Setting S35.6 in profile 0 will also protect the supervisory password. If this bit is set, the
supervisory password cannot be reset to the default "ZyXEL" by modem hardware reset (see
Chapter 12). Remember your password before setting this bit.
RESET PROFILES
After you have changed the user profile settings, if you wish, you can reset all four user profiles
to factory preset values. This is done by holding the ENTER key down while you power-on the
modem. Remember that by doing this, all of your user profile settings are lost. Unless you have
set bit 6 in S-register 35 of profile 0, this will also reset the supervisory password to "ZyXEL" (see
last section).
On U-1496E, holding the VOICE/DATA switch down while powering on the modem will reset the
modem. On U-1496B, shorting the jumper TS2 and then turning on the power will reset the
modem.
Note: The reset stated here is a total reset to factory state. If you get somewhere and cannot get
back, this is the way to get to a known state. The modem is also doing continuous self testing
after this reset (see Chapter 17 for details). Turn off power to stop testing.
Chapter Seven - STATUS REGISTERS
S-Registers (Status Registers) contain values that determine and reflect how your modem
operates and executes commands. You can read their values and change them with the same
effect as you do from terminal commands, or through the modem's panel controls.
Every user profile corresponds to a set of S-Register values, but when we mention S-Registers,
we are referring to the ones that correspond to the active profile. If you want to read or change
the values in the profile that is currently inactive, you will have to recall the profile to make it
active (see Chapter 6).
The U-1496 series modems have 60 S-Registers from S0 to S59. S0 to S11 are standard AT S-
Registers; and S13 to S49 are mostly bit-map configured. Changes in the bit-map configuration
can also have the same effect as issuing commands. However, typing in the commands is
recommended.
READ AND SET S-REGISTERS
See Register's Content Modification section in Chapter 5 for reading and setting S-Registers
using the U-1496's LCD panel. When using AT commands, use
ATSr ?
to display the value stored in S-Register `r'; use
ATSr = n (0 <= r <= 59; 0 < n <= 255)
to set S-Register `r' to value `n'; use
ATSr.b = n (0 <= r <= 59; 0 <= b <= 7; 0 <= n <= 1)
