MT90220
TDM
Back-Plane
(ST-BUS)
ST-BUS
I/F DATA
Existing
Mitel T1/E1
Framers
Legacy Trunks
at 1.5 or 2 Mbps
UTOPIA
BUS
Data Lines
DSTo[0:7]
DSTi[0:7]
ST-BUS
I/F DATA
Existing
Mitel T1/E1
Framers
Legacy Trunks
at 1.5 or 2 Mbps
ATM LAYER
BUS
MT90220
DEVICE
ST-BUS
I/F DATA
Existing
Mitel T1/E1
Framers
Legacy Trunks
at 1.5 or 2 Mbps
4.096 MHz
8 kHz
TXCK[0-7]
RXCK[0-7]
TXSYNC[0-7]
RXSYNC[0-7]
ST-BUS
I/FCLOCKS
Dejittered TX CLK to Framers
(1.544 or 2.048 MHz)
Receive Clock
(1.544 or 2.048 MHz)
or 8 kHz References
MT9042
Clock Recovery and Dejitter
Functions
External Source
Figure 19 - PCM MODE 2 AND 4: Synchronous ST-BUS Mode
(Using ST-BUS/2.048 Mbps Backplane Compatible Framers)
80
MITEL [ MITEL NETWORKS CORPORATION ]
