Ericsson M-PA EDACS User manual

M-PAEDACS 900 MHz
SELECT, SCAN, & SYSTEM
PERSONAL RADIOS
LBI-38574B
Operator’s Manual
E

Copyright© April 1991, Ericsson GE Mobile Communications, Inc.
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
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
This manual is published by Ericsson Inc., without any
warranty. Improvements and changes to this manual ne-
cessitated by typographical errors, inaccuracies of cur-
rent information, or improvements to programs and/or
equipment, may be made by Ericsson Inc., at any time
and without notice. Such changes will be incorporated
into new editions of this manual. No part of this manual
may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying
and recording, for any purpose, without the express writ-
ten permission of Ericsson Inc.
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
REPLACEMENT OF THE
SWIVEL MOUNT . . . . . . . . 36
WARRANTY . . . . . . . . . . . 38
NICKEL-CADMIUM
BATTERY WARRANTY . . . . . 39
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Figure 1A - M-PA EDACS Personal Radio
M-PA SELECT M-PA SCAN
4

Figure 1B - M-PA EDACS Personal Radio
M-PA SYSTEM SIDE VIEW
5

INTRODUCTION
This manual describes how to use
the M-PA EDACS System Personal Ra-
dios. The M-PA EDACS Select, Scan,
and System Personal Radios are field
programmable microprocessor control-
led portable radio designed for Digital
Trunking and Conventional communica-
tions.
It is housed in a rugged aluminum
case equipped with an easy to read al-
phanumeric display providing operating
information and radio status. The con-
trols include top mounted rotary Volume
and Control knobs, four Function keys
and a keypad. A recessed Emergency
button permits the use of a single but-
ton in sending emergency calls.
OPERATING NOMENCLATURE
CONVENTIONAL OPERATION
All units on a conventional system
operate through the same radio re-
peater. Trunked features (such as call
queuing and system scan) are not avail-
able 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
Figure 2 - M-PA EDACS System
Personal Radio (Top View)
6

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 to an unused channel when
a call is initiated and will also only re-
spond to calls in the same user group.
In this way conversation privacy be-
tween 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
currently providing service to the radio.
Radios can be preprogrammed to work
in different systems by changing the
CONTROL Knob position or by press-
ing 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 their mobile and portable ra-
dios. All units in the same group will re-
ceive a dispatch call placed by any one
unit in the group.
FLEET (Trunked Operation Only)
A fleet of users consists of multiple
groups (subfleets). Radios can be pre-
programmed to make fleet calls to si-
multaneously access multiple user
groups.
AGENCY (Trunked Operation Only)
An agency is composed of multiple
fleets. Units can be preprogrammed to
7

initiate agency calls to access multiple
fleets.
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 battery 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.
VOLUME The VOLUME Control
Knob, located on the top
of the radio, adjusts the
receive volume to the
desired listening level.
MONITOR In the Trunked mode,
pressing the MONITOR
button enables non-su-
pervisory users to clear
message trunked indi-
vidual calls, entered dig-
its, and interconnect
calls. Supervisory units
may clear any call re-
gardless of type, trans-
mission or message
trunked. The MONITOR
button is also used to
clear any currently active
callback Status for both
supervisors and non-su-
pervisors.
In the Conventional
mode, the receiver may
be unsquelched by
pressing and holding the
8

MONITOR button. This
permits the user to listen
to the receiver and ad-
just the volume control
to the desired level.
When the button is re-
leased, the radio mutes
unless a carrier and
channel guard (if en-
abled) were detected in
the interim.
EMERGENCYThe EMERGENCY but-
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 ac-
complished with either
the Control knob or the
STEP key depending on
the personality program-
ming. If the Control knob
is used for System
change, rotating the
knob will change Sys-
tems.
If the STEP key is used
for System change, then
pressing the STEP key
will take the radio to the
next system. Pressing
2nd then 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 pro-
grammed to stop or
wrap around to the end
of the list.
(Trunked
mode only)
9

Selection may also be
made by entering the
system number and
pressing the STEP key
(System model only).
Group/Channel Selec-
tion -Group selection is
accomplished with either
the Control knob or the
STEP key, depending on
the personality program-
ming. If the Control knob
is used for Group
change, rotating the
knob will change
Groups.
If the STEP key is used
for Group change, then
pressing the STEP key
will take the radio to the
next Group. Pressing
2nd then STEP will take
the radio to the previous
Group. Upon reaching
the end of the Group list
the radio can be pro-
grammed to stop or
wrap around to the other
end of the list. Selection
may also be made by
entering the group num-
ber and pressing the
STEP key (System
mode only).
Figure 3 - M-PA System Keypad
10