v60 – Marine Satellite Communication System
68
Set modem protocol
Use TX mute &
EXT. lock
PR OTOCOL GPS OUT SENT ENCE
I/O CONSOLE GPGLL
5. MODEM PROTOCOL* is to select a proper communication protocol on the ACU to
interface with the modem. GPS OUT SENTENCE* is to select the GPS OUT SENTENCE
type.
MODEM PROTOCOL*
I/O CONSOLE: is a protocol for interchanging of information (GPS Out, TX mute, and
modem lock) between the ACU (through Console port) and a modem.
OpenAMIP: is an ASCII based protocol developed by iDirect for interchanging of
information between the ACU and a modem. OpenAMIP is not intended for any purpose
except to allow the ACU and a modem to perform synchronized automatic beam
switching (ABS).
SERIAL GPS: is a protocol for sending GPS Out information from the ACU (through
RS232/422 port) to a modem.
GPS OUT SENTENCE*
GPGLL
GPGGA
SIMPLE GPGGA
USE TX MUTE USE EXT. L OCK
YES YES
6. USE TX MUTE is to select whether or not to USE TX MUTE function from the satellite
modem. A transmit inhibit output from the ACU will disable/mute the modem transmit via
a voltage whenever the antenna is blocked, searching, or is mis-pointed 0.5º from the peak
satellite position.
USE EXT. LOCK is to select whether or not to use external lock signal from the satellite
modem. USE EXT. LOCK item will only be activated when PROTOCOL is set as I/O CONSOLE.
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