pef2045 Infineon Technologies Corporation, pef2045 Datasheet - Page 10

• Manufacturer Part Number: pef2045
• Description: Memory Time Switch Cmos Mtsc
• Manufacturer: Infineon Technologies Corporation

Figure 7
Basic Connections to a Digital Switching System
Figure 7 shows the PEx 2045 in its different applications in a digital switching system. It is used
here as the main device in the switching network (SN), as a group switch (GS) to connect different
digital or analog subscriber line modules (SLMA, SLMD) or digital interface units (DIU) with one
another and as the interface device for the digital interface units. The SLICs and SICOFIs (PEB
2060) are subscriber line drivers and codec-filter devices, respectively, for the analog line. SBC
(PEB 2080), IEC (PEB 2090), IBC (PEB 2095) and ICC (PEB 2070) are the layer-1 and layer-2
ISDN devices for the digital line. The peripheral board controller PBC (PEB 2050) multiplexes the
different lines in a subscriber line module to the 2- or 4-Mbit/s highways, which are input to the group
switch.
Semiconductor Group
PCM
Digital
Analog
2048 kbit/s
1544 kbit/s
IBC,IEC
IPAT
IPAT
SLIC
R
R
SBC,IBC
IPAT
SLIC
Line Trunk Group
SICOFI
Group Processor
Group Processor
Line Trunk Group
ACFA
ACFA
ICC
R
R
SICOFI
ACFA
Coordination Processor
ICC
MTSC
PBC
PBC
R
10
MTSC
PBC
PBC
2,4,8
Mbit/s
Group
Switch
MTSR
2,4,8
Mbit/s
Network
Switching
MTSR
ITC03655
PEB 2045
PEF 2045