Audio-Data matrices
The Ro.Ma. enginery Audio-Data Matrices are used in the radiocommunication system to interface the transmitting and receiving audio/data channels to the operator consoles, providing a
capability to switch a number of input signals to a number of outputs. All the matrices are of “no blocking” type, i.e. each output has independent access to any input irrespective of the number of outputs being connected to the same input. Modular
design allows different configurations with various numbers of inputs and outputs, as required.
Main features:
Full non-blocking switch function
Flexible equipment configuration
Customer specified impedance
RS232, LAN 10/100
(optional) and local control
Options: balanced or un-balanced signal interface
-
Redundant CPU (only for MR-413-1)
-
Touch Screen Display (only for MR-413-1)
Audio Matrix MR-496-1 & MR-413-1 (32x32)
The MR-496-1
and MR-413-1 provides switching of 32 input lines into 32 output lines , combining in the same matrix capabilities for switching both audio and RS-232 data lines,
a characteristic which allows a very versatile use of this equipment. The
matrix is controlled by a microprocessor card
(two CPU on MR-413-1) outfitted with a programmable RS-232 serial line. The matrix is of no-blocking type, i.e capable of switching any input simultaneously to all the 32 outputs, control can be local by use of a dedicated
keyboard (Touch screen on MR-413-1) or remote over a RS-232/485/422 serial line. Optionally, an additional 32 x 32 PTT Matrix can be associated with the MR-496-1
or MR-413-1 to obtain independent Audio/Data and PTT switching facilities.
The MR-496-1
& MR-413-1 configuration includes:
qty 1 CPU card for control and monitoring
(2 on MR-413-1), also used for the RS-232/485 serial
communication and to the management of the additional 32 PTT input signals
qty 4 Audio/Data matrix cards, 32 inputs, 8 balanced outputs
qty 2 input cards for the termination of the input balanced lines
qty 1 optional card for the management of the PTT output signals
qty 1 power supply
qty 1 keyboard and LCD display
(Touch screen on MR-413-1) for local control of the matrix nodes and status
monitoring
qty 1 19” standard rack, 3 units.
The matrix is all solid state with a modular structure which allows replacement of
modules during operation (with the only exception of the CPU card and front panel,
not for the MR-413-1) and down-sizing of the matrix switching capabilities, if required. The matrix can be connected to 600 Ohm balanced lines and to balanced/unbalanced data lines at
data rates up to 100kbit/sec. All the interconnections are flat cables
terminated with connectors, all inputs and outputs are protected against over voltage and over current conditions.
Technical characteristics
Input lines |
32 |
Output lines |
32 |
Input - Input isolation |
> 70 dB |
Output – Output isolation |
> 70 dB |
Switching time ( audio) |
< 10 mS |
Input/output impedance |
600 Ohm nominal, high impedance programmable |
Input level |
+ 20 dBm max |
Distortion |
1% max |
Optional PTT inputs |
32 opto-isolated |
Optional PTT outputs |
32 opto-isolated, 100 mA sink |
Communication protocol |
STX / ETX dedicated |
Communication interface |
RS 232- RS 485, 4/2 wires Dip Switch programmable |
Primary power |
220Vac / 115Vac |
Size |
19” Standard Rack 3 U , depth 357 mm |
Operating temperature |
0°C to +50° C, extension to -20°C to+50 C° upon request (LCD excluded) |
Redundant CPU |
Only for MR-413-1 |
5.7" Color Touch Screen |
Only for MR-413-1 |
|