Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications download pdf (Page 86)

IS15 General Manual

84 20220760L

Interfacing to a Simrad AP11 or AP 20 series

autopilot

Use a single cable with two twisted pairs of wire for this

connection.

NMEA Out

The connection will provide speed, depth, temperature and wind

data input to the autopilot.

With a J3000X Junction Unit in the system the autopilot will

also receive GPS data via this connection provided a

GPS/chartplotter is connected to the Expander.

The connection is made to the J3xx Junction Unit Main Board,

Terminals RX1+ and RX1-.

NMEA In

This connection provides heading data input to the instruments.

The connection is made to the J3xx Junction Unit Main Board

terminals TX1+ and TX1–.

Figure 6-29 Simrad Robertson “X” series autopilot connection

Note !

With a J300X Junction Unit in the autopilot system you may

have redundancy and a higher heading output rate if you run a

separate and direct NMEA interface between the chartplotter

and the autopilot.

In that case connect the IS15 Expander to J300X, RX2/TX2

instead. Connect the chartplotter (port 1) to IS15 as shown in

Figure 6-12. In addition connect the chartplotter (port 2) to

J300X, RX1/TX1. On the autopilot and the chartplotter the

interfacing must be set up accordingly.

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Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications Page 86