# Huawei optical modules This check will monitor the *Temperature*, *Voltage*, *Electrical current* and *Optical signal power* of optical modules (SFP). ---- ## Download - [huawei_entity_optical.mkp](/../../../-/raw/master/huawei_entity_optical.mkp "Download MKP package") ---- ## Check Info *huawei_entity_optical_temp* * *service*: this check creates the service *Temperature* for each SFP with the interface name as the item * *state*: **critical**/**warning** if outside the limits * *wato*: upper and lower limits * *perfdata*: * Temperature in °C Sample output ![sample output](/doc/sample_temperature.png?raw=true "sample [SHORT TITLE]") ---- ## Check Info *huawei_entity_optical_current* * *service*: this check creates the service *Current* for each SFP with the interface name as the item * *state*: **critical**/**warning** if outside the limits * *wato*: upper and lower limits * *perfdata*: * Electrical current in Ampere Sample output ![sample output](/doc/sample_current.png?raw=true "sample [SHORT TITLE]") ---- ## Check Info *huawei_entity_optical_dom* * *service*: this check creates the service *DOM* for each SFP with the interface name as the item * *state*: **critical**/**warning** if outside the limits * *wato*: lower and upper levels for RX/TX signal power and levels for deviation. * *perfdata*: * RX and TX signal power in dBm * RX and TX signal power deviation in dBm Deviation extension is based on [CheckMK PR #211](https://github.com/tribe29/checkmk/pull/211) *Add deviation power to cisco_temperature.dom* by [*agabellini*](https://github.com/agabellini) Sample output ![sample output](/doc/sample_dom.png?raw=true "sample [SHORT TITLE]") ---- ## Check Info *huawei_entity_optical_voltage* * *service*: this check creates the service *Voltage* for each SFP with the interface name as the item * *state*: **critical**/**warning** if outside the limits * *wato*: upper and lower limits * *perfdata*: * Voltage in Volt Sample output ![sample output](/doc/sample_voltage.png?raw=true "sample [SHORT TITLE]")