Black Box 32144, Manual

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108
MODEM 32144
5.5.2 S R
EGISTER
F
UNCTIONS
This section describes the function
of individual S registers.
Table 5-3 lists the range of possible
parameters and the default value
for each S register. Only S registers
that are intended for user access
are listed.
S0—RING TO ANSWER ON.
The value in this register
determines on what ring (first,
second, third, etc.) the modem will
answer on. Setting S0 to 0 disables
auto-answer.
S1—RING COUNT. Register S1
counts the number of ring signals
for each incoming call. If more
than 8 seconds have passed since
the last ring, S1 is cleared to zero.
S2—ESCAPE CODE
CHARACTER. The escape code is
effective for asynchronous
operation only. Values greater than
127 will completely disable escape
code detection and prevent you
from issuing a hangup command.
S3—CARRIAGE RETURN.
Register S3 is effective for
asynchronous operation only.
Normally, the ASCII carriage
return value, 13, is used.
S4—LINE FEED. This register
is effective for asynchronous
operation only. The line-feed
character follows the carriage
return only when word result codes
have been selected (command V1).
Line feed can be changed to a null
but cannot be totally disabled.
S5—BACKSPACE. This register
is effective for asynchronous
operation only. The value in S5
defines the backspace character.
Do not use values between 33 and
126.
S6—BLIND DIALING WAIT
TIME. The value in S6 determines
how long the modem will wait after
picking up the telephone line
(going off-hook) before it begins to
dial. If S6 is set for less than 2
seconds, the modem still waits 2
seconds before dialing. If the X2 to
X4 command is in effect, dial tone
detection will be enabled and blind
dialing will be disabled, meaning
that the value in S6 will have no
effect.
S7—CARRIER/DIAL TONE
WAIT TIME. This register controls
two wait times—wait time for
carrier and, if W is included in the
dial string, wait time for dial tone
(or wait time for silence if @ is
used).
S8—PAUSE TIME. The pause
time effected by a comma in a dial
string or other command line is
controlled by register S8.
S9—CARRIER DETECT
RESPONSE TIME. Register S9
determines how long a carrier tone
must be present for the modem to