Related Manuals for Questtel L-RF-32mW-TX
Summary of Contents for Questtel L-RF-32mW-TX
- Page 1 CATV 32 mW RF Optical Transmitter 47-750/862/1003 MHz User Manual L-RF-32mW-TX www.questtel.com sales@questtel.com...
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Page 2: Special Tips
L-RF-32mW-TX Optical Transmitter User Manual Foreword Foreword This manual applies to 1310nm AM direct modulated optical transmitter with SNMP network management interface. It mainly describes the performance characteristics, technical parameters, installation debugging, common troubleshooting, and other related content of the product. In order to ensure that the equipment can be successfully installed and safely operated, please read this manual carefully before installing and debugging the equipment. -
Page 3: Product Summary
L-RF-32mW-TX Optical Transmitter User Manual 1. Product Summary 1310nm AM direct modulated optical transmitter is the most important equipment to construct the CATV HFC network. It mainly used for the long distance optical fiber transmission of TV image signal, digital television signal, telephone voice signal and data (or compressed data) signal. -
Page 4: Block Diagram
L-RF-32mW-TX Optical Transmitter User Manual 3. Block Diagram Note: Adopts butterfly DFB laser or coaxial DFB laser. 4. Technology Parameters 4.1 Link test conditions Special instructions: The performance parameters of this manual according to the measuring method of GY/T 143-2000 <Specifications and methods of measurement on AM optical transmitter and receiver used in CATV systems>, and... - Page 5 L-RF-32mW-TX Optical Transmitter User Manual Input return loss ≥ 16（47-550MHz） ； ≥ 14（550-750/862/1003MHz） C/CSO ≥ 60 C/CTB ≥ 65 ≥ 51 AGC control range ±5 MGC control range 0-10 Power supply voltage AC 110V-250V（50Hz） Consumption Operating °C 0 -- 45...
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Page 6: External Function Description
L-RF-32mW-TX Optical Transmitter User Manual 5. External Function Description 5.1 Front Panel Description Schematic diagram of the front panel 1) Power indicator: The light is on while the switching power supply inside is working. 2) Device running indicator: This indicator will flash after the device start running. -
Page 7: Rear Panel Description
L-RF-32mW-TX Optical Transmitter User Manual 5.2 Rear Panel Description Schematic diagram of the rear panel 1) RF signal input. 2) RS232 interface (Console): Used for configuring the network management parameters. 3) LAN interface: correspond with IEEE802.3 10Base-T, used for network management. - Page 8 L-RF-32mW-TX Optical Transmitter User Manual 5.3 Displayed Parameter description 1) Power on, if the key is on the off position, shows Product’s Logo and model 2) Turn the key to the on position, shows the turn on delay: Delay countdown...
- Page 9 L-RF-32mW-TX Optical Transmitter User Manual RF control mode at present The offset of control level in the AGC mode The attenuation of electrically controlled attenuator in the MGC mode Switching power supply output +5V supply voltage Switching power supply output -5V...
- Page 10 L-RF-32mW-TX Optical Transmitter User Manual 6) Setting menu Press “Enter” key into the menu Content Meaning Set the displayed optical power unit Turn on or off the buzzer alarm Set the control mode of the RF signal: AGC or MGC...
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Page 11: Installation Debugging
L-RF-32mW-TX Optical Transmitter User Manual 6. Installation debugging 6.1 Unpack and Check 1. Insure the package is not defaced. If it has any damage or water mark, please contact local agency or carrier. 2. After unpacking, check equipments and accessories according to package list. Any question, please contact local agency or our company. - Page 12 L-RF-32mW-TX Optical Transmitter User Manual 7. Common Failure Analysis and Troubleshooting Failure phenomenon Failure cause Solution Check if the power supply is normal (should be AC: 110V-250V). If the Power on, the front panel Switching power supply couldn't supply voltage is normal, it could be a display screen and power start;...
- Page 13 L-RF-32mW-TX Optical Transmitter User Manual of the laser is not enough. the optical transmitter and adjust to 3. The C/N index of system link the device required input range. signal is too low. (72--88dBμV). When the input channel number less than 15, set to the MGC control mode.
- Page 14 L-RF-32mW-TX Optical Transmitter User Manual The Clean and Maintenance Method of Optical Fiber Connector In many times, we consider the decline of the optical power as the equipment faults, but actually it may be caused by that the optical fiber connector was polluted by dust or dirt.
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Page 15: Safety Instructions
For additional safety, plug the attached dust caps into the optical transceivers when the fiber optic cable is unplugged. Direct viewing into optical connectors should be avoided at all times! WARNING ! www.questtel.com sales@questtel.com...
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