Topcon RC-4 - RC-4 R Panel Layout and Functions; RC-4 R LED Indicator Status

Nomenclature and Functions
9
Panel
LEDs
Key Function
Power switch ON/OFF of power of the RC-4R.
Turn-round key TS/IS/QS will be in turn-round motion.
Escape key
Cancels the emitting laser for turn-round motion. The TS/IS/QS will stop the
turn-round operation after continuing the motion for a while.
Channel key
Changes the transmission channels
(Emitting laser for turn-round motion / SS-Wireless)
LED Status Contents
Power
LED
On solid
The power of RC-4R is ON.
Flash
The battery remaining of RC-4R is low.
The battery should be recharged or replaced with a fully charged
battery.
Off
The power is OFF
Receiving
LED
On solid
RC-4R is in the middle of data reception.
Sending
LED
On solid
RC-4R is in the middle of data transmission.
Flash
RC-4R is in the middle of turn-round command transmission.
Channel key
Channel display /
Battery remaining display
Receiving LED
Sending LED
Power LED
Power switch
Turn-round key
Escape key