SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

SonTek/YSI
54
Argonaut Bulkhead Connector Wiring
Pin number Wire color
Function
(RS232)
Function
(RS422)
1 Red
External power
(12-24 V DC)
External power
(12-24 V DC)
2 White Data Out Tx+
3 Violet Data In Tx-
4 Drain Drain Drain
5 Yellow
Battery power
(7-15 V DC)
Battery power
(7-15 V DC)
6 Green Not used Rx+
7 Blue Not used Rx-
8 Black Ground Ground
When using RS232 serial communication, the user end of the power and communication cable is
terminated with a DB9 connector for serial communication and a coaxial power plug for external
DC input power. The DB9 connector is wired to be compatible with standard PC serial
communication ports as shown in the table below. The coaxial power connector has the internal
pin as positive and the outer shield as negative. Power from this plug is wired to pin 1, the
external power supply pin, and can accept 12-24 V DC.
RS232 Serial Communication DB9 Connector Wiring
Pin # Signal Pin # Signal Pin # Signal
1 Not used 4 Not used 7 Not used
2 Data Out 5 Ground 8 Not used
3 Data In 6 Not used 9 Not used
When using RS422 serial communication, the power and communication cable is terminated
with the same coaxial power plug and a DB25 connector wired for RS422. Systems configured
for RS422 also include a RS232/RS422 converter and a DB25/DB9 converter; the end of this
chain is a DB9 connector wired for RS232 as shown in the table above. This allows the cable to
be plugged directly into a PC serial communication port.
5.5.2. Splitter Cable and Dummy Plug – Argonaut XR and SL with Batteries
Argonaut XR and SL systems with the external batteries use a special splitter cable to connect the
battery housing to the Argonaut. This cable has three connectors. The first (8-pin male) connects
to the Argonaut. The second (2-pin male) connects to the battery housing and supplies power to
the Argonaut. The third (8-pin female) connects to the power and communication cable to
configure the system and download data; it is terminated with a dummy plug during deployment.
Figure 11 shows the wiring of the splitter cable. The connector part numbers shown are for
Impulse underwater connectors; see §5.5.1 for contact information. The part number for the 2-pin
bulkhead connector on the battery housing is Impulse LPMBH-2-FS (for information only).
The dummy plug used with the splitter cable is manufactured by Impulse Enterprises, Inc.; the
part number is DC-8-MP (with locking sleeve).
Argonaut Operation Manual Firmware Version 7.9 (May 1, 2001)