Red flash
(
RF
)
:
Port is receiving alarm indication signal (AIS) and ERR from the
sending device.
Yellow
(
Y
)
:
Link is disconnected due to the receiving of the error bits.
(
CUT
)
Yellow flash
(
YF
)
:
alarm due to remote device
(
RAL
)
but local port.
Off
:
Link is not in use
Note: If A,B,C and D all don’t be connected, four links are all red. If A link has been
connected, A link is green. Other link indicators are off. Then B link is
connected, B link is green automatically. Green means that normal status. And
so on.
A
、
B
、
C
、
D four E1 links are all balanced interface
:
RJ-45(120ohm balanced
,
1
、
2 pin output
,
5
、
6 pin input)
。
UTP Ethernet interface
:
Indicators:
LNK
:
on
,
Normal operation
;
off
,
no connection
。
100M
:
on
,
100Mbps
;
off
,
10Mbps
。
ACT
:
flash
,
receiving or sending
;
off
,
no action
。
FDX
:
on Full duplex
;
off
,
Half duplex
UTP: interface definition and connection see following text.
5