Emerson E2 operation manual Echelon Earth

	7	6
1.Connect the I/O or MODBUS Network to one or both of the E2			I/O or MODBUS Network
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				0V
DOWN.
3.	Connect the E2 to the Echelon Network. If possible, connect shield		WHITE	SHIELD	BLACK
4.	Set the Echelon Network jumper UP (Terminated) if the E2 is
wires to a separate earth ground outside of the E2 enclosure.
at either end of an Echelon daisy-chain. Otherwise, set the jumper
DOWN (Not Terminated).					TO OTHER
5.	Connect earth ground to one of the two ground terminals				RS485
					DEVICES
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				OBSERVE WIRE
applied to the board, the green LED will illuminate.					COLOR POLARITY

RS485 I/O or MODBUS Net
NOT TERMINATED	TERMINATED
4	Echelon

3

TO		OTHER
E
CH			ELON
DE
	VICES

LON

LON

							R
						E
					H
				T
		O					N
O
T					LO
				E
			H				S
	C
E						E
					IC
				V
		E
D

Echelon Earth

Ground

Level IV, 22 AWG, Shielded

Max Daisy Chain Length:

SHIELD Feet: 4592 Meters: 1400

P/N 135-2300 Non-Plenum

(1 Pair, 1000 Feet)

P/N 135-2301 Plenum

(1 Pair, 1000 Feet)

JP7

TERMINATED

Earth

Ground

Connector

JP7

NOT TERMINATED

6

12 or 14 AWG

AC1

AC1

24VAC 24VAC

AC2 AC2

Battery Testing and Replacement E2 Hardware Setup • 4-7