Novatel OEM6 Series User Manual page 155

Pin Signal Name
29 USERIO0
30
a
USERIO1
31 EVENT_IN2 /
USERIO2
32 MKO
(EVENT_OUT2)
33 nRESET_IN
34 GPAI0
35 _RESETOUT
36 GND
37 FR
38 ERROR/
EVENT_IN4
39 5V
40 EXT_LNA_PWR Power
a. On power up, if USERIO1 (pin 30) is pulled LOW or not connected, COM1 will be configured as RS-232 at
boot. If USERIO1 (pin30) is pulled high, then COM1 will be configured as RS-422 at boot (as described in
OEM6 Family Firmware Reference Manual
b. Software configurable. Default polarity is shown in table.
 This connector mates with Samtec SSW-120-01-G-D (or similar). The
standard mating height for the OEM638 card is 14 mm.
OEM6 Family Installation and Operation User Manual Rev 7
Signal
Signal Type Direction Polarity
3.3V CMOS IO
3.3V CMOS IO
3.3V CMOS IO
3.3V CMOS Output
3.3V CMOS Input
Analog Analog
3.3V CMOS Output/
Input
GND GND
3.3V CMOS Input
3.3V CMOS Output/
Input
Power Output
Input
(OM-20000129).
Drive
Strength
(mA)
2 General Purpose IO.
2 General Purpose IO.
2 General Purpose IO. Multiplexed with
EVENT_IN2 (software selectable pin
functions). Weak pull up internal to
OEM638
Rising 8 Mark Output. Outputs a user-
specified timing signal. Can be
b
Edge
synchronized with PPS
Active - Reset Input. Resets the OEM card
Low when low.
Minimum low time for reset is 1 us.
This pin is pulled up internally (32 kΩ-
100 kΩ).
-- - General Purpose Analog Input.
0 - 3.3 V Input; sampled by internal
12-bit ADC.
Active 2 Reset Output. Normally high, is driven
Low low shortly after the receiver is reset
and remains low for approximately
140 ms.
Weak pull up internal to OEM638
-- -
-- - Reserved. Do not use. 10 kohm pull
down resistor internal to OEM638
Active 2 Error indicator/Multiplexed with
High EVENT_IN4 (software selectable pin
functions)
-- - Onboard 5V supply. Here for legacy
support only. This supply should be
left floating unless used for reverse
compatibility with the OEMV-3.
-- - External LNA power supply input
option. An external supply between
5.5 V and
18 VDC may be connected here if the
internal 3.3 V and 5.0 V options are
not suitable. Powers the GNSS
antenna.
Description
155