Blonder tongue FRRA-S4A-860-43P, Инструкция по эксплуатации

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7 FRRA Series
Instruction Manual
Returning Product for Repair (or Credit)
A Return Material Authorization (RMA) Number is required on all products returned to Blonder
Tongue, regardless if the product is being returned for repair or credit.
Before returning product,
please contact the Blonder Tongue Service Department at 1-800-523-6049, Ext. 4256 or visit our website:
www.blondertongue.com for further information.
Troubleshooting
Commercially available test equipment such as an Optical Signal Locator (OSL) is an effective tool for locating problems
with the fiber optic cables. The OSL can also be used to verify that the transmitter is indeed putting out light. Other
common problems include using a transmitter as a receiver and vice versa, lack of continuity in the optical fiber, lack
of power, or improper input levels. If problems persist contact Blonder Tongue’s Technical Solutions Department.
Problems and Comments
Problem LED Status-Check Comments
No optical power at the Node.
Orange Optical Power LED Check power at the Tx.
If there is power at the Tx, verify proper
fiber is connected to the node. If the
proper fiber is connected, ensure the
integrity of the fiber.
Signal out of node is noisy.
Orange Optical Power LED Check optical power input via
power monitor jack at the node.
See Specifications on Page 3 for
proper minimum levels (≥ 6 dBm).
No RF signal out of node.
Green Optical Power LED
Check the node power connection.
Check attenuator/jumper
installation Check 117 VAC at the power supply.
Signal out of node is distorted.
Status LED - Green or Red
Verify RF input signal on Tx.
Verify RF output level.
Verify fiber size/singlemode.
Check optical power at the node
input. Verify RF output level.
Fiber must be 9/125 µm. The Rx
optical input power and RF output
level are within specifications.
If RF output is >48 dBmV, the RF
amplifier is being overdriven. Use
an attenuator (Stock No. 4006A-xx)
to decrease RF output from optical
board to the RF amplifier stage.
Refer to “Attenuator Selection” on
page 6.