ZETRON Tetra 390 User manual

FEATURES
• Desktop remote controller for TETRA radio
• Gives one or more operators direct access to a
TETRA radio through local wiring, private wire,
ISDN, or microwave circuits
• Suitable for Private or Public Access TETRA
networks
• Provides convenience and efficiency for operators
on TETRA networks
• Extends radio access into poor coverage areas
• Gives out of area access into remote TETRA
networks
• Layout/functions match the Motorola TM
300/700/800 radio
INTRODUCTION
The Model 390 is a versatile remote controller for the
Motorola MTM300/700/800 TETRA radio.
This controller is suitable for use in public or private
systems. The radio can be placed up to 600 metres
away from the controller and up to 15 controllers can
be connected to one radio.
Optionally the Zetron Model 232 Interface may be
installed between the Model 390 and the TETRA
radio enabling the TETRA radio to be controlled over
leased line or ISDN.
This enables the radio to be placed in the best
radio coverage area whilst giving operator access
from another location. This might include locations
not receiving network coverage such as buildings,
tunnels or basements, or out of area locations which
are not served by the network. For example, users
in areas outside the regional network can have dial
up or leased line access without the expense of
extending the network.
The Model 390 is also suited to radio operator dispatchers
and office personnel who need access to a radio system
without having a radio placed in the office environment.
APPLICATIONS
The Model 390 can provide operator access to a TETRA
network when the operator is not receiving radio coverage
or is out of the network area.
Placing the radio away from the office desk reduces
potential EMC/EMI risk to office computers and other
equipment. Additionally the Model 390 avoids the need
for RF antenna cabling by typically making use of existing
telephone wiring between controller and radio.
MODEL 390 DIGITAL RADIO REMOTE CONTROLLER
Multidrop Installation
Single Desktop Remote

Using the Model 390 multidrop capability, several Model
390s—for example along the length of a tunnel—can have
access to a single TETRA radio. For the operator who is
out of the network area or perhaps wants access to a
network in another region, the Model 390 fitted with the
Model 232 Interface gives true remote access over dial up
telephone line, private wire or ISDN. Use of the dial up line
or ISDN means connection costs are only incurred when
the Model 390 is in use.
Organizations with remote offices in different cities or
even countries can access a distant regional TETRA
network and have the same functionality as a local radio.
For public network operators this is a revenue opportunity,
bringing in organizations which otherwise may not
subscribe because their offices are out of the coverage
area.
For private networks, the Model 390 extends the effective
range of the network and allows personnel in one region
to have direct access to a network in another region.
This is valuable to organizations—such as utilities—with
personnel in different regions.
Organizations such as emergency services can also get
access to each other's regional networks including direct
access to an isolated site when the network is in fallback
mode.
For many office based personnel, the Model 390 with
optional desk microphone, headset, footswitch and
external speaker is a preferable presentation to having
a fixed radio. It allows the radio to be sited for optimum
coverage, while bringing the controller to the desk of the
operator.
Where multiple operators need radio access, up to fifteen
Model 390s can share a single TETRA radio. Supervisory
control and intercom between Model 390s is
also included.
DESCRIPTION
The Model 390 is a robust telephone style controller with
a large, easy-to-read LCD display and handset. Each unit
has an individual rotary volume control, numeric keypad
and function buttons. The function buttons match the radio
making the operation simple and intuitive for any operator
familiar with the MTM300/700. LED button indicators
show which functions are activated and the presence of
incoming messages in the stack.
The Model 390 supports the same languages as the radio,
including English, German and French. Typical information
displayed includes operating mode, current call
information, alarm symbols, status and data information,
speed call names and signal strength from the radio
system.
The handset includes a push-to-talk press bar and a built-in
speaker and microphone allows hands-free operation.
Hands-free intercom between all controllers is possible
in a multiple controller system. Mute operation enables
the operator to take incoming calls and hand-off to other
positions.
An automatic gain control (AGC) regulates the transmit
and receive audio. All radio progress tones received at
the MTM300/700 are passed to the Model 390 for ease
of operation and operator confidence. Duplex operation is
available.
The system consists of a compact radio interface, located
at the MTM300/700 radio, and one or more desktop
controllers. Several controllers can be connected to the
radio interface, each up to a distance of 600m from the
radio interface.
For true remote applications a pair of Model 232 units
are used between the controller and the Zetron radio
interface supporting dial up telephone, private wire or
ISDN connection. Several controllers can share access to
a single controlling Model 232. See separate Model 232
brochure for other operation details.
Each controller comes pre-configured and ready to install,
but Model 390s can be individually customized to meet
specific requirements. A range of external accessories can
be added including an external desk microphone, headset,
footswitch, external amplified speaker and tape recorder.
Out-of-Area Access

The four line LCD gives you the
familiar look and feel of the TETRA radio.
MODEL 390 FUNCTIONS
The Model 390 presents the standard radio front panel
control functions found on the MTM300/700, as well as a
number of additional operator functions valuable in a radio
dispatching environment. SPEED CALL
SELECTORS EXTERNAL ALARM
ON/OFF
PRIVATE CALL
ADDITIONAL FUNCTIONS
● RADIO RESET
● ADJACENT CONTROLLER MUTE
● LINE CONTINUITY CHECK
● REMOTE RELAY OUTPUT
STATUS INDICATORS
LED indicators show the status of function buttons.
SECURE MODE INTERCOM
SELECT MUTE
CALL CLEAR TRANSMIT
EMERGENCY
ALARM SENDING STATUS
TELEPHONE CALL DIRECT MODE
SELECTING
A TALKGROUP GROUP CALL
FEATURES
For a full description of the radio, its features and
operation, refer to the radio user’s guide.
Supervisor take-over and output switch
enables supervisor to clear calls at other
controllers and to switch the control
output contact at each controller. Supports
emergency applications, including disabling
other controllers or activating an alarm.
FUNCTION BUTTONS
Additionally, indicators show:
● LOUDSPEAKER OPEN
● REGISTERED
● SCAN
● IN USE
Each Model 390 has its own individual volume setting.
Functions: access to all radio front panel
functions using clearly labeled keys.
Intercom: talk directly to other Model
390s without using the radio. Radio
audio still sent to controller even when
intercom is in use.
Mute: disables all receive
audio for operator quiet working.
Automatic adjacent controller
mute to eliminate audio feedback.
Secure Mode: prevents all other
Model 390s from monitoring the
conversation, transmitting, and/or
changing radio settings. Provides
user confidentiality.
Optional on-line or off-line programming.
On-line saves cost of programming
software, off-line avoids system down
time during programming.
Desktop presentation with handset
provides telephone style operation.
Up to 15 parallel controllers share
one radio. Multiple dispatchers have
access to the radio system improving
efficiency without the additional
purchase or airtime rental
cost of multiple radios.
Handset for semi-private
conversations. Speaker and
microphone for easy use.
Connections for recorder,
extra amplified speaker,
headset, desk microphone
and footswitch.
Output contact can be
triggered on incoming calls.
Remote Controller up to 600m from radio, or
remoted, ISDN or private wire with a Model 232 Interface.
Enables radio to be located for best reception,
while putting controller near operator. Extends radio
access to locations out of radio coverage.
Provides inter-region working into remote TETRA networks.

See Zetron price list for option pricing. Specifications subject to change without notice 005-1342B September 2007
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© 2007 Zetron, Inc. All rights
reserved. Zetron is a registered
trademark of Zetron, Inc.
All trademarks are properties of
their respective owners.
SPECIFICATIONS
GENERAL
Radio types Motorola MTM300/700 mobile
radios used on TETRA systems
Operation As MTM300/700 full front panel
Max Model 390s 15 in parallel
Max distance Approx. 600m from radio interface
Indicators LCD shows full radio status messages and
menus. LEDs for TX, Service, Data message
received, Intercom, Mute, and Secure mode. LCD
icons for "in-use", Continuity check and
External alarm selected
Controls TX key, Clear key, Edit key, shortform dial keys,
Data key, Status key, External alarm key,
Emergency key, Hookswitch, Phone, Group and
Private keys, Range key and Direct Mode key,
volume knob, Intercom, Mute and Secure mode
keys. Radio reset is available through a
combination of keys
Progress tones Passes all radio progress tones
(see radio user guide for details)
Language English, German and French
M390 TO RADIO INTERFACE CONNECTION
Connection scheme Any (T, star, multi-drop etc)
Wire type Telephone grade, 24 gauge
(0.6mm diameter) or larger, twisted pairs or
equivalent
Number of wires 6 (3 pairs)
Connectors 6 conductor telco modular (RJ-11)
AUDIO INTERFACE
Standard audio Front panel microphone and interface speaker
or handset with hook switch front panel
speaker mute and PTT switch. Duplex operation
available
Desk mic interface Screw terminals for connection of an external
dynamic desk microphone
External amplified Screw terminals for connection of
speaker interface an external amplified speaker
(nominal 600 ohm output)
Recorder interface Screw terminals for connection of
external recording device—single
ended audio (nominal 600 ohm, 0 dBm output)
and a control line to activate the recorder when
audio is present (FET pull to ground)
Headset interfaces Allow connection of a 4 or 6 (optional) wire
headset in place of the handset
Footswitch PTT Screw terminals are provided to control connect a
footswitch for PTT control of the front panel
microphone or a desk microphone, and a headset
Automatic gain Present on both transmit and control
receive audio
GENERAL M390 SPECIFICATIONS
Power 12 to 16 VDC at 600 mA, or
12 VAC 1A, 50/60 Hz from external
power supply
Mounting Desk or wall mount
Temperature 0° to +60° Celsius
Size 11.2 x 21.1 x 24.15cm
4.5 x 8.5 x 9.5 in. (h x w x d)
MODEL 390 RADIO INTERFACE
Mounting Co-located with the radio
Connections Connects to the radio through the
radio DB25 connector on the bottom of
the radio. This provides all signals and
power to the unit
Connection to 6-conductor RJ-11
Model 390 remotes
Programming A keyed 6-conductor RJ-11 for
connector connection to Zetron programming
cable and PC
Indicators Power/Status, radio and remote
communication indicators as well
as a setup mode enabled
indicator
Switches Setup mode initiate push switch
Temperature 0° to +60° Celsius
Size 3.4 x 22 x 17.8cm
1.5 x 8.5 x 7 in. (h x w x d)
Weight Approx. 950g (2.09lb)
MODEL 232 REMOTE INTERFACE
Choice of Bearer ISDN, microwave, 2-wire and 4-wire
leased lines
Modem Port RS-232 compatible DTE
interface, male DB9 connector.
For connection to an external
modem capable of 28.8Kbps or
better
Desktop Remote Port 6-wire interface compatible with
the Zetron models Z370, 380, 390
and DDC100 remotes.
Connected to either the remote(s)
or the radio interface panel
Power Connector Accepts power from either a 12-volt
AC wall transformer or an external
13.8 volt DC unregulated supply