The present invention provides a patch panel labelling system for mounting to a telecommunications rack. The system comprises a connector module mounted to the rack and having a front face with a plurality of connectors. A labelling plate is mounted to the module for movement about a first pivot axis between a first position where the plate is substantially parallel to the front face of the module and a second position where the plate is pivoted away from the front face for providing access to the connectors. The plate can be further pivoted about a second pivot axis to selectively hide or reveal the labels provided thereon for identifying the connectors. The plate can be also be slid underneath the module for storage.