Basler Electric DGC-2020HD - Manual (Page 35)

9469300990 Rev B 25
Optional Remote Display Panel Connections
Terminals are provided for connection with the optional remote display panel (Basler P/N 9318100114
projection mount or 9318100115 flush mount). These terminals provide dc operating power to the remote
display panel and enable communication between the DGC-2020HD and the remote display panel.
Twisted-pair conductors are recommended for making the connections between the DGC-2020HD and
remote display panel. Communication may become unreliable if the connection wires exceed 1,219 m
(4,000 ft). Table 19 lists the DGC-2020HD terminals that connect to the remote display panel.
Table 19. Remote Display Panel Interface Terminals
Terminal Description
61 (RDP TxD +) Remote display panel communication terminal (TxD +)
62 (RDP TxD –) Remote display panel communication terminal (TxD –)
49 (BATT–) Remote display panel power terminal DC COM (–)
48 (BATT+) Remote display panel power terminal 12/24 (+)
Connectors
USB Interface
A mini-B USB jack enables local communication with a PC running BESTCOMSPlus ® software. The
DGC-2020HD is connected to a PC using a standard USB cable equipped with a type A plug on one end
(PC termination) and a mini-B plug on the other end (DGC-2020HD termination).
Ethernet Communications
Dual copper RJ-45 jacks or a BNC fiber optic port provide Ethernet communications between the DGC-
2020HD and a PC via BESTCOMSPlus or other DGC-2020HDs in a network. An Ethernet connection to a
PC running BESTCOMSPlus provides remote metering, setting, annunciation, and control of the DGC-
2020HD. Ethernet communication between DGC-2020HDs allows for generator sequencing on an
islanded system.
RS-232 Interface
A male DB-9 connector allows the DGC-2020HD controller to connect to an external, user-supplied dial-
out modem via the RS-232 interface. The modem enables the DGC-2020HD to dial up to four pager
telephone numbers and annunciate conditions selected by the user. These conditions include any DGC-
2020HD alarm or pre-alarm, closure of any programmable contact input, and an active cool down timer.
DGC-2020HD Terminals and Connectors