PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 131

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

4.3.6
The S-interface is activated from the exchange with the command "AR". Bit "UOA"
changes to (1) requesting S-interface activation.
Figure 58
Semiconductor Group
INFO
INFO
INFO 2
INFO 3
INFO 4
S/T
Activation Initiated by LT with U Active
0
0
LT Initiated Activation with U-Interface Active
SBCX
IOM -2
NT
DC
AR
AR
DI
AI
AI
R
IEC-Q
SL3T
SL3T
SL3T act =1 dea =1 uoa =1
SN3
SN3 act = 0 sai=1
SN3
act = 0 dea =1 uoa = 0
act
U-Reference Point
131
0 =
act = 0 sai= 0
act
SN3T
SL3T
1 =
dea
1 =
sai
1 =
uoa
1 =
IEC-Q
Operational Description
IOM -2
DC/UAR
UAI
UAI
AR
AR
LT
AI
R
Data Sheet 01.99
EPIC
ITD04246
PEB 2091
PEF 2091
R