Interconnecting Repeaters, 4Installing the Repeater

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3-4Installing the Repeater

The default setting for the uplink switches is MDI-X(Media Dependent

Interface-Reversed, that is, a standard IN repeater port).

To convert Port 1 or Port 12 to an uplinkable OUT port, use a small, slotted screwdriver, or a similar tool, to set the switch to the MDI position (Figure 3- 4).

NOTE: IEEE specifications allow only one 100 Mb/s uplink connection per collision domain. Therefore, you cannot uplink to two 100 Mb/s repeaters. However, you can use both uplink ports for 10 Mb/s uplink connections.

13	14	15	16	17	18	19	20	21	22	23	24




						MDI-X
1	2	3	4	5	6	7	8	9	10	11	12

PWR A

PWR B

COL

MDI-X

MDI MDI-X

Uplinkable

Standard

MDI MDI-X"IN" Repeater Port

"OUT" Port

Figure 3-4.Uplink Switch (Default Setting)

Interconnecting Repeaters

(Default)

You can interconnect two repeaters, providing up to 48 ports in the same collision domain (segment). You can also connect the repeater to a single- speed repeater (10 Mb/s or 100 Mb/s).

To connect the repeater to another repeater, set the appropriate uplink switch as described in “Setting the Uplink Switches” in this chapter and connect the repeaters as shown in Figure 3-5.

NOTE: At 100 Mb/s, the maximum cable distance between two repeaters is 5 meters (16.4 feet) while still allowing a maximum distance of 100 meters (328 feet) for repeater to workstation/server connections. At 10 Mb/s, the distance between two repeaters can be up to 100 meters.