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Navman LA000507 User Manual

Page 10

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10

LA000510C © 2006 Navman NZ Ltd. All rights reserved. Proprietary information and specifications subject to change without notice.

Pins

Function when linked

JB1/2

Current link for 5 V supply. Can be used to

determine current on 5 V rail. Not used for the

Jupiter 20 module.

JB3/4

Current link for the primary power 3.3 V

supply. Can be used to determine supply

current for 3.3 V rail.

JB5/6

Current link for the secondary power RTC

supply. Can be used to determine supply

current for RTC rail.

JB10/11 5 V supplied to Pin 1 of the DR connector
JB11/12 3.3 V supplied to Pin 1 of the DR connector
JB13/14 not used
JB14/15 not used
JB16/17 Internal interface enable (normally fitted)

Table 3-4 Pin functionality

In addition to the configurable jumpers, there is a selection of test points on the board. The

signals available on the test points are shown in Table 3-5.

Test point

Function

E1

TXA

E2

RXA

E3

TXB

E4

RXB

E6

1PPS

E7

not used

E8

ground

E9

ground

Table 3-5 Signals available on the test points

There are some settings that should not be changed when using the standard Jupiter 20 module

in conjunction with the Development Unit. These are as follows:

• SW2 must remain selected on 3.3 VDC
• Link for JB3/4 must be fitted
• Link for JB16/17 must be fitted

• SW3 DIP switch must be all off except SW3.3