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Model 2604 T1/E1 DACS Getting Started Guide
LED display
The front panel's LEDs (see figure 4) display the status of the four WAN ports, the Ethernet LAN port, power,
and the alarms. The front panel includes LEDs for:
•
POWER: Green if power is being applied. Flashing if one power supply fails.
•
CPU FAIL: Red if the CPU fails.
•
ALARM: If the DACS is operating normally, the LED will be off. If a major alarm has occurred, the yellow
LED will flash; if a minor alarm condition exists, the LED will be lit constantly.
•
SYSTEM: Flashes green if the DACS is operating normally.
•
ETHERNET: Green if Ethernet link status is normal.
•
EXT. CLOCK: Green if the DACS is being driven by the BITS clock. Off if the DACS is connected to a
(T1/E1) Network Clock or Internal Clock.
•
TEST MODE: Yellow if any of the T1/E1 ports are in local switching or loop- back mode, respectively. Off
if all ports are in normal operation.
•
WAN PORTS: Green indicates normal activity for each T1/E1 link. Red indicates an error on the port (for
example, loss of sync).
Hardware overview
Figure 4. DACS front panel LEDs
1 • Introduction
19
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