Emerson Copeland Scroll Series, Manual

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Installation Instructions: XJ Scroll Condenser to E2
Document Part # 026-4909 Rev 1 20-OCT-2011 Page 3 of 13
©2011 Emerson Climate Technologies, Inc. This document may be photocopied for personal use.
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technical bulletin
When the E2 is at one end of the daisy chain, terminate the E2 with all three jumpers in the
terminated (UP) position.
Figure 2 - E2 Modbus Connected to the One-Way Communication Board
RS485 MODBUS
CONNECTORS
E2 Power Interface
Board (PIB)
O
n
e
-w
a
y
c
o
m
m
b
o
a
rd
D1: RS485+ (B)
C: Common
+485
D0: RS485- (A)
-485
0V
ECT MODBUS
CONNECTOR on the
XJ Scroll One-way
Comm Board
WHITE
BLACK
SHIELD
+485 -485 0V
W
H
IT
E
B
L
A
C
K
S
H
IE
L
D