RF OVERLAY V2
fttx rf/video overlay
about dkt
DKT designs and manufactures optical and coaxial products for professional broadband operators
and service providers. DKT’s unique product line, combined with extensive experience from many
years in the industry, makes it a strong partner.
The company was founded in 1977, and is family owned. Its headquarters are in Denmark and has
subsidiaries in Sweden, Finland and Germany.
Via a strong network of distributors and subsidiaries, customers are served in most parts of Europe.
It has always been DKT’s philosophy to challenge the status quo and look for improvements to
benefit the customers. This has lead us to unique products that add value to the installation as well
as network performance.
DKT’s mission
DKT develops and creates a series of products for broadband networks within 3 major groups: Coax
distribution, FTTX (Fiber technology) and Home Networks.
The vision is to create the best solutions and products to connect Europe to high-speed broadband
with focus on quality and innovation.
DKT will actively contribute to exceed the expectations concerning deployment of fast broadband in
the 2020 plan of the EU commission, which will increase living standards and competitiveness across
Europe.
Scan the QR tag to view the latest PDF version of this brochure.
Solution introduction.......................................................................... 3
Features and benefits......................................................................... 4
Design solution................................................................................. 5
Laser transmitters - general................................................................. 7
Laser transmitters - 1550 nm DFB........................................................... 8
Laser transmitters - 1550 nm externally modulated..................................... 9
Erbium doped fibre amplifiers (EDFA)..................................................... 11
EDFA - characteristics...................................................................... 12
EDFA - ordering information............................................................... 13
Single mode dual window couplers (1x2 way)........................................... 14
Single mode tree couplers (1x3 to 1x64 way)........................................... 15
High density FTTH splitter, 19-inch rack type........................................... 16
FTTH splitter, 19-inch rack type with 64x WDM module............................... 17
Fibre-to-the-Building (FTTB) nodes....................................................... 19
Fibre-to-the-Home (FTTH) nodes.......................................................... 21
PoP-kit solution.............................................................................. 22
Specifications are subject to change without notice. DKT is not liable for any misprints or errors.
solution introduction
Introduction
With the ever increasing demand from consumers concerning bandwidth, fibre networks are being
deployed in an increasing rate, pushing ever further towards the subscriber’s premises. This development
is not new, or unique for broadband network. However when the fiber is installed, our experience is that
many subscribers wish to continue to utilize the existing coaxial network in the house, avoiding new
cabling and additional boxes. By choosing an RF overlay in the network, DKT’s experience shows that a
higher customer penetration rate and customer satisfaction can be achieved compared to IP-only video
services.
The DKT RF/video overlay solution can be utilized on both active Ethernet (P2P) and passive optical
networks (PON), by adding an extra wavelength being broadcast on the fiber. Both amplifiers and
transmitters can be remotely managed and monitored, allowing troubleshooting and adjustment without
having a technician in the field.
The video service is considered to be the most important service in a broadband network today, and its
success will be determined on how it is perceived by the end-user. RF/video overlay will improve the
success due to easy in-home distribution and used in combination with IP video.
We see the RF video service as a supplement to an optional IP video service. The standard TV package
will be RF, which is easy for the consumer to “handle” as the coaxial network already installed in the
home can be used without any modifications. Additional TV services can then be offered on IP. Since 1999
we have been specialists in RF overlay in fiber optical networks and we are happy to share our knowledge
in this area.
To summarize, what does this imply?
Increased service level and higher level of customer satisfaction
•
Stabile services. Happy customers and reduced churn as a result.
Increased revenue and ARPU
•
Due to increased flexibility with both IP and RF signals, all customers can easily be served with video
services.
Attractive return on investment
•
•
Stretch investment budget across several years.
No need for full scale implementation - can be done ongoing.
Improved OPEX
•
•
RF services are very robust and the technology is mature which, results in very low maintenance and
low customer support.
As there is no set-top box, the depreciation is systematically reduced.
The RF/video overlay
The gray area below displays what DKT considers the RF overlay. This is covered in the brochure.
OLT
FHT GATEWAY
Head-end
Transmitters
Amplifiers
Splitters
FTTH & FTTB
Specific brochure for FTTH
gateways is available
3
features and benefits
Stabile services
Our long experience with fibre technology gives us an advantageous
position when evaluating quality at subcontractors, ensuring that
only production facilities of the highest standard are chosen to
manufacture our portfolio. Combined with the ability to create
redundancy in both power supplies and transmission makes for
an incredible uptime on the TV signal, which is key to increasing
customer satisfaction, and thereby reducing both churn and
maintenance cost.
Accrual of investments (on CATV networks)
When implementing an RF overlay, it is not necessary to invest
large sums (High CAPEX) initially. If Optical/Electrical nodes are
being utilized, it’s possible to spread investments over a period of
time, that does not need to be predefined as there is no expiration
date on a partial implementation. The idea is simply to push the
fibre closer to the customer, by replacing coaxial infrastructure
with fiber, and thereby reducing the amount of amplifiers and
other coaxial equipment. When implementation is finalized in an
area, the optical/electrical nodes are removed from the network
due to replacement of smaller CPE units, and are as such ready to
be placed within a new network, starting the upgrade cycle once
more.
Increased flexibility
By adding an RF overlay to the fiber network, it’s possible to
service all potential customers on the network. By transmitting
an RF signal that can be connected directly to all TVs after the
optical/electrical conversion at the CPE. That way it is possible
to utilize existing in-home coaxial networks to supply TV sets, and
thereby avoiding set-top boxes and rewiring of the home. The ease
of installation is a swaying factor for the discerning audience.
Lower network operating costs
The RF overlay solution offers end-to-end management and status
monitoring on all active components via SNMP. Compared to
traditional RF networks, the DKT solution supports a lower OPEX
by optimizing total network operating costs and faster network
troubleshooting. Furthermore, as signals can be transmitted
further on fibre than traditional coaxial cable, the amount of
active components in the network can be substantially reduced,
resulting in fewer sources for defects. The solution can be
managed remotely or locally on the individual front panels.
design solution
The DKT RF overlay solution compliments active Ethernet networks as well as PON networks.
Point-to-Point (P2P), Active Ethernet RF overlay solution
The RF signal is typically distributed from a standard RF head-end through an electrical to optical 1550
nm laser transmitter. The RF signal is transported by a separate fibre network to the PoP station in the
field. Optical protection of the primary and secondary signal routes is optional through a redundant
failover switch, either included in an EDFA or as a standalone device. An EDFA amplifies the signal and
distributes it through an optimized design of splitters to the P2P CPE.
HEAD-END
LT
OPS
EDFA
FTTx
PoP
1:32 - 64
1:16 - 64
1:16 - 64
FHT GATEWAY
1:32- -6464
1:16
1:16 - 64
FHT GATEWAY
1:16 - 64
1:16 - 64
1:32
64
DATA
DATA
Access switches
PON RF overlay solution
The RF signal is distributed from a standard RF head-end through an E/O 1550 nm laser transmitter. The
RF signal is transported by a separate fibre network to the PoP station. Optical protection of the primary
and secondary signal routes is optional through a protection switch, either included in an EDFA or as a
standalone device. A WDM coupler combines the RF signal with the data traffic from the PoP OLT, which
uses a different wavelength (1310/1490 nm), putting three wavelengths on the same fibre PON and
distributing them downstream through the splitters to the customer’s ONT/ONUs.
OLT
LT
HEAD-END
OPS
EDFA
FTTx
PoP
1:32 - 64
FHT GATEWAY
1:32 - 64
1:32 - 64
Legend
LT = Laser Transmitter, electrical to optical conversion unit.
OPS = Optical Protection Switch, an optical fail-over device, adding redundancy in the broadcasting.
EDFA = Erbium Doped Fibre Amplifier, amplification unit of optical forward path signals.
OLT = Optical Line Terminal, an OLT provides the interface between a PON and a service provider′s core network.
5
Benefits
-
-
Maximum performance
Stable operation
Simple plug-and-play
Easy installation
Easy network management via TELNET, HTTP & SNMP
laser transmitters
Product information
The laser transmitters support today’s need for optical transmission of RF signals in modern fibre optical
broadband networks. To complement Internet and voice applications, DKT provides unique solutions for
RF transmission for long-haul and short-haul applications.
The product line consists of two different series, depending on the required signal transmission distance;
thermally stabilised DFB isolated lasers for short-haul and externally modulated lasers for long-haul. Both
lines can simultaneously transmit a high number of channels with superior performance.
Externally modulated transmitter (LTE)
The transmitter takes advantage of advanced fibre dispersion compensation circuitry to provide
exceptional CATV performance. It provides a cost-efficient, transport solution for medium to long
distances.
•
•
•
Handles conventional cable television as well as DVB-C and DVB-T formats.
Suitable for long-haul applications up to 90 km.
SBS suppression for optimized CSO and CTB over long-haul fibre lengths.
FHT GATEWAY
40 - 50 km
RF-Input
LTE
EDFA
40 - 50 km
EDFA
O/E
Conversion
DFB laser transmitter
The DFB optical laser transmitter employs a high performance thermally stabilised
DFB, a low-chirp isolated laser to transmit 1550 nm CATV signals.
•
•
•
Handles conventional cable television as well as DVB-C and DVB-T formats.
Suitable for <10 km fibre links and short-haul FTTH access networks.
Possible >30 km reach on 1550 nm dispersion shifted fibres.
FHT GATEWAY
< 10 km
RF-Input
LTE
EDFA
O/E
Conversion
7
1550 nm dfb
Product information
The optical transmitter model LT1550 employs a high
performance thermally stabilised DFB, a low-chirp
isolated laser to transmit CATV signals. Operating on
a specific optical wavelength in the ITU-DWDM grid,
the unit suits single-mode optical fibre networks with
or without Dense Wavelength Division Multiplexing
(DWDM).
Designed for high channel loading and superior
performance, DKT can guarantee distances with this
transmitter of up to 10 km, and with the correct
fibre quality distances of up to 30 km.
LT1550 optical transmitters incorporate a
comprehensive alarm and status monitoring system.
This is for all laser operating parameters such as
DC Laser Bias Current, Cooler Current and Optical
Output Power.
The data is simultaneously available on a front panel
LCD display, on a USB connector and optionally via a
HTTP/SNMP network module.
Item no.
Type no.
Output power
64155
LT1550-06-33-R0-SC-S
6 mW
64158
LT1550-08-33-0-SC-SN
8 mW
64160
LT1550-10-1-33.SC-U
10 mW
Optical and RF
Optical wavelength
Optical output power options (mW)
Optical connectors
Features
- Analog InGaAsP DFB low-chirp laser with
optical isolator and thermoelectric cooler.
- Handles conventional cable television as well
as digital DVB-T or DVB-C formats.
- 45 ~ 1000 MHz forward path RF amplifier
with automatic gain control (AGC) for a
constant Optical Modulation Index (OMI).
- Automatic Peltier thermo-cooler control and
automatic laser power control for constant
laser temperature and optical output.
- Self-contained 19-inch subrack 1 RU with
integrated universal mains power supply.
- Backlit LCD display provides status monitoring and control.
- Front panel mounted USB craft port with
optional Ethernet port on the rear panel for
SNMP/HTTP network management.
Data
ITU grid channel (193,3 THz), 1550 nm range (1550,92 nm)
6, 8, 10
SC/APC, E2000/APC, FC/APC
RF bandwidth (MHz)
45...1000
RF input level (dBµV)
85 at 4 % OMI
RF flatness (dB)
± 0,75
RF gain control (dB)
-15...5
RF input (Ω)
RF test point
Link performance
75 SCTE F-type
-20 dB ± 1 dB, 75 Ohm Mini-SMB
(measured at 0 dBm optical input, 1550 nm 10 km SMF and 4% OMI)
42 CENELEC channels (as per EN50083-3)
Carrier-to-Noise Ratio (CNR) (dB)
> 53
Composite Second Order (CSO) (dB)
> 55
Composite Triple Beat (CTB) (dB)
> 61
General
Power
Power Consumption (W)
90 ~ 264 VAC 50 ~ 60 Hz
46
Operating temperature (°C )
0...45
Dimensions (H x W x D mm)
44 x 483 x 360
Weight (kg)
Craft port (management system)
Network port (SNMP/HTTP)
Declaration of conformity
5
USB on front panel
10BaseT
CE: EN50083-2
1550 nm externally modulated
Product information
The LTE153-6000 externally modulated laser transmitter for
1550 nm wavelengths is designed as a professional solution
for long line CATV delivery. The unit delivers excellent
performance on long-haul fibre with dispersion shifted to 1550
nm. The transmitter also operates very well in systems with
legacy non-dispersion shifted fibres, optimised for 1310 nm.
The transmitter provides a chirp-free mode of operation with
a very narrow optical line width. This allows the use of 1550 nm wavelength for the transmission of
broadband CATV, whilst maintaining excellent CNR, CSO and CTB performance throughout the network.
The LTE153-6000 is packaged in a self-contained 19” sub rack housing of 1 RU, with lateral cooling and an
option for dual, redundant, hot-swappable power supplies.
The transmitter features field-adjustable SBS suppression to optimise performance for optical line drive
levels between 14 dBm and 18 dBm. The standard unit operates on 1550 ± 5 nm with an option for DWDM
lasers specified from the ITU grid. Multiple DWDM laser transmitters can be combined for transmission
through a single optical amplifier.
An integrated SNMP agent makes remote management and monitoring possible through an RJ45 network
connection. A large LCD readout is provided for local management.
Features
-
-
-
-
-
-
-
-
Externally-modulated transmitter with low dispersion distortion.
RF pre-distortion circuit for excellent CSO and CTB performance with low distortion parameters.
Designed for long-haul applications, as well as for short-haul FTTH customer access networks.
Dual redundant universal mains hot-swappable power supplies.
Field-adjustable Stimulated Brillouin Scattering (SBS) suppression.
Integrated SNMP agent with RJ45 Ethernet port for remote monitoring.
Flat RF frequency response for 45 ~ 1003 MHz.
Dual optical outputs for 2 x 7 dBm.
Item no.
Type no.
Output power
64194
LTE153-6000-SA-1013
2 x 7 mW
Optical and RF
Optical wavelength
Optical output power options (mW)
Data
1550 ± 5 nm, ITU-grid available
2 outputs 7.0/7.0
Optical connectors
SC/APC
RF bandwidth (MHz)
45 - 1003
RF input level
RF flatness (dB)
RF input return loss
15-20 dBmV or 75-80dBuV
± 0.75 @ 45 ~ 1003 MHz
≥ 16 dB
RF input (Ω)
75
RF test point
-20 dB ± 1 dB down from RF input
Link performance
SBS Suppression (dBm)
(measured at 0 dBm optical input, 1550 nm 65 km SMF and 4% OMI)
60 PAL channels at 25 °C
16
Carrier-to-Noise Ratio (CNR) (dB)
> 53
Composite Second Order (CSO) (dB)
> 65
Composite Triple Beat (CTB) (dB)
> 65
General
Power
Dual PSU, 90 ~ 265 VAC 50 ~ 60 Hz
Power Consumption (W)
max. 65
Operating temperature (°C )
0 - +45
Dimensions (H x W x D mm)
44 x 485 x 381
Weight (kg)
Network port (SNMP/HTTP)
Declaration of conformity
6
RJ45 with 10/100baseTx
CE: EN50083-2
9
Benefits
-
-
-
-
-
Easy plug-and-play installation and operation
High power for dense FTTH subscriber applications
Simple network management via HTTP/SNMP
Many configuration possibilities
High reliability/high MTBF
erbiu m doped fibre a mplifiers (edfa)
Product information
The DKT EDFA is a rack-mountable integrated amplifier
module and power supply. It has been designed for use in
CATV, point-to-point (P2P) and Passive Optical Networks
(PON) where stand-alone operation is required. It is also
ideal as a booster, line or preamplifier.
The amplifier provides very stable optical outputs over a
wide range of operating temperatures and this with low
power consumption. It is internally supported with input
and output isolators for system stability and optimal
performance.
The amplifier incorporates electrical control circuits
with DSP. This includes photo diodes for monitoring
the optical input and the output power through tap
couplers.
The amplifier has versatile functions and its status can
be monitored from the LCD on the front panel. The
amplifier can be also operated from the front buttons and can be monitored and controlled via SNMP.
EDFA and EYDFA
The increasing capacity of wavelength-division multiplexing (WDM) transmission systems requires higher
optical output power of EDFAs. Higher output in traditional EDFAs causes nonlinear effects that could result
in signal distortion.
Traditional EDFAs have been optimized for improving amplification efficiency, but designs that improve
efficiency increase nonlinearity, which makes it complicated to achieve low nonlinearity with traditional
EDFAs.
Use of the EYDFAs makes it possible to achieve a high-power amplifier that combines both low nonlinearity
and high conversion efficiency, which conventionally have been a trade-off relationship.
There are some limitations to EYDFA technology. It can only be used in a narrow bandwidth window. Due
to video signal degradation in extreme network conditions such as long transmission distances, it is not
recommended to cascade EYDFA optical amplifiers, unless used as the last amplifier in a chain.
EDFA - redundancy options
Optionally, several EDFAs with redundant power supplies are available. These automatically switch to
the secondary PSU if the primary fails. Additionally, the EDFAs have a built-in protection fail-over switch,
where loss of signal from the primary source will make it switch to a secondary source, thereby allowing
increased redundancy in the CATV network.
Optical protection switch
Insertion loss (dB)
1
Optical isolation (dB)
Typical 65 (min. 55 dB)
Switching time (ms)
2.5 (max. 4)
Switch type
Latching
Lifetime
10.000.000 cycles
Failover EDFA in RF overlay setup
LT1
1:16 - 64
FHT GATEWAY
1:16 - 64
1:16 - 64
LT2
EDFA
+ Failover switch
High density splitter
11
edfa - characteristics
Optical specifications
600-series
800-series
Optical wavelength (nm)
1545 to 1565
1530 to 1566
Optical input power (dBm)*
64814 and 64820: -5 to +10
All other: -10 to +10
-5 to +10
Optical output power (dBm)
See ordering information
See ordering information
± 0.5
± 0.5
1
1
Optical isolation (dB)
> 30
> 30
Optical return loss (dB)
> 45
> 40
Noise figure (dB)*
< 5.5
< 5.5
Polarization mode dispersion (ps)
0.4
1.0
Polarization dependence gain (dB)
0.3
0.5
-30 (At input and output)
-30 (At input and output)
SC/APC, SMF
SC/APC, SMF, other types available
upon request
Accuracy of output power (dB)
Uniformity maximum (dB)
Pump leakage (dBm)
Optical connector type
Electrical specifications
Power supply type
230 VAC
230 VAC or 48 VDC
100 - 240 (Frequency 50/60 Hz)
100 - 240 (Frequency 50/60 Hz)
Supply voltage DC (V)
-
36 - 75
Number of power supplies
1
1 or 2
43.6 x 483 x 252
43.6 x 483 x 490 †
43.6 x 483 x 350 (1U)
88 x 483 x 350 (2U)
-40 to +85
-40 to +85
Supply voltage AC (V)
Mechanical specifications
Physical dimension (H x W x D mm)
General
Storage temperature (°C)
Operating temperature (°C)
-5 to 55
0 to 50
Storage humidity (%)
0 to 95
0 to 95
0 to 85 (Non-condensing)
0 to 95 (Non-condensing)
64652 to 64655: 1 port, DB9 connector (38400 bps baud rate)
All other: 1 port RJ45 connector
(38400 bps baud rate)
1 port, RJ45 connector (38400 bps
baud rate)
1 port, RJ45 connector (10/100
Mbps)
1 port, RJ45 connector (10/100
Mbps)
Operating relative humidity (%)
Communications connectors
RS232
Ethernet
Differences in 880-series specifications from 800-series
Optical specifications EYDFA
Optical wavelength (nm)
Optical input power (dBm)*
Noise figure (dB)
1545 to 1560
-5 to +10
Typ. 5
Uniformity (max. dB)
1.5
Optical isolation (dB)
> 30
General
Operating temperature range (°C)
Dimensions (H x W x D mm)
0 - 50
88 x 350 x 304
*
Test condition where Input power = 0 dBm at 1550 nm and measured within operating temperature range.
†
Only applicable for item no.: 64656 - 64657
edfa - ordering information
Applications
Features
- Long-haul Telecommunications
- CATV Systems
- P2P/PON FTTH/FTTB Networks
-
-
-
-
-
High saturation output power
CATV field–proven low noise figure
Wide input dynamic range
Stable output power over wide temperature range
Control and monitoring with SNMP
600-series
Output power
Number of
outputs
Power consumption
(W)*
Height
EDFA-17-220-SA-01-S
17 dBm
1
< 30
1U
Compact depth
EDFA-17-220-SA-02-S
17 dBm
2
< 30
1U
Compact depth
64654
EDFA-17-220-SA-03-S
17 dBm
3
< 30
1U
Compact depth
64655
EDFA-17-220-SA-04-S
17 dBm
4
< 30
1U
Compact depth
64656
EDFA-19-220-SA-04-S
19 dBm
4
< 75
1U
Web management
64657
EDFA-21-220-SA-04-S
21 dBm
4
< 75
1U
Web management
64814
EDFA-17-230-SA-04-S
17 dBm
4
< 45
1U
Front connectors
64820
EDFA-21-230-SA-04-S
21 dBm
4
< 50
1U
Front connectors
Output power
Number of
outputs
Power consumption
(W)*
Height
Item no.
Type no.
64652
64653
Notes
800-series
Item no.
Type no.
Notes
64821
EDFA-17-DUAL-SA-01-S
17 dBm
1
< 20
1U
Dual PSU, front connectors
64824
EDFA-17-DUAL-SA-04-S
17 dBm
4
< 30
1U
Dual PSU, front connectors
64825
EDFA-19-DUAL-SA-08-S
19 dBm
8
< 65
2U
Dual PSU, front connectors
64826
EDFA-21-DUAL-SA-04-S
21 dBm
4
< 55
1U
Dual PSU, front connectors
64827
EDFA-21-DUAL-SA-08-S
21 dBm
8
< 80
2U
Dual PSU, front connectors
64830
EDFA-21-DUAL-SA-01-S
21 dBm
1
< 25
1U
Dual PSU, front connectors
64831
EDFA-17-DUAL-SA-01-S
17 dBm
1
< 20
1U
Dual PSU, front connectors
64832
EDFA-17-DUAL-SA-02-S
17 dBm
2
< 25
1U
Dual PSU, front connectors
64833
EDFA-17-DUAL-SA-03-S
17 dBm
3
< 25
1U
Dual PSU, front connectors
64834
EDFA-17-DUAL-SA-04-S
17 dBm
4
< 30
1U
Dual PSU, front connectors
64835
EDFA-19-DUAL-SA-04-S
19 dBm
4
< 45
1U
Dual PSU, front connectors
64836
EDFA-21-DUAL-SA-04-S
21 dBm
4
< 55
1U
Dual PSU, front connectors
64837
EDFA-21-DUAL-SA-08-S
21 dBm
8
< 80
1U
Dual PSU, front connectors
Output power
Number of
outputs
Power consumption
(W)*
Height
880-series
Item no.
Type no.
Notes
64881
EYDFA-21-DUAL-SA-04
21 dBm
4
< 55
1U
Dual PSU, front connectors
64882
EYDFA-21-DUAL-SA-08
21 dBm
8
< 80
2U
Dual PSU, front connectors
64883
EYDFA-21-DUAL-SA-16
21 dBm
16
< 46
2U
Dual PSU, front connectors
64884
EYDFA-19-DUAL-SA-32
19 dBm
32
< 50
2U
Dual PSU, front connectors
Other types available upon request
*
Measured maximum consumption.
13
single mode dual window couplers
(1x2 way)
Product information
Optical couplers are often used in network design, either for
tap-off or to divide/combine optical signals. For this purpose
DKT can offer a range of 1x2 couplers with a splitting ratio
ranging from 5/95 to 50/50 using fused technology.
These couplers feature low insertion loss and are specially
designed for broadband networks as well as long-haul
transmission systems. SC/APC are available as standard
connectors. Other connectors can be ordered upon request.
Features
-
-
-
-
-
Complete range from 5/95 - 50/50
High stability
Low insertion loss
High quality connectors
High network uptime
Item no.
Type no.
Coupler ratio %
Typical insertion loss (dB) *
69802
OSP-S-5050-SC/APC
50 / 50
3.1
69806
OSP-S-5545-SC/APC
45 / 55
3.6 / 2.7
69811
OSP-S-6040-SC/APC
40 / 60
4.3 / 2.3
69816
OSP-S-6535-SC/APC
35 / 65
4.7 / 2.0
69821
OSP-S-7030-SC/APC
30 / 70
5.5 / 1.6
69826
OSP-S-7525-SC/APC
25 / 75
6.1 / 1.4
69831
OSP-S-8020-SC/APC
20 / 80
7.5 / 1.0
69836
OSP-S-8515-SC/APC
15 / 85
8.4 / 0.8
69841
OSP-S-9010-SC/APC
10 / 90
10.6 / 0.5
69846
OSP-S-9505-SC/APC
5 / 95
13.5 / 0.3
Parameter
Uniformity (dB)
Data
max. 0.6
Polarization sensitivity (dB)
0.2
Operating wavelength (nm)
1260...1360 & 1430...1600
Return loss / Directivity (dB)
Operation temperature range (°C)
Connector type
Fibre type
Port configuration
Dimensions (H x W x D mm)
* Measurements without connectors
≥ 55
-40...85
SC/APC, Other types available upon request
G.652.D 9/125/3000 µm
1x2
98 x 14 x 8.5
single mode tree couplers
(1x3 to 1x64 way)
Product information
Tree couplers are very often used to divide or combine
signals from different locations in an optical network.
For these applications DKT has a wide range of couplers to split and combine signals from 1x3 lines up to
1x64 lines.
The couplers feature low insertion loss, low excess
loss, high directivity and are specially designed for
long-haul telecommunications, CATV systems and LAN
networks.
SC/APC is used as standard. Other connector types are
available upon request.
Features
-
-
-
-
-
High stability
Low insertion loss
High quality connectors
High network uptime
Option for 19-inch 1HU
Item no.
Type no.
Port configuration
Typical insertion loss (dB)
69851
OSP-S-03-28-SC/APC
1x3
4.9
69856
OSP-S-04-28-SC/APC
1x4
6.2
69866
OSP-S-06-28-SC/APC
1x6
8.0
69886
OSP-S-08-28-SC/APC
1x8
9.3
69891
OSP-S-16-28-SC/APC
1 x 16
12.4
69895
OSP-S-24-28-SC/APC
1 x 24
15.6
69896
OSP-S-32-28-SC/APC
1 x 32
17.0
Other types available upon request
Parameter
Data
Uniformity (dB)
0.10 to 1.2 (1x4), 1.8 (1x8), 2.4 (1x16), 3.0 (1x32)
Polarization sensitivity (dB)
0.10 to 0.4 (1x4), 0.6 (1x8), 0.8 (1x16), 1.0 (1x32)
Operating wavelength (nm)
1260...1360 & 1430...1600
Return loss / Directivity (dB)
Operation temperature range (°C)
Connector type
Fibre type
Dimensions (H x W x D mm)
≥ 55
-40...85
SC/APC, Other types available upon request
G.652.D 9/125/3000 µm
100 x 80 x 8.5
15
high density ftth splitter, 19-inch rack
type
Product information
The OSP19-SC/APC is an optical splitter with SC/APC
termination in a 19-inch 1U rack.
In front of the chassis there is features a fiber management
tray, making it easier to handle high quantities of fibres
in the rack. Additionally, the mounting brackets are depth
adjustable, allowing more flexibility with different rack
cabinets.
Tree-couplers are very often used to divide or combine
signals from different locations in an optical network. For
these applications DKT has a range of couplers to split and
combine signals from 1x16 lines and up to 1x64 lines in a
one height unit.
Empty 19” housing for custom
configuration is also available.
The housing has 25 ports, one marked as
“IN” and 24 ports numbered from 1-24.
The package also contains screws for
fastening adaptors.
These products feature low insertion loss, high directivity
and are specially designed for CATV communication and
FTTH/FTTx communication networks.
Type*
Features
-
-
-
-
-
High stability
Low insertion loss
19-inch mounting
High quality connectors
High network uptime
Item no.
Housing
69799
SC/APC Adaptor
67200
SC/PC Adaptor
67202
LC/APC Duplex Adaptor
67207
*Other types available upon request
19-inch rack optical splitter
Type
16-way
32-way
64-way
Item no.
69703
69700
69710
Typical insertion loss (dB)
≤ 14.0
≤ 17.1
≤ 21.5
Typical uniformity (dB)
≤ 1.5
≤ 1.5
≤ 2.5
Polarization dependent loss (dB)
Operating wavelength (nm)
Return loss / Directivity (dB)
Operation temperature range (°C)
Port configuration
Connector type
Dimensions (H x W x D mm)
Other types available upon request
≤ 0.3
≤ 0.3
≤ 0.4
1260 ~ 1610
1260 ~ 1610
1260 ~ 1610
≥ 55
≥ 55
≥ 55
-40...85
-40...85
-40...85
1 x 16
1 x 32
1 x 64
SC/APC
SC/APC
SC/APC
44 x 483 x 170
44 x 483 x 170
44 x 483 x 170
ftth splitter, 19-inch rack
type with 64x wdm module
Product information
The OSP19-64xWDM-LC/APC is an optical splitter with duplex LC/APC termination in a 19-inch 1U rack.
This enables very high density.
In front of the chassis features a fiber management tray, making it easier to handle high quantities of
fibres in the rack (see picture on page 16). Additionally, the mounting brackets are depth adjustable,
allowing more flexibility with different rack cabinets.
Multiplexers are commonly used to divide or combine signals from different locations in an optical
network. This model has built-in Wavelength-division multiplexing (WDM).
These products feature low insertion loss, high directivity and are specially designed for CATV and FTTH/
FTTx networks. This product is optimized for networks where IP and RF is distributed via a single fibre to
the curb/building/home.
Access Switch
Features
High stability
Low insertion loss
Depth adjustability
High quality connectors
Fiber management tray
Forward:
Return:
Laser Transmitter
EDFA
CATV IN
Forward:
DATA IN
1490 nm
1310 nm
1 - 64
-
-
-
-
-
1550 nm
OSP19-64xWDM-LC/APC
1 - 64
COMMON OUT
1310+1490+1550 nm
WDM
WDM
WDM
19-inch rack optical splitter with WDM
Type
64-way
FHT GATEWAY
FHT GATEWAY
Item no.
Typical insertion
loss (dB)
69604
CATV In
≤ 21.6
DATA In
≤ 1.0
Typical uniformity for CATV In (dB)
Polarization dependent loss (dB)
Common
Operating
wavelength (nm)
Isolation (dB)
≤ 2.5
≤ 0.4
1260 - 1620
CATV In
1530 - 1620
DATA In
1260 - 1360; 1460 - 1500
CATV In
≥30
DATA In
≥15
Return loss / Directivity (dB)
≥ 50
Operation temperature range (°C)
-40...85
Storage temperature range (°C)
-40...85
Fibre type
SMF-28e
Port configuration
Connector type
CATV IN: 1, DATA IN: 64, COMMON OUT: 64
CATV In
SC/APC
DATA In & Common
LC/APC
Dimensions (H x W x D mm)
44 x 483 x 250
Other types available upon request, for example 16-way
17
Advantages
- Value line – compact deep fibre optical node
- High system performance – high levels/low noise
- Output splitter incorporated within the node
- Single compact unit, housing fibre optic receiver
and a versatile RF amplifier
- Competitive price/performance
fibre-to-the-building (fttb) nodes
Product Introduction
The product line consists of two different series. Firstly, the AO series,
which is a compact and versatile FTTx node for two-way transmission. It
provides an efficient way to manage and control the roll-out of projects
and new services. The all-in-one active element delivers high output levels
for distribution or low level output for trunk deployments.
Secondly, the OE series, which is a deep fibre FTTC node ideal
for multimedia applications. This pushes fibre directly to the
curb in densely populated areas. Whilst operating with a low
power consumption level, this all-in-one element delivers high
output levels for distribution in any broadband HFC network
environment.
Both series have a variety of configuration possibilities and
can be expanded to meet the future needs of a growing and
changing network.
Ordering information
Type no.
AOL 801 V1
AOM 801 V1
OEM 801 H1
Item no.
65807
65801
65804
Line
Mains
Mains
Power supply
Forward path, optical section
Optical wavelength
AO 801V1
OE 801H1
1290 - 1600 nm
1290-1600 nm
Optical input power level
-6 to +2 dBm
-6 to +2 dBm
Equivalent current noise @ 47 / 862 MHz
8 / 6 pA/√Hz
8 / 6 pA/√Hz
47 - 862 MHz
47-862 MHz
Forward path, coaxial section
Bandwidth (depending on diplexer modules)
Output level - high gain (optical link specifications)
102-112 dBμV
100-110 dBμV
CTB (42 ch CENELEC) @ 0 dBm / 4.5% OMI
62 dB @ 110 dBμV
62 dB @ 110 dBμV
CSO (42 ch CENELEC) @ 0 dBm / 4.5% OMI
65 dB@ 110 dBμV
65 dB @ 110 dBμV
94 - 106 dBμV
-
CTB (42 ch CENELEC) @ 0 dBm / 4.5% OMI
68 dB @ 100 dBμV
-
CSO (42 ch CENELEC) @ 0 dBm / 4.5% OMI
65 dB @ 100 dBμV
-
5-65 MHz
5-65 MHz
Line power, voltage
24-65 VAC
-
Line power, current
1080-450 mA
-
Mains power, voltage
175-260 VAC
175-260 VAC
Output level - low gain (optical link specifications)
Return path
Bandwidth (depending on diplexer modules)
General
Power consumption (incl. return path)
Internally used optical connector
Coaxial outputs
19 W
15 W
SC/APC
SC/APC
PG11
PG11
200 x 180 x 82 mm
200 x 180 x 82 mm
2 kg
2 kg
Physical
Dimension (H x W x D)
Weight
Note: all specifications are with 0 dB link modules. If other modules are inserted, then
please correct for insertion loss.
Separate brochure is available.
19
Advantages
-­ The easiest way to add TV/FM services to an FTTH network
- Cost optimized - cost per TV/FM channel / service
­- An open opportunity to add IP services at any time
-­ No need for set-top boxes
-­ Easy installation - ease of use - plug and play
- Services: TV/FM, DVB-C, DVB-T, DAB
fibre-to-the-home (ftth) cpe gateway
Product Introduction
There are two models of FTTH gateways. The 796xx series is a full-size gateway, ranging from
management to Multiport Ethernet and VoIP. The 797xx series is a very compact gateway, offering the
most basic features for optical to electrical conversion.
Both product series follow the philosophy of utilizing a “two-box” rather than an “all-in-a-box” solution.
It is DKT’s belief to separate the OSI layers 1, 2 and 3. This results in a cost-efficient base installation,
allows for home network scalability and also permits several independent service providers. This ensures
that the base installation does not require upgrading to comply with wireless technology changes and
other technologies.
This brochure provides an overview of the benefits associated with the different types of FTTH gateways
in the DKT portfolio. Each section provides an overview of the different models.
Summary
796xx series
The 796xx series offers a wide range of features, spanning from multiport Ethernet
and VoIP, to more advanced management options such as SNMP and TR-069. This also
supports Wi-Fi.
The development of the 796xx series has primary focus on the following two
parameters:
•
Open-source firmware
-- Allows customers to deploy specific features and functions
-- Non-proprietary solutions
-- Can be integrated into any OSS/BSS
•
Flexible platform
-- More than 16 variants available
-- Supports CATV, VoIP and WiFi as options
-- Same firmware across all variants
-- Fiber management cassette as an option
797xx series
The 797xx series passive unit includes as standard a fiber management cassette for
G.657A Bend-insensitive Single Mode Fiber installation, 1x SC/PC and 1x SC/APC
adaptor and two pigtails.
The 797xx series active unit enables RJ45 and RF/CATV output (optional).
The development of the 797xx series has primary focus on the following three parameters:
•
Low installation/deployment costs
-- Simple to install
-- Cheap to deploy as the passive and active parts are separated
-- Permits installation at the fiber entrance of the premises
-- Business case examples indicate that it will be feasible to install in all homes
•
Technology/Vendor agnostic
-- The passive FTU can be used for Point-to-Point (P2P) and Passive Optical Network (PON) solutions
as a passive ONT
-- Can be used to connect to third-party equipment
•
Neutral and flexible design
-- Standard euro outlet form factor, customer perceives this unit as an outlet
-- Establishes a clear demarcation point between the network and home installation
-- Comes as standard with 1 fiber for FTTH and 1 fiber for RF/CATV-overlay
-- Not a proprietary solution, can be adopted in environments with third-party equipment
21
popkit solution
Product information
The DKT RF overlay solution has been designed for professional operators and solution providers.
Consequently, there is strong focus on CAPEX and OPEX figures in the design and deployment phases.
When installing a number of FTTH Point-of-Presence (PoP) stations with RF and data equipment, it is
important to consider the deployment process and its efficiency. Ease of installation and efficiency play an
important role and DKT offers unique OPEX savings.
DKT will gladly assist in designing a tailored PoP kit solution. A complete package containing all components
required when installing a dedicated PoP location in the field. Hence, a PoP kit solution converts several
item numbers into a single item number - it includes all the items for the PoP.
By providing easy-to-install single-pack end-to-end PoP kits, operators and solution providers benefit from a
concept designed for OPEX savings. These benefits include:
• Efficiency in the field, all components prepacked and ready for installation.
• Unique savings as regards warehouse handling by being simple and efficient.
• Simple purchase and logistics without mistakes.
DKT can tailor its product portfolio to match the requirements for RF-overlay distribution, also includes also
optical passive products, for example patch cords, attenuators etc.
An example of a PoP kit solution designed and ready for a 1024 subscriber installation.
23
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