MT90883 Datasheet, PDF (27/97 Pages) Zarlink Semiconductor Inc – TDM to Packet Processors

MT90880/1/2/3
Transparent data flow between TDM equipment
Data Sheet
TDM
equipment
constant bit rate
TDM link
MT9088x
TDM-Packet
conversion
interworking
function
packet network
MT9088x
TDM-Packet
conversion
interworking
function
TDM
equipment
constant bit rate
TDM link
Figure 9 - MT9088x Family Operation
The MT9088x family provides structured, synchronous TDM service, operating at the 64 Kbs channel (DS0) level.
The devices exhibit the following general service characteristics:
1. N × 64 Kbs trunking of any group of timeslots into a single “virtual channel connection” or "context"; these
timeslots need neither be contiguous nor from the same stream of data
2. Ability to add or delete timeslots from a context in order to support dynamic bandwidth utilization.
3. Provision of a cross-connect service (i.e. contexts coming from several MT9088x devices are capable of being
terminated by a single MT9088x device at the far end).
4. Ability to operate in "master mode" (supplying the timing to the TDM interface), or in "slave mode" (receiving the
timing from the TDM interface).
5. Local TDM interface, for connection of external resources, e.g. echo cancellers, modem termination, HDLC con-
trollers
6. Low latency connection, with end to end delay of less than 0.5 ms, depending on user configuration
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Zarlink Semiconductor Inc.