NorthStar 941X Reference Manual page 134

RS-232 Port
SC-104 out
SC-104 in
Page 126
Use this same EDIT procedure to set the baud rate to match that of the
external device, if necessary. (Refer to the external device's instructions
for correct baud rate setting.) The 941X is now configured to accept dif-
ferential corrections from an outside source.
The RS-232 port is used for interfacing to an external DGPS beacon re-
ceiver, an external device that accepts SC-104 differential corrections, or
a personal computer.
When connected to a beacon receiver, you can receive differential cor-
rections through the RS-232 port. This is useful if your 941X is not
equipped with an internal beacon receiver, but you want to navigate us-
ing differential corrections.
If your 941X features an internal Northstar beacon receiver, you can use
the RS-232 port to transmit its differential corrections to another device
that accepts them.
If you wish to download your waypoints to a personal computer, or to
have the unit upgraded by your dealer or the factory with new operating
software, you can connect to a PC using the RS-232 port.
Following are descriptions of the RS-232 port's various settings:
SC-104 OUT outputs differential corrections from your 941X's internal
beacon receiver to an external device that accepts the standard SC-104
data stream. When using SC-104 OUT, be sure that the BAUD RATE
setting also matches the baud rate requirements of the receiving device.
SC-104 IN accepts differential corrections from any external source
transmitting the standard SC-104 data stream. Use this setting if your
941X is not equipped with an internal DGPS beacon receiver and you
wish to receive differential corrections from an external source. When
using SC-104 IN, be sure that the BAUD RATE setting also matches the
baud rate of the transmitting device.
Switching to SC-104 IN enables the 941X to receive DGPS cor-
rections from an external source and disables the internal
DGPS beacon receiver (if installed).
9 — Installation and Interfacing 9 — Installation and Interfacing
9 — Installation and Interfacing 9 — Installation and Interfacing
NOTE
Rev. D