Manual revision 001
Appendix III: SIM Hookup and Configuration
SBE 39
plus
-IM
91
Interface Option Connection (J1, J2, and J4) and I/O Connector Wiring (JP2)
Verify that the SIM is configured for RS-232:
•
Jumper is on
J1
pins 2 and 3.
•
Jumper is on
J2
pins 2 and 3.
•
Remove jumper on
J4
.
Connect wires to
JP2
as follows:
•
Pin 2
– RS-232 transmit from SIM to computer
•
Pin 3
– RS-232 transmit from computer to SIM
•
Pin 5
– Power Common
Inductive Mooring Cable Connection (JP4)
•
IM instruments installed with Inductive Cable Coupler (ICC)
-
Connect wires from the ICC to JP4 on SIM-Coupled.
•
IM instruments installed without Inductive Cable Coupler
-
Connect wires from the mooring cable and seawater ground to JP4 on
SIM-Direct.
Normal Deployed Operation (J5)
•
Normal Deployed Operation
– Ensure jumper on J5 is installed.
•
Instrument Setup and Lab Testing
- Remove jumper on J5. Removing
the jumper on J5 inserts a 1K resistor in series with the inductive loop,
reducing the signal amplitude. This prevents the IM instruments in close
proximity from responding to commands, which is especially important
when sending
*ID=
.
Note:
ICC version 4 may have 3 wires in the
cable. If you ordered the ICC with a
pigtail termination, solder the white
and white/black wires together and
attach to 1 terminal of JP4. Attach the
white/red wire to the other terminal.
9
1
J1
J2
1
2
3
Note:
If more than one IM instrument is
on-line when you set the ID, all IM
instruments will be set to the same
ID.
The inductive modem receivers in
IM instruments are very sensitive; two
IM instruments that are side-by-side
will take the same ID, even if one of
them is not on the IM loop.
Therefore,
separate IM instruments by at least
2 meters when setting IDs.
