Basler DGC-2020 Instruction Manual page 157

CAN Interface
These terminals provide communication using the SAE J1939 protocol or the MTU/MDEC protocol and
provide high-speed communication between the DGC-2020 and an ECU on an electronically controlled
engine. Connections between the ECU and DGC-2020 should be made with twisted-pair, shielded cable.
CAN interface terminals are listed in Table 6-10.
Terminal
48 (CAN L)
49 (CAN H)
50 (SHIELD)
1.) If the DGC-2020 is providing one end of the J1939 backbone, a 120 Ω
terminating resistor should be installed across terminals 48 (CANL) and 49
(CANH).
2.) If the DGC-2020 is not part of the J1939 backbone, the stub connecting the
DGC-2020 to the backbone should not exceed 914 mm (3 ft) in length.
3.) The J1939 drain (shield) should be grounded at one point only. If grounded
elsewhere, do not connect the drain to the DGC-2020.
Dial-Out Modem
DGC-2020 controllers with style number xxxxxMxxx have an internal modem with dial-in, dial-out
capability. The DGC-2020 connects to a standard-device telephone line through a USOC RJ-11C jack.
RDP-110 Connections
Terminals are provided for connection with the optional RDP-110 remote display panel. These terminals
provide dc operating power to the RDP-110 and enable communication between the DGC-2020 and
RDP-110. Twisted-pair conductors are recommended for connecting the communication terminals of the
DGC-2020 and RDP-110.
Table 6-11 lists the DGC-2020 terminals that connect to the RDP-110.
Terminal
4 (RDP BATT+)
5 (RDP BATT–)
6 (RDP TXD–)
7 (RDP TXD+)
Connections for Typical Applications
Connections for typical applications including 3-Phase Wye (Figure 6-3), 3-Phase Delta (Figure 6-4),
Single-Phase A-B (Figure 6-5), and Single-Phase A-C (Figure 6-6) are shown on the following pages.
9400200990 Rev I
Table 6-10. CAN Interface Terminals
CAN low connection
CAN high connection
CAN drain connection
NOTES
Table 6-11. RDP-110 Interface Terminals
RDP-110 terminal 12/24
RDP-110 terminal DC COM
RDP-110 terminal 485–
RDP-110 485+
DGC-2020 Installation
Description
Connects To:
6-7