Motorola GP68 User manual

ManualNumber:502-4501
23278 Bernhardt Street • Hayward, CA. 94545
Phone: [phone] • Fax: [phone]
Internet: [email protected]
InstallationandOperation
Manual
SmarTrunk II
TM
LogicBoard
for
MotorolaGP68
PortableRadios
SmarTrunk Systems, Inc. • ST-865M3
Motorola P/N PMLN4066A

Quality Policy Statement
SmarTrunk Systems, Inc., has a continuing objective to enhance our
worldwide reputation as a supplier of products and services which meet or
exceed customer requirements.
With personal commitment and pride in everything we do, all officers,
managers,andemployeeswillworktogetherforcontinuousimprovementin
theprocessesandprocedureswhichaffect SmarTrunk’sproductqualityand
customerservice.
SmarTrunkTM isaTrademarkofSmarTrunkSystems,Inc.
MotorolaManualNumber
68P04370J43
Warranty Policy
All SmarTrunk products are guaranteed to meet or exceed published performance specifications and are warranted against defects in material
and workmanship for a period of two (2) years from date of purchase. Third
party equipment such as radios, power supplies, antennas, etc., carry the
factory warranty of their respective manufacturers.
All warranty repairs must be performed at the SmarTrunk factory in Hayward,
California, or other factory authorized repair depot. Any unauthorized repair
attempted by the customer, alteration or modification of the equipment, damage
by external sources, or removal or alteration of the serial number label or date
code, will void the warranty. Specifically excluded from this warranty are
batteries, fuses, lamps, and damage caused by lightning, power surges, or
mechanical abuse.
Equipment for repair may be returned to the factory without prior written
authorization; however, a note must be sent with the packing list briefly
describing the nature of the defect. Repairs must be shipped freight prepaid
and will be returned freight prepaid. Shipments should be directed to:
SmarTrunkSystems, Inc.
ATTN: Repair Department
23278 Bernhardt Street
Hayward, CA 94545, U.S.A.

CONTENTS
iii
5/1/96
INTRODUCTION ......................................... V I I
1  OPERATION .............................................. 1
1.1 Landline To Subscriber Call .................... 1
1.2 Receiving A Call ..................................... 2
1.3 Call Routing Codes For Subscriber
Initiated Calls ......................................... 2
1.3.1 Subscriber To Landline Call ................................ 3
1.3.2 Subscriber To Subscriber Call............................. 3
1.3.3 Fleet Dispatch (Subscriber) To Group Call ........ 3
1.3.4 Conventional Mode............................................... 3
1.3.5 Mobile Operator Call ........................................... 4
1.3.6 Emergency Call...................................................... 4
1.4 Originating A Call ................................... 4
1.4.1 Store And Send Dialing ........................................ 5
1.4.2 Memory Speed Dialing ......................................... 6
1.4.3 Programming Memory Speed Dial Numbers ...... 6
1.4.4 Redial ..................................................................... 7
1.4.5 Priority Call Override........................................... 7
1.4.6 Clear Channel Alerting......................................... 8
1.5 Call Termination ..................................... 8
1.6 Radio-Kill ............................................... 9
2  OPERATING MODES ............................... 11
2.1 Subscriber ID Numbers/Paging Code
Numbers ............................................... 11
2.2 Conventional ......................................... 14
3  INSTALLATION ........................................ 15
3.1 Disassemble Radio ................................ 15
3.1.1 Remove Battery ....................................................16
3.1.2 Remove Radio Chassis ........................................17

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3.2 Installation of the Logic Board ............... 18
3.3 Reassemble Radio ................................ 19
3.3.1 Replace Radio Chassis .......................................19
3.3.2 Replace Battery and Antenna ............................20
3.4 Trouble Shooting ................................... 21
3.5 Portable Radio Programming ................... 22
3.5.1 System Tone..........................................................22
4  LOGIC BOARD PROGRAMMING .............. 23
4.1 Entering The Program Mode ................... 23
4.2 Programming Feature Descriptions ........ 23
4.2.1 Number of Trunking Channels...........................24
4.2.2 Primary Code.......................................................26
4.2.3 Secondary Code ..................................................26
4.2.4 Priority Subscriber Enable.................................26
4.2.5 Five Digit Access Code .......................................27
4.2.6 Return To Radio Default Values.........................28
4.2.7 Trunking System ID Number ..............................28
4.2.8 Automatic PTT Mode...........................................29
4.2.9 Emergency Call Override ...................................29
4.2.10 Clear Channel Alerting Mode............................30
4.2.11 Radio-Kill .............................................................30
4.2.12 Memory Speed Dial Programming.....................30
4.2.13 Conventional Operating Mode ..........................31

CONTENTS
v
Tables
Table 1-1 • Call Routing Codes ........................................................ 3
Table1-2•Dialing Modes ................................................................ 5
Table2-1•ST-852MProgramming ............................................... 13
Table2-2•MobileProgramming .................................................... 14
Table4-1•Programming OptionsSummaryTable .......................... 25
Figures
Figure3-1• Slide Battery Latch...................................................... 16
Figure3-2•SlideBatteryCover..................................................... 16
Figure3-3• Remove Radio Chassis................................................ 17
Figure3-4•ExplodedView of Radio ............................................. 18
Figure3-5•ReplaceRadio'sChassis.............................................. 19
Figure3-6•Troubleshooting........................................................... 21
Appendixes
AppendixA•Programming Worksheet........................................... 33
Appendix B • Motorola P/N • HLN9247A & HLN3083A
SmarTrunkSystems,Inc.•ST-868M50
CrossReferenceChart ............................................ 35

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INTRODUCTION
vii
The ST-865M3 SmarTrunk II Logic Board is a microprocessor based radio trunking logic board designed for use with Motorola GP68 Radio. The
ST-865M3 implements SmarTrunk II, an efficient radio channel allocation proto-
col. The SmarTrunk II Logic Board controls all radio functions including channel
scan, PTT, and all transmit and receive audio. In combination with the ST-852M
SmarTrunk II Digital Trunking Controller, the Logic Board provides a complete
multi-channel digital access radio trunking system.
The ST-852M is the heart of the SmarTrunk II system. Programming and opera-
tion is performed by the System Operator/Manager. Many of the programmable
features of the ST-865M3 require information unique to a specific system. These
system specifics can only be obtained from the System Operator/Manager.
In addition to SmarTrunk II trunking operation, the ST-865M3 has a conventional
operating mode. This mode allows the radio to operate as a conventional two way
radio on the programmed radio channels. Conventional mode can be disabled by
the dealer.
The ST-865M3 offers the user the following features:
• Store and send dialing
• 10 number memory speed dial (user programmable)
• Last number re-dial
• Different ringing tones to distinguish the type of call
• Clear channel alerting tells subscriber when a channel is available
• Ten levels of priority call override
• Two trunking modes: radiotelephone and fleet dispatch
• Capability of operation on SmarTrunk and conventional non-trunked
radio channels
• Automatic acknowledgment eliminates wasted airtime
• Five digit security code for dealer programming
• Remote Radio-Kill to disable illegal and non-paying customers
This manual is presented in four sections:
•Section 1, Operation, describes operational features.
•Section 2, Operating Modes, describes the operating modes available in
a SmarTrunk II system.
•Section 3, Installation, provides instructions for programming of radio
frequencies and installation of the ST-865M3 logic board.
•Section 4, Logic Board Programming, provides the installing technician
instructions to configure the ST-865M3 by programming the resident
EEPROM.
Please read the entire manual before proceeding in order to take advantage of all
the advanced features.

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9
Subscribers already familiar with the original SmarTrunk system will find the SmarTrunk II digital system just as easy to use. There are also many additional
features and enhancements. The ST-865M3 begins trunking operation as soon as
the radio is powered on. Channel selection, transmit control, receiver audio, and
other radio functions are all under the control of the ST-865M3. Radio channel
access is tightly controlled. Unauthorized transmission and monitoring of trunking
channels is not possible by SmarTrunk II equipped radios.
During keypad operation, the ST-865M3 provides audible alerts. These alerts
are:
a. Short chirp is generated each time a key is pressed.
b. High frequency beep indicating a successful keypad entry sequence.
c. Low frequency beep indicating that improper data has been entered.
d. Three long low frequency beeps indicating all channels are busy or im-
proper keypad operation.
e. DTMF tones during DTMF over-dialing.
1.1 Landline To Subscriber Call
When the ST-852M is called from a telephone system, it answers the
telephone line with two beeps. The caller then dials the subscriber ID
number of the subscriber or group that they are trying to call.
If the subscriber ID number is valid, the ST-852M attempts to reach the
subscriber over the air. If the subscriber ID number is for a radiotelephone
subscriber unit that is powered OFF or is out of the operating, area the
caller will hear a busy signal. If the subscriber unit is powered ON and is
inthe operating areathe caller willhear a ringback and theST-865M3 will
start ringing. The subscriber answers the call by pressing the asterisk key
(*)on the microphoneDTMF keypad (Push-To-Talk (PTT) is not pressed).
If the subscriber does not answer within the mobile answer time
(programmable), the caller will get a busy signal for a few seconds and
then the ST-852M will hang up. If the subscriber does answer, the caller
will hear two beeps and can then begin talking.
1 • OPERATION

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1.2 Receiving A Call
The subscriber is alerted to an incoming call by ringing of the subscriber
equipment. This alerting takes four forms, related to the type of incoming
call.
a. A long single high frequency ring is generated by the logic board,
then a low frequency dual tone ring is generated by the controller.
This indicates an incoming landline call.
b. A short double high frequency ring is generated by the logic board,
then a low frequency dual tone ring is generated by the controller.
This indicates an incoming call from another SmarTrunk II radio
subscriber.
c. A short single high frequency ring is generated by the logic board,
then a double beep is generated by the controller. This indicates a
manually dialed group call.
d. A short single high frequency ring is generated in the calling radios
logic board, then a double beep is generated by the controller. This
indicates a (PTT) dispatch group call.
For items a and b, the subscriber must press * on the DTMF keypad to
answer the incoming call (Push-to-talk (PTT) is not pressed). For items c
and d, the subscriber may communicate with other members of the group
by pressing PTT (no answer action is required).
1.3 Call Routing Codes For Subscriber Initiated
Calls
Call routing codes are used for initiating a call from a subscriber to the
appropriate destination. Call routing codes are commonplace in PBX
telephone systems. For example, to place a call to an outside telephone
line through a PBX, a call routing code of typically 0 or 9 must be dialed
first. The SmarTrunk II system operates in a similar fashion, however, the
call routing code is placed at the end of the calling sequence.
The following table describes all the call routing codes. The subscriber
needs to be familiar only with the call routing codes that apply to their
application.

1 • Operation
11
1.3.1 Subscriber To Landline Call
Routing codes 1 and 2 give the subscriber access to tele-
phone line one or two respectively. A subscriber may be
restricted from line 2, or there may not be two telephone
lines connected to the ST-852M. In this case, routing code
2 is not valid.
1.3.2 Subscriber To Subscriber Call
Routing code 3 allows the subscriber to place a call to an-
other subscriber or group of subscribers. The call is routed
through the ST-852M and does not use the telephone sys-
tem.
1.3.3 Fleet Dispatch (Subscriber) To Group Call
Routing code 4 allows the subscriber to place a call to the
subscriber’s own group. This functions as though the sub-
scriber had used routing code 3 with the subscriber ID num-
ber of the subscriber’s own group. When automatic PTT is
enabled, operation of the PTT initiates a group call to the
subscribers group using routing code 4.
1.3.4 Conventional Mode
Routing code 5 selects conventional mode. In this mode,
radio channel switch positions not used by SmarTrunk II
trunking channels may be programmed and used for con-
ventional two-way radio operations. This feature is enabled
or disabled during initial setup of the radio. Availability of
this mode is determined by the radio dealer supplying the
radio, or the System Operator/Manager.
Table 1-1  Call Routing Codes
Routing Code Destination
1 Subscriber to Landline 1
2 Subscriber to Landline 2
3 Subscriber to Subscriber
4 Fleet-Dispatch/GroupCall
5 ConventionalMode
9 Mobile Operator
0 Emergency

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1.3.5 Mobile Operator Call
Routing code 9 calls the subscriber that is preprogrammed
as the Mobile Operator. This functions as though the sub-
scriber had used routing code 3 with the subscriber ID num-
ber of the Mobile Operator. The Mobile Operator is pro-
grammed by the System Operator/Manager.
1.3.6 Emergency Call
Routing code 0 causes the ST-852M to access line 1 and dial
the preprogrammed emergency phone number. The emer-
gency phone number is programmed by the System Opera-
tor/Manager.
See the ST-852M SmarTrunk II Digital Trunking Control-
ler Manual for details on programming the emergency num-
bers.
1.4 Originating A Call
Thissectiondescribes theadvancedSmarTrunk IIdialingmethods. Dialing
has an automatic five second time-out. If the time between pressing keys
in a dialing sequence exceeds five seconds, the ST-865M3 times out. A
low frequency beep will be heard and the dialing procedure must be
restarted. To clear out previously entered data and restart dialing, press
the # key.
A busy tone will be heard by the subscriber if connection is not possible.
This can occur if a radio channel is not available, or if the subscriber unit
isout of range. The subscriber must then retrythe call at a later time, when
within range and a radio channel is available.

1 • Operation
13
Table 1-2 and the following paragraphs summarize the advanced dialing
modes available:
Table 1-2  Dialing Modes
1.4.1 Store And Send Dialing
This is the normal method of placing a telephone call.
a. Enter the telephone number, or subscriber ID number
on the radio front panel numberic keypad.
b. Enter the routing code for the destination of the call.
c. Press the * key.
d. Hear a beep followed by the phone system signal-
ling.
e. Wait for the called party to answer the call.
Example: To dial the telephone number 633-8899 on
Landline 1, enter the following sequence:
6 3 3 8 8 9 9 1 *
Up to fourteen digit telephone numbers may be entered.
Dialing Mode Procedure
StoreandSendDialing (number to dial) + (routing code) + *
Memory Speed Dialing * + (memory location)
Programming Speed Dial Memory * (hold until beep) + (memory location) +
(The ability to program speed dial (number to store) + (routing code) + *
numbers can be disabled by the dealer).
Redial Mode * + *
Priority Call Overide * + * (hold until beep)

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1.4.2 Memory Speed Dialing
This procedure is used for dialing a telephone number or
subscriberID numberthat is stored in the speed dialmemory:
a. Press the * key.
b. Enter the memory speed dial location (0-9).
c. Hear a beep followed by the phone system signal-
ling.
d. Wait for the called party to answer the call.
Example: Tocall atelephone number fromthe speed dial
memory location 6, enter the
following sequence: * 6.
1.4.3 Programming Memory Speed Dial
Numbers
The following procedure is used for programming a tele-
phone number or subscriber ID number into the ST-865M3
speeddial memory.
a. Press and hold the * key until a beep is heard.
b. Enter a memory speed dial location.
c. Enter the telephone number or subscriber ID number
that you wish to program into the speed dial memory.
d. Enter the routing code.
e. Press the * key to complete the programming se-
quence.
Example: To program the speed dial memory location 3
withthe telephone number 555-6666 routed to
landline one, enter the following sequence:
*(hold), after the beep, 3 5 5 5 6 6 6 6 1 *
Upto fourteendigit telephone numbers may be programmed.
The ability to program speed dial numbers can be disabled
by the dealer.

1 • Operation
15
1.4.4 Redial
Redial is most often used after a telephone number is dialed
using the store and send method and the line is busy or a
trunking channel is not available.
Example: To redial the last number dialed:
Press the * key twice.
Turning off the power to the radio clears the redial memory.
If redial is attempted when no number has been entered, a
low frequency error tone will be heard. Redial may be re-
peated as many times as desired.
1.4.5 Priority Call Override
A subscriber unit programmed as a priority subscriber can
initiatea PriorityCall Override after a call is attemptedbut all
channelsare busy. PriorityCall Overridewill tryto pre-empt
an ongoing call.
If a channel is not available for a call, Priority Call Override
can be used to try to gain access to a channel.
To start a Priority Call Override:
Press and release the * key, and then
press and hold the * key until a beep is heard.
Each subscriber is assigned one of ten priority levels. When
the ST-852M receives a priority call override command, it
comparesthe priority level of the current call in process with
the override command. If the override command is a higher
priorityit will pre-emptthe callin process. Oncethe trunking
channel is released, the priority subscriber’s call will be pro-
cessed in the normal fashion. If a channel is not made avail-
able, a busy signal will be heard by the subscriber.
Programming a subscriber unit as a priority subscriber does
not guarantee access to the system. A priority subscriber
may be denied access depending on the priority level of the
other subscribers. Access may be impossible if the RF sig-
nal strength of the current subscriber on the trunking chan-
nel is stronger than that of the priority subscriber. Priority
CallOverride is a dealer programmable option.

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1.4.6 Clear Channel Alerting
If a call is attempted and no trunking channels are available,
the subscriber will get a busy signal. The subscriber can try
to redial over and over until the call is processed but this is
very frustrating. Clear Channel Alerting Mode eliminates
this problem.
If Clear Channel Alerting Mode is enabled and all channels
are busy when a call is attempted, a busy signal will be
generated by the ST-865M3. After the busy signal, the ra-
dio will continue to scan all trunking channels looking for a
free channel. The radio will chirp every 10 seconds while in
this mode. When a channel is free, the radio will generate a
double beep ( low then high). The subscriber can then at-
tempt to place another call or use the Redial feature (press-
ing*twice). TheST-865M3 willnot automatically redial. If
other subscribers are using the clear channel alerting mode
at the same time, the first subscriber to attempt a call will
capture the channel.
Once a clear channel is detected, the Clear Channel Alerting
Mode is canceled.
The subscriber can cancel the Clear Channel Alerting Mode
and return to the Trunking Mode by pressing any key on
theradio front panelnumberic keypad. Clear ChannelAlert-
ing is a dealer programmable option.
1.5 Call Termination
A subscriber ends a call by pressing the pound key (#) on the radio front
panelkeypad. The ST-852M will disconnect and release the channel. For
group calls, all of the subscribers in the group will be disconnected.
Calltermination willalso occurif thesubscriber exceedsthe calllimit time,
or if the subscriber unit activity timer expires at the ST-852M. See the ST-
852M SmarTrunk II Digital Trunking Controller manual for details about
setting these times. In addition, if a subscriber unit loses the signal from
the ST-852M for 5 seconds, the subscriber unit will return to the idle state.
A disconnect signal is indicated with a beep. After the beep, the sub-
scriber unit returns to the idle state.

1 • Operation
17
1.6 Radio-Kill
If the radio has been remotely disabled by the System Operator/Manager,
it will generate a continuous stream of low frequency beeps and will not
operate. The radio must be returned to the dealer or System Operator/
Manager for reprogramming. Radio-Kill is a feature that is programmed
and managed by the System Operator/Manager.

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19
The ST-865M3 may be operated in three modes; Radiotelephone, Fleet Dis- patch and Conventional. The System Operator/Manager determines which of
these modes are made available to each subscriber.
The features of the operating modes are described below:
• Radiotelephone - The subscriber receives private calls and group calls.
He can initiate telephone calls, call other radiotelephone subscribers and
call any group. Call records for each subscriber and group are main-
tained for billing.
• Fleet Dispatch - The subscriber is assigned to two groups and receives
calls for both groups. If Automatic PTT is enabled, the subscriber can
call the main group by simply pressing PTT, with no keypad entry. The
subscriber may also initiate telephone calls, call radiotelephone subscrib-
ers and call any group. Call records for both groups are maintained for
billing.
• Conventional - Subscribers have access to non-trunked radio channels
that operate as two way radio service. If this mode is enabled, mobiles
may switch from trunking operation to conventional by selecting a non-
trunked channel using the radio's channel select switch and then pressing
5* on the radio keypad.
2.1 Subscriber ID Numbers/Paging Code
Numbers
SmarTrunk II modes (Radiotelephone and Fleet Dispatch) are a function
of subscriber identification programming.
Eachsubscriber ina SmarTrunk II System maybe assignedtwo Subscriber
ID Numbers. Subscriber ID numbers are similar to a telephone number.
This is the number a landline or radio caller uses to contact the subscriber.
As a security measure, this number is aliased to another number (Paging
Code Number) for over the air signaling. This security measure insures
that a radio listener cannot correlate any of the over the air signalling
with a number dialed. The Paging Code is expected to be a confidential
number known only by the System Operator/Manager and associates that
program the subscriber equipment. There is no requirement for the
subscriber to have knowledge of the Paging Code associated with the
equipment in use. The associated Subscriber ID Number provides
sufficientsubscriber information necessary for allSmarTrunk II operation.
2 • OPERATING MODES

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TheSystem Operator/Manager activatesa subscriber (individualor group)
by programming the ST-852M SmarTrunk II Controller. This activation
involves assigning a Subscriber ID Number, Paging Code Number,
operational type and a number of other controller parameters. As
previously stated, each piece of SmarTrunk II subscriber equipment is
capableof "over the air" operation with twoPaging Code Numbers. These
are the numbers that will be programmed into the subscriber equipment.
An individual Subscriber ID Number and associated Paging Code are
numbers assigned to one subscriber. The subscriber may be called as an
individual by other subscribers or from the landline. Calls made by and
to the individual subscriber are accounted for and recorded by the ST-
852M SmarTrunk II controller.
A group Subscriber ID Number and associated Paging Code are numbers
assigned to more than one subscriber. These grouped subscribers will
receivea common alert if the Subscriber IDNumber is called from another
radio subscriber or from the landline. This signalling is commonly used
for dispatch/fleet radio operation. Calls made by and to any subscriber in
the group are accounted for and recorded by the ST-852M SmarTrunk II
controller.
Example #1: If a subscriber is only a radio telephone user, the Pri-
mary Code is programmed for the Paging Code associ-
ated with the Subscribers ID Number. When the sub-
scriber has no need for radio group calling, the Sec-
ondary Code should be programmed with the same
number as the Primary Code. In this case, the
SmarTrunk II subscriber equipment operates similar to
single line telephone.
Example #2: If a subscriber has a requirement to operate radio tele-
phone and radio group calling, the individual Paging
Code is assigned to the Primary Code and the group
Paging Code assigned to the Secondary code. The op-
erator of this equipment, can receive and initiate indi-
vidual calls to and from other subscribers and the
landline. Additionally,this equipment can be contacted
as part of the radio group.