MultliModemISI Hybrid Series, ISIHI-2S 101
Chapter 5—TERMINAL ADAPTER AT Commands, S-Registers, Result Codes
Terminal Adapter
&Rn
CTS Control
Values: n = 0, 1, or 2
Default:
&R1
(CTS forced high)
Allows you to control the state of the CTS (Clear to Send) signal. Normally the CTS
signal follows the state of the RTS signal when TA is online.
&R0
CTS acts normally; that is, it follows RTS.
&R1
CTS is forced high, but still provides online flow control.
&R2
CTS is forced high, but it drops on disconnect for the period of time set by
S10. CTS still provides flow control when the TA is online.
&Sn
DSR Control
Values: n = 0, 1, or 2
Default:
&S1
(DSR normal)
Controls the state of the DSR (Data Set Ready) signal on the RS232E/V.24 interface. A
high DSR signal indicates to the computer that the TA is ready to transmit data.
&S0
DSR is always high.
&S1
DSR acts normally; that is, it follows the state of the CD signal, which goes
high when the ISIHI-2S detects a carrier signal, and goes low when the carrier
signal is lost.
&S2
DSR is always high, except on disconnect, when it drops for the period of time
set by S10 and then goes high again.
&Vn
View Port Configuration Parameters
Values: n = 0, 1, 2
Default: n/a
Allows you to view the port configuration parameters for ports 0 and 1. This listing is the
equivalent of both L5 and L6 combined.
&V0 Displays port 0 configuration parameters.
&V1 Displays port 1 configuration parameters.
&V2 Displays both port 0 and port 1 configuration parameters.
&Wn
Store Active Profile
Values: n = 0 or 1
Default:
&W1
(Use factory default profile)
Stores your active profile, or configuration, in memory, so you don’t lose your custom
settings when you turn off the TA or reset it.
&W0
Stores all current AT command and S-register values in nonvolatile random
access memory (NVRAM) and configures the TA so it reads your custom
settings in NVRAM when the modem is turned on or when it is reset with the
Z
command. (The
&F
reset command continues to read the factory default
settings in ROM.)
&W1
Erases your custom settings in NVRAM the next time the TA is turned off or
reset, causing the TA to read the factory default settings in ROM whenever it
is turned on or reset.