Troubleshooting

302401-D Rev 00 4-3

Figure 4-2. BayStack 450-12F LED Display Panel

Table 4-1. BayStack 450 Switch LED Descriptions

Label Type Color State Meaning
Pwr Power status Green On DC power is available to the switch’s intern al circuitry.
Off No AC power to switch or power supply failed.
Status System status Green On Self-test passed successfully and switch is operational.
Blinking A nonfatal error occurred during the self-test.
Off The switch failed the self- test.
RPSU RPSU status Green On The switch is connected to the HRPSU and can receive
power if needed.
Off The switch is not connected to the HRPSU or HRPSU is
not supplying power.
CAS Up Stack mode Off The switch is in standalone mode.
Green On The switch is connected to the

upstream

unit’ s Cascade A
In connector.
Amber On The Cascade A Out connector (CAS Up) f or this s w itch is
looped internally (wrapped to the secondary ring).
(continued)
BayStack 450-12F
BS45071A
= Dual color LED

450-12F Switch

BayStack
Status Dwn
Pwr Up 153
Cas
RPSU Base Activity
Link
F Dx
117926412810
kombk.book Page 3 Tuesday, June 29, 1999 3:25 PM