PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 26

• Manufacturer Part Number: PEF2054
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 13
Centralized Packet Handler with 3 Internal Highways
In some applications an additional collision resolution signal is required for the HDLC
controllers. This information can be demultiplexed from the PCM highways to a third line
for each packet handler internal highway (refer to figure 14).
Figure 14
Centralized Packet Handler with Internal Collision Line
The applications apply equally to centralized signaling as well as to data packet
handlers.
Semiconductor Group
A
B
A
PCM Highways
PCM Highways
C
D
B
E F G H
C
D
EPIC
EPIC
EPIC
R
R
R
Packet Handler Internal Highway
IDEC
26
C
R
Packet Handler Internal Highway
IDEC
R
IDEC
Centralized Packet Handler Unit
IDEC
Centralized Packet Handler Unit
R
C
R
S
IDEC
Collision
Indication
Line
R
ITS09542
ITS09541
PEB 2055
PEF 2055
S
Overview