GR-87
GPS Module series
THE PRO NAME IN GPS
HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: 886-3-6687000 FAX: 886-3-6687111 E-mail:[email protected]
Website:www.holux.com.tw
8
3.3.6 TIMEMARK (default)/ RESET (option)
This pin default is provides 1 pulse per second output from the GR-87 engine
board, which is synchronized to within 1 microsecond of GPS time. The output
is a CMOS 3V positive level signal. Only upon a situation of tracking or
navigating will output once per second. This is not available in Trickle-Power
mode
。
The secondary option function is provides an active-low reset input to the
engine board. It causes the engine board to reset and start searching for
satellites. (This second function setting need contact factory
)。
4. Ordering Information
Model No.
Output Level
(CMOS 3V or
RS-232)
RF interface
output voltage
(V)
Back-up battery
(Rechargeable
Lithium)
Power
Saving
RF Connector
Type
GR-87-T0A
CMOS 3V
2.8
Y
Y
MMCX(180
∘
∘
∘
∘
)
GR-87-T0B
CMOS 3V
2.8
Y
Y
MMCX(90
∘
∘
∘
∘
)
GR-87-T0C
CMOS 3V
VCC_IN
Y
Y
MMCX(180
∘
∘
∘
∘
)
GR-87-T0D
CMOS 3V
VCC_IN
Y
Y
MMCX(90
∘
∘
∘
∘
)
