GE DS200ACNAG1A DS200ACNAG1ADD ARCNET Board

This GE DS200ACNAG1A DS200ACNAG1ADD ARCNET Board manages high-speed deterministic communication between Mark V controllers. The board implements the ARCNET protocol for real-time data exchange across the system. You will find this component in many GE turbine control networks. The DS200ACNAG1ADD variant includes a conformal coating for moisture-prone installations.

Technical Specifications

Parameter	Specification
Full Model	GE DS200ACNAG1A DS200ACNAG1ADD ARCNET Board
Category	ARCNET Board
Communication Protocol	ARCNET (ANSI 878.1)
Data Rate	2.5 Mbps
Interface Type	Coaxial (BNC) or Fiber Optic
Maximum Nodes	255 per Network Segment
Packet Size	0 to 508 Bytes
Dimensions (H x W)	230 mm x 150 mm
Weight	Approximately 0.65 kg
Connectors	2 x BNC, 1 x Fiber Optic Transceiver
Component Count	134 Discrete Components
Energy Storage	3 x 33 µF Decoupling Capacitors

Network Protocol and Data Handling

The GE DS200ACNAG1A DS200ACNAG1ADD ARCNET Board uses token passing to avoid data collisions. Each node waits for the token before transmitting any information. The board handles CRC error checking and automatic retransmission of corrupted packets. Furthermore, it supports both coaxial and fiber optic physical media. Consequently, you can build networks up to 4 km using fiber optic cables.

Installation and Connection Steps

Mount this GE DS200ACNAG1A DS200ACNAG1ADD ARCNET Board in any Mark V rack slot. First, connect the coaxial cable to the BNC connector for electrical networks. Alternatively, attach fiber optic cables for longer distances up to 4 km. After that, set the node ID using the eight-position DIP switch. Finally, apply power and verify the network status LED illuminates green.

Energy Discharge and Safety Notice

This GE DS200ACNAG1A DS200ACNAG1ADD ARCNET Board stores minimal energy in its capacitors. However, you must wait 30 seconds after power removal before handling. The three decoupling capacitors discharge through internal resistors during this time. Never disconnect network cables while the board remains powered.

Status Indication and Diagnostics

A green LED indicates normal network activity and token passing. A yellow LED flashes when this board transmits data packets. A red LED signals a node ID conflict or cable fault. These indicators help technicians resolve network issues quickly without special analyzers.