How to Notes
The information listed here is to assist Network Administrators in the color coding of Ethernet cables. Please be aware that modifying Ethernet cables improperly may cause loss of network connectivity. Use this information at your own risk, and ensure all connectors and cables are modified in accordance with TIA standards.
By looking at a T-568A UTP Ethernet straight-thru cable and an Ethernet crossover cable with a T-568B end, we see that the TX (transmitter) pins are connected to the corresponding RX (receiver) pins, plus to plus and minus to minus. You can also see that both the blue and brown wire pairs on pins 4, 5, 7, and 8 are not used in either standard. What you may not realize is that, these same pins 4, 5, 7, and 8 are not used or required in 100BASE-TX as well. So why bother using these wires, well for one thing its simply easier to make a connection with all the wires grouped together. Otherwise you’ll be spending time trying to fit those tiny little wires into each of the corresponding holes in the RJ-45 connector.
T-568A Straight-Through Ethernet Cable
The T-568A standard is supposed to be used in new network installations. Most off-the-shelf Ethernet cables are still of the T-568B standard; however, it makes absolutely no functional difference in which you choose.
T-568B Straight-Through Ethernet Cable
Both the T-568A and the T-568B standard Straight-Through cables are used most often as patch cords for your Ethernet connections. If you require a cable to connect two Ethernet devices directly together without a hub or when you connect two hubs together, you will need to use a Crossover cable instead.
RJ-45 Crossover Ethernet Cable
A good way of remembering how to wire a Crossover Ethernet cable is to wire one end using the T-568A standard and the other end using the T-568B standard. Another way of remembering the color coding is to simply switch the Green set of wires in place with the Orange set of wires. Specifically, switch the solid Green (G) with the solid Orange, and switch the green/white with the orange/white.
Pull the cable off the reel to the desired length and cut using wire cutters or scissors. If you are pulling cables through holes, it’s easier to attach the RJ-45 plugs after the cable is pulled. The total length of wire segments between a PC and a switch or between two PC’s cannot exceed 100 Meters (328 feet) for 100BASE-TX and 300 Meters for 10BASE-T.
Start on one end and strip the cable jacket off (about 1″) using a wire stripper or a knife. Be extra careful not to nick the wires, otherwise you will need to start over.
Spread, untwist the pairs, and arrange the wires in the order of the desired cable end. Flatten the end between your thumb and forefinger. Trim the ends of the wires so they are even with one another, leaving only 1/2″ in wire length. If it is longer than 1/2″ it will be out-of-spec and susceptible to crosstalk. Flatten and insure there are no spaces between wires.
Hold the RJ-45 plug with the clip facing down or away from you. Push the wires firmly into the plug. Inspect each wire is flat even at the front of the plug. Check the order of the wires. Double check again. Check that the jacket is fitted right against the stop of the plug. Carefully hold the wire and firmly crimp the RJ-45 with the crimp tool.
Check the color orientation, check that the crimped connection is not about to come apart, and check to see if the wires are flat against the front of the plug. If even one of these are incorrect, you will have to start over. Test the Ethernet cable.
- A straight-thru cable has identical ends.
- A crossover cable has different ends.
- A straight-thru is used as a patch cord in Ethernet connections.
- A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs.
- A crossover has one end with the Orange set of wires switched with the Green set.
- Odd numbered pins are always striped, even numbered pins are always solid colored.
- Looking at the RJ-45 with the clip facing away from you, Brown is always on the right, and pin 1 is on the left.
- No more than 1/2″ of the Ethernet cable should be untwisted otherwise it will be susceptible to crosstalk.
- Do not deform, do not bend, do not stretch, do not staple, do not run parallel with power cables, and do not run Ethernet cables near noise inducing components
This note applies to all XD’s Series DVR’s, NVR’s and Hybrids
hard drive will only record what the other was set for redundancy.
Note: In the picture, the number represents the step number in the walkthrough.
Step 1: Login to the DVR as administrator. Press “Enter” Key for the password prompt. The default username/password is “888888/888888”.
Step 2: When at the main menu, select “CONFIG“. Once in the “CONFIG” menu, select “RECORD”.
Step 3: First choose the channel(s) and weekday(s) you want to setup for redundancy. Once selected, make sure redundancy is highlighted which in turn is going to “copy” the recordings on those selected days and channels. Check all recording and redundancy settings once more than click on save.
Step 4: Back out to the main menu and select “SUPER USER“. Once in “SUPER USER” select “HDD MANAGEMENT”.
Step 5: Select the hard drive you want to use for redundancy (remember you need at least two hard drives for it to work) from the “HDD No.” drop down menu. Now select “Redundant” from the “Set to” drop down menu and click on “Execute”.
Step 6: After the procedure is done, you should now have one of your hard drives acting as a backup to the other. Remember that only the channels and date/time that you setup in the recording menu are going to be redundant.
Step 1: Open Internet Explorer from your desktop. Now click on Tools – Internet Options when Internet Explorer opens up. In your internet options window click the Security tab. (see below)
Step 3: Press OK and press OK on your internet options windows to be sure the configuration is saved. These steps will assure the download of the DVR’s ActiveX controls to enable login. If using Windows Vista as your operating system, be sure to look around the how-to page for more details on complete integration (and troubleshooting) of our software.
Step 4: Start out by launching Internet Explorer 8 from your desktop. Navigate towards the top of the page and locate an option called Tools.
Step 5: Once you click on Tools, click on Compatibility View Settings.
Step 6: Now simply type in the IP address/domain name of the DVR you are trying to connect to in the “Add This Website:” field then click “Add”.
Step 7: The IP address/domain name should now be added in the “Websites in Compatibility View” area. Proceed with closing out and restarting Internet Explorer. Please be sure you have exited out of all browser windows before restarting IE.
Step 8: in the address of the DVR as normal and you should see the web interface show as normal.
Step 9: You should also be able to turn Compatibility Mode on or off by clicking a small icon located at the end of your main address bar.
Step 10: Note: If you still cannot access your DVR, you may need to adjust one more setting. Click on Tools, then Internet Options and choose the Advanced tab. Look for an option listed as “Enable memory protection to help mitigate online attacks” (the option is listed towards the bottom). Make sure this option is disabled (un-checked). Once done, click “Apply” at the bottom then “Ok”. Restart Internet Explorer and you should now be able to access the DVRs web interface.