Basler Electric DGC-2020HD - Manual (Page 45)

9469300990 Rev B 35
Expansion Module Connections (CAN 1)
The AEM-2020 (Analog Expansion Module) and CEM-2020 (Contact Expansion Module) are optional
modules that may be installed with the DGC-2020HD. These modules interface to the DGC-2020HD via
the “CAN 1” interface, thus the CAN terminals (51, 52, and 53) are the only common connections
between the DGC-2020HD, AEM-2020, and CEM-2020. Up to four CEM-2020 modules and up to four
AEM-2020 modules are supported on a network. Typical connections are illustrated in Figure 13.
Refer to the AEM-2020 and CEM-2020 chapters for more information.
Figure 13. DGC-2020HD Expansion Module CAN Connections
Installation for CE Systems
For CE compliant systems, it may be required to route ac voltage and current sensing wires separately
from other wires.
P0071-52
DGC-2020HD
53) SHIELD
52) CAN 1 H
51) CAN 1 L
AEM-2020 (2)
GND
CANH
CANL
CEM-2020 (1)
GND
CANH
CANL
CEM-2020 (2)
GND
CANH
CANL
CEM-2020 (3)
GND
CANH
CANL
CEM-2020 (4)
GND
CANH
CANL
AEM-2020 (1)
GND
CANH
CANL
AEM-2020 (3)
GND
CANH
CANL
AEM-2020 (4)
GND
CANH
CANL
1
The J1939 drain (shield) should be grounded at one
point only. If grounded elsewhere, do not connect the
drain to the DGC-2020HD.
1
Note:
DGC-2020HD Typical Applications