Siemens SLMS S30810-Q2117-X-07 Refurbished
Refurbished
Manufacturer Part Number: S30810-Q2117-X-07
The SLMS (Station Line Module Digital S0) board for Hicom 300/300E, offers eight S0 interfaces, each of which can accommodate up to eight digital terminals. 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). The SLMS supplies connected terminals with a feed voltage of -40 V.
The two B-channels can be switched through to any available time slots of the PCM highways on the system side. Of the possible data types of the D-channel (s, p, t), only s data (signaling) is transmitted. It is exchanged between the S0 interfaces and the control system.
Maximum line length
- 1000 m point-to-point mode (for one terminal)
- 500 m bus mode for concentrated terminals (maximum spacing of terminals is 50 m)
- 150 m bus mode for widely-distributed terminals
The -40 V direct current feed voltage for the terminals is supplied by the SLMS via the a and b-legs.
- Open-circuit voltage -40 V (-34 V to -42 V )
- Internal resistance Ri 2 x 10
- Maximum steady current 130 mA
The power available for a terminal depends on the type of cable used and the line length.
The front panel of the board contains one LED.
