psf21911 ETC-unknow, psf21911 Datasheet - Page 108

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

Deactivating S/T-Interface Only
Deactivation of the S-interface only is initiated from the exchange by setting the
“UOA” bit = (0).
Figure 42 Deactivation of S/T Only
Semiconductor Group
INFO
INFO
INFO 0
INFO 0
S/T
4
3
SBCX
IOM -2
NT
DR
DC
DI
AI
AI
R
IEC-Q TE
SL3T
SL3T
SL3T act = 0 dea =1 uoa= 0
SN3T
SN3
act =1 dea =1 uoa =1
act
U-Reference Point
108
act
1 =
act =1 sai=1
0 =
dea
sai
1 =
0 =
uoa
Layer 1 Activation/Deactivation
0 =
IEC-Q
IOM -2
UAR
(DC)
UAI
AR
LT
AI
R
EPIC
ITD10209
PSB 21911
PSF 21911
R
11.97