OPERATION
3-21
Revised February 1997
Part No. 001-9750-005
Special Call Authorization
When a mobile is programmed to make Intercon-
nect calls, system authorization is needed before
service is available. This authorization is performed by
the system operator using the System Management
Module of the RNT. This authorization also deter-
mines what type of service is available. For example, a
mobile may be authorized to dial local numbers only.
This authorization is keyed to the mobile's unique ID
which is transmitted when any call is made.
With all Auxiliary calls, no special authorization
is required. All that is needed is proper programming
of the mobiles originating and receiving the call.
Therefore, a Unique ID call can be made to any mobile
in the same site or some other site that is programmed
for Auxiliary calls. The same applies to Directed
Group calls except that the mobile receiving the call
does not need to be programmed for Auxiliary calls,
just the standard group ID being transmitted.
Placing a Special Call
The procedure for placing a special call is as
follows.
a. Select the group programmed for Interconnect or
Auxiliary calls, whichever is to be made.
b. Momentarily press the PTT switch until the proceed
tone sounds. A dial tone should be returned.
c. If an Interconnect call is being made, dial the tele-
phone number of the landside party you are calling.
d. If an Auxiliary call is being made, dial the 4-8 digit
number which specifies the destination of the call.
The digits dialed for each type of call are as follows:
Unique ID Call (Current Site)
4-digit unique ID of mobile/dispatcher
Unique ID Call (Directed Site)
3-digit site ID +
4-digit unique ID of mobile/dispatcher
Directed Group Call (Current Site)
2-digit home repeater
3-digit group ID
Directed Group Call (Directed Site)
3-digit site
2-digit home repeater
3-digit group ID
e. Release the PTT switch if it was pressed to dial the
number. A beep should then sound which indicates
that the number was accepted by the system. If this
beep does not sound, an unauthorized number may
have been dialed or a dialing mistake may have been
made.
f.
Interconnect Call -
The normal landside ringing or
busy tone is then heard. After the party answers,
press the PTT switch and respond.
Unique ID Call -
A “ringing” tone is heard which
indicates that the mobile is being rung. If there is no
answer, the ringing stops after several rings and the
call is automatically terminated by the system. When
the party answers, press the PTT switch and respond.
Directed Group Call -
A second beep sounds
which indicates that the path to the mobile is
complete and speaking can begin (no ringing of the
other mobile occurs).
NOTE: It is not possible to talk and listen at the
same time because this transceiver operates half-
duplex.
g. When the call is finished, terminate it by pressing
the # key. Three rapid beeps indicate that the call has
been terminated.
Receiving Special Calls
When an Interconnect or Unique ID call is
received, “ringing” is heard from the speaker. The call is
then answered in the normal manner. If it is a Directed
Group call, only the voice of the calling party is heard
because no ringing occurs. The originating party usually
terminates the call when it is finished. If the three beeps
which indicate that the call has terminated are not heard,
press the # key to terminate the call.
Summary of Contents for Summit DM 975x
Page 105: ...MULTI NET SYSTEM OVERVIEW 5 10 Revised February 1997 Part No 001 9750 005 ...
Page 108: ...CIRCUIT DESCRIPTION 6 3 August 1993 Part No 001 9750 001 Figure 6 1 Transceiver Block Diagram ...
Page 123: ...CIRCUIT DESCRIPTION 6 18 August 1993 Part No 001 9750 001 ...
Page 131: ...SERVICING 7 8 Revised January 1995 Part No 001 9750 003 ...
Page 156: ...9 19 Revised December 2000 Part No 001 9750 007 TRANSCEIVER EXPLODED VIEW PART 1 ...
Page 168: ...Revised January 1995 Part No 001 9750 003 10 11 INTERCONNECT SCHEMATIC ...
Page 169: ...Revised January 1995 Part No 001 9750 003 10 12 DISPLAY BOARD SCHEMATIC ...
Page 171: ...Revised January 1995 Part No 001 9750 003 10 14 RF BOARD SCHEMATIC REVISED 800 MHZ ...
Page 172: ...Revised January 1995 Part No 001 9750 003 10 15 RF BOARD BOARD LAYOUT ALL 800 900 MHZ ...
Page 173: ...Revised January 1995 Part No 001 9750 003 10 16 RF BOARD BOARD SCHEMATIC 900 MHZ ...
Page 174: ...Revised January 1995 Part No 001 9750 003 10 17 RF BOARD BOARD SCHEMATIC UNREVISED 800 MHZ ...
Page 178: ...Revised January 1995 Part No 001 9750 003 10 21 PA BOARD SCHEMATIC 900 MHZ 30W ...
Page 179: ...Revised January 1995 Part No 001 9750 003 10 22 PA BOARD SCHEMATIC 900 MHZ 15W ...
Page 181: ...Revised January 1995 Part No 001 9750 003 10 24 PA BOARD SCHEMATIC UNREVISED 800 MHZ 35W ...
Page 182: ...Revised January 1995 Part No 001 9750 003 10 25 PA BOARD SCHEMATIC UNREVISED 800 MHZ 15W ...
Page 183: ...Revised January 1995 Part No 001 9750 003 10 26 AUDIO LOGIC BOARD SCHEMATIC PART 1 OF 2 ...
Page 184: ...Revised January 1995 Part No 001 9750 003 10 27 AUDIO LOGIC BOARD SCHEMATIC PART 2 OF 2 ...
Page 185: ...Revised January 1995 Part No 001 9750 003 10 28 AUDIO LOGIC BOARD LAYOUT TOP VIEW ...
Page 186: ...Revised January 1995 Part No 001 9750 003 10 29 AUDIO LOGIC BOARD LAYOUT BOTTOM VIEW ...
Page 188: ...Revised January 1995 Part No 001 9750 003 10 31 REMOTE TRANSCEIVER INTERCONNECT SCHEMATIC ...
Page 189: ...Revised January 1995 Part No 001 9750 003 10 32 REMOTE CONTROL UNIT INTERFACE BOARD SCHEMATIC ...
Page 216: ...Part Number 001 9750 007 12 00 hph Printed in U S A ...
