User's Manual

Table Of Contents
08RE399 TDFM-136B Operating Instructions
Primary memories with shadows are identified with a large diamond in the 4
th
character position:
Figure 2-15. Identifying Graphic for Primary Channel with Shadows
Shadow memories are identified with a small diamond in the 4
th
character position:
Figure 2-16. Identifying Graphic for Shadow Channel
2.4 Controlling User Access
Whether to restrict operation to correct modes, or to help avoid mis-configuration in the
field, it may be advantageous to control user access to certain features. The transceiver
supports controlling access to features in different ways, these include:
1. Controlling access to command levels.
2. Controlling access to individual commands via command permissions.
3. Controlling access to squelch modes.
4. Controlling editing of specific memories.
5. Controlling display of frequency information.
2.4.1 Control Access to Command Levels
The most basic access control is provided by the built in restriction of access to Maintenance and
Supervisor level commands (L4 and L5 respectively). Maintaining this access security is crucial for
any subsequent access control, as those methods are all accessed via commands on the L4 and
L5 programming levels. Access to these command levels is gained on one of two ways:
Access via Jumper requires that a hardware jumper (shunt) be placed across two pins inside the
transceiver. Obviously the transceiver must be opened on a bench to use this method. See
appendix A for side panel removal instructions and jumper placement.
Access via Jumper and Passwords is the default condition. When configured like this the
transceiver does not need to be opened to access the restricted command levels. There are two
passwords: one for level 4 (Maintenance), and one for level 5 (supervisor).
Passwords are eight characters long and have the full range of characters available for text edit
(see L2-6 for character list reference).
When attempting to enter the Maintenance Level (L4) you will be prompted for a password, upon
correct entry of the L4 password, you will be granted access to that level
When attempting to enter the Supervisor Level (L5) you will be prompted for a password, upon
correct entry of the L5 password, you will be granted access to that level.
If the Supervisor password is entered when attempting to access the Maintenance level, then
access to both Maintenance and Supervisor Levels is granted.
18 Technisonic Industries Ltd
<

="
