Cabletron Systems manual Connecting Power to the Device, 2H28-08R Rear View

Installing the 2H28-08R

3.4.3Connecting Power to the Device

NOTE

The 2H28-08R has two power supplies that have automatic voltage sensing, allowing connection to power sources ranging from 100–125 Vac, 2.0 A to 200–240 Vac, 1.0 A, 50/60 Hz.

To connect the 2H28-08R to the power sources, proceed as follows:

1.Plug both power cords into a separate grounded wall outlet. To take advantage of the load sharing and redundancy capabilities, each power cord must be plugged into a dedicated ac outlet. The POWER LED turns on (green) and the CPU LED turns on (green) briefly.

Primary

Redundant1960-62

Figure 3-5 2H28-08R Rear View

NOTE

It takes approximately one minute for the 2H28-08R to boot up.

2.Observe the LANVIEW LEDs. After a successful boot, the CPU LED turns on (green). If the PWR LED is not green after one minute and turns amber, there is no power redundancy. Check the power cord connections and the power source. If there are no problems with the power cord connections or power source and the PWR LED is still not green, contact the Cabletron Systems Global Call Center. Refer to Section 1.6 for details.

2H28-08R SmartSwitch 2208 User’s Guide 3-7