GE DS200LDCCH1A DS200LDCCH1ARA LAN Communication

Key Technical Specifications

This GE DS200LDCCH1A DS200LDCCH1ARA board operates from a 24V DC power supply. It provides two LAN communication ports for system networking. The unit measures 20 cm in length, 14 cm in width, and 3.5 cm in height. Its total weight equals 0.5 kg without any packaging materials.

The GE DS200LDCCH1A DS200LDCCH1ARA includes one Ethernet port and one RS-485 port. Additionally, it features one USB configuration port for local setup. A single 6-pin terminal block connects the DC power input. The board contains 1 processor, 1 Ethernet controller, 2 UARTs, 4 optocouplers, and 16 resistors.

Parameter	Value
Power Supply	24V DC ±10%, 200mA
Ethernet Port	1 (RJ45, 10/100 Mbps)
RS-485 Port	1 (terminal block, up to 115.2 kbps)
USB Port	1 (Type B, for configuration)
Dimensions (L x W x H)	20 cm x 14 cm x 3.5 cm
Weight	0.5 kg
RS-485 Termination	Jumper selectable (120 ohm)
Protocol Support	Modbus TCP, Modbus RTU
Power Connector	6-pin terminal block
Status LEDs	4 units (Power, Link, Activity, Fault)
Processor	1 unit (32-bit, 100 MHz)
Ethernet Controller	1 unit
UARTs	2 units
Optocouplers	4 units (RS-485 isolation)
Resistors	16 units
Capacitors	12 units
Energy Storage	100 µF at 35V

GE DS200LDCCH1A DS200LDCCH1ARA stores energy using one electrolytic capacitor. This capacitor provides 100 µF at 35V rating for transient filtering. Consequently, the board maintains communication during 20 millisecond power interruptions. Therefore, data packets remain intact through brief voltage sags.

Design and Integration

Both the GE DS200LDCCH1A and DS200LDCCH1ARA versions share identical LAN circuitry. These boards use four-layer PCB construction with isolated RS-485 lines for noise immunity. Consequently, the GE DS200LDCCH1A DS200LDCCH1ARA operates reliably from -10°C to +55°C ambient temperature.

For installation, you need M3 screws for the four mounting holes. The board draws 150 mA typical current from the 24V DC supply. The RS-485 port supports 32 nodes on a single network segment. We recommend using shielded twisted-pair cables for all serial connections.

Practical Application

This LAN communication board connects turbine controls to plant Ethernet networks. It translates Modbus RTU requests from legacy equipment to Modbus TCP. The GE DS200LDCCH1A DS200LDCCH1ARA also provides a USB port for local configuration and diagnostics. Therefore, it bridges modern Ethernet networks with older serial field devices.