STMD2 (Station/Trunk Module Digital S0+SLMS2 Station Line Module Digital S0) board comprises the STMD and SLMS function on one single board. The STMD2 covers all features which are provided by the replaced modules. It contains eight trunks with S0 interfaces. Each S0 connection (4-wire-system) constitutes a basic access with two B-channels (64 kbits/s each) for speech/data and a D-channel (16 kbits/s)
- Moreover the new boards use SIPAC connector to the backplane.
- The front panel of the board contains 2 LEDs.