Navman la000507 User Manual
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)
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
• Link for JB3/4 must be fitted
• Link for JB16/17 must be fitted
• SW3 DIP switch must be all off except SW3.3