OPERATION
3-26
Revised February 1997
Part No. 001-9750-005
access attempts are then made until the push-to-talk
switch is released and then pressed again.
•
If this tone sounds after the transmitter has been
keyed for an extended time and the transmitter turns
off and “TX TIMEOUT” is displayed, the trans-
mitter has been disabled by the Time-Out Timer
feature (see Section 3.6.1).
•
If this tone sounds as soon as the push-to-talk switch
is pressed with a conventional channel selected and
“TX DIS BSY” is displayed, the channel is busy and
the transmitter was disabled by the Transmit Disable
On Busy feature (see Section 3.9.1). If “TX
DISABLE” is displayed instead, a conventional
receive-only channel is selected (see Section 3.9.6).
•
If the push-to-talk switch is pressed while receiving
an LTR call, this tone sounds and “TX DIS BSY” is
displayed.
Proceed (Clear-To-Talk) Tone -
This is a 20 milli-
second burst of the 700 Hz tone which sounds after the
push-to-talk switch is pressed to indicate when talking
can begin (see Section 3.6.3).
Key Press Tone -
This is a 30 millisecond burst of the
700 Hz tone that sounds to indicate when a key or the
Select switch is pressed or turned.
MULTI-NET SPECIAL CALL TONES
NOTE: The following tones are produced by the Multi-
Net RNT and are heard only when placing special
calls.
Confirmation Tone -
A short tone which sounds
when the number dialed is accepted by the system.
Call Proceed Tone -
With Multi-Net Directed Group
calls, ringing does not occur after the number is dialed.
Instead, this short tone sounds after the confirmation
tone to indicate that the audio path is complete and
speaking can begin.
End Call Tone -
Three beeps which sound when the
end of the call has been detected by the system.
Proceed Dialing Tone -
When placing a landside-
originate call to a mobile, the caller may dial the
number of the system and then when the system
answers, a number specifying the mobile being called.
This tone sounds to indicate when the number of the
mobile should be entered.
LTR TELEPHONE CALL TONES
NOTE: The following tones are produced by the LTR
RIC interconnect equipment and are heard only when
placing LTR telephone calls.
Reorder Tone -
Three beeps which indicate that the
call has been terminated by the system.
Return Time Warning Tone -
Two beeps which warn
that you have not transmitted for an extended period.
If you do not transmit within 5 seconds, the call is
automatically terminated by the system. The time
between transmissions is one of the parameters used
by the system to detect the end of a call when the #
character is not sent.
Conversation Time-Out Tone -
Calls are limited to a
certain length by the system. Thirty seconds before
this time is reached, a “tick” begins sounding each
second. When the 30-second time expires, the call is
automatically terminated by the system.
Turn-Around Tone -
This is a single beep which may
be used to indicate to the landside party when to
respond to your transmission. It sounds when you
release the PTT switch, and you may partially hear this
tone.
Proceed Tone -
This tone consists of two beeps and it
tells the landside caller when to enter the five-digit
number specifying the mobile being called. Dialing of
this number must be started within 5 seconds of
hearing this tone, and a tone-type telephone must be
used.
3.10.2 DISPLAY MESSAGES
The following messages may appear in the ten-
character alphanumeric display.
ALL CALL -
Indicates that the Multi-Net “All Call”
special call is being received. This is a high priority
call to all mobiles assigned to a site. If another call is
being received, it is dropped to receive this call.
Содержание Summit DM 975x
Страница 105: ...MULTI NET SYSTEM OVERVIEW 5 10 Revised February 1997 Part No 001 9750 005 ...
Страница 108: ...CIRCUIT DESCRIPTION 6 3 August 1993 Part No 001 9750 001 Figure 6 1 Transceiver Block Diagram ...
Страница 123: ...CIRCUIT DESCRIPTION 6 18 August 1993 Part No 001 9750 001 ...
Страница 131: ...SERVICING 7 8 Revised January 1995 Part No 001 9750 003 ...
Страница 156: ...9 19 Revised December 2000 Part No 001 9750 007 TRANSCEIVER EXPLODED VIEW PART 1 ...
Страница 157: ...Revised January 1995 Part No 001 9750 003 9 20 TRANSCEIVER EXPLODED VIEW PART 2 Remote Control Parts ...
Страница 168: ...Revised January 1995 Part No 001 9750 003 10 11 INTERCONNECT SCHEMATIC ...
Страница 169: ...Revised January 1995 Part No 001 9750 003 10 12 DISPLAY BOARD SCHEMATIC ...
Страница 170: ...Revised January 1995 Part No 001 9750 003 10 13 DISPLAY BOARD TOP VIEW DISPLAY BOARD BOTTOM VIEW ...
Страница 171: ...Revised January 1995 Part No 001 9750 003 10 14 RF BOARD SCHEMATIC REVISED 800 MHZ ...
Страница 172: ...Revised January 1995 Part No 001 9750 003 10 15 RF BOARD BOARD LAYOUT ALL 800 900 MHZ ...
Страница 173: ...Revised January 1995 Part No 001 9750 003 10 16 RF BOARD BOARD SCHEMATIC 900 MHZ ...
Страница 174: ...Revised January 1995 Part No 001 9750 003 10 17 RF BOARD BOARD SCHEMATIC UNREVISED 800 MHZ ...
Страница 178: ...Revised January 1995 Part No 001 9750 003 10 21 PA BOARD SCHEMATIC 900 MHZ 30W ...
Страница 179: ...Revised January 1995 Part No 001 9750 003 10 22 PA BOARD SCHEMATIC 900 MHZ 15W ...
Страница 180: ...Revised January 1995 Part No 001 9750 003 10 23 PA BOARD BOARD LAYOUT 900 MHZ UNREVISED 800 MHZ 15W 30W 35W 15W MODELS ...
Страница 181: ...Revised January 1995 Part No 001 9750 003 10 24 PA BOARD SCHEMATIC UNREVISED 800 MHZ 35W ...
Страница 182: ...Revised January 1995 Part No 001 9750 003 10 25 PA BOARD SCHEMATIC UNREVISED 800 MHZ 15W ...
Страница 183: ...Revised January 1995 Part No 001 9750 003 10 26 AUDIO LOGIC BOARD SCHEMATIC PART 1 OF 2 ...
Страница 184: ...Revised January 1995 Part No 001 9750 003 10 27 AUDIO LOGIC BOARD SCHEMATIC PART 2 OF 2 ...
Страница 185: ...Revised January 1995 Part No 001 9750 003 10 28 AUDIO LOGIC BOARD LAYOUT TOP VIEW ...
Страница 186: ...Revised January 1995 Part No 001 9750 003 10 29 AUDIO LOGIC BOARD LAYOUT BOTTOM VIEW ...
Страница 188: ...Revised January 1995 Part No 001 9750 003 10 31 REMOTE TRANSCEIVER INTERCONNECT SCHEMATIC ...
Страница 189: ...Revised January 1995 Part No 001 9750 003 10 32 REMOTE CONTROL UNIT INTERFACE BOARD SCHEMATIC ...
Страница 216: ...Part Number 001 9750 007 12 00 hph Printed in U S A ...
