Spectra Engineering MX800AB Repeater/Base Station User Manual 2 Install

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Document ID	142436
Application ID	pVyFDQgOjDdv8mRykspFJA==
Document Description	Section 2
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Document Type	User Manual
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Date Submitted	2001-03-29 00:00:00
Date Available	2001-05-18 00:00:00
Creation Date	0000-00-00 00:00:00
Producing Software	Acrobat PDFWriter 3.02 for Windows
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Document Title	2_Install.PDF
Document Creator	Microsoft Word
Document Author:	Licensed User

Technical Manual
2. Installation and Operation
2.1
2.2
Installation
MXSOO series radios are securely packed for transport with special end
packers within a pasteboard container. Before unpacking the mxsoo radio,
please inspect the packaging for signs of damage and report any damage to
your MXSOU distributor.
Upon unpacking of the MX800 radio, please ensure that all items shipped
were received. report any missing items to your MXStIt distributori
All ports on the tear of the radio should be carefully examined to ensure that
packaging has not become wedged inside them. It is very important to
examine the fan as operation of the radio will be affected if any pafiaging or
shipping damage causes the fan to stop working.
If you intend to install the radio in an equipment rack consult the suppliers
instructions for your system, Spectra Engineering recommends that the radio
be secured into the rack system using four screws through the mounting holes
in the front panel near the handles. If the radio is to be used in a stand-alone
configuration, ensure that it is in a secure, dry location with sufficient air
space around it to allow for adequate ventilation. It is recommended that the
chassis is earthed to the equipment rack.
Equipment connection details are located in Appendix 7.1. The MXSOO will
draw approximately 10A (band dependent) on transmit and the gauge of the
DC cable fitted to the 12V supply connector should be adequate to ensure
less than 0.5V volt drop at this current.
Operation
The MXSOO can operate in local control mode via the front panel controls,
stand alone repeater mode, or may be remotely controlled through the line
port. Setting up the st00 to operate in the wanted mode is straightfonvard
and involves four main steps.
1. Using the mxsoo programming utility tux-mow to set the straw-re
configurable parameters.
2. Setting the hardware jumpets on the Micro Controller for the required
options.
3. Adjusting the levels where necessary.
4. Making the necessary electrical connections to the radio and your
system.
Note that generally if the requirements have been fully specified at time of
purchase steps 1 to 3 will already have been done at the factory. In the
following sections the hardware aspects of the set up procedure are described.
Cl SPECTRA ENGINEERING 2000 Flavtsion 41“ 11
MXBOO Transceiver Technical Manual
If the set up requires a software setting a cross reference to the MXTOOLS
User Manual is quoted.
2.2.1 MXTOOLS Utility
MXTOOLS is a programming utility used to program channel data, configure
and perform remote diagnostics on the MXSOO. it runs on a PC compatible
computer and use of the program is covered by the MXTOOLS User
Handbook. This technical manual should be used in conjunction with the
MXTOOLS User Handbook
2.2.1 .1 MXSOO Networking '
At sites where more than one MXSOO is located it is possible to “bus" the
RSZ32 lines to allow up to 16 MXSOOS at one site to be addressed on a single
R5232 port. Hardware facilities provided on the MXSOO Micro controller
card provide isolation between transmit pans. When MX8003 are bussed in
this way JMP24 in each radio must be set so that
1‘ At least one radio and no more than four are set as masters
2. All other radios are set as slaves.
Refer to Table 2-1, section 2.2.2.1 for details.
In addition to this, each radio must be assigned a unique address This
address is assigned as a binary code through CN3. Four address lines are
available on input port A where bit 4 is the LSB and bit 7 is the MSB. These
lines should he pulled high or low depending upon the setting of JMP19.
Default is active low so that GND = Logic 1, Refer section 51.3.
The RSZ32 cable should be made up such that all MXSOO transmit ports
(TXD) are commoned and connected to the PC receive port (RXD) and all
MXBOO receive ports (RXD) are commoned and connected to the PC transmit
port (1703). . ~ ...;
MXTOOLS automatically polls the bussed radios to detemrine which
addresses are active when the ”Use Network" button is selected in the initial
connect screen (MXTOOLS version 2.841 or later).
Technical Manual Installation and Operation
2.2.2
2.2.2.1
Setting to Work
The following sections describe the steps necessary to set the MX800 to
operate as required,
Set Mlcro Controller Jumpers
The micro controller layout is contained in the drawings section and the
position of the jumpers and DIP switches (highlighted) are shown below. The
jumpers and switches are used for setting the general configuration of the
audio processing for both the TX and RX paths as well as various
miscellaneous functions. .
Table 2-1 below summarises the functions of the jumpers.
JMP 2
Function / Description 3; Default
Default Position
Selects either default RUN or
EMULATE mode for the micro
processor.
Enables the WATCHDOG auto
reset function in the
microprocessor.
Enabled
IMP 3
Enables or disables the PRE-
EMPHASIS for the TX audiot
IMP ¢
IMP 5
Enables or disables the
COMPRESSOR [or the TX
audio.
Enables or disables the HIGH
PASS FILTER for the RX audio.
TMP6
Enables or disables the LOW Enabled 2-3
PASS FILTER for the RX audio.
JMP7
Enables or disables the DEA Enabled 2-3
EMPHASIS processing for the
RX audit).
JMPS
Enables a direct connection to the DC-FM 12
TX modulator. Select either
Wide Band or Wide Band filtered
and limited or nil.
JMP 9
TX VF loopback COnerl. Active low 1-2
Trunking LlFUlSEN function.
The function polarity or nil can be
selected.
JMP 10
Controls the direction of the RS Swap 2-3
232 TX and RX data.
anoo Transceiver
PM? 11
Controls the direction of the RS-
Swap
Technical Manual
2-3
IMP 12
232 TX and RX data.
Trunking RX Talk functionl
Disables RX VF to line and m
VF, The function polarily or nil
can be selected.
Active 10W
JMP 13
Enables or disables the HIGH
PASS FILTER for Ihe TX audio,
Enabled
1-2
JMP14
Repeater enable. Trunking
LIFULOCEN function. The
function polarily or nil can be
selected, Note thal this control is
in parallel Wilh DIP S/W 2/3
Active low
JMPIS
Selects the connection for the
common pin on the digital l/o
connector to either ETH or + 5
volts,
ETH
JMP16
Enables or disables the Low
frequency HPF used for the
Repeater VF routing,
Enabled
IMP17
Selects the Mute / Squelch output
polarity to either normally high or
low.
Active low
JMP 18
Trunking TX Talk function
Disables TX VF to line and ‘l'l'R
VFi The function polarity or nil
Active law
1-2
1-2
SV or intemal pull down to ETH
for digital input on D25 connector
can be selected
JMP 19 Selects either internal pull up to Pull up
2»3
JMP 20
JMPZI
Selects modem discriminator
audio source.
UplianaI PCB fined
Modem audio via opt PCB:
JMP20 filled
J MPZI not fitted
Modem audio bypass opl PCB:
JMPZO not fitted
JMP21 fitted
Optional PCB not filled
Modem audio bypass opt PCB:
J MPZO fitted
JMP21 not fitted
Note in this case a link is fitted
between SK] and SKKZ
.___'_
Modem audio
d sconnected
Both links not
fitted
Technical Manual lnslallau‘ori and Operation
IMP 22
Micmphonc gain. l-'ii lhis jumper bow gain Not fined
lo increase mic gain 33m}
JMP 23
Enable lane la speaker. Fit lhis Disablwd Nat [med
jumper ll: enable lone
IMP 24
R5232 pon lzrminaliom This Nurmnl 142
jumper allows an inrernal
lemlillaliun in be selected or not
for husstd R5232 connections,
Up io 16 units may be busaed.
Normal: Non-buss“! mode.
Nn resislor fine/d, '
D10 out of circuil.
Mnsier: Bussed mode.
410 lesislor across D10.
Configure ar leasl one
and no mere lhan four
stoo in lhis mode
when muluple unils
connecled.
Slave: Bussed iuode. Dlu ruled,
no resislor. Configure
balance of bussed nnils
in this mode.
IMP 25
Mule defeat enable. Mule deieai Disabled Nol filled
cannol he used ii RX TALK line
is required. To use mute defeat
remove IMPlZ and in 1er 25.
The oonirol signal pelariiy can be
inverud by changing the posiliml
of JMPZS.
Active low oomml:
JMPZS 2-3
Active high control:
JMP25 1-2
Table 2.1 Micro Controller Jumpers
When lhe MX800 opiion card is noi fined there is no connection inade Io
SKK (Aux 2 connecror) on the micro controller, Links should be placed
across SKK1-2 (Discriminaror audio), SKKll-IZ (TX supply) and Skim-
14 (RX supply). These links are normally filled in ploduclion.
® SPECTRA ENGINEERING 2000 Revision 4.01 ‘5
mxaoo Transceiver Technical Manual '
2.2.2.2 Select Operating Mode
The MXSOO can operate in a number of different modes. The primary
alternatives are full duplex, which is the default mode, repeater and simplex.
Using MXTOOLS the operating mode is programmed for each channel.
When a channel is selected in operation the MXSOO adopts the mode
programmed for that channel.
The operating mode programmed in the software can be modified by the
settings of DIP switch 2. The functions of this switch are detailed in
Table 2-2 below.
Enables SOmS delay of PTT for
use with simplex function.
Simplex Enable Enables simplex function‘
Sets programmable TX time out
timer on
Repeater Enable Enables repeater function‘
TX VCO on continuously Switches TX VCO on
continuously
Sean on Selects the receiver to enable the
scanning of programmed scan
channels
Table 2-2 DIP Switch 2 Settings
Note The Repeater Enable functions as follows:
If the switch is ON and the channel is programmed as a repeater channel
(using MXTOOLS) the MXSOO will act as a repeater. If the switch is OFF
the MX800 will remain in full duplex mode even if the channel is
programmed as a repeater. The Simplex Enable operates in a similar way.
In the case of the Repeater Enable function, the Repeater Enable on Pin 8 of
the DBIS Line connector is effectively in parallel with SW2/4. if SW2/4 is
OFF the function may be controlled through this external line. JMP 14
selects the control polarity in that case.
Technical Manual Installation and Operation
2.2.2.3
Select Operating Channel
The MXSOD has a channel capacity of 255. The RF and CTCSS frequencies
for each channel are programmed using MXTOOLS Channel Information
screen. There are four ways of selecting the operating channel.
1.
2.2.2.4
DIP Switch S-way. DIP switch SW1 provides a binary channel selection
facility, When a switch is ON it is read as a logical 1. When all switches
are off the software channel select mode is enabled.
Rear channel seIecrport. Digital input port B provides an 8 way Binary
or BCD channel select input, Binary or BCD coding is selected using
MXTOOLS. If Binary is selected 255 channels are accessible. If BCD is
selected 99 channels are accessible.
Software channel select. If DIP switch SWIis set to 0 then it is possible
to send a software command to the radio to select the channel.
Front panel Push-wheel switches. If this option is fitted the rear channel
select port is internally wired to the Push—wheel switches however the
rear channel select function is still in parallel with the Push-wheel. The
rear select method should not be used in this case. The 99 channels are
selectable on the front panel. The same rules apply to this channel select
method as apply to the rear port described below.
following rules apply.
DIP switch SW1 has priority. If DIP switch SW1 is not set to 0 the rear
inputs and the software command will be ignored.
If DIP switch SW1 is set to 0 then both the software commands and the
rear input port will select the channel, In this case the most recent event
will take priority. For example, if the rear input port is set to CHIO and a
software command arrives to send it to CH15, the radio will go to CHIS.
If the rear input port is now changed to CHI] the radio will switch to
CH1 1.
If DIP switch SW1 is set to 0 and the radio is powered up the channel
selected on the rear port will be adopted.
If DIP switch SW1 and the rear port are both set to O, on power up, the
radio will adopt the last software channel selected. This may be the
software channel set at the factory if the user has not used the software
channel select feature.
Configure Alarms/M Lead
The MXSOO has 3 open collector outputs. Two of these are assigned as alarm
outputs and one (output I) may be configured as either an alarm output or an
M Lead output, If the output one is configured as an M Lead, this line is
active when mute is open and CT CSS/DCS is decoded. These outputs are
assigned in the Configuration screen of MXTOOLS.
stoo Transceiver Technical Manual
2.2.2.5 Configure Dlgital I/O
The M'XSOO has 16 digital inputs and 8 general»purpose outputs. The inputs
are +5V CMOS logic compatible and are buffered by a 10K resistor in series
with each input. JMP19 on the Micro-Controller selects whether these inputs
are internally pulled up or internally pulled low. The active state of the input
is set up through MXTOOLS. Of the 16 inputs the 8 input port B inputs are
allocated to the Channel Select function. Two of the input port A inputs (bit 0
and bit 1) are allocated to a power control function (see Table 2—3 below),
two (bit 2 RX and bit 3 TX) are allocated to CFCSS control and the other 4
are allocated as address bits for the MXSOO network mode (software V2.8.1
and higher).
Table 2-3 Power Control Function Settings
An auxiliary voltage (either +5V or GND dependant upon the setting of
JMPIS) is available on CN3 pin one for wiring convenience.
The 8 general-purpose outputs are +5V CMOS logic compatible and are
buffered by a series 1K resistor.
2.2.3 Adjustments
There are two categories of adjustable parameters in the MXSOO. Those that
are controlled by conventional potentiometers, which may be manually
adjusted, and those controlled by digital potentiometers which are under the
control of the Micro Controller. The latter category of items comprises TX
power, TX VCO deviation, TX reference oscillator deviation and TX
reference oscillator frequency. All of these are adjusted with the aid of
MXTOOLS and all except TX power should only be adjusted as a part of a
full TX VF path alignment procedure
Following adjustment of a digipot controlled parameter the value must then
be saved to the radio to make the change permanent.
Refer to section 5 ‘Alignment and Testing‘ for details.

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Creator                         : Microsoft Word
Create Date                     : Thursday, March 29, 2001 9:46:21 PM
Title                           : 2_Install.PDF
Author                          : Licensed User
Producer                        : Acrobat PDFWriter 3.02 for Windows
Subject                         : 

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