Nowadays, EURIDIS is the only international standard working with twisted pair cables for the remote reading of residential meters. The basic solution uses a field bus for communication. Nevertheless, because it may be difficult in some cases to install the two-wire EURIDIS cable, new AMR technologies have been designed over the last few years.

All Twisted Pair products from Altinex can either use any common CAT-5, CAT-5E or CAT6 cable. This makes the connection of AV products over an existing network easy and cost effective. Altinex twist pair products, MultiTasker based or Stand alone, have build in equalization that allows correction of a video signal for long cable runs. To ensure the best results and the longest distance possible Altinex offers no-skew twisted pair cable which does not require any equalization.

UTP cable will give the best quality video over long distances because it has less capacitance per unit length. However, STP may be a better choice in electrically noisy environments.

To connect 100vg hubs with twisted pair cable, you must use the uplink and downlink ports on the 100vg hubs. The hub that is connected to the server is called the "root level" hub. Hubs connected to the root level hub are called the "second tier" hubs, and hubs connected to the second tier hubs are called the "third tier" hubs, etc. To connect a root level hub to a second tier hub, you connect a cable from a downlink port on the root level hub to an uplink port on the second tier hub.

No. Since 100vg technology uses all 8 wires "straight-through" for high speed transmission, crossover cables cannot be used. Uplink and downlink ports exist on 100vg hubs to allow the hubs to be connected using "straight-through" cables.

Category 5 cable is preferred to be using with twisted-pair Ethernet in structured wiring environments. This will ensure correct operation of all ports at 10Mbps, 100Mbps or 1000Mbps. Note that for Gigabit Ethernet, all 4 pairs of the twisted-pair cable are used for transmission and receiving signals.

Yes, Use category 6 twisted pair wire, the range would be longer and have highly interference immunity.

M bps runs at Cat. 5 twisted-pair cable will cause some cross-talk signal. If the 3rd and 6th wire of RJ-45 connector are not belong at the same twisted pair. That will cause problem with longer distance as above 40 meters. User should check the wiring before install the 100Mbps network.

A standard CAT5 / CAT5e or CAT6 cable is made for computer network signal transmission where each twisted pair could be of different lengths. Using standard twisted pair cable could cause a color shift known as "skew." We recommend the Altinex No-skew Twisted Pair Cables, CB3150PV or CB5600PL, to minimize color shift (skew) on long cable runs.

Twisted-pair Ethernet (10BASE-T, 100BASE-T, or 1000BASE-T) uses an RJ-45 connector, which is an eight-pin modular connector. When looking at an RJ-45 wall jack (female), contact 1 is on the left and contact 8 is to the right. When looking at the RJ-45 connector on the end of a cable (male) with the tab on the bottom and the contacts on the top, contact 8 is on the left and contact 1 is to the right.

Yes, FORESIGHT Video Transceivers could use ordinary telephone wire to transmit and the range up to 300 meters. But the interference would occur easily, therefore we do not recommend this solution unless special environment requested.

A UTP cable consists of 4 pairs of twisted-pair cable, in which one pair of wiring is used to transmit data and one pair is used to receive data. To resist the disturbance, each pair send both "positive" and "negative" signals simultaneously, denoted as TX+ and TX-, as depicted below:

Use UTP (unshielded twisted pair) CAT 5 24 AWG (or over) to have the best transmission quality performance. To use STP (shielded twisted pair) cable, the shielded would cause internal signal interference, so the transmission range would be shorter ( 1.5KM--- >0.8KM) than UTP cable. Un-twisted wire not to be recommended, which easy have interference and range would be shorter.

Coaxial cabling transmission over 200 meters (RG59), the video signal would loss and have bad video image. Using FORESIGHT passive video transceiver range could up to 300 meters (Color), 600 meters (B/W), even 1KM, 2.4KM to work with active transceiver. To use FORESIGHT TDP414V/TTP414V 4 channel transceiver/cable hub, only need one single CAT 5 cable to transmit 4 video signals for cable saving and fast installation.

No. Only one of the inputs (Composite, S-Video, or Computer Component video) can be used at a time as the DA1930CT is a point-to-point transmitter, where all inputs are connected together internally to provide one output. No. Only one output port can be connected to a projector at a time, depending on what input is used with the transmitter. If VGA is transmitted, only a VGA connector can be used. If Composite video is transmitted, only Composite video can be used.

Yes, the auto-negotiation feature of the Gigabit switch and card allows each port of the device running at one of the following operation modes:

This question assumes that you are connected by an internal bus that you installed, attached directly to the NT (without using an RJ45 cable). The easiest way to test it is to buy a little cable tester (the author of this FAQ got one from Conrad Electronics in Germany for 29,- DM - just follow the simple instructions). Otherwise you have a bit more work. Switch line a1 and b1. If it doesn't work, put them back and switch a2 and b2. If it still doesn't work, try switching them both.

These models are designed to work with an external internet connetion, such as a an external ADSL or cable modem, and so are ideal for using with a Telstra Bigpond or Optus cable service, using the cable modem supplied by Bigpond/Optus. Please see the WAN FAQ. The DrayTek Vigor models which have a built-in ADSL modem are hardcoded to apply router, firewall and VPN to the ADSL interface (and ISDN interface, if included).

We will use cables similar to those running under the Cook Straight, which were installed in the early 1960's to bring hydro power from the South Island to the North. The bipole HVDC cables are waterproof, salt corrosion resistant, solid plastic polymer, insulated copper with high mechanical strength. The cables are about 125 millimetres in diameter and buried over one metre under the harbour floor.

There is no required length of a cable for an Amplifier to be active, a standard cable comes with the purchase. Please consider each model has different length of cable.