AT Commands
102906_01_en
PHOENIX CONTACT
6-15
S12
Waiting Time for Detecting the Escape Character
Register S12 specifies how long your modem should wait once the Escape string has been
entered before identifying the Escape character and displaying an OK message.
This value is specified in units of 20 ms (1/50 s).
Default: 50 (1 s)
(A smaller value may not leave enough time to type in three Escape characters before the
waiting time elapses.)
S13
Not Used
S14
Modem Control Register (Bit-Mapped)
Register S14 can be used to control specific modem features, such as confirmations, echo,
and dialing methods.
In addition, you can specify whether your modem should act as a caller or callee.
S15
Not Used
S16
RDL Options, Line Enable, Retraining, Reply Codes for the Modem
(Bit-Mapped)
Register S16 controls the options for requesting a digital remote test (remote digital
loopback), the use of enable signals, retraining, and the reply codes that your modem
outputs.
S17 - 20
Reserved
S21
Modem Control Register (Bit-Mapped)
Register S21 controls the caller mode (originate) and control signals for data transmission.
S22
Modem Control Register (Bit-Mapped)
Register S22 controls the internal modem speaker.
S23
Modem Control Register (Bit-Mapped)
Register S23 indicates the status of the monitoring tone.
S24
Energy-Saving Mode (Sleep Timer)
This register indicates the time in seconds after which the modem switches to energy-
saving mode. As soon as an activity is detected on the telephone line or on the serial
interface, the modem exits energy-saving mode.
S25
Delay Time for Data Terminal Ready Status
This register specifies how long your modem needs to detect a change in the DTR signal.
The values are between 0 and 255 in units of 0.01 seconds.
Default: 0.05 s