Datacom DM991C, Product Manual

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Product Manual - DM991 Series V Family - 204.4092.08 75
17. PANEL LEDS
17.1. DM991S/SE Modems Front Panel LEDs
Led Status Behaviour
ALIM Equipment on Turned on
Recived data Turned on
Receiving all 1 or all 0 Turned off
Transmited data Turned on
Transmiting all 1 or all 0 Turned off
No carrier Turned off
AIS reception Blinks twice a second (most of the time turned off)
No frame synch Blinks once a second (most of the time turned off)
Remote Alarm Indication Blinks once a second (most of the time on)
No CAS synch * Blinks once a second (most of the time on)
No CRC4 synch * Blinks twice a second (most of the time on)
Frame, CAS and CRC4
synch
Turned on
106/E1
◊
Ready to transmit Follows CT106
Link Ethernet Turned on
Activity on the Interface Blinks
No carrier Turned off
Handshake Blinks once a second (most of the time turned off)
Training
On time equal to off time, blinking once every second
(1Hz)
TDM not aligned *
On time equal to off time, blinking once every second
(1Hz)
LOSWD or LOSWF
On time equal to off time, blinking four times every
second (4Hz)
CRC error or no CAS synch Blinks once a second (most of the time on)
In synch Turned on
Configured for internal clock Turned on
Configured for regenerated
clock which is ok
Turned off
No test active Turned off
Any test active Turned on
BERT error detected in the
G.shdsl interface On time equal to off time, blinking four times every
second (4Hz)
TEST
109
(Ø)
DSL
ETH
⊥
104
₪
103
₪
106 E1
†
R. INT
Table 22. LEDs Meaning - DM991S/SE
* When enabled, otherwise ignored.
₪ When interface V.35 is disabled, these LEDs will represent data from interface E1 or data from the
Ethernet interface (only in DM991SE, if interface E1 is disabled).