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REMOTE CONFIGURATION
This mode of operation allows viewing or modifying the options of a
remote modem that supports Motorola UDS remote configuration.
Remote configuration is performed using the front panel LCD or more
commonly AT commands from the local terminal. Remote configura-
tion is initiated by the local (master) modem through a proprietary
protocol, a security code, and an acknowledgment from the remote
(slave) unit to be modified. The security code is user inserted and
provides protection from unauthorized entry. The modems are shipped
from the factory without a security code.
Note
Remote configuration is supported at all rates except 300
bps.
Remote Configuration Security
The correct security code must be received by the remote modem before
remote configuration can be established. Once established, the local
DTE becomes a virtual terminal and can serve both local and remote
modems. After starting remote configuration, the local DTE serves the
remote modem.
To return DTE service to the local modem while in remote configura-
tion, issue the +++ escape sequence.
DTE service can again be returned to the remote modem by issuing the
O command. Switching DTE service between local and remote modems
may be performed as needed.
To exit remote configuration, return DTE service to the local modem.
The &T command will exit remote configuration mode.
Remote configuration may be entered immediately after dialing by
placing the remote configuration command (%T=), without the = sign
and followed by the security code, at the end of the dial string.
Remote Security Code %P=
A security code prevents unauthorized access to remote configuration
mode. This code is separate from low and high security passwords,
which are discussed under Security in the next section. The security
V.3400
AT Commands
5-43
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