db25 to rj45

adjust. There are two minor issues during the IBM R51 connection: ◆ Find other nearby wireless networks, which means we need to configure a security mechanism for our home router. For example, you can modify the login username and password, and encrypt WAP files to prevent other users from obtaining and using resources. ◆ Log on to the "192.168.0.1" interface for a long time. In 3-5 minutes, the wireless network connection experiences a signal decline. The signal drops to 11 Mbps, and the conne

convenient to adjust. There are two minor issues during the IBM R51 connection: ◆ Find other nearby wireless networks, which means we need to configure a security mechanism for our home router. For example, you can modify the login username and password, and encrypt WAP files to prevent other users from obtaining and using resources. ◆ Log on to the "192.168.0.1" interface for a long time. In 3-5 minutes, the wireless network connection experiences a signal decline. The signal drops to 11 Mbps,

. The uplink interface is the PON interface, which is connected to the interface board of the OLT device through a passive splitter. the downlink is through 1-32 RJ45 ports of Mbit/s or even Gbit/s, connect different data devices, such as vswitches, broadband routers, computers, IP phones, and set-top boxes, to achieve fast point-to-point deployment. 4. networking in the home Generally, most FTTH-to-user ONU devices provide at least four M

(config-r-mc) # Return end to global ModeStep 5 Router # copy running-config startup-config save ConfigurationNote that the auto-sync standard command does not synchronize boot variables.The configuration is as follows:Router (config) # redundancyRouter (config-r) # main-cpuRouter (config-r-mc) # auto-sync standardRouter (config-r-mc) # auto-sync bootvarRouter (config-r-mc) # endRouter # copy running-config startup-configNote that manual synchronization of a parameter causes the original defaul

module, server switching, 18 port GBIC) WS-X4424-GB-RJ45-Cisco Catalyst 4500 24 port 10/100/1000 module RJ-45) WS-X4448-GB-LX-Cisco Catalyst 4500 48 Port 1000BASE-LXSFP) WS-X4448-GB-RJ45-Cisco Catalyst 4500 48 Port 1000BASE-LXRJ-45) WS-X4448-GB-RJ45-Cisco Catalyst 4500 enhanced 48 Port 1000BASE-LXRJ-45) WS-X4548-GB-RJ45V-Cisco Catalyst 4500 PoE 802.3af 10/100/,

different electronic wiring rack ports, Through the smart jumper according to the requirements of the map of the information point port and switch/voice distribution rack port of the wiring rack port for proper connection, and finally through intelligent management software to the integrated cabling system intelligent management. 2.3.5 Tobacco Enterprise Information Point Planning scheme The production automation degree of the new tobacco enterprise is very high, whether it is sil

Routers play an important role in computer networks and serve as a bridge between computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access. Router configuration is not very easy for beginners. We will introduce general configurations and simple debugging of routers for your reference When configuring routers. This article uses cisco2501 as an example. Cisco2501 has an Ethernet port (AUI), a Console port (

Supplement: The wiring standards of EIA/TIA define the line sequence 568a and 568b of the two twisted pair wires.(1) 568a standard:Green white -- 1, green -- 2, orange white -- 3, blue -- 4, blue white -- 5, orange -- 6, brown white -- 7, brown -- 8(2) 568b standard:Orange white -- 1, orange -- 2, green white -- 3, blue -- 4, blue white -- 5, green -- 6, brown white -- 7, brown -- 8("Orange White" refers to light orange, or cables with orange dots or bars on the white line. The same applies to

through NAT technology, but its control functions need to be improved a lot. These software is very professional and generally not free, so large enterprises use more. 5. ADSL or residential broadband Internet access solutionBy using broadband cats and using dial-up software in the OS, you can use the pppoe protocol to dial up the Internet. To enable multiple machines to access the Internet, you can build a gateway through a router with the pppoe dialing function to guide other machines to acce

Whether it is a LAN, a metropolitan area network or a WAN, it is generally composed of network connection devices and transmission media such as NIC, hub, switch, router, cable, RJ45 connector, etc. Following the growing scale of the network, the number of devices that constitute the network in a rapid expansion of equipment, the variety is also constantly refurbished, may be the day-to-day maintenance of this series of equipment, without regular main

In this article, I will introduce intelligent physical layer management as a whole, and clarify related issues that are relevant to this emerging technology and have not yet been fully elaborated. What is intelligent cabling system Intelligent wiring System is the latest development of structured cabling document and management system. Although network administrators are accustomed to paper-based wiring records and subsequent simple spreadsheets, these methods do not real-time view network con

". The cable's two head presses in the RJ45 Crystal head separately according to the certain line order, this also is commonly said "the network cable". 1, what is T568A Standard and t568b standard? This is a series of two international standard lines developed by Super Five twisted pair to achieve performance index and unified wiring specification. (Can imagine: in the production of RJ45 Crystal Head, i

via the RJ45 cable to access the network, and the computer is set to "Automatically obtain IP address" and "Automatically obtain DNS address", which can be used as "broadband router" when "switch" use, Connect the network cable from the original computer to the LAN port on the router, and then make a network cable to connect the computer to the LAN port of the router (typically, the home broadband router has 4 LAN ports, 1 WAN ports), and the connect

does not power, so need external power. This excuse is mainly used for external hard drives. USB PLUS This is because the E-sata interface itself does not power, so there is the above figure of the USB plus interface, is the E-sata and USB2.0 combination, to solve the e-sata does not provide power supply defects, this excuse is common on the high-end motherboard. IEEE 1394 Interface IEEE 1394 Interface IEEE 1394, referred to as 1394. Originally developed by Apple, known as FireWi

Routers have a pivotal position in computer network, and are the bridge of computer network. It can not only connect different networks, but also choose the path of data transmission, and can block illegal access. The configuration of routers is not very easy for beginners. Now the general configuration of the router and simple debugging introduced to everyone, for friends in the configuration router reference, this article take Cisco2501 as an example. The Cisco2501 has an Ethernet port (AUI)

to the modem through a cable, it must be connected using a AYSNC-TO-DB25 or AYSNC-TO-DB9 adapter. There are more types of synchronous serial ports that can be supported in routers, such as Cisco Systems that can support 5 different types of interfaces, namely eia/tia-232 interface, eia/tia-449 interface, v.35 interface, x.21 Serial cable assembly and EIA-530 interface, corresponding to the adapter. It is important to note that, generally speaking, th

computers is the serial port, which now has at least two serial port COM1 and COM2. The serial port differs from the parallel port in that its data and control information is transmitted serially by one after another. In this way, although the speed is slower, but the transmission distance is longer than the parallel port, so long-distance communication should use a serial port. Typically, COM1 uses a 9-pin D-shaped connector, while COM2 some use an old-fashioned

. Height is 1U and 6U two kinds 2.1U Height Analyzer can monitor 240 ports 3. The standard 6U Height Analyzer monitors 480 ports and can monitor up to 1920 ports by adding expansion cards (6 slots in the analyzer) 4. Expansion cards for 6U height Analyzer each can monitor 240 ports Department Level Analyzer 1. Analyzer provides 128 monitoring ports through DB25 connectors and one RJ-45 connector 2. Provide 2 renewal outputs for controlling the e

have interfaces. Each Interface has its own name and number. The full name of an interface consists of its type mark and number, which starts from 0. For routers with fixed interfaces (such as Cisco 2500 series) or routers with modular interfaces (such as Cisco 4700 series), only one number is used in the full name of the interface, serial numbers are carried out based on the physical order of the routers. For example, Ethernet0 indicates 1st Ethernet interfaces and Serial1 indicates 2nd serial

from Flash 2. Preparations When designing a router product, the manufacturer reserves a Console. It is an important interface for vro configuration and the first step for password recovery: connect the terminal or PC with the Super Terminal software to the Console port of the vro by using the DB25 forwarding interface and crossover line. The terminal parameter settings are as follows: Speed: 9 600 bps; Data bit: 8; parity bit: none; stop bit: 1; tra