User's Manual

PB050281602)GC1338-LR)

3-Phase)DIN)Rail)Master)Light)Controller)))))

Product)Brief)

Auto Network Applications

The GC1338/1338 is optimized for network topologies

such as star or tree configurations. Figure 3 shows a

simple hybrid PLC-RF network system implemented

with GC1338 connected with four modems installed in a

“Star” configuration. Figure 4 shows a hybrid “Tree”

network (PLC/ wireless modes) with GC1338.

Figure'3-'“Star”-Shaped'Network'

Figure'4'-'Hybrid'“Tree”'Structure'

Features

Besides being a 3-Phase PLC concentrator, the

GC1338 also provides RS485 connections and a set of

Digital Inputs and Digital Outputs.

• RS485

The RS485 connection provides an easy way to

interface the Master Light Controller with a laptop or

PC for configurations or debugging. The RS485 can

also be extended to connect with any RS485 device

(eg. RS485-Ethernet or RS485 sensors) to enable a

feature or function.

Figure'5-'RS485)

• Digital Inputs

The GC1338 provides four groups of Digital Inputs,

D1+ and D1-, D2+ and D2-, D3+ and D3-, D4+ and D4-

as in Figure 6. These are a pair of optically isolated,

polarity-sensitive digital inputs that you can use to

monitor switch and sensor devices. D+, D- and a

24VDC Out can be used in conjunction with a sensor

with FET or BIPOLAR output for active devices. The

24VDC Out supplies a DC 24V@350mA for the sensor

while D+ and D- are connected to the sensor output of

the FET or BIPOLAR transistors. These Digital Inputs

can be configured to enable an event to be triggered

based on the conditions set. (Please contact

gridComm, for future use only)

Figure'6-'Digital'Inputs'of'GC1338'