ojp_charging_station_lir.xml

<?xml version="1.0" encoding="UTF-8"?>
<OJP xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns="http://www.siri.org.uk/siri" version="1.0"
    xmlns:ojp="http://www.vdv.de/ojp" xsi:schemaLocation="http://www.siri.org.uk/siri ../ojp-xsd-v1.0/OJP.xsd">
    <OJPRequest>
        <ServiceRequest>
            <RequestTimestamp>2022-11-30T10:00:00.000Z</RequestTimestamp>
            <RequestorRef>IRMA</RequestorRef>
            <ojp:OJPLocationInformationRequest>
                <RequestTimestamp>2022-11-30T10:00:00.000Z</RequestTimestamp>
                <MessageIdentifier>4711</MessageIdentifier>
                <ojp:InitialInput>
                    <LocationName>1-1-1-CH*SWIEE121754</LocationName>
                </ojp:InitialInput>
                <ojp:Restrictions>
                    <ojp:Type>poi</ojp:Type>
                    <ojp:PointOfInterestFilter>
                        <ojp:PointOfInterestCategory>
                            <ojp:OsmTag>
                                <ojp:Tag>amenity</ojp:Tag>
                                <ojp:Value>charging_station</ojp:Value>
                            </ojp:OsmTag>
                        </ojp:PointOfInterestCategory>
                    </ojp:PointOfInterestFilter>
                </ojp:Restrictions>
            </ojp:OJPLocationInformationRequest>
        </ServiceRequest>
    </OJPRequest>
</OJP>

Later Edit with Response
====

<?xml version="1.0" encoding="UTF-8"?>
<siri:OJP xmlns:siri="http://www.siri.org.uk/siri"
    xmlns:ojp="http://www.vdv.de/ojp" version="1.0">
    <siri:OJPResponse>
        <siri:ServiceDelivery>
            <siri:ResponseTimestamp>2022-11-30T10:22:42Z</siri:ResponseTimestamp>
            <siri:ProducerRef>EFAController10.5.17.10-OJP-EFA02-P</siri:ProducerRef>
            <siri:Status>true</siri:Status>
            <ojp:OJPLocationInformationDelivery>
                <siri:ResponseTimestamp>2022-11-30T10:22:42Z</siri:ResponseTimestamp>
                <siri:RequestMessageRef>4711</siri:RequestMessageRef>
                <siri:Status>true</siri:Status>
                <ojp:CalcTime>37</ojp:CalcTime>
                <ojp:Location>
                    <ojp:Location>
                        <ojp:PointOfInterest>
                            <ojp:PointOfInterestCode>coord:976290:6194663:MRCV:Ascona </ojp:PointOfInterestCode>
                            <ojp:PointOfInterestName>
                                <ojp:Text xml:lang="de">UNBEKANNT</ojp:Text>
                            </ojp:PointOfInterestName>
                            <ojp:PointOfInterestCategory>
                                <ojp:OsmTag>
                                    <ojp:Tag>amenity</ojp:Tag>
                                    <ojp:Value>charging_station</ojp:Value>
                                </ojp:OsmTag>
                            </ojp:PointOfInterestCategory>
                        </ojp:PointOfInterest>
                        <ojp:LocationName>
                            <ojp:Text xml:lang="de">Ascona</ojp:Text>
                        </ojp:LocationName>
                        <ojp:GeoPosition>
                            <siri:Longitude>8.77016</siri:Longitude>
                            <siri:Latitude>46.15571</siri:Latitude>
                        </ojp:GeoPosition>
                        <ojp:Attribute>
                            <ojp:Text>
                                <ojp:Text xml:lang="de">UNBEKANNT</ojp:Text>
                            </ojp:Text>
                            <ojp:Code>1-1-1-CH*SWIEE121754</ojp:Code>
                        </ojp:Attribute>
                        <ojp:Extension>
                            <ojp:LocationExtensionStructure>
                                <ojp:locationStatus>AVAILABLE</ojp:locationStatus>
                                <ojp:connectorTypes>
                                    <ojp:connectorType>
                                        <ojp:attribute>
                                            <ojp:key>CHARGER_CONNECTION_COUNT</ojp:key>
                                            <ojp:value>2</ojp:value>
                                        </ojp:attribute>
                                    </ojp:connectorType>
                                    <ojp:connectorType>
                                        <ojp:attribute>
                                            <ojp:key>CURRENT</ojp:key>
                                            <ojp:value>DC</ojp:value>
                                        </ojp:attribute>
                                        <ojp:attribute>
                                            <ojp:key>PLUG</ojp:key>
                                            <ojp:value>2_CCS_COMBO_CABLE_ATTACHED</ojp:value>
                                        </ojp:attribute>
                                    </ojp:connectorType>
                                    <ojp:connectorType>
                                        <ojp:attribute>
                                            <ojp:key>CURRENT</ojp:key>
                                            <ojp:value>DC</ojp:value>
                                        </ojp:attribute>
                                        <ojp:attribute>
                                            <ojp:key>PLUG</ojp:key>
                                            <ojp:value>4_CHADEMO</ojp:value>
                                        </ojp:attribute>
                                    </ojp:connectorType>
                                </ojp:connectorTypes>
                                <ojp:chargerConnections></ojp:chargerConnections>
                            </ojp:LocationExtensionStructure>
                        </ojp:Extension>
                    </ojp:Location>
                    <ojp:Complete>true</ojp:Complete>
                    <ojp:Probability>1</ojp:Probability>
                </ojp:Location>
            </ojp:OJPLocationInformationDelivery>
        </siri:ServiceDelivery>
    </siri:OJPResponse>
</siri:OJP>

@vasile I checked your Request, he seems to be OK. To which server do you send the Request? I tested on PROD (https://api.opentransportdata.swiss/ojp2020) and TEST (https://api.opentransportdata.swiss/ojp2020). Both worked for me.

Oh, indeed, was testing on https://ojp-beta.odpch.ch/ojp/ojp - thanks for troubleshooting @TO-mdv!