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3-4
Installing the Repeater
Writer:
Chris Seiter
Project:
Installing the Repeater
Comments:
185812-002/707113-001
File Name:
10100_3.DOC
Last Saved On:
3/14/96 11:27 AM
The default setting for the uplink switches is MDI-X (Media Dependent
Interface-Reversed, that is, 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.
MDI-X
MDI-X
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
23
12
24
ALTERNATING
100 COL
10 COL
DISPLAY MODE
100 MBPS
PWR A
10 MBPS
PWR B
MDI
10 ONLY 10/100
MDI
MDI-X
MDI-X
MDI
MDI-X
Standard
"IN" Repeater Port
(Default)
Uplinkable
"OUT" Port
Figure 3-4.
Uplink Switches (Default Setting)
If you need to connect a dual-speed (10/100 Mb/s) device to the repeater and
the device must operate at 10 Mb/s, set the Port 1 speed selection switch to 10
ONLY. This forces the port to function as a 10Base-T port. When the speed
selection switch is set to its default position (10/100), Port 1 automatically
detects the incoming wire speed like the other ports.
