A telecommunication device includes a main body to which a compartment is attached for receiving one or more components. A door is rotatable relative to the compartment between a closed position and a plurality of open positions. The door covers the compartment in the closed position. A connecting assembly attaches the door to the compartment, and includes a locking mechanism for preventing rotation of the door in a fixed position. The fixed position corresponds to an open position of the plurality of open positions. The locking mechanism self-locks in the fixed position when the door rotation reaches the fixed position.