DMU380SA Series
User’s Manual
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Doc# 7430-0026 Rev. 01
Page 4
2
Connections
Connections
2.1
The DMU380SA Series has a micro-DB9 female connector as shown in Figure 1. The
signals are as shown in Table 3.
Figure 1.
9 Pin Micro-DB Connector Female Pinout
Table 3.
Connector Pin Assignments
Pin
Signal
1
Power Input
2
Power Return
3
+RX RS-232 / RS-422
4
-RX RS-422
5
+TX RS-232 / RS-422
6
-TX RS-422
7
Mode Select (RS-232 Short / RS-422 Open)
8
GPS 1PPS Output (INS380SA) / Sync Pulse Input (IMU, VG and AHRS380SA)
9
Signal Return
I/O Cable
2.2
The user must provide a shielded cable with the shield connected to the I/O connector
shell in order to provide improved EMI protection. The cable sent with the unit is
intended to provide the user with the ability to test the unit right out of the box, and will
not provide adequate shielding for all environments.
WARNING
The cable sent with the unit is intended to provide the user with the ability to test the unit
right out of the box, and will not provide adequate shielding for all environments.
Power Input and Power Input Ground
2.3
Power is applied to the DMU380SA Series on pins 1 and 2. Pin 2 is ground; Pin 1 should
have 9 to 32 VDC unregulated at 350 mW. If you are using the cable supplied with the
DMU380SA Series, the power supply wires are broken out of the cable at the DB-9
connector. The red wire is connected to the positive power input; the black wire is
connected to the power supply ground.
WARNING
