Service manual

2
Installation Tasks
2-7
Installation Tasks
Desktop Installation
To install and configure up to three Ethernet hubs on a desktop:
1. Remove the backing from the four adhesive rubber pads and
apply the pads to the underside of each hub. Ensure pads are
aligned with the scribed circles at each corner.
2. Position the first hub on a table or desktop. Stack the remaining
hubs on top of the first hub. Ensure the adhesive rubber pads on
the underside of a hub align with the recesses on the top of the
hub below.
3. To daisy-chain (connect) the hubs:
a. To connect the top and middle stacked hubs, connect an RJ-45
patch cable to port 24 of the top hub, then connect the cable to
port 12 of the middle hub.
b. To connect the bottom and middle stacked hubs, connect a
second RJ-45 patch cable to port 24 ofthemiddlehub,then
connect the cable to port 12 of the bottom hub.
c. As shown in use a pointed instrument to set the
medium-dependent interface (MDI) switch on the top and
middle hubs to MDI (in) (Figure 2-1, 1 and 2). Set the MDI
switch on the bottom hub to MDIX (out) (Figure 2-1, 3).
NOTE: To connect two hubs, follow step b and step c (middle and
bottom hub) instructions.
4. Connect a power cord to an AC power strip and the receptacle at
the rear of each hub. Use an extension cord if required.
5. Connectthe AC power stripto facility power. Powerfor each hub
switches on when the strip is connected to facility AC power.
6. Inspect the front panel of each hub. Ensure each green Power
light-emitting diode (LED) illuminates.