Ericsson M-PA EDACS Operator's Manual

Operator’s Manual

LBI-38574B

E

M-PA



EDACS



900 MHz

SELECT, SCAN, & SYSTEM

PERSONAL RADIOS

TABLE OF CONTENTS

Page

INTRODUCTION . . . . . . . . 6

OPERATING

NOMENCLATURE . . . . . . . 6

CONVENTIONAL

OPERATION . . . . . . . . . 6

TALK-AROUND

OPERATION . . . . . . . . . 6

TRUNKED OPERATION . . . 7

SYSTEM (AREA) . . . . . . . 7

GROUP OR SUBFLEET . . . 7

FLEET . . . . . . . . . . . . 7

AGENCY . . . . . . . . . . . 7

CONTROLS, DISPLAYS AND

CONNECTORS . . . . . . . . . 8

This ma nual is published by
warranty. Improvement s and ch anges t o this ma nual ne­cessitated by typographical errors, inaccuracies of cur­rent information, or improvements to programs and/or
equipment , may be made by
and without notice. Such changes will be incorporated
into new e ditions of this manual. No par t of this manual
may be repro duced or tran smitte d in any form or by any
means, el ectronic or mechanical, including photocopying
and record ing, for any pur pos e, wit hout the express writ­ten permission of

Copyright© April 1991, Ericsson GE Mobile Communications, Inc.

Ericsson Inc.

Ericsson Inc.

Ericsson Inc.

, without any

, at any time

CONTROLS . . . . . . . . . . 8

4 KEY CONTROL . . . . . . . 9

SECOND FUNCTION

CONTROL . . . . . . . . . . . 11

DISPLAYS . . . . . . . . . . . 13

UNIVERSAL DEVICE

CONNECTOR (UDC) . . . . . 15

OPERATION . . . . . . . . . . . 15

SELF-TEST . . . . . . . . . . 15

CARRIER CONTROL

TIMER . . . . . . . . . . . . 16

TRUNKED MODE

OPERATION . . . . . . . . . . . 16

RECEIVING A

MESSAGE . . . . . . . . . . . 16

SENDING A

MESSAGE . . . . . . . . . . . 17

EMERGENCY

OPERATION . . . . . . . . . . 17

WIDE AREA ENCODE . . . . 18

TELEPHONE

INTERCONNECT . . . . . . . . 18

BASE/UNIT OPERATION . . . 18

INDIVIDUAL CALL . . . . . . 19

SYSTEM SCAN . . . . . . . . 19

2

TABLE OF CONTENTS - Cont.

Page
WIDE AREA

SYSTEM SCAN . . . . . . . 19

GROUP SCAN

OPERATION . . . . . . . . . 19

GROUP SCAN ­MULTIGROUP

DECODE . . . . . . . . . . . 20

PRIORITY GROUP

SCAN . . . . . . . . . . . . . 20

SPECIAL CALL . . . . . . . 21

TELEPHONE

INTERCONNECT . . . . . . 23

CONVENTIONAL

OPERATION . . . . . . . . . . 26

RECEIVING A MESSAGE . . 26
SENDING A MESSAGE . . . 26

ALERT TONES . . . . . . . . . 27

SELF CHECK TEST . . . . . 27

CALL RECEIVED . . . . . . 27

CALL ORIGINATE . . . . . . 27

CALL QUEUED . . . . . . . 27

AUTOKEY . . . . . . . . . . 28

SYSTEM BUSY . . . . . . . 28

CALL DENIED . . . . . . . . 28

UNIT DISABLED . . . . . . . 28

OUT OF RANGE/SYSTEM

INOPERATIVE . . . . . . . . . 29

CARRIER CONTROL TIMER . 29

LOW BATTERY ALERT . . . . 29

KEY PRESS ALERT . . . . . 29

OPERATING TIPS . . . . . . . . 30

OPERATING PROCEDURES . . 30

REPLACEMENT OF

BATTERY PACKS . . . . . . . 32

INTRINSICALLY SAFE USAGE . 32

BATTERY PACKS . . . . . . . 33

AUDIO ACCESSORIES . . . . 34

RECHARGING BATTERY

PACKS . . . . . . . . . . . . . . 34

REDUCED CAPACITY IN

RECHARGEABLE

BATTERIES: . . . . . . . . . . 34

RECHARGEABLE BATTERY

PACK DISPOSAL . . . . . . . 35

REMOVAL AND
REPLA CEM ENT OF THE

SWIVEL MOUNT . . . . . . . . 36

WARRANTY . . . . . . . . . . . 38

NICKEL-CADMIUM

BATTERY WARRANTY . . . . . 39

3

M-PA SELECT

M-PA SCAN

Figure 1A - M-PA EDACS Personal Radio

4

M-PA SYSTEM

SIDE VIEW

Figure 1B - M-PA EDACS Personal Radio

5

It is housed in a rugged aluminum
case equ ipped with an easy to read al­phanumer ic disp lay providing operating
information and radio status. The con­trols include top mounted rotary Volume
and Control knobs, four Function keys
and a keypad. A recessed Emergency
button permits the use of a single but­ton in sending emergency calls.

OPERATING NOMENCLATURE

CONVENTIONAL OPERATION

Figure 2 - M-PA EDACS System

Personal Radio (Top View)

INTRODUCTION

This manual describes how to use
the M-PA EDACS S yst em Personal Ra-
dios. The M-PA EDACS Select, Scan,
and System Personal Radios are field
programmable microprocessor control­led portable radio designed for Digital
Trunkin g and Co nventional communica­tions.

6

All units on a conventional system
operate through the same radio re­peater. Trunked features (such as call
queuing and system scan) a re no t a v ai l­able in conventional mode.

TALK-AROUND OPERATION

Also referred to as “direct mode”,
talk-around provides a direct unit-to-unit
short range communications link. It is
intended to maintain communications

outside of the main system coverage
area.

TRUNKED OPERATION

Trunked Operation refers to the use
of a set of radio frequency channels by
multiple user groups. By using high
speed digital data your M-PA EDACS
radio goes t o an unused channel when
a call is initiated and will also only re­spond to calls in the same user group.
In this way conversation privacy be­tween user groups is assured.

SYSTEM (AREA) (Trunked operation
only)

The terms "system" and "areas" are
used interchangeably to refer to the
particular group of station repeaters
curren tly providing service to the radio.
Radios c an be preprogrammed to work
in different systems by changing the
CONTROL Knob position or by press­ing the STEP button (for SCAN and

SYSTEM models) depending on radio
programming. (e.g., different systems in
different cities).

GROUP OR SUBFLEET
(Trunked Operation Only)

A group of users share the same
preprogrammed group identification
number in the ir mobile and portable ra­dios. All units in the s ame gr oup will r e­ceive a di spatc h ca ll placed by any one
unit in the group.

FLEET (Trunked Operation Only)

A fleet of us ers consist s of multiple
groups (subfleets). Radios can be pre­programmed to make fleet calls to si­multaneously access multiple user
groups.

AGENCY (Trunked Operation Only)

An agen cy is composed of multiple
fleets. Units can be preprogrammed to

7

initiate agency calls to access multiple
fleets.

receive volume to the
desired listening level.

CONTROLS, DISPLAYS AND

CONNECTORS

CONTROLS
ON/OFF The Power ON/OFF

slide switch located on
the side of the battery
pack controls power
from the batter y pack to
the radio. Sliding the
switch up turns on the
radio and exposes the
yellow "ON" indicator.
This will also initiate the
personality self-test.
Sliding the switch down
turns the radio off.

MONITOR In the Trunked mode,

pressing the MONITOR
button enables non-su­pervisory users to clear
message trunked indi­vidual c alls, enter ed dig­its, and interconnect
calls. Supervisory units
may clear any call re­gardless of type, trans­mission or message
trunked. The MONITOR
button is also used to
clear any currently active
callback Status for both
supervisors and non-su­pervisors.

VOLUME The VOLUME Control

Knob, located o n the top
of the radio, adjusts the

8

In the Conventional
mode, the receiver may
be unsquelched by
pressing and holding the

MONITOR button. This
perm its the use r to li sten
to the receiver and ad­just the volume control
to the desired level.
When the button is re­leased, the radio mutes
unless a carrier and
channel guard (if en­abled) were detected in
the interim.

EMERGENCYThe EMERGENCY but-

(Trunked
mode only)

ton is used to initiate an
emergency call on the
programmed home
group or on the selected
group if no home group
is programmed.

4 KEY CONTROL
(SCAN and SYSTEM MODELS)

CONTROL
KNOB AND

T

System Selection ­System selection is ac­complished with either

the Control knob or the
STEP key depe nding on
the pers onality program­ming. If the Control knob
is used for System
change, rotating the
knob will change Sys­tems.

If the STEP key is used
for System change, then
pressing the STEP key
will take the radio to the
next system. Pressing
2nd the n STEP will take
the radio to the previous
System. Holding down
the STEP key will result
in repeated operation.
Upon reaching the end
of the System list, the
radio can be pro­grammed to stop or
wrap around to the end
of the list.

9

Selection may also be
made by entering the
system number and
pressing the STEP key
(System model only).

Group/Channel Selec­tion -Group selection is

accomplished with either
the Control knob or the
STEP key, depending on
the pers onality program­ming. If the Control knob
is used for Group
change, rotating the
knob will change
Groups.

Group. Upon reaching
the end of the Group list
the radio can be pro­grammed to stop or
wrap around to the other
end of the list. Selection
may also be made by
entering the group num­ber and pressing the
STEP key (System
mode only).

10

If the STEP key is used
for Group change, then
pressing the STEP key
will take the radio to the
next Group. Pressing
2nd the n STEP will take
the radio to the previous

Figure 3 - M-PA System Keypad

S

P

The SCAN key turns
Scan operation on or off.

The Special Call (SPC)
key switches operation
between the Group Se­lect Mode and the Spe­cial Ca ll mode. Up to 24
special call unless can
be programmed into the
special call set for a
given system (up to 4
sets with 24 special call
entries per radio). The
STEP key is used to
scroll through the list.

SECOND FUNCTION CONTROL
(SCAN And SYSTEM MODELS ONLY)

A/D Pressing the 2nd key fol-

lowed by the Add/Delete
key (A/D) flags the se­lected group for scan or
deletes the group from
the Scan list.

LOCK Press in g t he 2nd key fol-

lowed by the LOCK key
makes the keypad inop­erative, thus preventing
accidental key activation.
Repeating this operation
reenables the keypad.

Selection may also be
made by entering the
Special call entry num­ber and pressing the
SPC key. (Syst em model
only).

SECOND FUNCTION CONTROL
(SYSTEM MODEL ONLY)

The system keypad provides addi­tional capabilities. These capabilities in­clude storage and recall of up to 10
telephone numbers and 10 radio identi­fication numbers, manually sending a

11

telephone interconnect call, manually
initiating an individual radio call, and
quick selection of spec ial calls and Sys­tems or groups.

1

The storage function al­lows you to store a tele­phone number or radio
ID number.

16382) followed by a
pound sign (#) control
character. Next enter the
storage location (1 to 10)
and press the 2nd and
STO keys. The LCD dis­plays "STORED" for 2
seconds and returns to
its previous state.

12

To store a telephone
number, enter the tele­phone num ber (up to 29
digits) followed by an as­terisk (*) control charac­ter. Next enter the
storage location (1 to 10)
and press the 2nd and
STO keys. The LCD dis­plays "STORED" for 2
seconds and returns to
its previous state.

To store an in div idua l ra­dio ID number, enter the
ID number (from 1 to

3

The recall function al­lows you to recall a tele­phone number or radio
ID number previously
stored u sing the storage
function. To recall a num­ber, first enter the con­trol digit (* or #) to
indicate whether you are
recalling a telephone
number or a radio ID
number. Next enter the
storage location (1 to

10). Pressing the 2nd
and RCL keys com-

pletes the process and
the telep ho ne number or
radio ID number is dis­played on the LCD.
Pressing only the 2nd
and RCL keys without
specifying the recall type
or location will recall the
last number that was
stored or recalled.

DISPLAYS

The radio’s Liquid Crystal Display
(LCD) p anel, located on the front of the
radio, provides the use r with an 8 char­acter alphanumeric display and twelve
radio st atus flags located along the top
and bottom of the display panel.

#

Pressing the 2nd key fol­lowed by the CLR key
allows you to clear the
last digit entered from
the keypad. If you are
clearing the first digit,
then the display will re­turn to its previous state.
Holding CLR down re­sults in repeated opera­tion.

The alphanumeric display provides
the user with infor mation relating to the
identification of a received or transmitter
call.

The status flags indicate the vari­ous operating characteristics of the ra­dio. Only the active flags are displayed.
An explanatio n of the flags is given be­low.

13

EMG Emergen cy indicator - In

trunked mode, the flag is
on steady when the user
initiates or receives an
emergency call.

NC No Control channel -

Steady display indicates
no tru nked control c han­nel. Flashing indicates
trunked syst em is in fail­soft (supervisory radios
only).

HI High Power status flag -

On indicates the radio is
programmed to transmit
at high power. Off indi­cates low power.

MSG Message - A flashing

message flag indicates
an individual call has
been received but not

responded to (trunked
mode).

CNV Conventional Mode -

flag indicates that the ra­dio is operating in the
confessional mode.

SPC Sp ecial Ca ll - The flag is

displayed when the Spe­cial Call mode is se­lected (trunked mode).

TX Transmit Status flag -

Flag is on when the ra­dio is transmitting.

BSY Channel Busy indicator -

In the Trunked mode, on
indicates the radio is re­ceiving a call. In the
Conventional mode, on
indicates a carrier is pre­sent.

14

CG Channel Guard - Dis-

played when Channel
Guard is enabled on the
selected conventional
channel.

External Microphone

External Earphone

External Speaker/Mic

Vehicular Charger

BAT Batter y low - This status

flag indic ates the batter y
pack needs recharging.

S Scan Lis t - Indicates the

selected group/channel
is in the scan list.

SCN Scan - Ind icates radio is

in the Scan mode.

UNIVERSAL DEVICE CONNECTOR
(UDC)

The Universal Device Connector
(UDC) is located on the sid e of the ra­dio above the PTT bar. The M-PA
EDACS radio su ppor t up to 1 6 external
devices. Some of these devices are:

Emergency Lanyard

The UDC is also used by mainte­nance personnel for programming the
radio.

OPERATION

SELF-TEST

During the power-up sequence, the
radio performs a Personality self-test.
During this test, the radio executes a
set of preprogrammed instructions. At
the star t of the test all segments of the
LCD will be momentarily displayed.

When the radio passes the self­test, it will begin operation on the se­lected System.

15

If the ra dio fails the self-test, an er­ror condition exists and the message
"PERS ERR" will be displayed and a
failure tone is sounded. If this happens,
the radio requires reprogramming or
servicing. A short tone or beep is
sounded if the radio passes the self­test.

CARRIER CONTROL TIMER
(If programmed)

TRUNKED MODE OPERATION

RECEIVING A MESSAGE

1. Slide the ON/OFF switch on the

battery pack to the ON position.
The radio initiates and com­pletes the self-test after which
the System name and "NC"
Status flag are dis played. When
the system control channel is lo­cated, the "NC" flag disappears
and the group name is dis­played.

2. Set the VOLUME Cont rol to mid
range.

This feature unkeys the transmitter
if the use r exceeds the pre pro grammed
time for continuous transmission and
produces a beeping tone in the speaker
until the PTT switch is released. Re­leasing PTT resets the timer.

16

3. Use the CONTROL Knob or
STEP key to select the desired

System and/or group (depend­ing on programming). The dis­play indicates the selected
group name.

4. The radio is now ready to re­ceive messages.

GROUP CALL - Whe n the radio

5.

receives a group call, it unsquel­ches on the assigned channel
and lights the "BSY" flag. The
Group name or originator’s ID
(depending on programming) is
displayed.

INDIVIDUAL CALL - If an indi-

6.

vidual call (call directed only to
your radio ) is rec eived, the radio
unsquelches on the assigned
channel and the "BSY" flag
lights. The message "*INDV*" or
originator’s ID is displayed.

If you respond to the call prior to
the programmed call-back time-out,
your call will automatically be directed
to the originating unit.

SENDING A MESSAGE

1. Turn the radio on, set the re-

ceive audio l evel, and select the
desired group as described un­der TO RECEIVE A MESSAGE.

2. Observe the display for the ab­sence of the "BSY" indicator to
ensure that no one is transmit­ting on the selected group.

3. Pre ss and h old the PTT bar, the
radio will pe rform the nec essary
signaling required to obtain a
communication channel.

4. Wh en the channe l ha s been ac­quired, the "TX" and "BSY"
flags are displayed and the
channel access tone is heard.

5. Hold the radio about three
inches from your mouth and
speak normally.

17

6. Release the PTT bar when the

transmission is complete, and
listen for any reply.

2. Press the PTT bar, and speak
into the mic rophone in a nor mal
voice.

EMERGENCY OPERATION
Receiving an Emergency Call

1. When the radio receives an

Emergency Channel Assign­ment, the "EMG" flag is dis­played. Follow your standard
emergency procedures.

Sending an Emergency Call

1. For emergency transmission,

press and hold the EMER­GENCY button for approxi­mately one second. The radio
transmits an emergency call
message until an Emergency
Channel Assignment is re­ceived. Upon receipt the "EMG"
flag is displayed.

3. Release the PTT bar when the
transmission is complete and lis­ten for a reply.

4. When the radio receives a nor­mal group channel assignment,
it will return to the group pre­viously selected.

WIDE AREA ENCODE

This pre pro gra mmed option insures
all system scanning mobiles and port­ables have time to lock onto the call be­fore the in itiating u nit is all owed to talk.
A three t one ale r t and a shor t delay will
be notice d after keying the un it and be­fore the call originate beep is heard.
This delay occurs only at the first call
transaction, all conversation immedi­ately following will operate at normal
system speed. The delay length will

18

vary depending on system operating
parameters.

TELEPHONE INTERCONNECT

This feature al lows you to initiate or
receive telephone calls through your ra­dio if the system is configured for this
operation.

identif ication co de. A mobile or portable
unit can call another particular unit by
programming the receiving unit’s ID into
his radio’s special call set for that sys­tem. Each special call may be select­able and accessed through the
CONTROL knob (depending on radio
programming) or through the SPC key
(SCAN and SYSTEM models).

BASE/UNIT OPERATION

This prepro gramm ed option is used
in some fleets so units can only hear
and talk t o a base dispatch unit, not to
other mobiles or portables in the group.
In this mode of operation, when a unit
in a particular group is talking to the
base dispatch unit, all other mobiles
and por tables i n that group will receive
a "System Busy" tone if they try to ac­cess the system.

INDIVIDUAL CALL

Every radio in the system is pre­programmed with a unique individual

SYSTEM SCAN

The radio can be preprogrammed
to scan (m onit or acti vity on ) up to three
separate trunked systems and receive
calls on any of these systems.

WIDE AREA SYSTEM SCAN

The unit may be programmed with
a predef ined scan list so that if the cur­rent system is lost, the radio will auto­matically search out and lock to the
next available system in its scan list. If
enabled, the radio will login to the new
system once acquired.

19

GROUP SCAN OPERATION

The scan operation is enabled by
pressing the SCAN key, turning on the
"SCN" status flag.

When a group in the scan list re­ceives a ch annel assignment, the radio
unsquelches on the assigned channel
and displ ays the gr oup name. If the ra­dio detects a selected group call, it will
switch to the selected group call and
display the selected group name.

Pressing the PTT while in scan
causes the radio to place the call on the
selected group, as described under TO
SEND A ME SSAGE.

Press the SCAN key to disable
scan operation, the "SCN" flag turns off
and the rad io resumes operation on the
selected group.

GROUP SCAN - MULTIGROUP DE­CODE (Trunked Operation Only)

This radio can be preprogrammed
to monitor up to 48 se parate groups si­multaneously (multi-group decode),
perm itting the user to both monitor and
receive calls from these groups. When a
radio receives a call from one of these
groups, it will "loc k out", a nd no t send or
receive messages from other groups for
a preprogrammed period of 5, 10 or 15
seconds, permitting the user to respond
to the group call. (The radio may also
be preprogrammed for no lock out pe­riod). At the end of the "lock out" period,
the radio s ounds two short low pitched
"beeps" and is a gain ready to receive a
call from any of the preprogrammed
groups.

PRIORITY GROUP SCAN

20

If enabled on the radio by the PC
Programmer, Priority Group Scan al­lows the u s er to s ca n up to 48 separate

groups simu lt an eously, with one level of
priority. When the user is receiving a
non-priority group call and a call from
the prior ity group is detected by the ra­dio, the unit will automatically switch to
the priority group call in process.

The priority group call can be de­fined via the PC Programmer as either
a predetermined group or the currently
selected group.

Adding T o Scan
(System and Scan Models Only)

3. Press 2nd then A/D keys turn-

ing on the "S" flag, the dis­played group is now in t he scan
list.

Deleting From Scan
(System and Scan Models Only)

Delete groups from the scan list as

follows:

1. Press the SCAN key if the
"SCN" status flag is on, to turn

scan function off.

Set up (o r add to) the grou ps to be

scanned as follows:

1. Press the SCAN key if the
"SCN" status flag is on, to turn

off scan function.

2. Select the group to be added
using the STEP key or CON-

TROL knob.

2. Select the group to be deleted
using the STEP key or CON­TROL knob.

NOTE

If 2nd - A/D keys are pressed
while receiving a scanned call,
the group will be deleted from
the scan list.

21

3. Press 2nd then A/D keys turn-
ing off the "S" flag, the dis­played group is deleted from the
scan list.

Follow the instructions for sending a
special call.

Sending A Special Call

SPECIAL CALL
Receiving An Individual Call

When an individual call (call di­rected only to your radio) is received,
the radio u nsquelches on the assigned
channel with the "BSY" flag displayed.
The message "*INDV*" originator’s ID,
or caller’s name is displayed and the
"MSG" flag flashes.

If you respond to the call prior to
the programmed call-back time-out,
your call will automatically be directed
to the originating unit. If you don’t call
back before the call-back time-out, the
"MSG" will remain flashing. To call the
calling u nit back, press SPC. The origi­nator’s ID or name will be displayed.

You may make Special Calls with
your radio t hrough th e Specia l Call fea­ture. Use the following procedure to in­itiate and complete a Special Call:

1. To make a selection from the
special menu, press and release
the SPC key. An alert tone
sounds, the "SPC" flag lights
and the display changes from
the sele cted group to one of the
special call displays. If no spe­cial calls are programmed, the
display indicates "NO SP C" and
the trunked failure tone sounds.

Press the STEP or 2nd-STEP
keys to scroll through the spe­cial call menu until the desired
Special Call name appears in
the display.

22

2. Press and hold the PTT bar. The
radio performs the necessary
signaling required to obtain a
communication channel. When
the signaling is complete and
the radio is c lear to transmit, the
"TX" flag turns on and the chan­nel access tone sounds.

3. Release the PTT bar when you
are done tal kin g, an d listen for a
reply.

4. When the call is finis hed, the ra­dio remains in the Special Call
menu for a programmed amount
of time. To return to the group
selection, press and release the
SPC key. The radio switches to
the previously selected group.

pad or re call a previously stored
number using the recall function.
The numbe r is displayed on the
LCD.

2. Press and hold the PTT bar. The
radio performs the necessary
signaling required to obtain a
communication channel. When
the signaling is complete, the
"TX" flag l ights a nd the channel
access tone sounds indicating
you are clear to transmit.

3. Speak into the microphone in a
normal voice.

4. Release the PTT bar when
transmission is completed, and
listen for a reply.

Manual Call From Keypad
(System Model Only)

1. En ter the individual radio’s iden-

tification number from the key-

5. Wh en the call is co mpleted, the
LCD w ill c ontinue to display the
radio’s ID until the Special Call
Time-out expires. To return to
the group selection, press and

23

release the SPC key. The radio
switches to the previously se­lected group.

TELEPHONE INTERCONNECT

Yo u may make telephone calls with
your radio t hrough th e Specia l Call fea­ture. Use the following procedure to in­itiate and complete telephone calls:

1. Pre ss and release the SPC key.
The alert tone sounds, the
"SPC" flag lights and the dis­play changes from the selected
group to one of the special call
displays.

2. Press the STEP or 2nd-STEP
keys to scroll through the spe­cial menu, until the desired tele­phone interconnect display
appears.

3. Pre ss and release the PTT bar.
The radio performs the neces­sary signaling required to obtain

a communication channel. When
the signaling is complete, the
"BSY" flag turns on and the
channel access tone sounds.

4. Press the PTT bar to speak.

5. To hang-up, press and release

the SPC key. Pressing the
MONITOR button also hangs up
the call and returns radio to
group menu.

Manual T elephone Inter connect
(System Model Only)

1. Enter the telephone number

from the keypa d. The number is
displayed on the LCD. You can
enter up to 31 digits with the last
eight (8) digits displayed. The
last digi t ent ered must be an as­terisk (*), indicating the digits
entered are for an interconnect
call. You may also call up a pre-

24

viously s tored number using the
recall function.

2. Send the number by pressing
the PTT bar.

The radio performs the neces­sary signaling required to obtain
a working channel. When the
signaling is successfully com­pleted the "BSY" flag lights, the
channel access tone sounds
and the radi o enters the receive
mode.

If the interconnect signaling is
unsuccessful, the radio returns
to the idle mode and the number
remains displ ayed until the Spe­cial Call Time-out expires or an­other group or system is
selected.

3. When someone answers, press
the PTT bar and speak directly
into the grille on the radio. Re-

lease the PTT bar as soon as
you stop talking. Messages can
not be received when the PTT
bar is pressed.

4. When the conversation is com­pleted, press the SPC to termi­nate the inter-connection (or
MON/ CLR).

Credit Card Call (System Model
Only)

1. Place a call to the long distance

carrier’s local access number
using the manual interconnect
procedure.

2. When the carrier’s access tone
is heard, enter your credit card
number and press the PTT bar.
The digits are erased from the
display after they are transmit­ted. You may also send the digits
one at a time by pressing the
PTT after entering each digit.

25

3. Continue the call using the man-

ual interconnect call procedures.

VOLUME Control Knob for the
desired listening level.

If the DTMF tones are not rec­ognized, terminate the call by
pressing the SPC key and re­peat the process. If the problem
persists, verify software and
hardware associated with DTMF
overdial is operational.

CONVENTIONAL OPERATION

In the Co nventional mode, the user
may select a channel programmed for
conventional use and then communi­cate on that channel.

RECEIVING A MESSAGE

1. Us e the CONTROL Knob to se-

lect the desired oper ating chan­nel.

2. Press the MONITOR button to
disable squelch. Then adjust the

3. The radio is now ready to re­ceive messages.

SENDING A MESSAGE

1. Tur n the radio on, set the audio

level, and select the desired
channe l as descr ibed under RE-

CEIVING A MESSAGE.

2. Observe the display for the ab-

sence of the "BSY" indicator to
ensure that no one is transmit­ting on the selected channel.
NEVER interrupt another trans­mission .

3. Pre ss and h old the PTT bar, the
"TX" flag is displayed. Speak

into the mic rophone in a nor mal
voice. Release the PTT bar
when finished talking, the "TX"
flag goes out and radio returns
to the receive mode.

26

ALERT T ONES

This section contains a glossary of
the alert tones and their associated
functions used in your M-PA System.

SELF CHECK TEST
(Trunked and Conventional Modes)

You should hear one short tone or
"beep" shortly after you turn the radio
on. This alert indicates that your radio
has passed a SELF CHECK test, and is
ready for you to send and receive mes­sages. (NOTE: This alert can be dis­abled by the PC Programmer.)

CALL RECEIVED
(Trunked Operation Only)

A single alert tone is sounded when
you receive a group call. A two tone
aler t is so unded (one high and one low
tone) for an individual call.

CALL ORIGINATE
(Trunked Operation Only)

A short alert tone is sounded when­ever you key the unit, (Push-To-Talk
switch is pressed), indicating that your
radio has ac q ui r ed a voice channel. You
can begin sending your message im­mediately following the tone.

NOTE

The radio can be preprogrammed to
mute the Call Originate and/or Call
Received alert tones. Individual re­ceive alerts cannot be disabled.

CALL QUEUED (Trunked Operation
Only)

If you hear two short, high pitched
tones (beeps) after you key the unit, the
system has placed your request in the
queue. The receiving unit(s) also hear
the to nes, indicating they will receive a
call sho rt ly. If you keep your unit keyed,
your radio will continue to sound the
queue be ep s un ti l t he queue is c lear ed.

27

If you should release the PTT button
while in queue, your radio will autokey
whenever a cha nnel becomes available
(see AUTOKEY).

AUTOKEY (Trunked Operation Only)

press the PTT switch. Releasing the
PTT and rekeying init iates a new chan­nel request.

CALL DENIED (Trunked Operation
Only)

When you are placed in queue, the
repeater station calls your unit when a
channel becomes available and auto­matically keys your transmitter
(autokey) for a short period of time
holding the channel for you. When you
hear the call alert tone, immediately
press the PTT switch to keep the chan­nel and send your message.

SYSTEM BUSY (Trunked Operation
Only)

If you key the radio and hear four
shor t, low pitched tones, the system is
busy (no channels are available at this
time for sending messages, and the
waiting queue is full). The busy tone se­quence will be repeated as long as you

If you hear five long low pitched
tones when you key the radio, you are
not a valid user on the sy stem you have
selected.

UNIT DISABLED
(Trunked Operation Only)

When the PTT switch is pressed,
you will hear a continuous low pitched
tone if you r radio has been disabled by
the system. You will not be able to send
or receive any messages until the sys­tem re-enables your radio. See your
system operator for more information.

28

OUT OF RANGE/SYSTEM IN OPERA­TIVE (Trunked Operation Only)

resets t he timer and turns the transmit­ter back on.

Repeated short low pitched tones
heard imme di ately after you key the u n i t
indicates your unit is out of the re­peater’s range. These are the same
tones you would hear if you pressed the
MONITOR push-button. If you hear
these "beeps" when you know you are
in range, the s ystem may be off the air
or your portable unit may need servic­ing.

CARRIER CONTROL TIMER
(Trunked and Conventional Modes)

The Carrier Control Timer aler t is a
long low pitched tone. You will hear the
tone if you excee d the preprogrammed
time for continuous transmission. The
transmitter will shut down shortly after
you hear the tone, interrupting commu­nications. To maintain communications.
release an d re - key the P T T button. This

LOW BATTERY ALERT
(Trunked and Conventional Modes)

If you key the radio and hear a low
pitched, long repeating tone and the
"BAT" flag is on, the battery is dis­charged and the radio will not transmit
your message. However, the radio will
still be able to receive messages until
the battery is discharged beyond the
point of operation. Replace or recharge
the battery to resume normal operation.

KEY PRESS ALERT
(Trunked and Conventional Modes)

A short tone or "beep" is sounded
to indicate a key has been pressed. If a
shor t low pitched tone is heard after a
key is press ed, this indi cates no action
was taken and a failure occurred.

29

OPERA TING TIPS

OPERATING PROCEDURES

The following conditions tend to re­duce the effective range of two-way ra­dios and should be avoided whenever
possible.

•• Operating the radio in low areas

of terrain or while under power
lines or bridges.

•• Operating the radio inside of a

vehicle or in a metal or steel
framed building unless using an
outside antenna.

•• Obstructions such as mountains

or buildings between the person
sending and the person receiving
the messages.

In areas where transmission or re­ception is poor, some improvements
may be obtained by insuring that the
antenna is vertical. Moving a few yards
in another direction or moving to a
higher el evation may also improve com­munication.

Two-way FM radio systems must
be operated in accordance with the
rules and regulations of the Federal
Communications Commission (FCC).
As an operator of two-way radio
equipment, you must he thoroughly
familiar with the rules that apply to
your particular type of radio opera­tion. Following these rules will help
eliminate confusion and will assure
the most efficient use of existing ra­dio channels. This will result in a
smoothly functioning radio network.

When using your two-way radio, re­member these rules:

1. It’s a violation of FCC rules to in­terrupt any distress or emer­gency message. As your radio
operates in muc h the same way
as a telephone "party line", al­ways listen and/or observe the
absence of the "BSY" flag to

30

make sure that the li ne is clear.
If someone is sending an emer­gency me s sage -such as r eport­ing a fire, or asking for help in
an accident - KEEP OFF THE
AIR! Emergency calls have pri­ority over all other messages.

5. Using your radio to send per­sonal messages (except in an
emergency) is a violation of
FCC rules. You may send only
those messages that are essen­tial for the operation of your
business.

2. Use of profane or obscene lan­guage is prohibited by federal
law.

3. It is against the law to send false
call letters, or false distress or
emergency messages.

4. The FCC requires that you keep
conversations brief and confine
them to business. To save time,
use code d messages whenever
poss ible.

6. It is against federal law to repeat
or otherwise make known any­thing you overhear on your ra­dio. Conversations between
others sharing your channel
must be regarded as confiden­tial.

7. The FCC also requires that you
identify yourself at certain spe­cific time s by mean s of your call
letters. Refer to the rules that
apply to your particular type of
operation for the proper proce­dure.

31

REPLACEMENT OF BATTERY
PACKS

To remove the battery pack from

the radio: (refer to Figure 4).

1. Turn the radio off by sliding the
ON/OFF switch to the OFF posi-

tion.

2. Press down on the battery re­lease lat ch and sli de the battery
pack out in the direction of the
release latch.

To connect the battery pack to

the radio: (refer to Figure 5).

1. Ensure that the ON/OFF slide

switch on the battery pack) is in
the OFF position.

2. Align the Battery pack with the
slide grooves and insert into
grooves.

32

Figure 4 - Removing Battery Pack

3. Insert fully into grooves until bat­tery release latch dicks into
place.

INTRINSICALLY SAFE USAGE

Selected personal radios with ap­propriate factory installed F4 Options
are certified as Intrinsically Safe by the

Factory Mutual Research Corporation
for use in Class 1, Division 1 or 2, haz­ardous locations in the presence of
Groups C and D atmospheres; Non-in­centive Class 1, Division 2, hazardous
location s in the presence of Groups A,
B, C, and D atmospheres.

Hazardous locations are defined in
the National Electrical Code. Useful
standards NFPA 437A amid NFPA
437M for the classifications of hazard­ous area s may be o r de red fr om the Na­tional Fire Protection Association,
Batterymarch Park, Quincy, MA 02269.

BATTERY PACKS

Figure 5 - Installing Battery Packs

Only battery packs identified with a
green latch shall be used with a port­able radio that is rated and labeled as
Factory Mutual Intrinsically Safe. Use of
nonspecified battery packs voids Fac­tor y Mut ual ap proval. The following bat­ter y pack options are approved for use
in intrinsically safe radios.

PAPA1F Rechargeable Battery Pack,

Extra High Capacity
(Tall Case)

PAPA1G Rechargeable Battery Pack,

High Capacity (Short Case)

33

AUDIO ACCESSORIES

The audio ac cessories listed below
are approved for use with intrinsically
safe radios:

Use of audio accessories other
than th ose listed voids the Factor y Mu­tual approval.

RECHARGING BATTERY PACKS

PAAB1A Headset/Microphone

(high noise environment).
PAAC1J Earpiece Kit.
PAAC1B Emergency Lanyard.
PAAE3R Speaker/Microphone.
PAAE1B Speaker/Microphone

with Emergency Lanyard.
PAAE3T Speaker/Microphone/

Antenna.
PANC1Z Antenna, 896-941 MHz,

Whip.
PAHC1C Belt Clip.
PAHC1D Swivel Mount with Belt Loop.
PAHC3W Case, Leather, with Belt

Loop (Short Case).
PAHC1K Shoulder Strap, Leather,

with Mounting Plate.
PAHC5R Holster, Plastic.

When the battery pack voltage
drops below 6.5 volts DC, the low bat­ter y flag "BAT " is displayed and a 500
Hz tone sounds, indicating the battery
pack needs recharging.

There are several chargers and
charge rates available for charging the
battery packs. For specific instructions
refer to the applicable charger’s operat­ing manual.

REDUCED CAPACITY IN RE­CHARGEABLE BATTERIES:

Rechargeable batteries in some ap­plicatio ns c an develop a condition of re­duced capacity, sometimes called
“Memory Effect”. This condition may oc­cur when:

34

1. The battery is continuously over­charged for long periods of time.

2. A re gularly performed duty cycle
which allows the battery to ex­pend only a limited por tion of its
capacity.

Any rechargeable battery showing
signs of reduced capacity should be
careful ly checked before being returned
under warranty or scraped.

RECHARGEABLE BATTERY PACK
DISPOSAL

If the rechargeable battery is only
sparing ly or seldom u sed and is left on
continuous charge for one or two
months at a time, it could experience
reduced capacity. On the first discharg­ing cycle, the output voltage could be
sufficiently lowered to reduce that bat­tery’s hours of useful service.

The most com mo n m ethod of caus ­ing this limited capacity is regular ly per­forming short duty cycles; when the
battery is operated so that only a por­tion (<5 0% ) of its capa city is expended.
This type of of operation can cause the
battery to become temporarily inactive
and how a severe decrease in the abil­ity to deliver a full rated capacity.

The product that you have
purchased contains a re­chargeable, recyclable bat­tery. At the end of its useful

life, under various state and
local laws, it may be illegal to dispose of
this battery into the municipal waste
stream. Check with your local solid
waste officials for details in your area
for recycling options or proper disposal.
Call Toll Free 1-800-8-BATTERY for in­formation and/or procedures for return­ing rechargeable batteries in your state.

35

REMOVAL AND REPLACEMENT OF

THE SWIVEL MOUNT

To remove the swivel mount, slide a
flat blade screwdriver underneath the
spring ret aine r a nd t wist (s ee Figure 6).
While tw isting, slide the swivel out from
under the holder .

To replace the swivel mount, place
the end of the swivel in the grooves in
the radio and slide the mount forward
until it snaps in place.

Figure 6 - Removal And Replacement

36

PRODUCT SPECIFICATION FOR CE

MARKED EQUIPMENT

The M-PA Portable conforms to the
following Product Specifications.

EUROPEAN STANDARDS:

SUPPLEMENTARY INFORMATION:

At this time, the M-PA portable radio
may not be o perated while in a vehicular
charger in the European Community
since it has not been evaluated for op­eration in this mode.

Safety: Not Applicable
EMC: prETS 300 279

(August 1995)

TTD: Not Applicable

The M-PA portable radio may be
used in both trunked and conventional
applications.

37

WARRANTY

A. Ericsson Inc. (hereinafter "Seller") warrants to the original purchaser for use (hereinafter "Buyer") that Equipment manufactured by Seller

shall be free from defects in material, workmanship and title, and shall conform to its published specifications. With respect to a n y E qu ip­ment not manufactured by Seller (except for integral parts of Seller’s Equipment to which the warranties set forth above shall apply).
Seller gives no warranty, and only the warr anty, if any, given by the ma n ufacturer shall apply. Batteries are excluded from this warranty but
are warranted under a separate Nickel-Cadmium Battery Warranty .

B. Seller’s obligations set forth in Paragraph C below shall apply only to failures to meet the above warranties (except as to title) occurring

within the following periods of time from date of sale to the Buyer and are conditioned on Buyer’s giving written notice to Seller within
thirty (30) days of such occurr en ce:

1. for fuses, incandescent lamps, vacuum tubes and non-rechargeable batteries, operable on arrival only.

2. for parts and accessories (excep t as no te d in B .1 ) sold b y Se ller ’s Service Parts Operation , nin et y (90) days.

3. f or all other Equipment of Seller’s manufacture, one (1) year.

C. If any Equipment fails to meet the foregoing warranties, Seller shall correct the failure at its option (i) by repairing any defective or dam-

aged part or parts thereof, or (ii) by making available at Seller’ s factory any necessary repa ired or replacement parts. Any repaire d o r re­placement part furnished hereunder shall be warranted for the remainder of the warranty period of the Equipment in which it is installed.
Where such failure cannot be corrected by Seller’s reasonable efforts, the parties will negotiate an equitable adjustment in price. Lab or to
perform warranty service will be provided at no charge only for the Equipment covered under Paragraph B.3, and only during the first
three (3) months following the date of sale to the Buyer. Thereafter, labor will be charged at prevailing rates. To be eligible for no-charge
labor, service must be performed by an Authorized Service Center or other Servicer approved for these purposes either at its place of
business during normal business hours, for mobile or personal equipment, or at the Buyer’ s location, for fixed location equipmen t. Service
on fixed location equipment more than thirty (30) miles from the Service Center or other approved Ser vicer’s place of business will in­clude a charge for transportation.

D. Seller’s obligations under Paragraph C shall not apply to any Equipment, or part thereof, which (i) has been modified or otherwise altered

other than pursuant to Seller’s written instructions or written a pprov al or, (ii) is normally consumed in operation or, (iii) has a normal lif e in­herently shorter than the warranty periods specified in Paragraph B, or ( iv) i s n ot p ro pe rl y stored, installed, used, ma intained or re pa ire d,
or, (v) ha s bee n sub j ect ed to an y ot he r kind of mi su se or det rime nt al exposure, or has be en in v olved in an accident.

E. The precedi ng paragraphs set forth the exclusive remedies for claims (except as to title) based upon defects in or nonconformity of the

Equipment, whether the claim is in contract, warranty, tort (including negligence), strict liability or otherwise, and however instituted. Upon
the expiration of the warranty per iod, all such liability shall terminate. The foregoing warranties are exclusive and in lieu of all other war­ranties, whether oral, written, expresse d, implied or stat utory. NO IMPLIED OR STA TUTORY W ARRANTIES OF MERCHANTABILITY OR
FITNESS FOR PARTICULAR PURPOSE SHALL APPLY. IN NO EVENT SHALL THE SELLER BE LIABLE FOR ANY INCIDENTAL,
CONSEQUENTIAL, SPECIAL, INDIRECT OR EXEMPLARY DAMA GES .

This warranty applies only within the United States.

1-800-592-7711 (Outside USA, 804-592-7711)

38

ECX-362S

NICKEL-CADMIUM BATTERY WARRANTY

A. Ericsson Inc. (hereinafter "Seller") warrants to the original purchaser for use (hereinafter "Buyer") that

nickel-cadmiu m batteries supplied by Seller shall be free from defects in material and workmanship,
and sha ll conform to its pu blished spec ification s for a period of twelve (12) months from the d ate of
purchase.

B. For purpo ses of this warra nty, b atteries shall be deemed defective if (1) the battery capacity is less

than 80% of rated capacity, or (2) the batter y develops leakage.

C. If any bat ter y fails to mee t the foregoing warranty, Seller shall correct the failure by issuing a replace-

ment batt er y upon re ceipt o f the de fective batter y at a n Authorized S ervi ce Center (ASC). To o btain
the name and address of an ASC, ask your salesperson, consult the Yellow Pages, or call the number
printed at the bottom of this page.

D. Replacement batteries shall be warranted only for the remaining unexpired warranty period of the

original battery. This warranty becomes v oid if:

(1) The battery has been subjected to any kind of misuse, detrimental exposure, or has been in volved

in an accident.

(2) The bat tery is used in eq uipment or ser vice other than the radio equipment for which it is speci-

fied.

E. The prece ding para graphs set forth the exclusive remedies for claims (except as to title) base d upon

defects in or no n-conformit y of any batter y, whether the claim is in contract, warranty, tort (including
negligence), strict liability or otherwise, and however instituted. Upon the expiration of the warranty pe­riod, a ll such liability shall terminate. The foregoing warranties are exclusive and in lieu of all other
warranties, whether oral, written, expressed, implied or statutory . NO IMPLIED OR STATUTORY WAR­RANTI ES OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE SHALL APPLY. IN
NO EVENT SHALL TH E COMPANY BE LI ABLE FOR ANY INCI DENTAL, CONSEQUENTIAL, SPE­CIAL, INDIRECT OR EXEMPLARY DAMAGES.

This warranty applies only within the United States.

1-800-592-7711 (Outside USA, 804-592-7711)

ECX-841C

39

Police

State Police

Fire

Poison Control

Ambulance

Life Saving and
Rescue Squad

EMERGENCY NUMBERS

Ericsson Inc.

Private Radio Systems
Mountain Vie w Road
L y nch b ur g, Virginia 2450 2
1-800-592-7711 (Outside USA, 804-592-7711) Printed in U.S.A.