Determining Hardware Status
Determining Operating Status 5-3
During the power-on sequence for a SmartEdge router, the traffic cards are held in low-power mode until
the SmartEdge OS determines which slot has the active controller card. After the active controller card (and
the standby controller card, if it is installed) are initialized, the SmartEdge OS initializes the configured
traffic cards starting with the lowest-numbered slot. If a traffic card is not configured, no power is allocated
to it.
If the chassis power capacity is exceeded before all configured cards are initialized, the remaining cards are
left in low-power mode. You must manually unconfigure one of the initialized traffic cards (using the no
form of the card command in global configuration mode) before the SmartEdge OS can initialize these
power-denied cards. Because the power capacity check is always performed when traffic cards are
configured from the CLI (using the card command or the port command in global configuration mode),
no cards are denied power during the power-on sequence unless mismatched controller cards are installed.
To power off the system, remove all fuses for both power zones (primary and backup for each zone) in the
fuse panel.
Determining Hardware Status
You can determine the hardware status of an operating SmartEdge 1200 router using the system and card
LEDs and the results of the power-on diagnostics, as described in the following sections:
• Determine System Status with LEDs
• Determine Card Status with LEDs
• Display Results from Power-On Diagnostics
Determine System Status with LEDs
The status of the SmartEdge 1200 router is indicated by two sets of LEDs, which are located on the front
of the fan tray; see Figure 5-1. Table 5-1 lists the LEDs that indicate the fan tray and system power status.
Note If the active and standby controller versions are different, the SmartEdge OS allocates power
for both controller cards, initializes them, and issues a controller mismatch alarm.
The SmartEdge OS always reserves enough power during system configuration so that if the
system has only a single controller card installed, it is always possible to install a standby
controller card of the same type at a later time.
Table 5-1 SmartEdge 1200 Status LEDs
Label Activity Color Description
A1, B1 On Green The zone 1 –48 VDC power source (primary or backup) is present:
• A1—Primary source
• B1—Backup source
Off None The zone 1 –48 VDC power source (primary or backup) is absent.
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