For test the V.35 cables and the Wic1T, i need to make a physical local loop (B3) with a V.35 cable. With the V.35FC cable there is no problems, looping this pins:
J2·T-->J2·S (RD- -->SD-)
the result is that the interface serial changes to looped status.
but the same procedure on the V.35MT cable don´t make the loop. ¿Any solution?Thanks! V.35 pinouts: http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00801f5d8e.shtml
If your trying to establish a loopback for the Data Terminal Equipment, you seem to have satisfied the RTS/CTS, DTR/DSR loopback. At the V.35 end of your cable, you need to loopback the SD (balanced pairs) to the RD (balanced pairs), as well as insure that you have a valid clock source. Usually the DCE provides clock on a balanced pair SCT, SCR. towards the DTE. But, when you build a loopback cable or adapter, you can obtain clock from the DTE via the SCTE pair and tie it to the SCT and SCR balanced pairs. A lot of the requirements depend upon the DTE and DCE equipment your testing. Hope this helps...
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This is a very specific problem that requires a site visit to solve, there are many factors that can effect the transmission of data over a run of that length. There are many solutions to this problem, they range from rerouting the cable run to avoid sources of interference to selecting another medium such as WLAN or IrLAN. The specific implementation of the solution must be custom tailored to the situation, sometimes the solution requires equipment that is readily available on a store shevle and sometimes the solution must be engineered to accommodate the needs.
I would recommend looking at the cable route to see if it runs past any major interference makers (copiers/large office machines, industrial equipment, power equipment). Then look at the possibility of an intermediate repeater/router (protected location and availability of power outlets). Another possibility is a wireless technology, the specific technology depends on many factors. If you need high speeds or large data transfer, perhaps an Ir (Infra-red) link or WiMAX (802.16) would be best. If general purpose network connectivity is needed, then a standard 802.11 a/g WLAN will suffice. I recommend that you contact a local networking firm for a detailed consultation. Another resource that might be a better fit for most small budgets will be to contact the local college/university that has a well defined IT program to solicit members of the Alumni in a networking degree field.
I would start by looking at the wiring in the house (from plug in the wall to the Demarcation line) make sure that is high quality wire and good connections. Then move to the Phone Co., get them to inspect the local loop wiring for bad connections/wire. Then move to FiOS (fiber optic technology), this will produce some amazing speeds, but you have to work with the phone co. or move to a faster technology such as Frame Relay, ATM, or ISDN, a burst asynchronous comm is your best bet.
You can use hub for that matter. Use RJ-45 Cables (Crossover) for connecting just two computers and connect each unit with the cable inserted from your cpu to the hub. To create an RJ45 local area network in Windows, you will need: Several computers running Windows (computers running two different versions of Windows can be part of the same network); Ethernet cards on a PCI or ISA port (with an RJ45 plug) or built into the motherboard. When applicable, make sure the diodes on the back of the network card light up when the computer is on and that a cable is plugged in.
Unless you have the proper cable crimper for making network cables, it would be faster and easier to just hop down to your local computer store, or even Walmart/Target and buy one.
If you do have the tool and want to make one from scratch, follow the steps listed below.
NOTE: Only two pairs of wires in the eight-pin RJ-45 connector are used to carry Ethernet signals. Both 10BASE-T and 100BASE-T use the same pins, a crossover cable made for one will also work with the other.
*Note: Even though pins 4,5,7, and 8 are not used, it is mandatory that they be present in the cable.
The combination for the pins is:
Connector 1: Pin1 to Connector 2: Pin3 Connector 1: Pin2 to Connector 2: Pin6 Connector 1: Pin3 to Connector 2: Pin1 Connector 1: Pin6 to Connector 2: Pin2
I think there is no way to do
that. You CAN do it, however, with a crossover cable. It looks the same
as a regular cable, but it's not. With the crossover cable, just
connect the two computers and give 'em two IP's in the same network.
Then enable file sharing and it should work. Sorry, I can't go into
much detail because I haven't done that in a looong time, but I think
that's about it. Hope it helps.
You could, but common practice is to make all the runs "home runs". Pick a closet or basement or some centrally located place and run all the cables to that spot. Then you can use a $10 block from Blowes Home Dumpo Maynards and create a distribution point.