ll SmarTrunk products are guaranteed to meet or exceed published
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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:
SmarTrunk Systems, Inc.
ATTN: Repair Department
23278 Bernhardt Street
Hayward, CA 94545, U.S.A.
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, and employees will work together for continuous improvement in
the processes and procedures which affect SmarTrunk’ s product quality and
customer service.
SmarT runkTM is a Trademark of SmarT runk Systems, Inc.
Motorola Manual Number
68P04370J43
CONTENTS
INTRODUCTION ......................................... V I I
he ST-865M3 SmarTrunk II Logic Board is a microprocessor based
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radio trunking logic board designed for use with Motorola GP68 Radio. The
ST-865M3 implements SmarTrunk II, an efficient radio channel allocation protocol. 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 operation 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
•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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Model ST-865M3 SmarTrunk II™ Logic Board
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1 • OPERATION
ubscribers already familiar with the original SmarTrunk system will find the
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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.
1.1Landline 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
in the operating area the caller will hear a ring back and the ST-865M3 will
start ringing. The subscriber answers the call by pressing the asterisk key
(*) on the microphone DTMF keypad (Push-T o-T alk (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.
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Model ST-865M3 SmarTrunk II™ Logic Board
1.2Receiving 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).
1.3Call 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.
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Table 1-1 Call Routing Codes
Routing CodeDestination
1Subscriber to Landline 1
2Subscriber to Landline 2
3Subscriber to Subscriber
4Fleet-Dispatch/Group Call
5Conventional Mode
9Mobile Operator
0Emergency
1.3.1Subscriber To Landline Call
Routing codes 1 and 2 give the subscriber access to telephone 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.
1.3.2Subscriber To Subscriber Call
1 • Operation
Routing code 3 allows the subscriber to place a call to another subscriber or group of subscribers. The call is routed
through the ST-852M and does not use the telephone system.
1.3.3Fleet 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 subscriber had used routing code 3 with the subscriber ID number 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.
1.3.4Conventional 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 conventional two-way radio operations. This feature is enabled
or disabled during initial setup of the radio. A vailability of
this mode is determined by the radio dealer supplying the
radio, or the System Operator/Manager.
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Model ST-865M3 SmarTrunk II™ Logic Board
1.3.5Mobile Operator Call
Routing code 9 calls the subscriber that is preprogrammed
as the Mobile Operator. This functions as though the subscriber had used routing code 3 with the subscriber ID number of the Mobile Operator. The Mobile Operator is programmed by the System Operator/Manager.
1.3.6Emergency Call
Routing code 0 causes the ST-852M to access line 1 and dial
the preprogrammed emergency phone number. The emergency phone number is programmed by the System Operator/Manager.
See the ST-852M SmarTrunk II Digital Trunking Controller Manual for details on programming the emergency numbers.
1.4Originating A Call
This section describes the advanced SmarTrunk II dialing methods. 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
is out of range. The subscriber must then retry the call at a later time, when
within range and a radio channel is available.
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1 • Operation
Table 1-2 and the following paragraphs summarize the advanced dialing
modes available:
Table 1-2 Dialing Modes
Dialing ModeProcedure
Store and Send Dialing(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).