Miranda NV8144, User Manual

Page: 108 / 140

98 Rev 2.2 • 27 Mar 10
4. Operation
Setting Redundant Crosspoint Switching
Setting Redundant Crosspoint Switching
The NV8280/NV8280-Plus and NV8576/NV8576-Plus of routers’ redundant crosspoint cardset
has nine function buttons, as shown in Figure 4-1.
Figure 4-1. Redundant Crosspoint Cardset Function Buttons
Each of the buttons is labeled. Labels 1–4 and 7–10 refer to crosspoint cards in slots 1–4 and 7–10.
The label ‘Standby’ refers to the redundant crosspoint itself. The buttons essentially select which
crosspoint card is in stand-by mode.
When the operator presses button 1, for instance, the crosspoint in slot 1 goes to stand-by mode and
the redundant crosspoint becomes active.
When the operator presses ‘Standby’, the redundant crosspoint goes to stand-by mode and any
other crosspoints return to active mode.
The brightness of the button indicates the button state:
• Off. The crosspoint is not available.
• Dim. The crosspoint is available and active (not in stand-by mode).
• Bright. The crosspoint is in stand-by mode.
How to Change Redundant Crosspoint Settings
1 Open the door. at the front of the router.
2 Press a crosspoint button to place the crosspoint in stand-by mode. The redundant crosspoint
becomes active.
3G ig
R edundant
X P T
S TA ND BY
P ATH
LIT E
ALA R M
ACTI VE
POWER
RED U ND A N T OPER ATI ON
1 7
2 8
3 9
4 10