the rj-45 port on the management module and the rj 45 ports on the 10-port 100/1000 base-t interface module operate as mdi-x only and the correct cable type must be used. in general, for connections to other devices on the network use a straight-through cable.

    other wiring rules:

    1 all twisted-pair wires used for 10 mbps, and 100 mbps operation must be twisted through the entire length of the cable. the wiring sequence must conform to eia/tia 568-b (not usoc). see the pin assignment tables below the cable illustrations later in this appendix for a listing of the signals used on each pin.

    2 for 1000base-t connections, all four pairs of wires in the cable must be available for data transmission. see “note on 1000base-t cable requirements”for more information on 1000base-t cabling.

    3 for 10 mbps connections to the ports, you can use category 3, 4, or 5 100-ohm differential unshielded twisted-pair (utp) or shielded twistedpair (stp) cable, as supported by the ieee 802.3 10base-t standard.

    4 for 100 mbps connections to the ports, use category 5 100-ohm differential utp or stp cable only, as supported by the ieee 802.3u 100base-t standard.

    5 for 1000 mbps connections, category 5 or better 100-ohm differential utp or stp cable only, as supported by the ieee 802.3ab 1000base-t standard; category 5e or better is recommended.