Radio intercom systems

 Radio intercom systems

 

A new line of products developed to support radio operators  with intercommunication  and centralized operation facilities, by use of advanced networking techniques

 

Radio Intercom System MRC-01

Radio Intercom System MRC-01 allows ring-type centralization of up to 30 operator terminals without use of switching units.

 

The operator terminals can be of three different types:

  • User Termination.

  • Radio Termination dedicated to radio and/or modem systems, public-address audio systems and/or telephone services .

  • Sharing Termination, used for inter-operation of the system  with other rings to increase the centralization capabilities.

Main features:

  • A digital-type ring designed for connection to the three types of terminations.

  • Without any software configuration, it is possible to connect to the ring up to 30 user Terminals and Radio Terminals or to keep them switched off.

  • It is therefore possible to increase or decrease the system’s capabilities without any re-configuration.

  • Only one Sharing Terminal can be connected to one ring.

  • When a Sharing Termination is installed, the number of simultaneous conversations shall be subtracted from the aforementioned 30 conversations in both rings.

  • The User Terminals are outfitted with digital Framers which allow identification of the voice packets flowing in the ring, the Radio Terminations provide the digital-to-analog conversion and analog to digital conversions between the framers and the radio circuits.

  • To ensure fail-proof operation, the system has a redundant structure consisting of two concentric rings: In case of failure of one ring, the data packets will be automatically re-routed to the other ring.

  • Digital communication techniques allow conference interconnections of up to 6 users over two separate conference lines.

 

  

                              Technical characteristics

Primary power

DC : 21Vdc to 28Vdc  1 Amp /terminal

Primary power on the signal cable

Network characteristics

2  digital communication concentric rings

Number of users

30 max, including  radio circuits

Digital communication mode

T1/CEPT

Bit Rate

2 MBit/sec

Digital coding

AMI/HDB3 E1

Digital connections per ring

Tx : two AWG 22 wires, twisted

Rx : two AWG 22 wires, twisted

A/D and D/A conversion

PCM std.  A law

Tx and Rx channels to the radio circuits

Up to three operator posts in a network configuration

Functional characteristics of the User Terminal

 

Audio channels on the headset

Up to three

Audio channels on loudspeaker

Up to three

Conference channels

Up to 12 correspondents over two separate lines

Tx channels

Up to three simultaneous channels, one PTT

Wired headset output

10 mW / 600 Ohm

Wireless headset output (opt.)

WI-FI frequency, proprietary protocol

Loudspeaker output

8 W RMS

Rx/Tx headset connector

VG 95351

 

MMI User Terminal reduced (Low cost)

 MRC-02

MMI

Through dedicated buttons and two LEDs for each key

Total controlled Utilities

11 Utilities viewable

User Terminals

5 Terminals Max

Radio Terminals

5 Terminals radio Max

Speaker external terminal

1 Speaker terminal

Channels Conference

2 total

Adjusting volume headphones

Digital memory

Adjusting volume loudspeaker

Digital memory

Adjust Brightness LED

Automatic with photoptical sensor

Dimensions

155  x 155  x 100  mm

Weight

<= 1,5 Kg

MTBF

> 10.000 h

MTTR

<= 1 h

MMI User Terminal LCD

 MRC-01

MMI

Through LCD Color Display with Touch screen

Total controlled Utilities

30 Utilities viewable

User Terminals

From 1 to 30 User Terminals

Radio Terminals

From 1 to 29 Radio Terminals

Channels Conference

2 total

Adjusting volume headphones

Digital memory

Adjusting volume loudspeaker

Digital memory

Adjust Brightness LED

Automatic with photoptical sensor

Dimensions

155  x 155  x 100  mm

Weight

<= 1,8 Kg

MTBF

> 10.000 h

MTTR

<= 1 h

 

Radio Termianls (6 radio)

 MRC-06/06

MMI For single radio

8 Led reporting:

Transfer date / bite circuit

Audio Tx Out

600 Ohm 0 dBm nominal balanced

Audio Rx Input

60 Ohm o dBm nominal balanced

PTT Out

Open collector Optoisolate 50 Vdc max 50 mA

Ptt In

Optoisolator # ref voltage +5 Vdc 10 mA

BackPtt In

Optoisolator # ref voltage +5 Vdc 10 mA

Ready In

Optoisolator # ref voltage +5 Vdc 10 mA

Dimensions

19” Rack Standard 1 Unit Depth 360 mm

Weight

<= 2,8 Kg

MTBF

> 10.000 h

MTTR

<= 1 h

 

Power Unit

 MRC-05

In Ac Power

90÷250 Vac

Out DC Power

24 Vdc  15 Amp

Cooling

Autoventilated with automatic activation

Dimensions

19” Rack Standard 2 Unit Depth 280 mm

Weight

<= 2 Kg

MTBF

> 10.000 h

MTTR

<= 1 h

 
  Ro.Ma. Enginery - Via Costarica n.6 - 00040 Pomezia Roma - ITALY -                                                            Tel.: +39069112483-+390691604670 Fax: +390691141867 e-mail: