Black Box 32144, Руководство пользователя

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CHAPTER 3: Options: Customizing the Modem Setup
3.16.1 D
IAL
L
INE
O
PTIONS
(The numbers used to select
different settings for each option
on the Summary Setup LCD screen
are arranged according to option
groups—dial line options, V.42
error-correction options, etc. For
details, see
Appendix B .)
Wait for Carrier
V.25 bis, Dumb modes
The time the modem will wait for a
carrier signal when originating a
call can be set for 30, 45, 60, or 75
seconds. (Note: In Hayes mode,
the wait-for-carrier time is
determined by the value in
register S7.)
3.16.2 V.42 E
RROR
-C
ORRECTION
O
PTIONS
Selective Retransmission
Hayes, V.25 bis, Dumb, Leased-line
modes (except V.33)
This option allows the modem to
communicate with certain modems
that are not able to respond to the
MNP selective retransmission
command.
ENABLE. This setting allows the
modem to request retransmission
of a single information frame (in
the event of a transmission error).
DISABLE. Data can be
retransmitted only in a series
of information frames.
LCD Intensity
All modes
This option allows you to use
pushbutton 3 (for INC or increase)
to darken characters on the LCD
or pushbutton 1 (for DEC or
decrease) to lighten them.
3.16 Options Accessible Only via
Summary Setup
The options described in this
section can only be changed
through the modem’s Summary
Setup feature, which is explained
in
Appendix B . For most
applications, it is not necessary to
change these options—they are
intended primarily for specialized
applications. For an explanation of
how to change these options,
available option settings and the
default setting for each option, see
Appendix B .
Three additional options
accessible only via Summary Setup
include Operating Mode Fallback,
Rate Renegotiation Procedure, and
Speed Fallback.