PEB 2091
PEF 2091
Programming
6.8.3
Activation with ACT-Bit Status Ignored by Exchange Side
The LT ignores the ACT-bit transmitted upstream from the NT if the LT activation has
been initiated with AR0 instead of AR. Because the activation with AR0 is performed with
the UOA-bit set to "0", initially only a partial activation is started. By setting UOA = 1 via
a MON2 message the S-interface is activated as well.
NT
LT
<––––– C/I DC (1111B) C/I DC
(1111B)
(1111B)
<––––– ; Initial state is "Deactivated"
–––––> ;
–––––> C/I DI
(1111B) C/I DI
C/I AR0
(0111B) C/I AR
<––––– C/I DC (1111B) C/I ARM
C/I UAI
(1101B)
(1000B)
(1001B)
(0111B)
<––––– ; Start activation
–––––> ;
<––––– C/I PU
–––––> ;
–––––> ;
MON8 PACE (80 BEH) <––––– ; Enable control of UOA-bit
MON2 UOA (2F FFH) <––––– ; and set UOA = 1
<––––– C/I AR
–––––> C/I AI
<––––– C/I AR
<––––– C/I AI
(1000B)
(1100B)
: Confirm that terminal is
; active
(1000B) C/I UAI
C/I AR
(1100B)
(1000B)
(1100B)
–––––> ; ACT-bit status ignored
<––––– ; Enable ACT-bit evaluation
–––––> ; Activation complete
(1100B) C/I AI
C/I AR0
(1101B)
(0111B)
<––––– : Disable ACT-bit evaluation
–––––> : ACT-bit status ignored
<––––– C/I AR
(1000B) C/I UAI
6.8.4
Complete Deactivation
Deactivating the U-interface can be initiated only by the exchange. A deactivation can
be started when the device is in the states "LINE ACTIVE", "PEND. TRANSPARENT" ,
"TRANSPARENT" or "S/T DEACTIVATED"
.
NT
LT
C/I DR
(0000B) <––––– ; Start deactivation
<––––– C/I DR
(0000B)
C/I DEAC (0001B) –––––> ; Deactivation proceeds
C/I DI
(1111B) –––––> ; Deactivation complete on
; LT
–––––> C/I DI
<––––– C/I DC
(1111B)
(1111B)
; Power down NT
; Deactivation complete on
; NT
Semiconductor Group
243
Data Sheet 01.99
INFINEON [ Infineon ]
