GarrettCom Magnum 6K32T user manual Twisted Pair CAT-5e 1000BASE-T

Magnum 6K32 & 6K32T Managed Switch Installation and User Guide (12/05)

3.2.5Connecting Twisted Pair (CAT-5e or better, Unshielded or Shielded) The RJ-451000BASE-TX Gigabit ports of the Magnum 6K32T can be

connected via copper media with the following minimum specifications; 1000BASE-T, CAT-5e, or for better results, 100-ohm UTP shielded twisted pair (STP) balanced cable. The CAT-5e or the more effective 100-ohm UTP shielded twisted pair (STP) balanced cable is recommended when making 1000BASE-TX connections. In either case, the maximum distance for unshielded twisted pair cabling is 100 meters (328 ft).

Media	IEEE Standard	Connector
Twisted Pair (CAT-5e)	1000BASE-T	RJ-45

NOTE : It is recommended that high quality CAT-5e cables (which work for both 100 Mb and 1000Mb) be used whenever possible in order to provide flexibility in a mixed-speed network.

The following procedure describes how to connect a 1000BASE-T twisted pair segment to the RJ-45 port. The procedure is the same for both unshielded and shielded twisted pair cables.

1.1000BASE-T connections require that all four pairs or wires be connected. Insert either end of the cable with an RJ-45 plug into the RJ-45 connector of the port. Note that, even though the connector is shielded, either unshielded or shielded cables and wiring may be used.

2.Connect the other end of the cable to the corresponding device

3.Use the LINK LED to ensure proper connectivity by noting that the LED will be illuminated when the unit is powered and proper connection is established

3.2.6Power Budget Calculations for Magnum 6K32T PM’s with Fiber Media

Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate the power budget of different fiber media installations using Magnum products, the following equations should be used:

OPB (Optical Power Budget) = PT(min) - PR(min)

where PT = Transmitter Output Power, and PR = Receiver Sensitivity

Worst case OPB = OPB - 1dB(for LED aging) - 1dB(for insertion loss) Worst case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km]

where the “Cable Loss” for 62.5/125 and 50/125∝m (M.m) is 2.8 dB/km, and the “Cable Loss” for 100/140 (Multi-mode) is 3.3 dB/km,

and the “Cable Loss” for 9/125 (Single-mode) is 0.5 dB/km

and the “Cable Loss” for 9/125 (Single-mode) is 0.4 dB/km (LXSC25) and the “Cable Loss” for 9/125 (Single-mode) is 0.25 dB/km

(LXSC40)

and the “Cable Loss” for 9/125 (Single-mode) is 0.2 dB/km (LXSC70)

The following data has been collected from component manufacturer’s (Agilent’s and Lucent’) web sites and catalogs to provide guidance to network designers and installers.

www . GarrettCom . com

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