Procedure
- Log in to the switch through Telnet or console port to check the switch model.
Run the display device command to check the switch model.
<HUAWEI> display device S3328TP-EI's Device status: //Switch model Slot Sub Type Online Power Register Status Rol - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - 0 - 3328F Present PowerOn Registered Normal Master
- Log in to http://support.huawei.com/onlinetoolsweb/lpcmmt/en/index.html to view the optical module types supported by the switch. Different optical interfaces may support different types of optical modules. The selected optical modules must be supported by the optical interfaces.
- Check whether the optical module used on the switch is certified by Huawei switches.
For the Huawei-certified optical modules, Huawei has added Huawei logo and identifier and changed the vendor information in the product elabel and optical module information into HUAWEI. When an uncertified optical module is installed into a switch, the switch reports an alarm.
NOTE:
When certifying an optical module, Huawei switches comprehensively verify optical module functions to ensure the optical module quality. The functions include the installation and removal, transmit and receive power, signal transmission quality, basic information query, fault tolerance, compatibility, electro magnetic compatibility (EMC), and environmental performance. Non-certified optical modules may cause the following problems:
- The optical module cannot be installed in an optical interface because the optical module structure is non-standard.
The structure and size of some non-certified optical modules do not comply with the MSA agreement. After such an optical module is installed in an optical interface, the neighbor interface cannot have an optical module installed because the non-certified optical module has a non-standard size.
- An inherent defect causes an abnormality of the device's data bus.
Some non-certified optical modules have defects in data bus designs. Using such an optical module on a device causes abnormality of the connected data bus on the device. As a result, data on the abnormal bus cannot be read.
- Improper edge connector size damages electronic devices of optical interfaces.
The edge connectors of some non-certified optical modules have a non-standard size, causing the interface to be short-circuited and damaging the electronic components of the interface.
- Non-standard temperature monitoring triggers incorrect alarms.
The temperature monitoring systems of some non-certified optical modules do not comply with industry specifications, so a high temperature is obtained. As a result, the system incorrectly reports a temperature alarm.
- The optical module register is set incorrectly. Consequently, parameters and diagnostic information cannot be read or incorrectly read.
The A0 registers of some non-certified optical modules are set incorrectly. As a result, parameters and diagnostic information cannot be read or incorrectly read by the data bus.
- Some non-certified optical modules are not designed in compliance with EMC standards and have low anti-interference capability. Additionally, they bring electromagnetic interference to nearby devices.
The working temperature range of the optical module does not meet requirements, reducing the optical power at a high temperature. Subsequently, services are interrupted.
In this situation, contact Huawei engineers.
Figure 1 shows the optical module types.
- The optical module cannot be installed in an optical interface because the optical module structure is non-standard.
