Cyan Z-Series Engineering and Planning Guide Release 5.0
Page 112 © 2013 Cyan, Inc. – All Rights Reserved. 700-0023-05-00 Rev. 1
Protection groups provide both revertive and non-revertive switching options. In revertive mode, the
equipment switches back to the working channel automatically after the working channel has recovered
from the failure that caused the switch and the provisioned time period to revert has elapsed. In
non-revertive mode, the equipment does not automatically switch from the protect channel to the working
channel after the working channel has recovered from the failure.
The figure below shows an example of UPSR/SNCP Path protection and Line protection 1+1 unidirectional
configurations.
OC-3/12/48
Line Protection 1+1 Unidirectional
OC-3/12/48
UPSR/SNCP
Path Protection
UPSR/SNCP
OC-3/12/48
UPSR/SNCP
OC-3/12/48
Line Protection 1+1 Unidirectional
Figure 58: MSE-1482 Path (UPSR or SNCP) and Line Protection
For detailed information on provisioning SONET/SDH protection groups using the MSE-1482 modules, see
the Planet Operate User Guide.
Trunk Interface
• Line format:
OTU2 – GFEC G.975, 10.709 Gbps
OTU2 – UFEC G.975.1 Appendix 7, 11.095 Gbps
Client Interfaces
• Line format:
SONET/SDH – OC-48/STM-16 (4x), 2488.32 Mbps
Ethernet – GE (2x), 1000.00 Mbps
SONET/SDH – OC-3/12 or STM-1/4 (8x), 155.52/622.08 Mbps