Kenwood TK255 Operator's manual

\KENWOOD\TK250\USERINST.DOC
FYLDE
MICROSYSTEMS Ltd
TK255/355 Trunk Variant
User Instruction
Manual
Prepared by
Brian Seedle

Fylde Microsystems Ltd - Kenwood User Instructions ver 0.09 Page (2)
CONTENTS
OVERVIEW...............................................................................................3
USER OPERATION ..................................................................................3
2.1 Directory Menu..........................................................................5
2.2 Numeric Menu...........................................................................7
2.3 Tel-Directory..............................................................................9
2.4 Messages Displayed During Call Setup....................................10
2.5 Status Menu ..............................................................................13
2.6 Stack Menu................................................................................14
2.7 Receiving Calls..........................................................................16
2.8 Other Displays...........................................................................18
3. USER OPERATION - KEYPAD.............................................................20
3.1 Summary of Keyboard Syntax...................................................21
3.2 Summary of Control Codes.......................................................22
3.3 Changing Modes .......................................................................23
3.4 Storing Dialled Digits.................................................................23
3.5 Keypad Operation on the Traffic Channel.................................24
3.6 Examples of Keyboard Strings..................................................25

Fylde Microsystems Ltd - Kenwood User Instructions ver 0.09 Page (3)
1. OVERVIEW
The radio is available in two variants. The simple variant does not have
a keypad and has a user interface similar to the TK715 series of mobile
designs. The installation of a keypad enables the MPT1343 dialling
syntax to be used.
2. USER OPERATION
FUNC - Function key to select menu's
Directory
Numeric
Tel
DIGIT - Select 100', 10's Units in Numeric Mode
ST - Status/Stack selection
LOCK - Keyboard/Encoder Lock and Display Invert
VOL - Volume Control
ENCODER - Increment/Decrement menu selection
LED - Transmit - Steady Red
Low Batt - Flashing Red

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There are several menu's selectable from the FUNC,DIGIT and ST keys. The
DIR/NUM/TEL menu cycles around with each press of the FUNC key. (TEL
and/or NUM may not be supported on some Networks so those menu's will not
be accessible.) The STACK/STATUS menu is accessed and cycled around
using the ST key.
The CALL symbol informs the user that a call has been made from another
mobile which was not answered. There may also be an audible pip. The ident
of the calling mobile will be stored in the memory of the mobile so that the call
can be returned. The portable can store up to nine calls.
The In Service Indicator informs the user that the mobile is in range of a valid
transmitting site, and can make calls.
DIR
NUMTEL
FUNC KEY STACK/STATUS KEY
STATUSSTACK
PORTABLE POWERS UP

Fylde Microsystems Ltd - Kenwood User Instructions ver 0.09 Page (5)
2.1 DIRECTORY MENU [ dr ]
On power up, the portable will display it's own ident, and then search for a
control channel. When a control channel is found the In Service LED will flash.
INITIATING CALLS
The portable will power up in DIRECTORY mode unless DiRectory mode has
been disabled during Network Personalisation. The numbers of the mobiles
within the fleet will have been stored in the directory. The indication of directory
mode is the display -
If the right hand knob is turned, the number in the display will change.
Clockwise UP, Anticlockwise DOWN. Only numbers allocated in the directory
will be displayed. The numbers rotate, i.e having reached the top, it will go to
the bottom
If the IDENT stored in the directory is to a DISPATCHER, a small 'd' will also be
displayed in the lower left hand corner of the display.

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The directory may hold a number of GROUP numbers. This is a feature where
several mobiles in the fleet may conference the same call to-gether. If a group
number has been selected, a small 'c' will be displayed.
When a particular directory entry has been selected, the call may be made by
pressing the CALL button. (The portable may have been personalised to initiate
a call using the microphone pressel.)
There is only space in the directory for 20 entries. If the portable has been
configured for NUM mode, pressing the FUNC key will change the display to the
NUMERIC menu.
If DiRectory mode has been disabled during Network Personalisation, then the
portable will power up in NUmeric mode.
The directory menu display may be substitited with a display of the users choice
during personalisation. Each DiRectory display entry may be changed to any
four alphanumeric characters. Thus for example the names of the users could
be displayed as DAVE, JOE, JOHN.

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NUMERIC MENU [ N ]
When the portable is personalised, the fleet size may have been entered as
either 'Large Fleet' or 'Small Fleet'.
A small fleet uses 2 digits within the range 20-99. Pressing the DIGIT button
will make the tens digit flash. Rotating the knob changes the flashing digit, or
the units digit if no digits are flashing.
A large fleet uses 3 digits within the range 200-999. Pressing the DIGIT button
will make the tens digit and then the hundreds digit flash. Rotating the knob
changes the flashing digit, or the units digit if no digits are flashing.

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To avoid calling mobiles outside the fleet, some of the numbers may be barred.
The small digit in the bottom left hand corner gives extra information
'E' The number selected is out of Rang[E]
'c' The number selected is a conference (group) ident
Pressing the call button with a barred number in the display will inhibit the
attempt and give a 'range' error.

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2.3 TEL DIRECTORY [ tel ]
If the Network supports telephone interconnect and at least one PSTN/PABX
number has been stored in the directory (there is space for 4) then pressing the
FUNC will enter TEL mode
The display is -
When a particular directory entry has been selected using the knob, the call
may be made by pressing the CALL button. (or the microphone pressel if
enabled during personalisation)
Pressing the FUNC key will return to DIR mode
DIR
NUMTEL

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2.4 MESSAGES DISPLAYED DURING CALL SET-UP
The call was rejected by the Network, because -
The Network cannot process your call at this time or, you or the other party are
not valid on the Network or, the other party cannot be reached and the
Network cannot queue your call request
NoReply - The call was rejected by the Network, because the called
mobile was either out of range or switched off.
The call has been acknowledged by the Network. More information to follow.
-----------------------------------------

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The call button was pressed with a barred number in the display.
The call attempt is inhibited
-------------------------------------------------
The call has been acknowledged by the Network, but there are no channels
available to connect the call at the moment. The Network will attempt to
connect the call when a channel becomes free.
-----------------------------------------
The call has been acknowledged by the Network, but the called ('B' party) party
is engaged on another call. The Network will attempt to connect the call when
the other party becomes free.
-----------------------------------------

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The call has been connected and the display is showing a call timer. If the
Network supports dynamic call time, the display will count down and indicate
the time left for the call. If the display counts up, it indicates the duration of the
call so far. If the squelch is open, the 'BUSY' will be illuminated.
When the call is complete, the user can press the CLEAR button or if installed,
replace the microphone on the hook.
-----------------------------------------
The call has been stacked by the other party, and you will be called back
-----------------------------------------
The four dots indicate the received signal strength on the control channel. A
strong signal will be shown as four dots.

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2.5 STATUS MENU
If the Network supports STATUS then the Kenwood supports comprehensive
facilities for -
Transmitting a STATUS
Receiving a STATUS
Interrogating another mobile for its STATUS.
Sending a Status
A status is a single numeric value in the range 1-30 which may be transmitted to
another mobile in the Network. The status value 0 is reserved for dispatcher
operation. The value 31 may be used to erase a status previously transmitted.
The ident of the mobile must first be entered in DIR or NUM mode. (A status
cannot be sent to the PABX/PSTN)
Pressing the STATUS/STACK key will change to the status menu
The status value transmitted will be stored in the STACK of the recipients
mobile.
Rotating the knob will select a value in the range 1-31. Pressing the call button
will transmit the status to the ident previously selected in DR or NUM mode.
There is another powerful feature associated with Status. A mobile may be
interrogated for its status value. A mobile will only reply with its status if its
STxx menu is in its display. If a mobile is interrogated, and the STnn is not
displayed, it will reply with status 28 (which means status not set). If
interrogated with STnn displayed however (nn in range 1-29), the mobile will
send the status value displayed back to the interrogating mobile. To interrogate
another mobile, the status value 30 must be sent. The result is placed in the
mobile call stack which is described on the next page.

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DIR/NUM/TEL
STATUSSTACK
STACK/
STATUS
2.6 STACK MENU
Pressing the STATUS/STACK key once more will enter STACK mode. This
menu displays a call stack. There is space for 9 entries.
The call stack can store -
Status values and the ident of the calling party for status's
received.
Idents of mobiles which called and were unanswered.
If there are no entries in the stack the display will be
The small right hand digit in the display will be non zero if there any entries in
the stack. If there is more than one entry, rotating the knob will move up and
down the stack
If a call has been stacked by the TK255, the green LED will flash to
indicate to the user that a call is waiting to be returned. If calls are
returned or the CLEAR is pressed to delete calls in the stack, the green
flashing LED will stop when the stack is empty.

Fylde Microsystems Ltd - Kenwood User Instructions ver 0.09 Page (15)
This display shows that a called in absence was received from a mobile whose
ident is in the directory position 02. The call button may be pressed to return
the call, or the RESET button pressed to delete this stack entry.
This display shows that a status 12 was received from a mobile whose ident
was calculated at dr07. The position in the stack cannot be displayed. In the
case of a status received, the call cannot be returned by pressing the call
button. It a call is attempted, a ST ERR message will result.
This display shows a call in absence that has been stacked, but the portable is
unable to determine the calling party ident. The call can however be returned
using the call button or deleted using the CLR button.

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2.7 RECEIVING CALLS
Calls received inbound alert the user (called party), and the calling party
is displayed in either dr or nu form. Some examples are given
Call from dr 07
Call from NU206
Call from the PSTN

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Call from the PABX
This last display shows that the mobile is unable to determine the
calling party ident. The call may be returned however by pressing the
CALL button.
A special ident (not a mobile) which the Network uses.
If the call is not answered, (except in the case of PABX/PSTN and SPECIAL
idents, the ident of the caller will be put in the mobile stack.
The CALL symbol is used to indicate that there is one or more entries in the
stack. A pip tone is also generated.

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2.8 OTHER DISPLAYS
The call has either -
Been terminated because the mobile traffic channel timer has expired.
Been terminated because the Network traffic channel timer has
expired.
Been terminated because the Network inactivity timer has expired. (i.e
no one is talking)
Been terminated by this mobile, or the other party pressing the CLEAR
button.
A dash travelling across the screen indicates that the mobile is searching for a
control channel.

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The LOW symbol indicates that the battery is low but the portable is still
usable to make and receive calls. To alert the user that the battery is
low, a short pip is generated every 5 seconds. In addition the Red LED
flashes.
The battery voltage is low and calls cannot be made or received. The
controller has stunned the portable. the battery must be changed.
If the LOCK key is held for more than 2 seconds, the display will invert.
This is to make the display easy to read when the TK255 is worn on a
belt.
The example shows a group ident selected to JOHN

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3. USER OPERATION KEYPAD
The portable can also initiate calls using the keypad. If any key is
pressed, the keypad mode is selected. If any of the buttons FUNC,
DIGIT or ST are pressed, or the encoder is rotated, the portable will
return to directory mode as previously described. In applications where
the keypad may be inadvertently pressed, a keyboard LOCK key will
freeze the keyboard. A pip tone indicates that the keyboard is locked. If
the LOCK key is pressed again, the keyboard will unlock. Two pips
acknowledge the unlock.
The keypad conforms to the MPT1343 dialling scheme.
Since there are only 4 visible digits, the four least significant digits will
be displayed. In the example, the user has entered the number
123456789. Only the 6789 is visible, the other digits scrolled to the left
as they were entered.
CLR This key changes to keypad mode and clears the display.
The combination * # can also be used to clear the display.
Numeric Digits 0-9
The value will be echoed in the display
Hash key # Terminates the keyboard entry and initiates the call