TXC-06412BROG Transwitch Corporation, TXC-06412BROG Datasheet - Page 113

• Manufacturer Part Number: TXC-06412BROG
• Manufacturer: Transwitch Corporation

Specifications of TXC-06412BROG

• Lead Free Status / Rohs Status: Compliant

1 1 3 o f 2 26
10.11.5 Example: STM-4/OC-12 Mode, 1:1 APS Protection
Protected Traffic
Figure 27
The setup is similar to the 1+1 case without the permanent bridge. This allows unprotected
extra traffic to be transported over the Protection line while there is no protection request
active.
When the APS FSM detects a failure of the Worker line the cross connect of the Protection
PHAST-12P performs a protection bridge connecting the transmit protected traffic to the
transmit Protection line. The Worker PHAST-12P performs the protection switch. It connects
the protected traffic to the Receive APS Port interface which transports the payload of the
received Protection line. The unprotected extra traffic is no longer available and will be
squelched.
W
W
y
RxApsPort
TxApsPort
shows an example of a 1:1 APS protection architecture in STM-4/OC-12 mode.
Figure 27. STM-4/OC-12, 1:1 APS
RxApsPort
TxApsPort
y
E
P
- Operation -
Protected Traffic
Switch
W
W
y
TxApsPort
RxApsPort
PRELIMINARY TXC-06412B-MB, Ed. 2
RxApsPort
TxApsPort
Squelch
PHAST-12P Device
E
P
Bridge
DATA SHEET
TXC-06412B
June 2005