According to the "People's Republic of China Government Procurement Law", "People's Republic of China Bidding and Tendering Law" and "Interim Measures for Yinchuan Municipal Government Procurement Management", the Yinchuan Municipal Government Procurement Center follows the centralized procurement plan issued by the Yongning County Government Procurement Office. The purchaser entrusts the specific organization to implement the procurement of the full-color electronic display screen and the single-color door display of the Yongning County Public Security Bureau. In order to ensure that the required targets are of advanced technology, reliable quality, reasonable price, prompt delivery and considerate service, it is decided to purchase the project in a competitive negotiation manner. The specific procurement matters are as follows:
First, the procurement content and delivery time, location:
Procurement target name: full color electronic display and single primary color door display
Purchase No.: Yin Cai Zhongyong (Competition) [2009] No. 35
Delivery time: 10 days after the signing of the contract (including holidays)
Place of delivery: Yongning County Public Security Bureau
Second, the bid conditions:
(1) The conditions for bidders to participate in government procurement activities:
1. Ability to independently assume civil liability;
2. Have a good business reputation and a sound financial accounting system;
3. Have the necessary equipment and professional technical ability to perform the contract;
4. Have a good record of paying taxes and social security funds according to law;
5. In the three years prior to participating in government procurement activities, there were no major illegal records in business activities;
6. Other conditions stipulated by laws and administrative regulations.
(2) The qualification documents that the bidder should provide:
1. A copy of the business license that has passed the annual inspection (original and a copy of the official seal), a copy of the tax and organization code certificate (with a copy of the official seal);
2. If the legal representative is present in person, the original identity certificate of the legal representative shall be provided at the time of submitting the "bidding documents";
If the legal representative fails to attend the meeting in person, he shall provide the power of attorney (original) of the legal representative. The power of attorney shall be signed by the legal representative and affixed with the official seal of the unit. The original copy of the identity card of the trustee and the official seal shall be attached. Pieces.
3. Production and sales licenses for related products (copy of official seal) and test report (copy of official seal), certificate of authentication and related certificates (copy of official seal), quality certificate (with official seal) Copy)
4. Provide a copy of the official compulsory certificate stamped with the official seal (the equipment needs to have mandatory requirements);
5. Two or more legal persons or other organizations may form a consortium, jointly bid as a bidder, and provide a joint bidding agreement to the tenderee (the original of the tender documents, a copy of the official seal attached to the copy; The joint bid agreement should clarify the responsibilities and obligations of both parties);
6. Proof of taxation and independent innovation according to law, similar performance [three years of "Notice of Completion" or "Contract"] (copy of official seal);
7. Bidder's address, full name of the unit, telephone, fax, bank account and account number, contact person;
8. Other relevant qualification certificates.
Note: The original license must be provided for the business license. If the bidder cannot provide the original, it must provide a valid certificate (original) issued by the local industrial and commercial department or a copy of the “Notarized Certificate†(original) issued by the local notary department.
3. Time and place for initial review of qualifications and request for negotiation documents:
From 9:00 am on August 5, 2009 to 6:00 pm on August 17, 2009, the preliminary examination of qualifications will be held at the Yinchuan Municipal Government Procurement Center, and the negotiation documents can be obtained after passing the qualification examination.
4. The foreign bidding supplier will inform the center of the bidding supplier's name, contact person, contact number and the project to be submitted by E-mail. The tenderer will send the Negotiation Document to the bidding supplier by e-mail. Center E-mail:); Local bidding suppliers must bring U disk to our central comprehensive department to register
Contact for free cable negotiation documents: Yang Lishuang; contact number
V. Time for bidding and answering: 3 pm, August 13, 2009 (Thursday)
Bid and answer location: Meeting room of Yinchuan Municipal Government Procurement Center
6. Deadline for bidding:
Before 9:00 am on Tuesday, August 18, 2009 (the tenderer began accepting the Bid Documents from 8:00 am), overdue receipts or non-compliant and unsealed tender documents will not be accepted.
Place of bid: Meeting room of Yinchuan Municipal Government Procurement Center
Seven, the opening time: August 18, 2009 (Tuesday) at 9 am
Bid Opening Place: Meeting Room of Yinchuan Municipal Government Procurement Center
Contact Unit: Yinchuan Municipal Government Procurement Center (No. 4, Yuhuangge North Street, northwest corner of Yuhuangge)
Contact number 6017107
Contact: Yang Lishuang Chen Shugong Li Haixia
8. Questioning, Complaint, Accepting Contact Number and Contact Person:
Yongning County Government Procurement Office Yong Zhengdong
Yinchuan Municipal Government Procurement Center Shi Guangxing
Yinchuan Municipal Government Procurement Center
August 5, 2009
What is a wireless AC controller? What does it do?
Wireless AC controller is a kind of network device, such as the AC100/150 of Fengrunda, which can be used to centrally control and manage wireless aps. It is the core of a wireless network and is responsible for managing all wireless aps in the wireless network. AP management includes: delivering configuration, modifying related configuration parameters, RF intelligent management, and access security control.
Why use a wireless controller, and what exactly does it do?
In fact, the role of the wireless controller is to play a gateway function between the WLAN and the Internet (on the router), and the data from different access points are aggregated and accessed to the Internet. The role of an access point (AP) is to complete wireless access, and it can control user access through network flags.
The role of wireless controllers
1, Flexible networking mode and excellent scalability
The AP does not need to be directly connected to the AC, so that the AP can be deployed in any place that needs to be covered through the network, such as you deploy an AP in each employee's home, and then connect to the wireless controller inside the enterprise through the VPN, you can expand the wireless network of the enterprise to the family of each enterprise member.
2, intelligent RF management functions, automatic deployment and fault recovery
Through the dedicated RF management module, we can initially estimate the AP deployment according to the user's architectural design drawing, and can calculate the average bandwidth of the wireless terminal, the coverage between AP and AP in the actual debugging process.
3. Centralized network management
All the configuration of the wireless network can be completed by configuring the wireless controller. For example, enable, manage, and maintain all AP devices and mobile terminals, including all functions such as radio wave spectrum, wireless security, access authentication, mobile roaming, and access users.
4, powerful roaming function support
The wireless controller uses AP as the boundary combined with fast RF management system, which greatly reduces the connection time between wireless client and AP, and thus realizes the function of fast roaming.
5. Load balancing
AP and wireless controller systems can distribute wireless users or terminals to nearby aps within the coverage area of an AP, ensuring the number of each wireless terminal or the sum of AP bandwidth transmission or the upper limit of each wireless terminal bandwidth.
6, wireless terminal positioning, rapid fault location and intrusion detection
Wireless controllers can track and locate the location of wireless terminals, such as wirelessly connected computers, PDAs and Wi-Fi mobile phones.
7, powerful access and security policy control
At present, the wireless system supports authentication of 802.1, WEB authentication, MAC, SSID, VPN, etc., and supports various encryption modes such as WEP, WPA, WPA-PSK, WPA2, etc., and all configurations can be configured globally through the wireless controller.
8, Qos support
AP and wireless switching systems can limit the maximum bandwidth of a user's wireless connection within each user's privileges. For different IP services, the system can also define different QoS queues through the wireless switch module. For example, for wireless voice applications, SIP and RTP protocols can be set in the high queue, while common applications such as http and ftp can be set in the low queue.
The wireless controller AC is more advanced than the AP, plays the role of manager in the wireless network, and the wireless controller AC also acts as a client to complete a series of functions in the wired network (such as authentication, authentication, etc.). However, wireless controller AC is not a WLAN device specified in the 802.11 protocol family, but as a supplement to the protocol in specific applications, and its price far exceeds that of ordinary access point (AP) devices.
In small-scale wireless networks that use only a few aps, it is not economical to use expensive wireless controller AC equipment. However, if the number of wireless aps is large, more than 20 can be used AC controller.
Ac Controller,Gigabit Wlan Controller,Enterprise Ac Gateway,Wireless Ap Controller
Shenzhen MovingComm Technology Co., Ltd. , https://www.szmovingcomm.com