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CONNESSIONI
CONNECTIONS
2.1 Collegamenti delle postazioni
I collegamenti delle postazioni sono effettuati tramite cavi STP cat.5
diretti (cioè non incrociati o ‘cross-cable’). Gli standard EIA/TIA
T568A e EIA/TIA T568B prevedono per tali cavi (e relativi connettori
tipo RJ45) le seguenti piedinature e colorazioni:
Importante!
Tutti i connettori devono essere di tipo RJ45 schermato.
Tutte le postazioni dispongono di due prese di ingresso/uscita
IN/OUT
(9). Nelle tabelle sottostanti vengono elencate le piedinature
di questi connettori.
Le postazioni
MBT 1106
e
MBT 1112
sono connesse tra loro in
cascata, utilizzando le prese posteriori
IN/OUT
(
9
), come illustrato in
Fig. 2.1.1; si fa presente che le due prese IN/OUT possono essere
utilizzate indifferentemente sia come ingresso che come uscita.
Per il numero massimo di postazioni utilizzabili, fare riferimento
al manuale dell’unità di controllo del sistema in cui le basi sono
utilizzate.
1
2
3
4
5
6
7
8
Pin 1
Pin 8
8
7
6
5
4
3
2
1
Pin 8
Pin 1
T568A STANDARD
Pin
Colore
Colour
1
bianco/verde
white/green
2
verde
green
3
bianco/arancio
white/orange
4
blu
blue
5
bianco/blu
white/blue
6
arancio
orange
7
bianco/marrone
white/brown
8
marrone
brown
T568B STANDARD
Pin
Colore
Colour
1
bianco/arancio
white/orange
2
arancio
orange
3
bianco/verde
white/green
4
blu
blue
5
bianco/blu
white/blue
6
verde
green
7
bianco/marrone
white/brown
8
marrone
brown
Pin
IN/ OUT
1
Audio +
2
Audio -
3
GND
4
Non collegato / Not connected
5
Non collegato / Not connected
6
+Vcc
7
S /
8
Seriale – / Serial –
Schermo / Shield
GND
2.1 Connections of stations
The stations are connected by means of direct Cat. 5 STP cables
(no cross-cables). In accordance with EIA/TIA standard T568A and
EIA/TIA standard T568B, the pin-out for these cables (and their
RJ45 connectors) and the colour codes are:
Important!
All the connectors must be shielded RJ45 type.
Each station has two
IN/OUT
(
9
) input/output sockets. The pin-outs
of these connectors are listed below.
The
MBT 1106
and
MBT 1112
stations are connected to one another
in cascade formation using the rear-panel
IN/OUT
sockets (
9
), as
illustrated in Fig. 2.1.1. It is pointed out that the two IN/OUT sockets
can be used either as inputs or as outputs as required. For the
maximum number of stations that can be used, refer to the manual
of the control unit of the system in which the bases are used.
Fig. 2.1.1
Datasheet 1811.001
DIGITAL MICROPHONE CONSOLE VA-FMC-512
Page 2 | 9
1. Connections
The station must be connected to the Emergency Desk of the VA-500 system. It is possible to connect up to 4 remote sta-
tions in cascade formation by means of the IN / OUT (C) sockets provided for this purpse, which can be used as inputs or
outputs as required. Special attention must be paid to assigning correctly the logical addresses to each station. The connec-
tions to the stations are made by means of CAT5e SF / UTP shielded cable and a shielded STP connector.
For these cables EIA / TIA T568A and EIA / TIA T568B (and the associated RJ45 connectors) standards require the pinouts
and colour schemes shown in the table below. The table also shows the pinouts for the IN / OUT connectors (B).
Attention!
Cross-cables are not permitted. All the connectors must be shielded RJ45 connector
Connection diagram T568B STANDARD:
Pin
T568A (Colour)
T568B (Colour)
IN / OUT (Function)
1
White / Orange
White / Green
Audio +
2
Green
Orange
Audio –
3
White / Orange
White / Green
GND
4
Blue
Blue
Not connected
5
White / Blue
White / Blue
Not connected
6
Orange
Green
+VDC
7
White / Brown
White / Brown
Serial +
8
Brown
Brown
Serial –
Shield Shield
Shield
GND
1.1. Sizing
Using shielded CAT5e SF / UTP cable, it is possible to apply the following limits:
1 station = total length max. 300 m
2 stations = total length max. 200 m
3 stations = total length max. 100 m
For systems with more than three stations connected to them, at distances greater than those indicated above, each station
will also have a local power supply providing a continuous stabilised current of 24 VDC / 500 mA, using the socket provided
for this purpose on the rear (A).
