SonTek/YSI
ADVField/Hydra Operation Manual (September 1, 2001) 55
• For older, real-time ADVField systems (without the internal recorder or battery power):
o The connector is a female 16-pin underwater mateable connector.
o The bulkhead connector used is an Impulse MBH-16-FS.
o The mating connector on the cable is an Impulse MIL-16-MP (with locking sleeve).
o Table 19 gives the pin-out for this connector.
o Note: This cable has been discontinued.
Table 19. Impulse MIL-16-MP Connector Pin-outs
Pin # Signal Pin # Signal Pin # Signal
1 Vpower 7 Vz 13 Not Used
2 Vx 8 Amp 14 Rx-
3 Vy 9 Ground 15 SyncOut
4 Ground 10 Data Out / Tx+ 16 Ground
5 SyncIn 11 Data In / Tx-
6 Rx+ 12 Ground
The standard termination for the power/communication cable uses a DB9 connector for RS232
serial communication and a coaxial connector for power. The DB9 connector has the same pin-
out as the DB9 connector on the ADVField splash-proof housing (§4.3.1). The coaxial connector
uses the center conductor as positive and the outer conductor as negative. Contact SonTek for
more information about custom cable wiring and access to the auxiliary input/output signals.
4.3.3. External Sensor Connector
Systems with external sensors may use different cables/connectors depending on the sensor being
used. Two of the more common connector pin-outs are shown in the following tables. If you are
unsure of your connector type, contact SonTek.
Table 20. Sensor Connector Pin-outs (8-pin, underwater, male)
Pin # Signal Pin # Signal Pin # Signal
1 Sensor power out 4 Ext Sensor Chan 1 7 Sync In
2 Ext Serial Data In 5 Ext Sensor Chan 2 8 Ground
3 Ext Serial Data Out 6 Sync Out
Table 21. Sensor Connector Pin-outs (16-pin, underwater, female)
Pin # Signal Pin # Signal Pin # Signal
1 Not used 7 Paros temperature 13 Not used
2 Ext Sensor Chan 1 8 Paros pressure 14 Not used
3 Ext Sensor Chan 2 9 Ground 15 Ext Serial Data Out
4 Sync Out 10 Not used 16 Ground
5 Sync In 11 Not used
6 Not used 12 Ext Serial Data In
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