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Nortel Secure Router 8012
Hardware Description 4 Boards
Issue 5.3 (6 April 2009) Nortel Networks Inc. 4-13
z
supports the active and standby switchover
z
supports hot swapping
z
supports the hot and cool backup
In addition, the RPU provides two Gigabit Ethernet (GE) ports. It supports the exclusion of
the optical function and the electrical function on the GE port; that is, you cannot use the
optical function and the electrical function on the GE port at the same time..
4.2.2 Front panel
Figure 4-7 shows the appearance of the panel. Table 4-5 describes the components.
Figure 4-7 Appearance of the RPU front panel
P
W
R
1
P
W
R
2
Table 4-5 Description of the components on the front panel of an RPU
Name Silkscreen Description
SYS The system running LED, including the fan,
power supply, and NPU warnings. Constant ON
means the CPU received a warning.
ALM (red)
NPU The NPU failure LED. Constant ON means the
NPU failed.
RUN The system running LED. Blinking means the
CPU works normally. Constant ON or OFF
means the CPU failed.
RPU (green)
MST The standby state LED. On means that the board
is the master RPU.