Telebit WorldBlazer User Manual page 22

90257-01
• AlB Configuration Select
This switch is used to select one of two possible
sets of operating configurations.
When you power up or reset the modem, it loads
Configuration A's or Configuration B' s operating
parameters from nonvolatile memory, depending
on the position of the AlB switch. If the switch is in
the A position, the modem loads Configuration A;
if the switch is in the B position, the modem loads
Configuration B.
Changing the position of the AlB switch resets the
modem and loads the corresponding new
configuration from nonvolatile memory. Do not
press the AlB switch while a communications
session is in progress, as this disconnects the call.
• TID Switch
This switch controls the modem's connection to the
telephone line much like the hook switch on your
telephone.
If you press the
TID
switch while the modem is on
hook (offline; OR indicator is off), the modem goes
off hook (online) and attempts to connect in
originate mode. This allows you to place a call
manually using the telephone set, then switch to
data mode when the call is established.
If you lift the telephone handset and then press the
TID
switch while the modem is off hook (OR
indicator is on), the modem goes on hook, allowing
you to either disconnect the call or switch to voice
communications.
If you press the
TID
switch while switching on the
power, the modem enters the configuration
selection mode. This mode is described in the
following sections.
The Basics
3-3