Computone IntelliServer RAS 2000 PowerRack Hardware Manual page 14

Page 2-4
Figure 2-2 shows the RAS 2000 PowerRack back panel.
As you can see from the front view in Figure 2-1, the RAS 2000 PowerRack has
five slots. The RISC-860 Engine card comes installed in the bottom slot (slot 0)
and must remain there. This card contains the RISC CPU and memory and has
the 10-Base-T and the AUI connectors to attach to your local Ethernet network.
The RISC-860 also has two status indicator lights (LEDs) which indicate whether
the RAS 2000 is operating normally or has encountered an error condition. The
meaning of the lights is the same as on other IntelliServer products and is
explained in the RAS 2000 Software Supplement. Generally, the lights flash green
during normal operation, yellow during power-on self-test, and red to indicate
hardware faults or other serious error conditions.
The remaining four slots are for REX Serial Interface cards, The first REX is
already installed next to the RISC-866 card. Each REX card contains 16 asyn-
chronous serial ports. Additional REX cards may be installed in the remaining
slots to support up to 64 ports. On the right side of each REX card is an activity
light which indicates when ports on that card are actively in use.
On the rear panel of the RAS 2000 PowerRack you will find the line voltage
selector switch, the main power on/off switch and a place to connect the power
cord.
RAS 2000 PowerRack Hardware Guide
1 Power receptacle
2 Line voltage selection switch
3 On/Off switch
4 Product label
RAS 2000 Back Panel
Figure 2-2.