EST CM1 User Manual

42 Network Controllers Manual
The following diagram illustrates Style 4 (Class B) RS-485 network
signal (data) line wiring between a CM1(N) and CM2(N) control
modules. Both the CM1(N) and the CM2(N) must be equipped with a
COMM-3 communications card in connector P3.
[NWC-017.CDR
)
CM1(N)
NETWORK
MASTER
TB1
4
8
10
1
5
3
7
9
2
6
P1
P2
P3
P4
P7
J1
J2
COMM-3 CARD
CPU CARD
CM2(N)
NETWORK
SLAVE
TB1
4
8
10
1
5
3
7
9
2
6
P1
P2
P3
P4
P7
J1
J2
COMM-3 CARD
CPU CARD
RS-232
TO ADDITIONAL
FIELD PANELS
DATA 2 (-)
SHIELD
SHIELD
DATA 2 (-)
DATA 2 (+)
DATA 2 (+)
DATA 1 (-)
DATA 1 (-)
DATA 1 (+)
DATA 1 (+)
NOT
USED
NOT
USED
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EST CM1 Specifications

General

Brand	EST
Model	CM1
Category	Controller
Language	English