The signal contains the serial output data stream transmitted onto the network. Transmit Data Plus (TD+): The positive signal for the TD differential pair. VIEWED FROM TOP (opposite the retaining clip) Pinout for the RJ45 connector (suggested wire colors): 1 The transmit circuit of the network card is connected to the receive circuit of the switch and vice versa. To allow for a straight-through cable, the switch provides an internal transmit/receive crossover function. Pair refers to two wires, typically of a common color base, twisted around each other within the larger cable. If you need to repair a cable or provide connectors for UTP cable, wire straight through (MDI cable shown): Function When untwisting the wire pair for crimping, don't untwist the wire more than 1/2 inch, or about 1½ turns. Intervening cabling hardware, such as punch down blocks and wall plates, must match or exceed the category rating of the cable. For example, the wire connected to pin 1 at one end should connect to pin 1 at the other end. You should maintain the polarity of the wires from end to end. Pair refers to two wires, typically of a common color base, within the larger cable. The cable between the computer and the switch must be less than 100 meters long.Įach signal requires a wire pair (+ and - signal polarities). For 100BASE-T4, the cable must be category 3 or higher.For Fast Ethernet and Gigabit, the cable must be category 5 or 6. Connecting two stations without a switchįor 10 MBPS operation, refer to the 10 MBPS cabling specifications help file.Ĭables must comply with the IEEE 802.3 10BASE-T standard for two-pair, UTP cable.The type of cabling you must use depends on your adapter. RJ45 cabling is also known as twisted-pair Ethernet (TPE), unshielded twisted pair (UTP), and 10BASE-T cabling. Intel® Ethernet Adapters have a small, snap-in RJ45 connector.
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