psf21911 ETC-unknow, psf21911 Datasheet - Page 106

• Manufacturer Part Number: psf21911
• Description: Isdn Echocancellation Circuit Terminal Applications Iec-q
• Manufacturer: ETC-unknow

Activation Initiated by TE with U Active
The TE initiates complete activation with INFO 1 leading to “SAI” = (1). Case 1 requires
the exchange side to acknowledge the TE-activation by sending C/I = “AR”, Case 2
activates completely without any LT-confirmation.
Figure 40 TE-Activation with U Active and Exchange Control (case 1)
Semiconductor Group
INFO
INFO
INFO 1
INFO 2
INFO 3
INFO 4
S/T
0
0
SBCX
IOM -2
NT
DC
AR
AR
DI
AI
AI
R
IEC-Q TE
SL3T
SL3T
SL3T act =1 dea =1 uoa =1
SN3
SN3
SN3
U-Reference Point
act = 0 dea =1 uoa =0
act
106
act =0 sai=0
act
0 =
act
SN3T
SL3T
0 =
1 =
dea
sai
sai
1 =
1 =
1 =
uoa
Layer 1 Activation/Deactivation
1 =
IEC-Q
IOM -2
UAR
UAI
UAI
AR
AR
LT
AI
R
EPIC
ITD10207
PSB 21911
PSF 21911
R
11.97