MUL-FDN-870 Fiber Distribution Node FEATURES • 54

MUL-FDN-870
Fiber Distribution Node
FEATURES
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54 through 870 MHz forward passband, 5 through 42 MHz return standard (other splits available)
Optical receivers - up to four
Optical transmitters - up to two
Four independent RF outputs
Redundant powering capability
Optional status monitoring*
User-friendly fiber management
60/90Vac volt powering
Modular plug-in diplex filters, equalizers and attenuator
Custom configuration for unique system requirements
*It will be available soon.
Distributed by: Multicom, Inc., 1076 Florida Central Parkway, Longwood, FL 32750
Phone: 407 / 331-7779
Fax: 407 / 339-0204 Toll Free: 800 / 423-2594
www.multicominc.com
MUL-FDN-870 - 1
MUL-FDN-870
Fiber Distribution Node
DESCRIPTION
The MUL-FDN-870, Optical Distribution Node is a high performance, four balanced output node. With high output
levels and performance to 870MHz, it provides an ideal platform to support the evolving technologies and
services in advanced HFC networks. Designed with full flexibility, the MUL-FDN-870 offers a variety of
configurations which are ideal for analog and digital transmission, telephony and data services. Utilizing extensive
modular design, MUL-FDN-870 can meet any advanced network requirements.
The MUL-FDN-870 offers a complete scalable solution for opto-electronic deployment in any broadband system.
Configured in sturdy, weatherproof rugged die-casting housing, suitable for strand or pedestal mounting, MULFDN-870 operates over a wide temperature range and accepts cable powering from 40VAC to 90VAC because of
its high-efficiency switch mode power supply. The unit accepts an optional redundant power supply. Internal RF
connections are made with 75Ohm type connectors. RF test connections are standard type F.
Redundant optical forward receiver and return transmitter capability in the MUL-FDN-870 allows the use of optical
path redundancy. This enables increased network reliability. The forward system receiver modules are compatible
with either 1310nm or 1550nm signals. Careful design of the receiver circuit allows for a variety of channel loading
of 80~110 NTSC analog channels, 60 or more PAL analog channels, or a combination of analog and digital
signals. Each receiver utilizes a Philips receiving hybrid to assure optimum carrier-to-noise performance.
The use of the latest technology gives the MUL-FDN-870 high signal quality with increased system reliability and
reduced maintenance. Careful attention to design and implementation of the RF circuitry provides high output
levels with excellent specifications. The unit has four identical bidirectional coaxial ports. MUL-FDN-870 offers a
wide variety of pass band options. Diplex splits are available at 35/47, 42/54 and 65/87MHz, allowing operation in
virtually any cable system worldwide. All of the bi-directional ports are capable of passing power into or out of the
unit. Separate jumper plugs configure each of the ports.
The high output level offers the ability to optimize the coaxial plant distribution from a single node and contributes
to reduce amplifier cascades, making medium to high density systems more cost effective. The performance and
output levels of the node allow it to be easily integrated into any of the current system architectures.
The Return Path system may be configured for transmitter redundancy. The functional design is ideal for critical
systems which carry internet and telephony traffic. All plug-in devices are clearly identified and easily changed as
required. Both gain and slope are adjustable, providing a number of variations through plug-in components.
Distributed by: Multicom, Inc., 1076 Florida Central Parkway, Longwood, FL 32750
Phone: 407 / 331-7779
Fax: 407 / 339-0204 Toll Free: 800 / 423-2594
www.multicominc.com
MUL-FDN-870 - 2
MUL-FDN-870
Fiber Distribution Node
Specifications
MUL-FDN-870
Forward Path, Optical:
Optical Input Range
-3dBm to +3dBm, 0dBm nominal
Optical Wavelength
1290nm to 1600nm
Output level
23.0dBmV
Pass Band
40-862MHz
Receiver Power Monitor Voltage
0.1mW/V
Fiber Connector
SC/APC, FC/APC
Flatness
±0.75dB
Test Points
-20±1.0dB
Forward Path, RF
Bandwidth
47/87~750/870MHz
Flatness
±0.65dB
Return Loss
<-16dB (~550MHz), <-14dB (550~870MHz)
Recommended Output Level(@ 0 dBm)
44.0dBmV/862MHz 42.5dBmV/750MHz
40.0dBmV/550MHz 34.0dBmV/87MHz
Distortions
CTB = -71dB, CSO = -70dB, XM = -68dB
Output Return Loss
< -12dB
Max. Gain
24/38dB
RF impedance
75Ω
Test Points
-20±1.0dB
Return Path
Optical Return Path Transmitter
DFB
FP
RF input Power
15~20dBmV
15~20dBmV
Optical Wavelength
1310nm ±10nm
1310nm ±10nm
Output Power
1-4mW
> 1mW
Return Loss
< -14dB
< -14dB
Distortions
C/N > 50
C/N > 45
CSO< -51
CSO< -45
CTB< -55
CTB< -45
Flatness
±1dB
±1dB
Fiber Connector
SC/APC, FC/APC
Working Temperature
-20ºC to +85ºC
Distributed by: Multicom, Inc., 1076 Florida Central Parkway, Longwood, FL 32750
Phone: 407 / 331-7779
Fax: 407 / 339-0204 Toll Free: 800 / 423-2594
www.multicominc.com
MUL-FDN-870 - 3
MUL-FDN-870
Fiber Distribution Node
Return Path, RF
Pass Band
5~30/65MHz
Recommended Output Level(@ 0 dBm)
35.0dBmV/65MHz 35dBmV/5MHz
Distortions
CTB = -78dB, CSO = -73dB, XM = -71dB
Flatness
±1.0dB
Return Loss
< -16dB
Max. Gain
10/18dB
Test Points
-20±1.0dB
Link Performance
C/N
>51dB
CTB
>65 dBc
CSO
>60 dBc
Frequency Response
±1.5 dB
(Carrier Loading 59 PAL analog Channels to 550MHz, 550~750MHz 33QAM64 digital Channels)
General:
AC Power
40-90Vac, 50/60Hz
DC Power
±24V, ±5V
RF Connector
F
Dimensions(L x W x H)
511 mm x 216 mm x 273 mm
Weight
19 Kg
Operating Temperature
-40ºC to +60ºC
Relative Humidity
5~95%
IMPORTANT
1. Please do not attempt to look into the optical connector with power applied, eye damage may result.
2. It is prohibited to touch the laser without any anti-static tool.
3. The optical input power should be only from -3 to +3 dBm for the best performance. The receiver may work when
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input power is lower than -3dBm, but CNR will be deteriorated; when the input power is higher than 3dBm, CTB
and CSO will be deteriorated and may even cause the damage of the optical receiving module.
Clean the end of the connector with a lint free tissue moistened with alcohol before you insert the connector into
the receptacle of the SC/APC adapter.
This machine should be grounded before operation. The grounded resistance should be <4Ω
Please carefully bend the fiber.
Specifications are subject to change without notice.
Distributed by: Multicom, Inc., 1076 Florida Central Parkway, Longwood, FL 32750
Phone: 407 / 331-7779
Fax: 407 / 339-0204 Toll Free: 800 / 423-2594
www.multicominc.com
MUL-FDN-870 - 4