Products

Suppliers
Filter Gallery
2,694

Video Fiber Transmitter Factory

Products
Video Fiber Transmitter Receiver

Sorry! No matches were found.

1080P 1 CH Fiber Optic Video Transceiver Optical Video Transmitter

1080P 1 CH Fiber Optic Video Transceiver Optical Video Transmitter

US $ 10-30 / Piece FOB
1 Piece (MOQ)
More
Main Products: Fiber Optic Patchcord, Optical Adapter, Optic Attenuator, CWDM/DWDM, Media Converter, Optical Fiber Cable, Poe Switch, PLC Splitter, MPO/MTP, Fiber Optic Distribution Box
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Takfly Communications Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2013
Chat Now Send Inquiry
1channel Coaxial BNC Video Over Fiber Optical Converter HD 1080P Video Transmitter

1channel Coaxial BNC Video Over Fiber Optical Converter HD 1080P Video Transmitter

US $ 28-43 / Pair FOB
1 Pair (MOQ)
More
Wiring Devices : Integrated Wiring
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Utop Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
2 Channel Digital Video Converter Ahd/Cvi/Tvi 1080P Coaxial BNC to Fiber Video Transmitter/Receiver

2 Channel Digital Video Converter Ahd/Cvi/Tvi 1080P Coaxial BNC to Fiber Video Transmitter/Receiver

US $ 28-68 / Pair FOB
1 Pair (MOQ)
More
Main Products: SFP Module, Fiber Media Converter, Poe Switch, Industrial Ethernet Switch, Fiber Video Converter, Eoc Extender, G/Epon Olt ONU, Dac Aoc, Fiber Patch Cord Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Utop Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
1310nm Fiber Optic Transmitter Manufacturer Digital Video CATV Hfc Networks Optical Transmitters

1310nm Fiber Optic Transmitter Manufacturer Digital Video CATV Hfc Networks Optical Transmitters

1 Piece (MOQ)
More
Certification : CE
Contact Supplier
Audited Supplier Audited Supplier Since 2009
Hangzhou Softel Optic Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2009
Chat Now Send Inquiry
Fullwell 45-2410MHz OEM&ODM Sat-If & CATV L-Band Optical Transmitter for FTTH RF Video Overlay

Fullwell 45-2410MHz OEM&ODM Sat-If & CATV L-Band Optical Transmitter for FTTH RF Video Overlay

US $ 450-900 / Piece FOB
1 Piece (MOQ)
More
Main Products: Xgs-Pon & CATV Wdm EDFA, Xgs-Pon & CATV Wdm Optical Receiver, Telecom Pre / Line / Booster Edfas, Hfc Optical Transmitter, CATV Edfas, FTTH Optical Receiver, Optical Switch, Sat-TV & CATV Transmitter / Receiver, Fiber Amplifier
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Hangzhou Fullwell Optoelectronic Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2015
Chat Now Send Inquiry
Direct Modulation Video Audio Transmitter Optical Transmitter with AGC

Direct Modulation Video Audio Transmitter Optical Transmitter with AGC

US $ 480-980 / Piece FOB
1 Piece (MOQ)
More
Condition : New
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
Fullwell Good Quality 45-2410MHz L-Band Satellite TV & CATV Optical Transmitter for RF Video Overlay

Fullwell Good Quality 45-2410MHz L-Band Satellite TV & CATV Optical Transmitter for RF Video Overlay

US $ 450-900 / Piece FOB
1 Piece (MOQ)
More
Main Products: Xgs-Pon & CATV Wdm EDFA, Xgs-Pon & CATV Wdm Optical Receiver, Telecom Pre / Line / Booster Edfas, Hfc Optical Transmitter, CATV Edfas, FTTH Optical Receiver, Optical Switch, Sat-TV & CATV Transmitter / Receiver, Fiber Amplifier
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Hangzhou Fullwell Optoelectronic Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2015
Chat Now Send Inquiry
HD Ahd/Cvi/Tvi/CVBS Twisted Pair Transmitter Passive CCTV Video Balun 8MP for Camera

HD Ahd/Cvi/Tvi/CVBS Twisted Pair Transmitter Passive CCTV Video Balun 8MP for Camera

US $ 0.1-0.95 / Pair FOB
1 Pair (MOQ)
More
Wiring Devices : Integrated Wiring
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Utop Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
8MP Video Balun CCTV Coaxial HD Twisted-Pair Video Transmitter 4K Balun 8MP

8MP Video Balun CCTV Coaxial HD Twisted-Pair Video Transmitter 4K Balun 8MP

US $ 0.1-0.65 / Pair FOB
1 Pair (MOQ)
More
Main Products: SFP Module, Fiber Media Converter, Poe Switch, Industrial Ethernet Switch, Fiber Video Converter, Eoc Extender, G/Epon Olt ONU, Dac Aoc, Fiber Patch Cord Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Utop Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
1080P High Definition Spliced Passive Video Balun Twisted Pair Transmitter for 2MP Ahd/Cvi/Tvi Cameras

1080P High Definition Spliced Passive Video Balun Twisted Pair Transmitter for 2MP Ahd/Cvi/Tvi Cameras

US $ 0.1-0.64 / Pair FOB
100 Pairs (MOQ)
More
Certification : CE, ISO, RoHS
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Utop Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
1 Channel Video & 1 Reverse RS485 Data Fiber Transmitter

1 Channel Video & 1 Reverse RS485 Data Fiber Transmitter

1 Piece (MOQ)
More
Main Products: Industrial Switch, Network Switch, Ethernet Switch, Poe Switch, Managed Switch, Rack Mount Switch, Wall Mount Switch, Enterprise Level Switch, Video Transmitter & Receiver, Ethernet Media Converter
Contact Supplier
Jiangsu HENGSION Electronic S&T Co., Ltd.

Manufacturer/Factory

Jiangsu, China
Chat Now Send Inquiry
32 Channel Video Non-Condensing Fiber Optic Transmitter and Receiver

32 Channel Video Non-Condensing Fiber Optic Transmitter and Receiver

1 Piece (MOQ)
More
Type : Analog Optical
Contact Supplier
Jiangsu HENGSION Electronic S&T Co., Ltd.

Manufacturer/Factory

Jiangsu, China
Chat Now Send Inquiry
Fiber Optic Equipment RF Remote Control Emission Transmission Equipment Optical Transmitter & Receiver Communication Module Communication Cable
FTTH Internal/External Modulation CATV 1310/1550nm Fiber Optical Transmitter

FTTH Internal/External Modulation CATV 1310/1550nm Fiber Optical Transmitter

US $ 200-3,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Fiber Optic Total Solution, Fiber Optic Cable, Fiber Optic Splice Closure, Fiber Optic Distribution Box, Fiber Optic Patchcord, Fiber Optic Fusion Splicer, OTDR, Gpon Olt ONU, Ethernet Media Converter, SFP Optical Transceiver
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shanghai Sun Telecommunication Co., Ltd.

Manufacturer/Factory

Shanghai, China Since 2024
Chat Now Send Inquiry
Daytai Direct Modulation 1550nm 10km FTTH Optical Transmitter

Daytai Direct Modulation 1550nm 10km FTTH Optical Transmitter

US $ 200-1,000 / Piece FOB
1 Piece (MOQ)
More
Certification : CE, ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
3G-SDI Emsfp, Dual Transmitter, Non-Msa, HD-BNC

3G-SDI Emsfp, Dual Transmitter, Non-Msa, HD-BNC

US $ 220-350 / Piece FOB
1 Piece (MOQ)
More
Main Products: Optic Fiber Cable, Safety Glasses, Tactical Glasses, Protective Eyewear, Safety Goggles, Hybird Car, Electric Car
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Freshere Communication (Shenzhen) Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2022
Chat Now Send Inquiry
Broadcast 16 Way SDI Bidirectional Optic Transmitter and Receiver with Optional Data, Audio, Ethernet

Broadcast 16 Way SDI Bidirectional Optic Transmitter and Receiver with Optional Data, Audio, Ethernet

US $ 70-80 / Set FOB
1 Set (MOQ)
More
Condition : New
Contact Supplier
Beijing Hcstcom Co., Ltd.

Manufacturer/Factory

Beijing, China
Chat Now Send Inquiry
FTTH Fiber Optic CATV 1310nm 1550nm Optical Transmitter

FTTH Fiber Optic CATV 1310nm 1550nm Optical Transmitter

US $ 200-3,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Fiber Optic Total Solution, Fiber Optic Cable, Fiber Optic Splice Closure, Fiber Optic Distribution Box, Fiber Optic Patchcord, Fiber Optic Fusion Splicer, OTDR, Gpon Olt ONU, Ethernet Media Converter, SFP Optical Transceiver
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shanghai Sun Telecommunication Co., Ltd.

Manufacturer/Factory

Shanghai, China Since 2024
Chat Now Send Inquiry
Fiber Optic CATV 1310nm 1550nm Optical Transmitter

Fiber Optic CATV 1310nm 1550nm Optical Transmitter

US $ 200-3,000 / Piece FOB
1 Piece (MOQ)
More
Certification : CE, ISO, RoHS
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shanghai Sun Telecommunication Co., Ltd.

Manufacturer/Factory

Shanghai, China Since 2024
Chat Now Send Inquiry
Fullwell Direct Modulated Optical Transmitter with Aol Laser

Fullwell Direct Modulated Optical Transmitter with Aol Laser

1 Piece (MOQ)
More
Main Products: Xgs-Pon & CATV Wdm EDFA, Xgs-Pon & CATV Wdm Optical Receiver, Telecom Pre / Line / Booster Edfas, Hfc Optical Transmitter, CATV Edfas, FTTH Optical Receiver, Optical Switch, Sat-TV & CATV Transmitter / Receiver, Fiber Amplifier
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Hangzhou Fullwell Optoelectronic Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2015
Chat Now Send Inquiry
Fiber Optic Transmitter 20km 1550nm Direct Modulation Optic Transmitter

Fiber Optic Transmitter 20km 1550nm Direct Modulation Optic Transmitter

US $ 200-1,000 / Piece FOB
1 Piece (MOQ)
More
Certification : CE, ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
Related Videos
  • What is 1channel Coaxial BNC Video Over Fiber Optical Converter HD 1080P Video Transmitter
    What is 1channel Coaxial BNC Video Over Fiber Optical Converter HD 1080P Video Transmitter
    Negotiable
    1 Pair (MOQ)
    Contact Supplier
  • What is 2 Channel Digital Video Converter Ahd/Cvi/Tvi 1080P Coaxial BNC to Fiber Video Transmitter/Receiver
    What is 2 Channel Digital Video Converter Ahd/Cvi/Tvi 1080P Coaxial BNC to Fiber Video Transmitter/Receiver
    Negotiable
    1 Pair (MOQ)
    Contact Supplier
  • What is 1310nm Fiber Optic Transmitter Manufacturer Digital Video CATV Hfc Networks Optical Transmitters
    What is 1310nm Fiber Optic Transmitter Manufacturer Digital Video CATV Hfc Networks Optical Transmitters
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is HD Ahd/Cvi/Tvi/CVBS Twisted Pair Transmitter Passive CCTV Video Balun 8MP for Camera
    What is HD Ahd/Cvi/Tvi/CVBS Twisted Pair Transmitter Passive CCTV Video Balun 8MP for Camera
    Negotiable
    1 Pair (MOQ)
    Contact Supplier
Best Fpv Drone Radio Transmitters IP Mesh Manet Fhss Ifs Drone Radiolink Datalink

Best Fpv Drone Radio Transmitters IP Mesh Manet Fhss Ifs Drone Radiolink Datalink

US $ 99-999 / Piece FOB
1 Piece (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Mini Tx 1310 1490 1550 1610 Nm 10MW Optical Fiber Transmitter CATV Laser Transmitter

Mini Tx 1310 1490 1550 1610 Nm 10MW Optical Fiber Transmitter CATV Laser Transmitter

US $ 69-85 / Piece FOB
1 Piece (MOQ)
More
Type : Fiber Transceiver
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
FTTH 1310nm Mini Fiber Optical Transmitter Direct Modulation Optical Transmitter with AGC

FTTH 1310nm Mini Fiber Optical Transmitter Direct Modulation Optical Transmitter with AGC

US $ 50-400 / Piece FOB
1 Piece (MOQ)
More
Main Products: Optical Receiver, PLC Splitter, Sc Fast Connector, Fiber Optic Distribution Box, ADSS Fiber Optic Cable, Optical Closure, Fiber Optic Cable Clamps, Olt ONU, EDFA, FTTH Drop Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
3G-SDI Emsfp, Dual Transmitter, Non-Msa, HD-BNC, Reclocked

3G-SDI Emsfp, Dual Transmitter, Non-Msa, HD-BNC, Reclocked

US $ 245 / Piece FOB
1 Piece (MOQ)
More
Type : Wired
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Freshere Communication (Shenzhen) Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2022
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

FTTH 2 Way Output External Modullation 1550nm Fiber Optical Transmitter

FTTH 2 Way Output External Modullation 1550nm Fiber Optical Transmitter

US $ 200-1,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Optical Receiver, PLC Splitter, Sc Fast Connector, Fiber Optic Distribution Box, ADSS Fiber Optic Cable, Optical Closure, Fiber Optic Cable Clamps, Olt ONU, EDFA, FTTH Drop Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
FTTH 1310nm 1550nm CATV Mini Fiber Optic Transmitter

FTTH 1310nm 1550nm CATV Mini Fiber Optic Transmitter

US $ 69-85 / Piece FOB
1 Piece (MOQ)
More
Certification : CE, ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
2-16MW FTTH CATV Optical Transmitter

2-16MW FTTH CATV Optical Transmitter

US $ 200-3,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Fiber Optic Total Solution, Fiber Optic Cable, Fiber Optic Splice Closure, Fiber Optic Distribution Box, Fiber Optic Patchcord, Fiber Optic Fusion Splicer, OTDR, Gpon Olt ONU, Ethernet Media Converter, SFP Optical Transceiver
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shanghai Sun Telecommunication Co., Ltd.

Manufacturer/Factory

Shanghai, China Since 2024
Chat Now Send Inquiry
1310 1550nm Mini Fiber Optic Transmitter CATV Transmitter

1310 1550nm Mini Fiber Optic Transmitter CATV Transmitter

US $ 69-85 / Piece FOB
1 Piece (MOQ)
More
Wiring Devices : ODF
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
1550nm Optical Transmitters 2 Way Output External Modulation Transmitter

1550nm Optical Transmitters 2 Way Output External Modulation Transmitter

US $ 50-400 / Piece FOB
1 Piece (MOQ)
More
Main Products: Optical Receiver, PLC Splitter, Sc Fast Connector, Fiber Optic Distribution Box, ADSS Fiber Optic Cable, Optical Closure, Fiber Optic Cable Clamps, Olt ONU, EDFA, FTTH Drop Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
Optical Transmitter 1550nm Direct Modulation with Agc

Optical Transmitter 1550nm Direct Modulation with Agc

US $ 200-1,000 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
CATV Optical Transmitter 1550nm External Modulation

CATV Optical Transmitter 1550nm External Modulation

US $ 1,000-2,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Optical Receiver, PLC Splitter, Sc Fast Connector, Fiber Optic Distribution Box, ADSS Fiber Optic Cable, Optical Closure, Fiber Optic Cable Clamps, Olt ONU, EDFA, FTTH Drop Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou DAYTAI Network Technologies Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2014
Chat Now Send Inquiry
16CH Video + 1CH RS422 Data Optical Video Transmitter

16CH Video + 1CH RS422 Data Optical Video Transmitter

US $ 420-440 / Piece FOB
1 Piece (MOQ)
More
Type : Optical Fiber Distribution Box
Contact Supplier
Shenzhen Olycom Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China
Chat Now Send Inquiry
Perfect Pre-Distortion Circuit Optical Transmitter in The FTTH Project Optical Transmitter

Perfect Pre-Distortion Circuit Optical Transmitter in The FTTH Project Optical Transmitter

US $ 200-3,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Fiber Optic Total Solution, Fiber Optic Cable, Fiber Optic Splice Closure, Fiber Optic Distribution Box, Fiber Optic Patchcord, Fiber Optic Fusion Splicer, OTDR, Gpon Olt ONU, Ethernet Media Converter, SFP Optical Transceiver
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shanghai Sun Telecommunication Co., Ltd.

Manufacturer/Factory

Shanghai, China Since 2024
Chat Now Send Inquiry
Rosa, Tosa, Bosa, Fiber Opitc Video Transmitter

Rosa, Tosa, Bosa, Fiber Opitc Video Transmitter

10 Pieces (MOQ)
Contact Supplier
Shenzhen Usource Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China
Chat Now Send Inquiry
16CH Video + 1CH RS422 Data Optical Video Transmitter

16CH Video + 1CH RS422 Data Optical Video Transmitter

1 Piece (MOQ)
More
Main Products: Industrial Fiber Switch, Video Optical Converter, Fiber Media Converter, SFP Transceiver, Poe Fiber Switch, IP Camera, PDH Multiplexer, Fiber Modem, Network Switch, Network Booster
Contact Supplier
Shenzhen Olycom Technology Co., Ltd.

Manufacturer/Factory

Guangdong, China
Chat Now Send Inquiry
20 Km Single-Mode Video Transmitter 3G HD-SDI

20 Km Single-Mode Video Transmitter 3G HD-SDI

US $ 50.12-63.69 / Piece FOB
10 Pieces (MOQ)
More
Certification : CE, ISO, RoHS
Contact Supplier
GYSUNTEC TECHNOLOGY CO., LTD.

Manufacturer/Factory

Guangdong, China
Chat Now Send Inquiry
Video Fiber Transmitter Receiver
View More

Related Searches

Fiber Optic Cable Fiber Optic Equipment Optical Fiber Product Fiber Optical Equipment Fiber Optic Product Plastic Optical Fiber Switch Power Supply Factory Optical Fiber Cable Terminal Connector Factory Optical Fiber Communication

Browse by Categories

Home > Electrical & Electronics > Telecommunication & Broadcasting > Fiber Optic Equipment
1/75
TOP

Search Filter

Categories

More Less
  • Fiber Optic Equipment
  • RF Remote Control
  • Emission Transmission Equipment
  • Optical Transmitter & Receiver
  • Communication Module
  • Communication Cable
  • Radio & TV Broadcasting
  • Optical Fiber
  • CCTV Camera
  • Electric Wire & Cable

Certification

More Less
  • CE
  • ISO
  • RoHS
  • CCC
  • FCC

Condition

More Less
  • New

Information Content

More Less
  • Video
  • Text
  • Audio
  • Picture

Usage

More Less
  • Radio
  • Car
  • Plane
  • Ship
  • Observatory
  • Television
  • Satellite

Work Mode

More Less
  • FDD
  • TDD

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Individuals/SOHO
  • Other

Company Location

More Less
  • Guangdong
  • Zhejiang
  • Beijing
  • Jiangsu
  • Shandong
  • Henan
  • Anhui
  • Hubei
  • Sichuan
  • Shanghai
  • Hunan
  • Fujian
  • Hebei
  • Tianjin
Reset Done