To make sure that you can operate this equipment correctly, please
read this manual carefully first.
Refer all servicing to qualified service personnel. To reduce the
risk of electrical shock, do not perform any servicing other than
that contained in the installation and troubleshooting
This product contains PIN diode, an electrostatic sensitive device.
You should abide by precautions on electrostatic sensitive devices
in handle and operation. If not, perpetual degrade can be
Turn off power supply and clean terminal surface of SC/APC
connector by cotton-dipped alcohol, if it is contaminated.
Avoid shock of pulse from power supplies, and don't turn on or turn
off the equipment frequently, if not, operating life of receiver
will be much reduced.
To avoid damage caused by thunder stroke or accident, the case of
optical receiver must be well grounded.
After finish filed installation, please tighten the four bolts in
the housing, and make sure to curve the cable at moderate radius
for water sinking.
This receiver performs light wave-to-RF signal conversions in CATV
transmission network. It is a high performance, six/four outputs
node, designed o support the high quality video (digital and
analog) and data services over advanced hybrid fiber/coax (HFC)
networks. Equipped with reverse transmitter, it can provide tow-way
Use high reliability and wide range (35-70Vac/160-250Vac) switch
47 through 860MHz forward bandwidth, 5 through 30MHz return
standard (other splits are available: 42/58MHz, 65/87MHz);
Four or six outputs;
Status indicating by six LEDs;
Input power range: -6~+3dBm, recommended value: -2dBm.
Before you install this receiver it must be setup to meet the power
and configuration requirements for the node location. Bench set-up
and quick check procedures are recommended to ensure proper
functioning of all components and simplify field installation.
Powering the Node
220V receiver: Plug power wire into the socket after the case is
60V receiver: This kind receiver can be conveniently powered by
applying 60Vac to housing port. You can choose output 1 ~ output 6
as AC powering port.
After power supply is correctly powered, LED will be lighted.
Quick checks-Functional Testing
Performing the procedures presented in the following subsections is
recommended before placing this receiver in service.
Forward Path Receiver
1. Confirm that your configuration is for forward path receiver.
2. Test the power input level using an optical power meter. It
should be in the range of -6~+3dBm, recommended value is -2dBm.
Verify that the relative LED indicates the right status.
3. For 0dBm input, tap output: The receiver output (output1) is
above: 106dBuV (For L type), output2 is 12dB less than output1,
output 3 is 4dB less, output4 is 16dB less, output5 is 6dB less,
ouput6 is 10dB less.
For 0dBm input, splitter output: The receiver output (output1) is
above: 102dBuV (For L type), output2 is the same as output1, output
3 is 4dB less, output4 is 4dB less, output5 is 6dB less, ouput6 is
Installation consists of splicing the service fiber cable to the
transportation fiber, installing the housing and electronics on the
messenger strand, applying power, and placing the unit in service.
It is recommended that the equipment has been correctly configured,
and tested on the bench.
The service cable can be spliced to the transportation cable at any
time during the node installation. Splicing does not need to
coincide with the installation of the housing.
Fusion splicing is recommended because it has low insertion loss
and is the most reliable method. The splicing should be done by a
technician experienced in splicing fiber.&
|Input Return Loss (dB)|
|Input Power (dBm)|
|FC/APC or SC/APC|
|In-band Flatness (dB)|
|± 0.75 (750MHz)|
|Gain adjustable range (dB)|
|AGC accuracy (dB)|
|± 3/ ± 0.3 (Optional)|
|Level adjustable range (dB)|
|Output Return Loss (dB)|
|Nominal RF output level (dBÎ¼V)|
|For L type: 106|
(@0dBm receiving, 80dBuv input of transmitter)
|Output Power (mW)|
|Reverse optical Laser Bandwidth (MHz)|
|In-band Flatness (dB)|
|‰¥ 65dB (note 1)|
|‰¥ 63dB (note 1)|
|Input Impedance ( W )|
|Input voltage (V)|
|Operating Temperature (°C )|