An inlet device (100, 600) to be fitted to a communication cable, the device comprising: a housing (110, 210) having a first end (111, 211) and a second end (112, 212), wherein the housing includes a compressible portion (115, 215) at the second end of the housing and a securing zone (130, 230) adjacent to the first end of the housing to secure the inlet device in a close fitting port of a telecommunication enclosure, and - a compression member (150, 160); characterized in that - the securing zone includes a plurality of deformable locking elements (132, 232) which protrude from opposite sides of the housing (110, 210); - the compression member (150, 160) comprises a cable securing device, the cable securing device comprising an internal threaded portion and an external thread, wherein an external threaded portion of the housing (110, 210) cooperates with the internal threaded portion of the cable securing device to secure the cable securing device to the second end of the housing (110, 210); - a clamping nut is fitted to a second end of the cable securing device opposite the end which is connected to the housing (110, 210), wherein the clamping nut comprises an internal threaded portion that corresponds to the external thread of the cable securing device to secure the cable clamping nut to the cable securing device. a housing (110, 210) having a first end (111, 211) and a second end (112, 212), wherein the housing includes a compressible portion (115, 215) at the second end of the housing and a securing zone (130, 230) adjacent to the first end of the housing to secure the inlet device in a close fitting port of a telecommunication enclosure, and - a compression member (150, 160); - a compression member (150, 160); characterized in that - the securing zone includes a plurality of deformable locking elements (132, 232) which protrude from opposite sides of the housing (110, 210); - the compression member (150, 160) comprises a cable securing device, the cable securing device comprising an internal threaded portion and an external thread, - the securing zone includes a plurality of deformable locking elements (132, 232) which protrude from opposite sides of the housing (110, 210); - the compression member (150, 160) comprises a cable securing device, the cable securing device comprising an internal threaded portion and an external thread, wherein an external threaded portion of the housing (110, 210) cooperates with the internal threaded portion of the cable securing device to secure the cable securing device to the second end of the housing (110, 210); - a clamping nut is fitted to a second end of the cable securing device opposite the end which is connected to the housing (110, 210), wherein the clamping nut comprises an internal threaded portion that corresponds to the external thread of the cable securing device to secure the cable clamping nut to the cable securing device. - a clamping nut is fitted to a second end of the cable securing device opposite the end which is connected to the housing (110, 210), wherein the clamping nut comprises an internal threaded portion that corresponds to the external thread of the cable securing device to secure the cable clamping nut to the cable securing device.