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User Manual
13
1 PWR1
RED
The
1
st
power alarm indicator
It is on when the 1
st
power is not linked or working abnormally. It is off
when the 1
st
power works normally.
2 PWR2
RED
The
2
nd
power alarm indicator
It is on when the 2
nd
power is not linked or working abnormally. It is off
when the 2
nd
power works normally.
3 ALM
RED
General
Alarm Indicator
It is stably on when there is a local alarm;
It is flash when there is remote alarm but no local alarm;
It is stably on when there are both local and remote alarm;
It is off when there is no local or remote alarm.
Note: It is not include the loss of unworking fiber port.
4
PWR
GREEN
Power Indicator. It is on when the power supply works normally.
5
LPR
RED
Remote device power off indicator
It is on when remote device power off after local and remote devices
works normally;
It is stably off on other conditions.
6
L WKA
GREEN
It is on when local optical port A is working.
7
R WKA
GREEN
It is on when remote optical port A is working.
8
L WKB
GREEN
It is on when local optical port B is working.
9
R WKB
GREEN
It is on when remote optical port B is working.
10
L LOSA
RED
It is on when the Rx signal of local optical port A is lost.
11
R LOSA
RED
It is on when the Rx signal of remote optical port A is lost.
12
L LOSB
RED
It is on when the Rx signal of local optical port B is lost.
13
R LOSB
RED
It is on when the Rx signal of remote optical port B is lost.
14
L LOF
RED
It is on when there is loss of frame alarm in local optical Rx signal.
15
R LOF
RED
It is on when there is loss of frame alarm in remote optical Rx signal.
16
L E-3
RED
It is on when the bit error rate of local optical Rx signal is beyond 1E-3.
17
R E-3
RED
It is on when the bit error rate of remote optical Rx signal is beyond 1E-3.
18
L E-6
YELLOW
It is on when the bit error rate of local optical Rx signal is beyond 1E-6.
19
R E-6
YELLOW
It is on when the bit error rate of remote optical Rx signal is beyond 1E-6.
20-23 LOS1-16
RED
1-4 E1 tributary Rx signal’s LOS alarm indicator.
It is on when there is LOS alarm of only local E1;
It is flash when there is LOS alarm of only remote E1;
It is on when there is LOS alarm of both local and remote E1;
It is off when there is no LOS alarm of local or remote E1.
24
LNK
GREEN
It is on when the Ethernet port links normally;
It is off when the Ethernet port doesn
’
t link or links abnormally.
25 100M
GREEN
It is on when the working speed of Ethernet port is 100M;
It is off when the working speed of Ethernet port is 10M.
26
ACT
GREEN
It is flash when there is data transmission currently;
It is off when there is no data transmission currently.
27
FDX
GREEN
It is on when the Ethernet port is working on full duplex mode;
It is off when the Ethernet port is working on half duplex mode;
It is flash when the Ethernet port is working on half duplex mode and
there is data collision.
2. Dip-switch of system controlling
The dip-switches are used to control optical port, E1 port and Ethernet port.
Table 3-16 RCMS 2811-120FE Front Panel Description 2-ADDR Dip-switch
NO.
Name
Bits
Description
Bit4 Bit3
Bit2
Bit1
Device Type
OFF OFF OFF OFF Remote
Device
OFF OFF OFF ON The
1
st
local Device
OFF OFF ON OFF The
2
nd
local Device
OFF OFF ON ON The
3
rd
local Device
OFF ON OFF OFF The
4
th
local Device
OFF ON OFF ON The
5
th
local Device
28 ADDR
Dip-switch
OFF ON ON OFF The
6
th
local Device
