L-3 Communications CEU, User Manual

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Remote Control Operations STE User’s Manual
8-14 Rel. 2.6
8-5.2.23 AT&C[0]
Sets bit 5 of register S21 to “0”, and asserts the DCD signal when entering Remote Control as well as
whenever the STE enters the Remote Control Command State, the Connecting State, and the
asynchronous on-line Traffic State.
When in the synchronous on line Traffic State, DCD is asserted whenever receive traffic from the network
is present and unasserted otherwise.
DCD is unasserted when exiting Remote Control.
8-5.2.24 AT&C1
Sets bit 5 of register S21 to “1” and does not assert the DCD signal when entering Remote Control, and
unasserts DCD whenever the STE enters the Remote Control Command State.
When entering the asynchronous On-line State, DCD is asserted.
When in the synchronous On-line State, DCD is asserted whenever receive traffic from the network is
present and unasserted otherwise.
DCD is unasserted when exiting Remote Mode.
8-5.2.25 AT&F
When on-hook, this resets all S-registers to their default values.
8-5.2.26 AT&M0
Sets bit 6 of register S28 to a “0” and uses asynchronous communications as the On-line State. If
register S27 is set to any invalid asynchronous rate, sends the error result code to the DTE and leaves
S28 unchanged.
8-5.2.27 AT&M1
Sets bit 6 of register S28 to a “1” and uses synchronous communications as the On-line State. If register
S27 is set to any invalid synchronous rate, sends the error result code to the DTE and leaves S28
unchanged. If S28 bits 1 and 2 are set to SCIP signaling mode, sends the error result code to the DTE
and leaves S28 unchanged.
8-5.2.28 AT&V1
Send the Software Versions to the DTE as a verbose ASCII string framed by carriage return and line feed
characters (as defined by S3 and S4) regardless of the S14 register Q and V settings. If terminal is off-
hook, send the error result code to the DTE.
8-5.2.29 AT+A
Send authentication information associated with the far-end user or terminal to the DTE regardless of the
S14 register Q and V settings. If a security association is not established, send the error result code to
the DTE.
8-5.2.30 AT+Cn
Directs the STE to complete call setup and enter the Traffic State (AT+C1) or to go on-hook and return to
Command State (AT+C[0]). The AT+Cn command should only be issued to the STE following receipt of
the VERIFY result code. The AT+C1 results in a CONNECT or CONNECT (rate/voice mode) result
code.
During the processing of the Displayed Security Level Change (DSLC) command (At+Nr), the responding
STE, when in remote control, will lower the DCD signal for approximately 100 milliseconds. The STE will
then enter the Command state, return a 0/OK result code (if it is not already in the Command State),
deliver the informational text string SECURITY LEVEL CHANGED TO: <security level> followed by the
VERIFY prompt and it will then wait for a response. If the acknowledge response (AT+C2) is entered,
processing continues.
After the responding STE has acknowledged the DSLC request, the initiating STE will prompt for
acknowledgement by delivering the informational text string SECURITY LEVEL CHANGE TO: <security