Emerson E2 User Manual Page 57

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Battery Testing and Replacement E2 Hardware Setup4-7
NOT TERMINATED TERMINATED
Echelon
JP7
1.Connect the I/O or MODBUS Network to one or both of the E2
RS485 I/O or MODBUS Network ports. (A maximum of 31 devices
can be wired to each I/O or MODBUS Network port.)
2. For each I/O or MODBUS Network port, set RS485 termination
jumpers UP if at either end of a daisy chain. Otherwise, set jumpers
DOWN.
3. Connect the E2 to the Echelon Network. If possible, connect shield
wires to a separate earth ground outside of the E2 enclosure.
4. Set the Echelon Network jumper UP (Terminated) if the E2 is
at either end of an Echelon daisy-chain. Otherwise, set the jumper
DOWN (Not Terminated).
5. Connect earth ground to one of the two ground terminals
provided. Use 12 AWG (preferred) or 14 AWG wire and keep as
short as possible (less than 12 inches preferred).
6. Connect 24VAC to the power terminals.
7. Flip the power switch to the ON position. When 24VAC has been
applied to the board, the green LED will illuminate.
4
3
Earth
Ground
Connector
AC1
AC2
AC1
AC2
24VAC
24VAC
6
12 or 14 AWG
RS485 I/O or MODBUS Net
JP7
Level IV, 22 AWG, Shielded
Max Daisy Chain Length:
Feet: 4592 Meters: 1400
P/N 135-2300 Non-Plenum
P/N 135-2301 Plenum
(1 Pair, 1000 Feet)
(1 Pair, 1000 Feet)
NOT TERMINATED
TERMINATED
BLACK
SHIELD
WHITE
TO OTHER
RS485
DEVICES
_
0V
+
I/O or MODBUS Network
Echelon
LON
LON
T
O
O
T
H
E
R
E
C
H
E
L
O
N
D
E
V
I
C
E
S
T
O
O
T
H
E
R
E
C
H
E
L
O
N
D
E
V
I
C
E
S
Earth
Ground
SHIELD
7
6
OBSERVE WIRE
COLOR POLARITY
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