Huawei OptiX OSN 3500 Hardware Description ISSUE 1.1 - part 7
WDM Unit － MR2A/MR2C
MR2A
Interface
Type
Description
A01-A02
Access two channels of service signal added locally.
D01-D02
Drop two channels of service signal locally.
IN
LC
Receive two channels of multiplexed signal.
OUT
Send two channels of multiplexed signal.
Concatenation interface, through which multiple
MO/MI
MR2A/MR2C boards can be concatenated.
MR2A
Internal Use
67
WDM Unit － MR2A/MR2C
Drop1
Drop2
Drop1
Drop2
Drop1
Drop2
Out
MI
Out
MI
Out
MI
MR2A/
MR2A/
MR2A/
MR2C
MR2C
MR2C
In
MO
In
MO
In
MO
Add1
Add2
Add1
Add2
Add1
Add2
An OTM with two channels
An OTM with four channels
In
Out
Drop1
Add2
MR2A/
LWX
LWX
MR2C
Add1
Drop2
MI
MO
OADM station with two channels
Internal Use
68
WDM Unit
The common alarms of WDM unit
Alarm level
Color
Alarm name
Alarm reason
R_LOS
Receive loss of signal
IN_PWR_HIGH
Input power is too high
Critical
IN_PWR_LOW
Input power is too low
LSR_WILL_DIE
Laser will be out of work
OUT_PWR_HIGH
Output power is too high
Major
OUT_PWR_LOW
Output power is too low
LASER_SHUT
The laser is shut down
Minor
SPEED_OVER
The too high signal rate
Internal Use
69
WDM Unit
The common performance of WDM unit
Performance name
Performance meaning
LSOOPMAX
Maximum value of laser output optical power
LSOOPMIN
Minimum value of laser output optical power
LSOOPCUR
Current value of laser output optical power
LSIOPMAX
Maximum value of laser input optical power
LSIOPMIN
Minimum value of laser input optical power
LSIOPCUR
Current value of laser input optical power
LSTMPMAX
Maximum value of laser working temperature
LSTMPMIN
Minimum value of laser working temperature
LSTMPCUR
Current value of laser working temperature
Internal Use
70
1. SDH unit
2. PDH unit
3. Ethernet unit
4. ATM unit
5. MST unit
6. WDM unit
7. Cross-connect and timing unit
8. SCC unit
9. Auxiliary unit
Internal Use
71
Cross-connect Unit
SDH unit
PDH unit
Ethernet unit
Collect Alarm and
performance
High-order cross-connect
matrix (40G / 80G)
Low-order cross-connect
Multi-Granularity:
matrix (5G / 20G)
VC12/VC3/VC4/VC-4-xc
Flexible service cross-connect,
loopback, multicast and broadcast
Internal Use
72
Cross-Connection Unit
Cross-connect
Max
Low-order
High-order
Extension
and timing
access
Cross-connect
Cross-connect
sub-rack
board
capacity
capacity
capacity
capacity
GXCS
35G
5G
40G
NA
EXCS
58.75G
5G
63.75G
NA
UXCSA
58.75G
20G
78.75G
NA
UXCSB
60G
20G
80G
1.25G
XCE
1.25G
1.25G
NA
NA
Internal Use
73
Cross-connect Unit
10G line unit
10G line unit
Cross-
2.5G line unit
2.5G line unit
connect
Cross-
Standby
connect
PDH unit
PDH unit
Active
Ethernet unit
Ethernet unit
Internal Use
74
Timing Unit
GXCS
STAT
ACT
PROG
SRV
SYNC
Indicator
Color
Description
The clock works in synchronous status.
SYNC
The clock works in hold-over or free-run
mode.
GXCS
Internal Use
75
Timing Unit
2 Mbit/s, 2 MHz
75Ω, 120Ω
External clock
SCC
AUX
PDH unit
GXCS
GXCS
Legend
8K line clock
internal clock
external clock
38M system clock
8K framing clock
SDH unit
……
SDH unit
Internal Use
76
Timing Unit
SSM protocol
Non-synchronization status message (SSM) mode
Standard SSM mode
Extended SSM mode
Restoration
Restore switching
Non-restore switching
Internal Use
77