User Manual

ArchitectureNortel Networks Confidential 3–23
S8000/S8002/S8006 BTS Reference Manual
T
1
T
2 3 4 5 6 7 8 9 10 27 28 29 30 31
OML/
RSL
T
1
T
2 3 4 5 6 7 8 3120 21 22 23 24
GSM
time
O&M/
TX
TT
T
O&M
/TX
CSWM
O&M bus GSM TIME bus
Internal PCMs
(up to 8)
Private PCMs
(up to 6)
OML/
RSL
T
1st DRX (*) 3rd DRX (*)
1st DRX (*) 4th DRX (*)
2nd DRX (*)
O&M
conversion
GSM time
conversion
SYNC
B
C
F
D
R
X
(*)
T
Key:
GTW
19
= traffic time slot
= unused time slot
0
0
SYN
SYN
Note: (*) DRX or e–DRX.
Figure 3–6 BCF/DRX Gateway (GTW)