# and the external one
if externalConnectorNames is None:
externalConnectorNames = list(self.connectors.keys())
externalConnectorNames.remove(self.internalConnector)
self.externalConnector = self._findAvailableConnector(externalConnectorNames)
# and the external one
if externalConnectorNames is None:
externalConnectorNames = list(self.connectors.keys())
externalConnectorNames.remove(self.internalConnector)
self.externalConnector = self._findAvailableConnector(externalConnectorNames)