TXC-04222-AIOG Transwitch Corporation, TXC-04222-AIOG Datasheet - Page 51

• Manufacturer Part Number: TXC-04222-AIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-04222-AIOG

• Screening Level: Industrial
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

OPERATION
The following sections detail the operation of the TEMx28 Mapper.
BUS INTERFACE MODES
Each channel in the TEMx28 Mapper supports the following SONET/SDH bus modes of operation:
Drop Mode
In the drop mode of operation, TU/VTs from both the A and B buses are monitored, and a TU/VT is terminated
from either the A or B Drop bus to the receive output, without a return path in the transmit direction to the A and
B add buses.
Add Mode
In the add mode of operation, TU/VTs are monitored from the A or B Drop buses without a receive output, but
a path in the transmit direction for either A or B add buses is provided.
Single Unidirectional Ring Mode
In the single unidirectional ring mode of operation, a TU/VT is dropped from the A (or B) Drop bus, with the
return path the A (or B) Add bus. The other drop bus monitors the VT/TU. Timing for the TU/VT to be added to
the A (or B) Add bus is derived from either the A (or B) Drop bus, or from the A (or B) Add bus.
Multiplexer Mode
In the multiplexer mode of operation, a TU/VT is dropped from the A (or B) Drop bus, with the return path the B
(or A) Add bus. The other drop bus monitors the VT/TU. Timing for the TU/VT to be added to the A (or B) Add
bus is derived from either the A (or B) Drop bus, or from the A (or B) Add bus.
Dual Unidirectional Ring Mode
In the dual unidirectional ring mode of operation, a TU/VT is dropped from the A (or B) Drop bus, with the
return path both the A and B Add buses. The other drop bus monitors the VT/TU. Timing for the TU/VT to be
added to the A (or B) Add bus is derived from either the A (or B) Drop bus, or from the A (or B) Add bus.
Proprietary TranSwitch Corporation Information for use Solely by its Customers
- Drop Mode
- Add Mode
- Single Unidirectional Ring Mode
- Multiplexer Mode
- Dual Unidirectional Ring Mode
DATA SHEET
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TXC-04222-MB, Ed. 6
TXC-04222
TEMx28
June 2003