SDT 5000 User Manual
Document MBUD-0109v11
If the DCD mode is TRX POWERUP the DCD line on the RTU port will
be asserted when the transceiver is powered up.
If the DCD mode is OPERATIONAL the DCD line on the RTU port will
be asserted when the transceiver is powered up and receiving a valid signal
from the satellite.
If the DCD mode is CONNECTED the DCD line on the RTU port will be
asserted when the SDT 5000 has a connection with the host.
Data set ready (DSR)
mode
The DSR mode controls the output of DSR with the following values:
ASSERT, DEASSERT, CPU POWERUP, OPERATIONAL, or
CONNECTED. The default value is ASSERT.
See DCD mode descriptions for the operation of each mode.
Data terminal ready
(DTR) mode
The DTR mode handles the DTR input with the following values: OFF,
NORMAL, or WAKEUP. The default value is OFF.
If DTR mode is OFF, the DTR line is ignored.
If DTR mode is NORMAL, when DTR is not asserted the incoming calls
for the RTU will be rejected. When DTR is asserted the RTU is ready to
receive data.
If DTR mode is WAKEUP when DTR is asserted the transceiver is forced
on and starts listening to the satellite. If a call is received in this mode and
DTR is not asserted the call will be rejected. If DTR drops the transceiver
can turn off when idle. If DTR is not asserted the transceiver may turn of
based on another event. For more information please see section 8, Power
Modes.
Transparent protocol
debug level
Transparent protocol debug can be set to NONE or ALL. If the debug level
is set to ALL debug messages are displayed on the test port to assist with
troubleshooting RTU port problems. The default value is NONE.
Version 1.1, 03/24/06
Page 35
