Logic timers, Communication interface, Rs-485 (optional) – Winco DGC-2020 User Manual
Page 21: Canbus, Modem (optional), Real-time clock, Clock holdup, Logic timers -9, Communication interface -9, Usb -9
Logic Timers
Range:
0 to 10 s
Increment: 0.1
s
Accuracy:
15 ms
Communication Interface
USB
Specification Compatibility:
USB 2.0
Data Transfer Speed:
9600 baud
Connector Type:
Mini-B jack
RS-485 (Optional)
Baud:
9600
Data Bits:
8
Parity:
None
Stop Bits:
1
Terminals:
14 (A), 13 (B), and 12 (shield)
CANbus
Differential Bus Voltage:
1.5 to 3 Vdc
Maximum Voltage:
–32 to +32 Vdc with respect to negative battery terminal
Communication Rate:
250 kb/s
Terminals:
48 (low), 49 (high), and 50 (shield)
NOTES
1.) If the DGC-2020 is providing one end of the J1939 bus, a 120
terminating
resistor should be installed across terminals 48 (CANL) and 49 (CANH).
2.) If the DGC-2020 is not part of the J1939 bus, the stub connecting the DGC-
2020 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-2020.
Modem (Optional)
Connector Type:
RJ-11 jack
Real-Time Clock
Clock has leap year and selectable daylight saving time correction. Backup capacitor and optional backup
battery sustain timekeeping during losses of DGC-2020 operating power.
Resolution: 1
s
Accuracy:
1.73 s/d at 25C
Clock Holdup
Battery Holdup Time (Optional):
Approximately 10 yrs
Battery Type:
Rayovac BR2032, lithium, coin-type, 3 Vdc, 195 mAh
Basler Electric P/N 38526
NOTE
Failure to replace the battery with Basler Electric P/N 38526 may void the
warranty.
9400200990 Rev K
DGC-2020 General Information
1-9