Antenk mini usb:The small USB socket found on digital cameras, external hard drives, USB hubs and other equipment. Mini USB is much smaller than USB Type A and B but twice as thick as Micro USB (see illustration below).
MINI USB, also known as Mini USB, is a USB interface standard. USB is the abbreviation of universal serial bus in English, which means "universal serial bus" in Chinese. It is a technology developed for data transmission between PC and digital devices. Standard USB, MINIUSB and microusb have become the most common USB interfaces. Compared with standard USB, MINIUSB is smaller and suitable for small electronic devices such as mobile devices.
Mini USB is divided into a type, B type and ab type. Minib type 5pin interface is the most common interface. Due to its excellent anti misplug performance and small size, it is gaining the favor of many manufacturers. This interface is widely used in card readers, MP3, digital cameras and mobile hard disks.
Mini USB a, B connectors and their contacts (not drawn to scale) Mini USB Connector contact function Mini USB ShenZhen Antenk Electronics Co,Ltd , https://www.pcbsocket.com
I. Project name and number Project name: Meteorological special outdoor two-color LED electronic display project of Sihong County Meteorological Bureau Project No.: shzfcg[2009] No.9 II. Brief description of the project: Meteorological special outdoor two-color LED electronic display of Sihong County Meteorological Bureau The project, detailed configuration list and technical performance indicators can be found in the technical response of the fourth part of the negotiation document.
Third, the manufacturer qualification requirements Negotiating producers to participate in this government procurement activities should comply with the provisions of Article 22 of the "People's Republic of China Government Procurement Law" and meet the following conditions:
1. The bidder must have independent legal personality and good reputation;
2. The bidder must have the qualification for the production of meteorological special equipment;
During the negotiation, the bidder shall provide the business license, tax registration certificate, and meteorological special equipment production qualification of the unit, the original qualification certificate and the photocopy (with the official seal of the unit).
Fourth, the negotiation documents release information:
(1) Time for the negotiation of documents to be sold: June 3, 2009 - June 8, 2009. 8:30-11:30 am, 14:30-17:30 pm (excluding holidays).
(II) Place of Negotiation Documents for Sale: Sihong County Tendering and Bidding Center (Government Purchasing Center, 6th Floor, South Building, Sihong County)
(3) Ways of selling negotiating documents: on-site purchase (outside producers can make appointments by telephone, fax, etc., but they must perform formal registration procedures before negotiation, otherwise they will not accept their bidding documents.)
(4) The price of the negotiation documents: 270 yuan / share, the documents will not be refunded after the sale.
V. Documents and materials (original and photocopy) to be carried during negotiations
(1) Business license, tax registration certificate and business license of the enterprise legal person;
(2) Licenses for engaging in production and business activities of the industry;
(3) Other qualification certificates related to this procurement activity.
Six, bidding documents receive information
(1) The time for the bidding documents to be received: 14:00 on June 10, 2009
(II) Deadline for acceptance of bidding documents: June 10, 2009, 14:30
(III) Location of bidding documents: Sihong County Tendering and Bidding Center (Government Purchasing Center, 6th Floor, South Building, Sihong County)
(IV) Recipient of bidding documents: Liu Weiyuan VII. Negotiating relevant information
(1) Negotiation time: June 10, 2009, 14:30
(II) Negotiation Location: Sihong County Tendering and Bidding Center (Government Purchasing Center, 6th Floor, South Building, Sihong County)
8. If the above content changes, it will be notified on the relevant online media. Company Name: Sihong County Government Procurement Center Contact: Liu Weiyuan Tel: 0527-89889055 E-mail: Fax: 0527-89889051 Postal Code: shzfcgw@16 Address: 6th Floor, South Building, Sihong County 
1 VBUS (4.4–5.25 V)
2 D−
3 D+
4 ID
5 grounding
The ID foot is only used in OTG function. The Mini USB interface is divided into mini-a, B and ab interfaces. If your system is only used as a slave, then use the B interface. The system controller will judge the level of the ID pin and determine what kind of device is inserted. If it is Gaoping, it is the B connector. At this time, the system will do slave mode. If the ID is low, it will be a interface. Then the system will use HNP dialogue protocol to decide which is the master and which is the slave
OTG is the abbreviation of on the go, that is, OTG technology is to realize the data transmission between devices without host. It is mainly used in the connection between different devices or mobile devices for data exchange. For example, the digital camera is directly connected to the printer, and through OTG technology, the USB port between two devices is connected to print out the photos taken immediately; the data in the digital camera can also be sent to the mobile hard disk of USB interface through OTG, so there is no need to carry expensive memory card or carry a portable computer for field operation.
Except for pin 4, other interface functions of Mini USB are the same as those of standard USB. The fourth needle becomes the ID, which is connected to the fifth needle on the mini-a, and can be suspended in the mini-b or connected to the fifth needle.
Title: Weather-specific outdoor two-color LED electronic display project competitive negotiation announcement Tender No.: shzfcg[2009] No. 9 Announcement Date: June 3, 2009 Deadline: June 10, 2009 Tendering Agency: Sihong County Meteorology Bureaus and cities: Jiangsu Province - Suqian City Content: The Sihong County Government Procurement Center was commissioned by the Sihong County Meteorological Bureau to conduct competitive negotiations on its weather-specific outdoor two-color LED electronic display project. Welcome qualified manufacturers to participate in the negotiations. .