Focus FS-4 User Manual page 60

FireStore Functions
• USE EXT FS-4
Use this option when longer recording times are needed.
EXT FS-4
provide more disk storage for longer recording. One unit acts
as the master with the other as a slave: the master records to
itself until full and then continues recording on the slave unit.
Identifying Master/Slave Volumes During Record/Playback
When two FS-4s are in combined via USE EXT FS-4 and in either
Record or Playback mode, the volume on the Home screen will
display 1-xxx when the master unit is recording or playing back and 2-
xx if it is the slave.
52
permits the connecting of two FS-4 together to
USE