or SC, along with LC when applicable) are included, which
can be screwed onto the device. The adapters for the laser source FHS2 are labelled
with LD (laser diode) and must not be mixed up with the adapters for the optical power
meter FHP2, which are labelled with PD (PIN diode). There must be no dust at all when
fitting the adapters. Contact surfaces must be cleaned using technically suitable
cleaning devices or cleaning agents and cleaning methods to avoid having
measurements falsified by dust and other particles.
After use or once the measurement is complete, ensure that the dust cap is screwed
onto the optical input to prevent contamination of the laser in the device.
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FHS2 user manual (release 1.0)
6
2.1 Description of the device
Backlighting on or off
Twin button for controlling
the wavelength of the FHP2
power meter
Increase in output power in
0.1 dB increments
Power on/off
Pressing and holding when
switching on deactivates
AUTO-OFF function.
Modulated signal:
- no modulation = CW (constant)
- 270 Hz
-1 kHz
-2 kHz
Opt. transmission output
Level display
Set wavelength
5.5 mm × 2.1 mm DC
connection of a 6 VDC/1 A
power supply unit at the
bottom of the device
Battery compartment on the
rear of the device
Wavelength switchover from
1310 nm to 1550 nm
Decrease in output power in
0.1 dB increments
Scale in dBm
Single: automatic λdetection
for the FHP2 is off
TWIN: automatic λdetection
for the FHP2 is on
Battery charge level
Auto-off warning
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FHS2 user manual (release 1.0)
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2.2 TWIN mode – wavelength detection with FHP2 (optical power meter):
Continuity and attenuation measurements can be carried out in combination with the
FHP2 power meter by inserting the FHS2 laser source on one side and measuring the
level with the FHP2 level meter on the other side.
TWIN mode is a special mode that allows the FHS2 transmitter to use a log to relay
control commands to the FHP2 receiver.
The FHS2 laser source can automatically switch over the FHP2 optical level meter to the
right wavelength in TWIN mode. The TWIN function on the FHS2 must also be switched
on for this. In this mode, a switchover from 1310 nm to 1550 nm and back on the FHS2
laser source automatically switches over the FHP2 level meter as well, without requiring
the user to operate the level meter on site.
Pressing the TWIN key switches this function on or off.
2.3 CW/Hz button
Along with CW (constant wave), modulated signals can also be relayed from the FHS2
transmitter to the FHP2 level meter, which are then decrypted and displayed in the FHP2
level meter to simulate signal transport or to identify the cable. Using the CW/Hz button,
the transmitter can relay
no (= constant optical signal)
a 270 Hz
a 1 kHz or
a 2 kHz
signal.
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FHS2 user manual (release 1.0)
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2.4 Transmission range using arrow up and down
The FHS2 optical level meter has an output level of –5 dBm after being switched on.
This can be increased or decreased by 3 dB by setting the required signal strength in
0.1 dB increments using arrow up and down.
2.5 Technical specifications
Model
FHS2D02
Calibrated wavelengths
1310 nm ±20 nm and 1550 nm±20 nm
Laser class
1
Spectral width
±3 nm
Long-term stability
±0.2 dB
Opt. constant power (CW mode)
–5.0 dBm ±0.5 dB
Minimum opt. output power
–8.0 dBm
Maximum opt. output power
–2.0 dBm
Laser setting resolution
0.1 dB
Auto power off
Yes
Backlit display
Yes
Connectors
FC/PC, SC/PC (optional LC/PC)
Modulation options
270, 1 k, 2 kHz
Operating temperature range
–10 to +50 �
Storage temperature range
–20 to +70 �
Power supply
2 × Ni-MH AA rechargeable batteries (max. 2500 mAh);
power supply unit 5.5 × 2.1 DC connection (6 VDC,
1000 mA)
Dimensions
160 (L)×76 (W)×45 mm (H)
Net weight
260 g
Standard accessories:
FC/PC adapter, SC/PC adapter, 2 × AA Ni-MH rechargeable batteries, operating instructions
DRAFT VERSION

FHS2 user manual (release 1.0)
9
ASTRO Strobel Kommunikationssysteme GmbH
Olefant 1–3
51427 Bergisch Gladbach
Germany
Phone: [phone]
Fax: [phone]
Web: astro-kom.de
Email: [e-mail]
DRAFT VERSION

FHP2 user manual (release 1.0)
1
Operating instructions
Optical level meter
FHP2
DRAFT VERSION

FHP2 user manual (release 1.0)
2
Contents
Change history...................................................................................................................... 2
1Warning.......................................................................................................................... 3
2Brief description.............................................................................................................. 5
2.1 Description of the device......................................................................................... 6
2.2 Wavelength detection in combination with FHS2 (optical laser transmitter):............ 7
2.3 Measuring other laser sources ................................................................................ 7
2.4 Reference function (REF button):............................................................................ 8
2.5 dBm/dB/mW button:................................................................................................ 8
2.6 Load/Save button:................................................................................................... 9
2.7 Measuring range..................................................................................................... 9
2.8 Technical specifications .........................................................................................10
Change history
Version
Change history
Date
Name
Ed.1.0
Creation
28/04/2021
S. Mundinger
DRAFT VERSION

FHP2 user manual (release 1.0)
3
1 Warning
Before operating the device:
Read this operating manual carefully! It contains important information about installation,
ambient conditions and maintenance of the device. Keep this operating manual for future use
and for handover in the event of a change of owner or operator. A PDF version of this
manual can be downloaded on the ASTRO website (there may be a more recent version).
The ASTRO company confirms that the information in this manual was correct at the time of
printing, but it reserves the right to make changes to the specifications, the
operation of the device and the operating manual without prior notice.
Warning about non-visible optical radiation
The device does not emit any optical radiation, can however be
connected to a source of optical radiation.
Improper use of optical fibres with non-visible laser radiation can
cause long-term damage to health, as well as damage to the device.
Never look into optical fibres with the naked eye or by means of an
optical inspection device without making sure that the optical fibre
for inspection emits absolutely no radiation.
The non-visible light can cause a loss of vision in the event of
improper use.
High optical powers can cause burn marks on the fibre-optic contact
surfaces.
Under no circumstances connect high optical powers (benchmark
approx. > +16.0 dBm) into the optical receiver during operation.
Switch off the laser source beforehand.
Always switch off the transmission power beforehand, and ensure
there is no power flowing through the glass fibres. All other safety
precautions that apply to the use of high optical powers must be
strictly complied with. Only personnel trained in the use of laser
technology should be assigned to work to prevent any damage to
health due to non-observance
Recycling: Please recycle all packaging
DRAFT VERSION

FHP2 user manual (release 1.0)
4
In accordance with the European Union (“EU”) Directive on Waste
Electrical and Electronic Equipment (Directive 2002/96/EC) effective
as of 13 August 2005, electrical and electronic equipment may no
longer be disposed of as household waste.The manufacturer is
obliged to accept the return of products like this once the end of their
service life has been reached
DRAFT VERSION

FHP2 user manual (release 1.0)
5
2 Brief description
The optical power meter FHP2 is used to measure optical levels in the laboratory, in
optical LAN and WAN networks, and in HFC and FTTH networks. Optical powers with
different wavelengths (850/1300/1310/1490/1550/1625 nm) can be measured at levels
ranging from –50 dBm to +26 dBm.
A connector with APC (8° angle) or PC (0°) can be connected.
Before connection, an estimate of the expected level should be made (to prevent
destruction due to an excessively high level) and the device be set to the wavelength
required. Adapters for SC and FC (and, optionally, LC) are included.
2 × 1.2 V Ni-MH AA rechargeable batteries should be used for the power supply, and
can be inserted in the battery compartment on the rear. The external power supply unit
included can be used to supply the device with power even when no batteries have
been inserted, while also providing the charger for the 2 × AA rechargeable batteries.
The device is switched on by briefly pressing the ON/OFF button and is then set to
AUTO-OFF mode, which switches the device off automatically after approx. 5 min. If
the ON/OFF button is pressed for >2 sec., then AUTO-OFF mode is switched off.
Backlighting for the display can be activated using the Light button once the device has
been switched on. Pressing it a second time switches the backlighting off again.
A range of adapters (e.g. FC or SC) are included, which can be screwed onto the
device. The adapters for the power meter are labelled with PD (PIN diode) and must
not be mixed up with the adapters for used an optical transmitter, which are labelled
with LD (laser diode). There must be no dust at all when fitting the adapters. Contact
surfaces must be cleaned using technically suitable cleaning devices or cleaning
agents and cleaning methods to avoid having measurements falsified by dust and other
particles.
After use or once the measurement is complete, make sure that the dust cap is screwed
onto the optical input port to avoid contamination of the sensor in the device.
DRAFT VERSION

FHP2 user manual (release 1.0)
6
2.1 Description of the device
Backlighting on or off
dBm, dB or mW scale
Wavelength selection/press
and hold TWIN mode
Reference setting
Switching on/off
AUTO-OFF not activated
when pressed and held for
>2 sec. when switching on
Save/load measured values
Opt. measuring input
(adapter: SC or FC or LC)
Put the dust cap on tightly
following use
Level display in dBm or mW.
LO indicates less than –
50 dBm
Set wavelength
Mini USB for connection of a
power supply unit to the
bottom of the device
Battery compartment on the
rear of the device
Charge status of
rechargeable batteries
Auto-OFF has been
activated. After 5 min. of
non-operation the device
switches off.
Auto-OFF not activated
when ON/OFF is pressed
and held for >2 sec. after
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FHP2 user manual (release 1.0)
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2.2 Wavelength detection in combination with FHS2 (optical laser transmitter):
Continuity and attenuation measurements can be carried out in combination with the
FHS2 laser source by plugging in the laser source on one side and measuring the level
with the FHP2 level meter on the other side.
TWIN mode is a special mode that allows the FHS2 transmitter to use a log to relay
control commands to the FHP2 receiver.
The FHS2 laser source can automatically switch over the FHP2 optical level meter to the
right wavelength in TWIN mode. To do so, the TWIN function must be switched on on
the optical level meter (press the λ button > 2 sec.). In this mode, a switchover from
1310 nm to 1550 nm and back on the FHS2 laser source automatically switches over
the FHP2 level meter as well, without requiring the user to operate the level meter on
site.
Modulated frequencies can also be relayed from the FHS2 transmitter to the FHP2 level
meter, which are then decrypted and displayed in the FHP2 level meter to simulate signal
transport or to identify the line. Using the CW/Hz button, the transmitter can relay
no
a 270 Hz
a 1 kHz or
a 2 kHz
signal.
2.3 Measuring other laser sources
When set to manual mode, the FHP2 level meter can be set to a wavelength value of
850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm and also 1625 nm by pressing the λ
button.
To obtain correct measurements, the wavelength must be set to the same wavelength
as the measurement signal. Failure to do so produces incorrect measurements.
At all times, ensure that the device cannot be destroyed due to connecting very high
optical powers to the measuring receiver. When power levels are high, always switch off
the transmission signal first, and only then connect the measuring receiver and switch
on the transmission signal again. Carry out the steps in reverse when disconnecting.
Switch off the laser first, then disconnect the measuring receiver.
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FHP2 user manual (release 1.0)
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2.4 Reference function (REF button):
The REF button allows the value of a level received on a previous occasion to be used
as a basis for additional measurements. The additional measurements then use this
base value as a reference. The current reference threshold is then set to a relative offset
of 0 dB, which appears on the display after the button is pressed. The additional
measurements then show the different in level to this reference threshold in dB.
Example:
You would like to test the continuity of a fibre optic splitter, however have one cable
connected to the optical transmitter and one to the optical level meter leading from the
splitter respectively. To exclude the conductor and insertion losses from the
measurement, proceed as follows:
oConnect both fibre optic cables to an adapter, and insert one end into the optical
transmitter and the other end into the power meter.
oSwitch on the optical transmitter and use the optical power receiver to measure the
optical level. Check the level meter to ensure that the same wavelength has been
set on the transmitter and level meter. The difference in level between the
transmitter output and the optical receiver is the power loss by the patch cable.
oNow press the REF button on the FHP2. A value of 0 dB is displayed, which means
that both cables will not be factored into the measurement when the fibre-optic
splitter is connected between them.
oNow remove the adapter between the two patch cables, and connect the
transmitter to the splitter input and insert the receiver into a splitter output.
oThe net splitter attenuation is now displayed in dB without the cables or plug
connections impacting the test setup.
2.5 dBm/dB/mW button:
Note: Most optical powers are measured in dBm.
The dBm/dB/mW button can be used to switch over the scale from dBm (10 × log [value
in mW/1mW] logarithmic power level in relation to 1 mW) to the absolute level in mW.
The dB setting displays the relative change in the level in dB to the reference value set
beforehand. If the levels are lower than the reference value, then a minus sign appears
in front of the relative differences in level; if they are higher than the reference value,
then no sign appears in front of the values.
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FHP2 user manual (release 1.0)
9
2.6 Load/Save button:
Saving measurements:
Pressing and holding the Load/Save button (Save >2 sec.) allows a measurement to
be saved to the internal memory, and assigns a consecutive sequence number (starting
with 001) to it. Every time the button is pressed and held, the current value is saved
under the next sequence number.
If several measurements have been saved, then pressing the Load button briefly allows
sequence number 001 to be displayed (001 appears at the bottom of the display).
The user can jump to the next sequence number by pressing the λ button (orange arrow
up), and to the previous sequence number by pressing the REF button (orange arrow
down).
Entries can be deleted by pressing the dBm/dB/mW button (labelled with DELETE above
the button).
2.7 Measuring range
The FHP2 optical level meter has a measuring range from –50 dBm – +26 dBm at
1550 nm.
The FHS2 transmitter (max. output level –2 dBm) and the reception range of min. –
50 dBm on the optical power meter can be used to measure an attenuation budget of
max. 48 dB.
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FHP2 user manual (release 1.0)
10
2.8 Technical specifications
Model
FHP-2B04
Calibrated wavelengths
850/1300/1310/1490/1550/1625 nm
Opt. detector type
InGaAs
Precision
±0.2 db±10 nW
Resolution
0.01 dB
Linearity
±5%
Auto power off
Yes
Backlit display
Yes
Reference measurement
Yes
Connectors
FC/PC, SC/PC (optional LC/PC)
Optical measurement range
–50 to +26 dBm @1550 nm
Wavelength detection in TWIN
mode
Yes(≥–20 dBm)
Modulation detection
270, 1 k, 2 kHz (≥–20 dBm)
Operating temperature range
–10 to +50 �
Storage temperature range
–20 to +70 �
Power supply
2 × Ni-MH AA rechargeable batteries (max. 2500 mAh);
mini USB cable, mini USB port power supply unit (5 VDC,
1000 mA)
Dimensions
160 (L)×76 (W)×45 mm (H)
Net weight
270 g
Standard accessories:
FC/PC adapter, SC/PC adapter, 2 × AA Ni-MH rechargeable batteries, operating instructions
ASTRO Strobel Kommunikationssysteme GmbH
Olefant 1–3
51427 Bergisch Gladbach
Germany
Phone: [phone]
Fax: [phone]
Web: astro-kom.de
Email: [e-mail]
DRAFT VERSION