4
4
C
C
H
H
A
A
N
N
N
N
E
E
L
L
A
A
N
N
A
A
L
L
O
O
G
G
U
U
E
E
T
T
R
R
A
A
N
N
S
S
M
M
I
I
T
T
T
T
E
E
R
R
7
7
O
O
F
F
3
3
0
0
1
1
2
2
0
0
-
-
1
1
8
8
8
8
-
-
1
1
2
2
T
T
Y
Y
P
P
E
E
S
S
I
I
L
L
B
B
U
U
S
S
-
-
T
T
X
X
4
4
A
A
(
(
G
G
)
)
U
U
S
S
E
E
R
R
'
'
S
S
M
M
A
A
N
N
U
U
A
A
L
L
I
I
s
s
s
s
u
u
e
e
:
:
0
0
5
5
3 FRONT PANEL LAYOUT
The four channel analogue transmitter front panel is located between the terminal blocks
that form part of the enclosure. The front panel is shown in photograph 1 below.
Photograph 1 SILBUS-TX4A front panel
Located in the top right hand corner of the front panel are the STATUS and POWER
indication LED’s. The green power LED is illuminated whenever a 12 volt supply is
connected to the transmitter. The orange status LED flashes at different rates to indicate
the operational status of the transmitter, see table 2 for more details.
The front panel can be snapped out and removed by using a wide bladed flat screw driver
to gain access to the configuration (console) port and programming switch. Photograph 2
below shows the front panel removed and the location of the console port and programming
switch.