The modem can be fasten by four screws M4 (for mobile application especially) or by the mounting rail DIN35 (stable applications). The flexile clamps mounted in the central holes are used for fastening on the DIN35 rail.
For the high-performance P model the modem is mounted on the back wall to ensure sufficient cooling of the modem. In this case 4x M4 screws are used for mounting purposes. There are no centre holes in the P version for attachment to a DIN rail.
is described in next table: