Basler Electric DGC-2020ES - Manual (Page 102)

94 9469200990 Rev C
Note
1. If the DGC-2020ES is providing one end of the J1939 bus, a
120
Ω, ½ watt terminating resistor should be installed across
terminals 14 (CANL) and 13 (CANH).
2. If the DGC-2020ES is not providing one end of the J1939 bus, the
stub connecting the DGC-2020ES to the bus should not exceed
914 mm (3 ft) in length.
3. The maximum bus length, not including stubs, is 40 m (131 ft).
4. The J1939 drain (shield) should be grounded at one point only. If
grounded elsewhere, do not connect the drain to the DGC-
2020ES
Optional Remote Display Panel Connections
Terminals are provided for connection with the optional Remote Display Panel. These terminals provide
dc operating power to the Remote Display Panel and enable communication between the DGC-2020ES
and Remote Display Panel. Twisted-pair conductors are recommended for connecting the communication
terminals of the DGC-2020ES and Remote Display Panel. Communication may become unreliable if the
connection wires exceed 1,219 m (4,000 ft). Table 19 lists the DGC-2020ES terminals that connect to the
Remote Display Panel.
Table 19. Remote Display Panel Interface Terminals
Terminal Description
10 (RDP TxD–) Remote Display Panel terminal (TxD–)
11 (RDP TxD+) Remote Display Panel terminal (TxD+)
17 (BATT–) Remote Display Panel terminal DC COM (–)
18 (BATT+) Remote Display Panel terminal 12/24 (+)
Terminals and Connectors DGC-2020ES