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System Wiring (cont'd)
Connecting Additional Telecom Apparatus
A BT secondary socket, allows additional telecom apparatus to be connected in series with the on-board
telecom module. Connect the PHONE terminals A and B on the PCB to the terminals on the BT secondary
socket. See Figure 2-7.
Line Monitoring
Under normal idle state conditions, the on-board Telecom Module monitors the RS485 line. The communica-
tion status is indicated by the state of the red LED (LED1) as shown in the following table:
L
E
D
O
O
N
-
0
S
n i
g
e l
F
a l
s
h
n i
O
n
d
r u
g
o
d l
a
i l F
k c
r e
g
a
a l
y x
F
a l
s
h
e
P
u
s l
e
s
L
E
D
S
T
A
T
E
F
F
1
, s
O
F
F
-
0
9 .
s
p
u
s l
e
t a
e
n
d
o
c f
l l a
g
t a
e
n
d
f o
l a
r a
m
c
l l a
n i
g
l a
r a
m
m
o
t i n
r o
n i
, g
g
a
n
d
S
M
S
n i
g
d
r u
n i
g
l a
r a
m
m
o
t i n
r o
g
o
d l
a
n
d
S
M
S
s
n i
i t
m
e
i w
h t
r
n i
g
n i
g
s
g i
n
a
s
e
a
c
h
d
g i
t i
s i
d
a i
e l l
d
Table 2-2. Comms Status
Galaxy 3 Series Installation Manual
N I
D
C I
A
T
O I
N
o
d
. c .
s
u
p
p
y l
o t
m
N
r o
m
a
c l
o
m
m
u
n
c i
t a
N
r o
m
a
c l
o
m
m
u
c n
t a
F
a
e l i
d
C
o
m
m
u
n
c i
t a
a l
y x
N
r o
m
l a
C
o
m
m
u
n
c i
n i
, g
P
o
r o
c
o
m
m
u
n
c i
t a
o i
l a
L
n i
e
R
n i
g
n i
g
N
r o
m
l a
n i
d
c i
t a
o i
n
w
m
a
k
n i
g
c
l l a
2-8
N
o
d
u
e l
o i
n
o i
n
o i
n
t a
o i
n
n
h
e
n
- Quick Links:
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