Cisco, Multi-service Platforms, models:

IP DECT 6800 Series	User Manual
ONS 15305	Quick Installation Manual
ONS 15310-CL	Troubleshooting Manual
ONS 15310-MA	Installation Manual Troubleshooting Manual
ONS 15310-MA SDH	Procedure Manual
ONS 15327	User Documentation
ONS 15454 M6	Maintenance Manual Installation Manual
ONS 15600	Reference Manual