E.F. Johnson Company 5100 ES, Operating Manual

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3-12 ES Series Models II/III Portable Radio Operating Manual
General Operation
3.6 Keypad Lock
The Keypad Lock feature temporarily disables the front panel keys to prevent keys from
being accidentally pressed. This feature is available if the Keypad Lock option button is
programmed. To lock the keypad, simply press the Keypad Lock option button. Then to
unlock the keypad again, press and hold this button until a tone sounds.
Disable Toggle during Keypad Lockout can be programmed for customers who do not
want the portable toggle switch to be functional while the radio is in keypad lockout mode.
When enabled, if the radio is in keypad lockout mode the toggle switch will not be
functional. Upon exiting keypad lockout mode, the radio will not update to the current
toggle position. Unless the toggle switch is programmed for the Keypad Lockout function,
changing the toggle position during keypad lockout mode will display "Kypd Lockd". If
the toggle switch is programmed for the Keypad Lockout function, it will perform that
function as expected.
Permanent Keypad Lockout can also be programmed. The keypad is then permanently
disabled and cannot be enabled by the user. Additional information on this feature follows.
• A global “Front Keypad Lockout Only” function can be selected by programming. The
front panel keys but not the side panel option buttons are then disabled by the preceding
Keypad Lock and Permanent Lock functions. If this function is not selected, both the
front and side panel buttons are disabled. The PTT switch is usually not disabled.
However, if enabled in programming, the radio will ignore PTT attempts when an
external microphone is attached.
• The Channel Selector and Volume controls can be programmed so that they are locked
by the Keypad Lock function.
• The “Channel Selector Enabled” function can be programmed globally. If this is not
selected, the channel selector is always disabled regardless of the Permanent Lockout or
Keypad Lock status. Channels can then be selected only by direct channel select (see
Section 3.3).
• The volume control is permanently disabled if a Volume Up/Down option button is
programmed regardless of the Permanent Lockout or Keypad Lock status. Refer to
Section 3.1.3 for more information.
• There is the option to enable the backlight when a key is pressed in the Keypad Lock
mode. There is also the option when programming conventional channels to disable
DTMF dialing.