Huawei OptiX OSN 3500 Hardware Description ISSUE 1.1 - part 9
Auxiliary Interface Board －AUX
Function
Provides various auxiliary interfaces
Provide +3.3 V power centralized backup function
for each board (secondary power 1:N protection).
Internal Use
89
Power Interface Board － PIU
Function
Access power
Lightning protection
Enhanced electro magnetic compatibility (EMC)
of the system by filtering and shielding the power
supply.
Provide two 50 W power interfaces for external
devices such as COA and HUB.
1+1 hot backup protection
Internal Use
90
Power Interface Board －PIU
Interface
Description
PWR
-48 V power access interface
50 W power output interface,
PS1/2
supplying power for COA or HUB
Internal Use
91
Booster Amplifier Board －BA2
Output optical power = 14 or 17 dBm
Tx
Rx
BA
Detects the input/output optical power
Internal Use
92
Booster Amplifier Board －BA2
BA2
Is used in TX
Fixed output optical power
Reports performance parameter
ALS function
Internal Use
93
Booster Amplifier Board －BA2
BA2
STAT
ACT
PROG
SRV
Five specifications
1 or 2 BA
modules,
OUT1
OUT2
LC connector
Output power of
Output power of
No.
port 1 (dbm)
port 2 (dbm)
1
14
Null
2
17
Null
3
14
14
4
17
17
IN1
IN2
5
14
17
BA2
Internal Use
94
Pre-amplifier Board －BPA
Gain = 22 dB
Tx
Rx
PA
Detects the input/output optical power
Internal Use
95
Pre-amplifier Board －BPA
BPA
STAT
ACT
PROG
SRV
2 specifications
Port 2: PA
OUT1
OUT2
module,
LC connector
Output power of
No.
Gain of port 2 (db)
port 1 (dbm)
1
14
22
Port 1: BA
2
17
22
module,
LC connector
IN1
IN2
BPA
Internal Use
96
Pre-amplifier Board －BPA
BPA
Improving the receiver sensitivity to -38 dBm
Be used for 1550.12 nm in RX
ALS function
Reports performance parameter
Internal Use
97
Case-based Optical Amplifier －COA
8
9
10
1
2
3
4
5
6
7
11
1. ID DIP switch
2. Running indicator
3. Alarm indicator
4. RS232-1
5. RS232-2
6. MONITOR-1
7. MONITOR-2
8. IN input optical port
9. OUT output optical port
10. Power switch
11. -48 V power interface
Internal Use
98
Case-based Optical Amplifier －COA
Installed externally
Two types
61COA
> Only one EDFA module
> Can work as BA (+14 dBm or +17dBm), PA (with the
receiver sensitivity of -38 dBm ) or LA.
62COA
> Raman amplifier with good noise performance
> used in the RX (with the receiver sensitivity of -39 dBm)
> Ultra long hop transmission for a single span (>170 km )
Internal Use
99