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See Zetron price list for option pricing.    Specifications subject to change without notice   005-1342B    September 2007

ZETRON USA

PO Box 97004  
Redmond, WA  
98073-9704  
USA

TEL

  425 820 6363 

FAX

  425 820 7031 

[email protected]

WWW.ZETRON.COM

ZETRON UK

27-29 Campbell Court  
Bramley TADLEY 
Basingstoke RG26 5EG 
UK 

TEL

  +44 (0)1256 880663 

FAX

 

+44 (0)1256 880491

[email protected]

ZETRON AUSTRALASIA

PO Box 3045  
Stafford Mail Centre 
Stafford QLD 4053  
Australia 

TEL

  +61 7 3856 4888 

FAX 

  +61 7 3356 6877

[email protected]  

© 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

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