OEM638 Technical Specifications
Appendix E
OEM6 Family Installation and Operation User Manual Rev 12
178
Table 39: J4101 Expansion Header Pin-Out and Signal Description (even numbered pins)
Pin
Signal Name
Signal Type
Signal
Direction
Polarity
Drive
Strength
(mA)
Description
2
IMUTXD /
RS232 /
RS422
Output
-
-
IMUTXD: RS232 Flow Control (±25 V
tolerant)
: RS422 Signaling (2 V
differential typical)
This is a standard RS232/RS422
communication port but is able to
generate a time event and timestamp
for reverse compatibility with the
SPAN-MPPC card stack.
4
IMURTS / IMUTXD-
RS232 /
RS422
Output
-
-
IMURTS: RS232 Flow Control (±25 V
tolerant)
IMURXD-: RS422 Signaling (2 V
differential typical)
6
IMURXD /
RS232 /
RS422
Input
-
-
IMURXD: RS232 Flow Control (±25 V
tolerant)
: RS422 Signaling (2 V
differential typical)
8
IMUCTS / IMURXD-
RS232 /
RS422
Input
-
-
IMUCTS: RS232 Flow Control (±25 V
tolerant)
IMURXD-: RS422 Signaling (2 V
differential typical)
10 GND
-
-
12
SYNCOUT
(EVENT_OUT7)
3.3V CMOS Output
Rising /
Falling
Edge
8
Synchronization Output. Identical to
EVENT_OUT signals but dedicated
for the use of an attached IMU.
14 PV / EVENT_OUT3
3.3V CMOS Output
Rising /
Falling
Edge
8
Event Output. Outputs a user-
specified timing signal. Can be
synchronized with PPS. Multiplexed
with Position Valid (PV)
16 EVENT_OUT4
3.3V CMOS Output
Rising /
Falling
Edge
8
Event Output. Outputs a user-
specified timing signal. Can be
synchronized with PPS.
18 EVENT_OUT5
3.3V CMOS Output
Rising /
Falling
Edge
8
Event Output. Outputs a user-
specified timing signal. Can be
synchronized with PPS.
20 EVENT_OUT6
3.3V CMOS Output
Rising /
Falling
Edge
8
Event Output. Outputs a user-
specified timing signal. Can be
synchronized with PPS
22 GND
-
-
24 Reserved