Your question about Siemens S30810-Q2193-X200 SLC24

The "Subscriber Line Module CMI24" (SLC24) is an extension board for the following Hicom variants:

• Hicom 150 H Office Pro
• Hicom 300 E V3.0
• Hicom 300 E V3.1
• Hicom 300 H V1.0
• HiPath 4000 V1.0/V2.0

The SLC24 board used to connect up CMI base stations and to administer cordless subscribers. Existing SLC16 boards can be replaced with the SLC24 (in Hicom 150 H this is the SLC16n):

ADPCM = Adaptive Difference Pulse Code Modulation

A maximum of 24 UP0/E ports are available for connecting up base stations or telephones.

The X200 version (Hicom 300) has a 10-pin plug contact strip with a serial port with TLL levels for connecting the existing GPS board SLCSM (Subscriber Line CMI Synchronisation Module; S30807-Q6194-*). A second plug contact strip with a I2C bus, reset track and additional voltages is also provided for an SLCSS (Subscriber Line CMI Synchronisation Small; S30807-Q6714-*) that is yet to be developed. This can replace the SLCSM.

In contrast to the SLC16, SLC24 now provides an option for switching from 4 PCM highways (A trunk group) to a wideband connection (F trunk group) integrated on the backplane in V3.0 and higher with an additional 4 PCM highways. The system software assigns the highways. Only one trunk group at a time can be used for a single board. The use of wideband (2 x 4 PCM highways) means that a shelf can be used more efficiently when the traffic load on the SLC boards is high.