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000064BG
5 - Installation
Table: crimping scheme connectors RJ45
Pin N°
Function
1 8
3
+T/R
5
-T/R
7
RTN
1, 2, 4, 6, 8
not used
Use a connector with metal body to provide cable shield continuity!
For long distance connections, the connection on terminal connector is
preferable using a shielded twisted pair cable with characteristic imped-
ance of Z0=120 Ohm like the one shown in the following table:
Signal
Symbol
-T/R
+T/R
LNK
RTN
-T/R
+T/R
LNK
RTN
Positive data
+T/R
Negative data
-T/R
Reference
RTN
Shield
LNK
Shield continuity must be provided along the communication line using the SH terminal and
must be grounded at a single point.
P
rocedure for connection to a monitoring system
Connect all the units of the RS485 chain in accordance with the “daisy-
chain” arrangement (“in-out”) observing the correspondence between
signals, and activate the termination resistance of the communication
line in the last element of the chain by switching switch a10
(to ON posi-
tion).
Monitor
a10 = ON
a10 = OFF
a10 = OFF
UNO
UNO
UNO
RS485 CARD
J24
RS485(B)
17
1
18
J15 1
J16
2
J6 1
RS485
T/R
T/R
RTN
LNK
J14
BT1
CR2032
WIND REM
WT
WT
R
R
RS485(A)
J13
ALARM
N.C.
N.O.
C
TERM. 120
ON
OFF
S3
17
MEMORY CARD
J4
18
K4
J23
S1
1
S2
2
N
1
L
2
MOV3
3
MOV4
J25
RED
GFI
GFI
BLACK
W4
W3
WHITE
GND_MODE
W2
GRID
MOV2
J10
3
+IN
4
J20
F1
J5
1
5
2
9
6
14
11
J9
DC IN
-IN
1
-IN
2
J19
J7
1
MOV1
+IN
J17
J18
J8
1
S3
TERM. 120
a10
ON
OFF
