Troubleshooting guide

Table Of Contents
345
Status LEDs
Power Supply Unit LEDs
Dual T1/E1 Framer Module
LED Status Meaning
Input OK Green ON Input is within parameters.
OFF Power supply is OFF
Output OK Green ON Output voltage is within normal operating range.
Figure 150: Dual T1/E1 Framer Module
Table 80: Controller Dual T1/E1 Framer LEDs
LED
Meaning
Alarm (bottom) Status (top)
ON (Red) No Layer 1.
ON (Yellow) Alarm indication from far end.
OFF No error
ON (Green) ISDN D-Channel established.
Flashing (Green) Layer 1 established. (ISDN only)
OFF No link.
On (Yellow) with
right side OFF
ON (Green) Blue alarm from far end.
OFF OFF Not programmed.