System And Group Scanning; General; Scan On-Off - E.F. Johnson LTR-Net 7243 Service Manual

7.5vdc 1 and 4 watts part no. 242-7243-xxx
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and then programming a default condition in the
menu mode programming screen. However, if a
parameter can be changed by an option switch or
menu parameter, the default condition is maintained
only until the first time it is changed (cycling power
does not reselect the default condition).
Calls cannot be received or transmitted while the
menu mode is selected.
Enter/Exit
Menu Mode
MENU
PARAMETERS
Select by
pressing
STR
BANK
SEL
Other Menu
Parameters
Menu Mode Flowchart
Using Menu Mode
Proceed as follows to select functions using the
menu mode. A flowchart of the menu mode is shown
above.
1. Select the menu mode by pressing FCN MENU. The
first menu parameter is then displayed.
2. To scroll through the available menu parameters,
press the
(scroll down) and
3. To display the option that is currently selected for
the parameter, press the STR key.
4. To change the selected option, press the
keys.
5. To exit back to the parameter and save the selected
option, press STR again.
6. When the desired condition of each menu parameter
is selected, exit the menu mode by pressing FCN
MENU again. The menu mode is also automatically
Press FCN MENU
PARAMETER
OPTIONS
Press
Bank 1
Bank 2
Bank x
(scroll up) keys.
and
exited 2 seconds after a change is made or 8 seconds
after no changes are made.

2.6 SYSTEM AND GROUP SCANNING

2.6.1 GENERAL

Introduction
The scan feature monitors, in sequence, the
systems and/or groups in the scan list. When a
message is detected that the transceiver is programmed
to receive, scanning stops and the message is received.
Shortly after the message is complete, scanning
resumes (unless it has been disabled). System and
group scanning or group scanning only may be
selected, and they operate as follows. Refer to Section
2.3.12 for more information on systems and groups.
System Scanning - Detects calls on all systems in
the system scan list (see Section 2.6.8). If system
scanning is not used, calls are detected on only the
currently selected system.
Group Scanning - Detects calls on all groups in the
group scan list. These groups are from the selected
system and also from scanned systems if system
scanning. If group scanning is not used, calls are
detected on only the selected group and higher
priority LTR-Net and LTR groups (see Section
2.8.2).

2.6.2 SCAN ON-OFF

System and/or group scanning are turned on and
off by pressing FCN SCAN. When either type of scan-
ning is enabled,
is indicated in the display as
shown in the following illustration. Then when system
scanning is actually occurring with the numeric
System Scan List
S
System Scanning
Occurring
System or Group
Scanning Selected
2-13
OPERATION
Group Scan List
G
Group Scanning
Occurring
November 2001
Part No. 001-7240-001

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