Led Indications; Alarm Conditions - NEC Electra Elite IPK II System Hardware Manual

Document Revision 3
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5.9.4

LED Indications

Refer to Table 6-20 DTI-U40 ETU LED
LED
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
LED 9
5.9.5

Alarm Conditions

A brief description of each alarm condition is given below.
Alarm Indication Signal (AIS) Detection
On red when the system is receiving an Alarm Indication Signal
from an FT1 trunk.
Controlled Slip Event Detection (SLIP)
On red when the timing difference between a synchronous
receiving terminal and the received signal exceeds the
buffering ability of the terminal.
Cyclic Redundancy Check (CRC) Error Event Detection
On red when a CRC Error occurs.
Table 6-20 DTI-U40 ETU LED Indications
SW1-1 OFF
Link Indication
ON (Activated)
LSA Error Indication
ON (Error)
AIS Error Indication
ON (Error)
OOF Error Indication
ON (Error)
RAI Error Indication
ON (Error)
Loop Back Indication
ON (Loop Back
mode)
Self-Test Indication
ON (Testing)
Used CH Indication
ON (Using channel)
LIVE Indication
ON (Activated)
Electra Elite IPK II
Indications.
With SW1-1 ON
CH1 or CH9 or CH17 Indication
ON (Used)
CH2 or CH10 or CH18 Indication
ON (Used)
CH3 or CH11 or CH19 Indication
ON (Used)
CH4 or CH12 or CH20 Indication
ON (Used)
CH5 or CH13 or CH21 Indication
ON (Used)
CH6 or CH14 or CH22 Indication
ON (Used)
CH7 or CH15 or CH23 Indication
ON (Used)
CH8 or CH16 or CH24 Indication
ON (Used)
Installing ETUs (Circuit Cards)