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User Manual Part 2

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APPENDIX D
SOFTWARE COMMANDS
Revised: 13 Sep 05 APX D- 4 EST P/N AA104
DNP (On/Off)
This command command enables the DNP protocol. For further information reference Engineering Report 21-004. Factory
default = Off.
On: Enabled
Off: Disabled
DTR_enab (on/off)
The DTR enable command. This command, when enabled, allows the ESTeem modem to monitor pin 20 of the RS-232C
connector in regards to the status of an external device connected to it.
ON: Enables monitoring the DTR signal on pin 20 of the RS-232C connector. If DTR is at a space condition, then the
modem is enabled. If DTR is at a mark condition, then the ESTeem modem will be disabled. The normal operation of
this line is for the ESTeem modem to have status on the external device, out-putting to pin 20. This line can act as a
status to the ESTeem when the external device is ready to transmit or receive data.
OFF: Disabled
Factory default = OFF.
Note: If the DTR command is enabled and the line is disabled then the ESTeem will perform a "Disconnect" if connected. The
DTR Command will also activate the Data Carrier Detect (DCD) Line (Pin 8) to toggle High when connected and Low
when disconnected.
ECHO (on/off)
This command enables the ESTeem to echo characters received from the input device back to the input device.
ON: Enabled.
OFF: Disabled.
Factory default = ON.
EDit (on/off)
This command enables the EDIT functions from the CONVERSE Mode.
Factory default = ON.
FActory
The factory default command. The execution of this command causes the ESTeem to restore the command table values from
factory values that are stored permanently in memory. This will allow the user the ability to restore the ESTeem to factory
conditions during testing or set-up.
FLASH
This command places the ESTeem in Flash mode for reprogramming of the operation system.
FRAck (1-255)
This command programs the frame acknowledge delay in milliseconds. This value is used as a minimum time before
decrementing the retry count and retransmitting a packet if the retry count is not zero.
Factory default = 50.