15454-PSM= Cisco Multiservice Transport Platform Protection Switch Module security appliances

Cisco Multiservice Transport Platform Protection Switch Module security appliances. This optical Protection Switch Module (PSM) for the Cisco ONS 15454 Multiservice Transport Platform (MSTP) provides protection against a fiber cut by optically splitting an optical signal over two diverse paths. The PSM allows three types of protection: single-channel or channel protection; amplified or non-amplified Multiplex Section Protection across the composite C- or L-band; and amplified or non-amplified Path Section Protection across the composite C- or L-band.