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Chapter 6 - Menus
Composite Link Settings - External Device
The Composite Link Settings - External Device menu allows you to configure the composite link
for an external device. The default parameters for an external device are displayed in the
following menu:
Composite Link Settings -External Device
1 - On-Line XMT Rate: 56000
2 - Clocking: External
3 - Back to Back: Off
4 - DOD/DOI: On
5 - DOI Timer: 03min
6 - DOD Toggle DTR: 40sec
S - Store All Configurations
M - Main Menu
P - Previous Menu
Selection : _
The On-Line Transmit (XMT) Rate option displays the on-line transmit rate of the composite link
device. If the composite link is not up, Off-Line is displayed.
The Clocking option allows the internal composite link to accept timing from either its internal
timing oscillator or from a synchronous full-duplex external device. The options are Internal and
External clocking, with a default of External.
The Back to Back option is used to test the port by connecting two DataTalkers together using a
back-to-back cable. The options are On and Off with a default of Off.
The Dial On Demand (DOD)/Disconnect On Inactivity (DOI) option to the external device to
disconnect if the inactivity timer has expired and raises DTR to reconnect if the voice/fax or data
channel goies active. The default is to have the DOD/DOI option turned off. If this option is off,
options 5 and 6 do not appear on the menu.
The Disconnect on Inactivity (DOI) Timer option signals the external device to hang up the
composite link by dropping DTR to it when the timer expires. When the DOI Timer option is
selected, a submenu is displayed in which you can enter the number of minutes that the inactivity
timer is set for. The range of the timer in minutes is 01 to 99. The default setting for the timer is
three minutes.
Disconnect On Inactivity Timer. This is
the timer for inactivity -> DTR drop.
x - Enter the number of minutes
P - Previous Menu
Selection : _
The Dial On Demand (DOD) Toggle DTR option activates the DTR Toggle Timer. When activity
on the voice/fax or data channels cause DTR to go high telling the external device to DTR dial,
this timer is started. If the connection is established before this timer expires, the timer is
stopped. Otherwise, when the timer expires, DTR is toggled to tell the external device to dial
again and this timer is restarted. The default is 40 seconds.
DTR Toggle Timer. This is the timer to
toggle DTR if the link does not come up.
x - Enter the number of seconds(0 is off)
P - Previous Menu
Selection : _