5
TK-480
OPERATING FEATURES
■
System up/down
When the key is pressed each time, the system number
to be selected is incremented/decremented and repeats if
held for one second or longer.
■
Telephone disconnect
Pressing this key ends an RIC connection (disconnects
the telephone line).
■
None
Sounds error operation beep, and no action will occur.
Use this function when the transceiver is required to be
more simple operated.
2-4. Display
Alphanumeric display
The twelve-character dot matrix alphanumeric display
shows the system and group numbers. You can program
system and group names with up to ten characters in
place of these numbers. The left display is used as a de-
lete indicator (
) and the right is used for the selective
call (
) or scrambler ( _ ) function. The delete/add indica-
tor shows the systems locked out of the scanning se-
quence. Selective call and scrambler are optional func-
tions that can be programmed. Also displays received
messages when using DMS (Digital Message System).
3. Option Signalling
3-1. DTMF
Built-in DTMF decoder is available for option signalling.
It is possible to use individual call, group call, D.B.D.
(Dead Beat Disable). D.B.D. is used with DTMF only.
If the option signalling matches, a predetermined action
will occur.
If option signalling matches on a group which is set up
with option signalling, the option signalling indicator ( ) will
flash and option signalling will be released. The transpond
or alert tone will sound.
If the selective call alert LED is set up, the orange LED
will flash.
While option signalling matches (or if option signalling is
deactivated when you are transmitting), you can mute or
unmute ID/QT/DQT/Carrier.
■
AND/OR
You can select AND or OR for option signalling match
conditions.
Alert/Transpond
AND
QT/DQT/ID+DTMF; Option matches = Action
OR
QT/DQT/ID+DTMF; Option matches = Action
AF mute open
AND
QT/DQT/ID+DTMF; Option matches = Action
OR
QT/DQT/ID; Signalling only matches = Action
With OR set up, alert/transpond will not function with
only DTMF.
With OR set up, AF mute will not release when only
DTMF matches.
With a conventional group not set up with QT or DQT,
only the carrier is considered when signalling matches.
■
Auto Reset
If option signalling matches a group set up with option
signalling, option signalling is released. After matching op-
tion signalling, option signalling will temporarily reset auto-
matically.
Sub display
Displays the system and group numbers. Also displays
various functions which have been programmed.
P (Priority) indicator
The P indicator (
) appears when a selected channel is
programmed as priority, in conventional operation.
MON (Monitor) indicator
The MON indicator appears when the button pro-
grammed as MONITOR is pressed.
SVC (Service) indicator
This icon is not used on this transceiver.
SCN (Scan) indicator
The SCN indicator appears when using Scan mode.
LO indicator
Appears when low power is selected.
Handset indicator
The handset indicator (
) appears when the selected
group is programmed as telephone IDs.
MAIL indicator
Flashes when a status message (DMS) is received.
Lights when a status message is stored in the stack
memory.
P
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