Description of chassis rear side
19
Model 6476 User Guide
2 • Chassis specifications
Figure 3. Front view of chassis
Description of chassis rear side
The rear of the chassis is divided into two areas:
•
A set of eight 6U slots for ForeFront transition modules (see
figure 2
on page 18). These modules typically
contain cable connections for I/O interfaces such as T1/E1 trunks, optical fiber trunks, DSL lines, Ether-
net, etc.
•
A set of 3U slots allocated for the following uses (see
figure 4
on page 20):
-
Power input modules—either Patton Model 6112/HOR (DC) or Patton Model 6117/HOR (AC) (see
figure 5
on page 20). These modules provide power input to the power supplies in the front of the chassis
(see
figure 2
on page 18). Each input module provides input for two power supplies. The following con-
figurations are possible:
■
Two DC input modules (supports up to 3DC supplies)
■
Two AC input modules (supports up to 3 AC supplies)
■
One AC, one DC input module (supports up to 2 DC and 1 AC supplies or up to 1 DC and 2 AC
supplies)
System Slot
(Red card guides)
Switch Slot, Model 6511 only
(Yellow card guides)
Peripheral Slot
(Gray card guides)
Power Supply Slot
