Hitachi, Network Router, models:

FM 8	Handling Instructions Manual
GR2000 Series	Configuration Commands Installation Manual
GR2000-B Series	Quick Start Manual
GR4000 Series	Installation Manual Quick Start Manual
GR4000-160E1	Installation Manual Quick Start Manual
HS140-010	Troubleshooting Manual
M 12SA (S)	Handling Instructions Manual
M 12SA2	Instruction Manual
M 12V2	Instruction Manual
M 8SA2	Technical Data And Service Manual Handling Instructions Manual
M 8V2	Handling Instructions Manual