Basler Electric DGC-2020 - Manual (Page 69)

Table 2-2. Descriptions for Figure 2-6. Rear Panel for DGC-2020 Hardware Version 3
Locator Description
A Connections to the DGC-2020 Start (starter), Run (fuel solenoid), and Pre (glow plug)
output contacts are made directly to each relay through quarter-inch, male, quick-connect
terminals.
B The majority of external, DGC-2020 wiring is terminated at 15-position connectors with
compression terminals. These connectors plug into headers on the DGC-2020. The
connectors and headers have a dovetailed edge that ensures proper connector
orientation. Each connector and header is uniquely keyed to ensure that a connector
mates only with the correct header. Connector screw terminals accept a maximum wire
size of 12 AWG.
Bus sensing terminal 76 (BUS VA) is internally tied to terminal 45 (BUS VA) and terminal
78 (BUS VB) is internally tied to terminal 43 (BUS VB). This maintains backward
compatibility with hardware versions 1 and 2 of the DGC-2020.
C The DGC-2020 provides a battery backup for the real-time clock. See Section 8,
Maintenance and Troubleshooting, for instructions on replacing the battery. Failure to
replace the battery with Basler Electric P/N 38526 may void the warranty.
D The mini-B USB socket mates with a standard USB cable and is used with a PC running
BESTCOMSPlus
® software for local communication with the DGC-2020.
E DGC-2020 controllers equipped with the optional external modem port, connect to the
user-supplied modem using a standard RS-232 cable.
9400200990 Rev X DGC-2020 Human-Machine Interface 2-29