GTS-820A Series Auto Tracking Total Station Models GTS-821A, GTS-822A, GTS-823A, GTS-825A Instruction Manual

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4 STANDARD MEASUREMENT MODE
l Control by interface for Topcon AP-L1A system, see Chapter 5 PROGRAM MODES -[EXT.LINK]
section.
l When using other wireless modem or optical remote controller, select to [None] for the protocol of
communication in Chapter 8 “PARAMETERS SETTING MODE” .