2 outline of gps receiver unit and function – Toshiba HHGP1 User Manual
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3.2 Outline of GPS Receiver Unit and Function
Figure 3.2.1 shows outline and functions of GPS receiver unit.
No. Device Indication
Functions
①
Yellow LED
5 V
Turns on when the power (5Vdc) is supplied.
②
Yellow LED
1PPS OUT
Blinks when 1PPS signals are output synchronously with UTC.
③
Red LED
ERROR
Turns on when the internal crystal oscillator stops.
④
DIP switches
DSW
Set the GPS receiver unit settings. During operation, these DIP
switches are covered to prevent erroneous operations.
⑤
Signal output ports
OPT.OUT
Outputs time signals. The optical fibre is connected here.
⑥
Power supply switch INPUT
Turns on or off the power of the GPS receiver unit.
⑦
Terminal block
__
The 48V dc power is applied and the earth cable is connected.
P: 48Vdc, N: 0Vdc, E: earth
⑧ Antenna terminal
ANT.IN
The antenna cable is connected.
Figure 3.2.1
Outline and Functions of GPS Receiver Unit
⑤
⑥
⑦
⑧
②
①
③
④
REAR VIEW
FRONT VIEW
48V