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Rev. D 9 —
9 —9 —
9 — Installation and Interfacing
Installation and InterfacingInstallation and Interfacing
Installation and Interfacing Page 123
If you presently own a Northstar 800 series loran, you may connect it to
your 941X to serve as an ideal source of Loran-C TDs and previously-
stored waypoint locations. Use the appropriate pin/wire connections and
the 800’s setup sequence, each listed below, to initialize the data output
to be received by the 941X. Port 1 or Port 2 of the 941X, or A or B of the
800, may be used. Wire colors refer to the 941X’s interface cable.
800 OUTPUT
$
$$
$
CONNECT TO EITHER
%
%%
%
PORT A 941X PORT 1 941X PORT 2
Pin 12 brown (#3) white w/brown stripe (#6)
Pin N blue (#1) brown w/white stripe (#2)
Table 5—Connection to Northstar 800 Port A
800 OUTPUT
$
$$
$
CONNECT TO EITHER
%
%%
%
PORT B 941X PORT 1 941X PORT 2
Pin 7 brown (#3) white w/brown stripe (#6)
Pin H blue (#1) brown w/white stripe (#2)
Table 6—Connection to Northstar 800 Port B
To configure the 800 for correct output format, execute COMMAND 83
for output port A, or COMMAND 84 for output port B. Press the lower
SELECT button until PRINTER 3 appears in the lower display, and press
ENT. Then enter the following sequence to program the output parame-
ters:
AT THIS
PROMPT PRESS TO OUTPUT THIS DATA TO 941X
SET UP 149 (ENT) 0183 output format
(8 bits, no parity, 4800 baud)
INTERVAL 1 (ENT) 1 second output rate
ITEM 1 13 (ENT) include GTD sentence in output
(Loran-C TDs)
ITEM 2 26 (ENT) waypoint location*
ITEM 3 31 (ENT) include SRS sentence in output
(status of received signals)
ITEM 4 40 (ENT) include RMA sentence in output
ITEM 5 0 (ENT) end of sequence
Table 7—Northstar 800 Series Output Port Setup
* Only used if you want the waypoint to which you are navigating to be automati-
cally transferred to the 941X’s waypoint database.
connecting to a
Northstar 800
series loran
"