Huawei NE05E Hardware Manual page 319

HUAWEI NE05E,NE08E
Hardware Guide
Item
Rx sensitivity (OMA) [dBm]
Overload power (AVG) [dBm]
Overload power (OMA) [dBm]
NOTE
3.5.14.4 50Gbps-QSFP28-SMF-1309nm(Tx)/1295nm(Rx)-40km-commercial
Table 3-337 50Gbps-QSFP28-SMF-1309nm(Tx)/1295nm(Rx)-40km-commercial
specifications
Item
Basic Information
Module name
Part Number
Model
Form factor
Application standard
Connector type
Optical fiber type
Bit error ratio (BER)
Issue 05 (2023-03-31)
The optical power calculation is based on the OMA value. If the module needs to reach the
nominal data, the board FEC function must be enabled.
The optical power read by the device is the average optical power, not the OMA optical
power.
1. To keep the optical module running stably for a long time, set the receive optical power
less than -4 dBm. (According to IEEE 802.3, if the receive optical power exceeds -2.3 dBm,
the optical module may be permanently damaged.)
2. Before connecting the optical module, you are advised to use the optical power meter to
measure the receive optical power (P). If P is less than -4 dBm, the optical module can be
directly connected. If P is greater than -4 dBm, add an appropriate attenuator at the receive
end to ensure that P is less than -4 dBm. Alternatively, add an appropriate attenuator (the
recommended value is no less than 10 dB) before the optical module is connected, and
then adjust the attenuator according to the actual situation to prevent the module from
being damaged.
3. If the pigtail loopback or short-distance connection of the optical module is used, the
attenuator must be added. It is recommended that the attenuator be greater than or equal
to 10 dB.
4. When this type of optical module is used to interconnect with a WDM device, the 1+1
protection switching duration on the client side of the WDM device is longer than 50 ms.
Copyright © Huawei Technologies Co., Ltd.
3 Hardware Description
Value
-13.5 dBm
-3 dBm
-
Value
50Gbps-QSFP28-SMF-1309nm(Tx)/
1295nm(Rx)-40km-commercial
02312EVY
QSFP28-50G-BIDI-40km-SM-1
QSFP28
IEEE 802.3bm-2015, 50GBASE-BR40
LC
SMF
<1x10E-12(after FEC)
<2x10E-4(before FEC)
311