Sea-Bird Electronics SBE 38 Manual do Utilizador descarregar pdf (Página 26)

Section 3: Installing System SBE 45

Power-Up Jumper Check

The MicroTSG’s Printed Circuit Board (PCB) has a jumper that controls how

the MicroTSG wakes up:

• Autopower (default) – The MicroTSG wakes up when power is applied.

System capability is dependent on the external wiring configuration:

¾ Three wires – This configuration is useful in simple systems where

a controller applies power, waits for data, and then removes

power. Only three of the four wires (Power, Ground, and Transmit)

are needed for operation, since it is not necessary to command the

MicroTSG to take samples. Note that the MicroTSG does not

respond to any commands in this configuration, so initial setup

of the system must be performed with all four wires in place

(see Command Descriptions in Section 4: Setting Up MicroTSG).

¾ Four wires – With all four wires (Power, Ground, Receive, and

Transmit), the MicroTSG can receive and respond to most

commands. Note that the MicroTSG does not respond to QS in

this configuration.

• Normal – The MicroTSG wakes up when there is a pulse on the serial

interface lines. In this configuration, the MicroTSG can be controlled

using the documented commands and can be commanded into a quiescent

(sleep) state with QS.

Verify the jumper setting in one of the following ways:

• Check the Configuration Sheet (in the manual) for the factory setting, or

• Connect the MicroTSG to the computer as described in Communications

Test and Setup in Section 4: Setting Up MicroTSG. Set the appropriate

communications settings, wake up the MicroTSG with the Connect button

on SEATERM’s Toolbar, and then enter QS after the S> prompt.

The response indicates whether the jumper is in the Normal or

Autopower configuration:

¾ Autopower – system returns S> prompt, indicating that the

MicroTSG is not in quiescent (sleep) state.

¾ Normal – system does not return S> prompt, indicating that the

MicroTSG is in quiescent (sleep) state.

Note:

See Appendix II: Electronics

Disassembly/Reassembly for details

on accessing the PCB to change the

jumper setting.

Note:

For a three-wire external wiring

configuration, or to use the MicroTSG

with the Interface Box, set:

• J1 jumper to Autopower

• AutoRun=Y, and

• SingleSample=N

See Section 4: Setting Up MicroTSG.

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