GE DS200ACNAG1A ARCNET Connection Card

GE DS200ACNAG1A ARCNET Connection Card

Part Number DS200ACNAG1A Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark V Function Module Availability In StockDS200ACNAG1A is an ARCNET LAN Connections Board manufactured by General Electric as a part of the Mark V series used in gas turbine control systems. The ACNA terminal board serves as the connection for the ARCNET data link between the main controller, IOS, protection module, and mark V turbine control panel. Termination is made using a coaxial cable. Each ACNA can terminate two coaxial cables. 

Connector ARCPL is used only on the ARCNET model. The ARCNET Board is a simple PCB with two BNC connectors that are readily installed and removed on a Mark V or EX2000 drive system because it is located externally. Four metal film resistors (R1/R2/R3/R4), two transistors, one diode, and three capacitors (C1/C2/C3) are among the components. Two apertures rimmed with metal cut into either side of the card make up the board. GND1 and GND2 are the designations for these. Two communications relay devices are located in the center of the board. Relay schematics are printed on the upper surface of both components. 

 A single six-pin male vertical pin terminal connector is located along the centerline of the board, and two female BNC plugs complete the ARCNET Connection Card. These plugs are intended to make LAN communication easier. TXA(-) - Transmitting and receiving signals, Channel A TXA(+) - Transmitting and receiving signals Channel A TXB(-) - Transmitting and receiving signals Channel B TXB(+) - Transmitting and receiving signals Channel B P5 - Power +5 V DC DCOM - Power Digital Common TXB - Transmitting signal selected by JP15 as isolated DLAN Circuit or RS-422 TXA - Receiving signal selected by JP15 as isolated DLAN Circuit or RS-422CARD.

Hardware Tips and Specifications

It is important to note that conventional ARCNET systems, including this DS200ACNAG1A model, operate at a rate of 2.5 Mbps. This allows a signal on the network to happen in approximately 400 ns. This timing limits the size of an ARCNET system, which cannot, realistically, be longer than four miles; any longer than this, the system will begin to experience extended timeouts when messages are sent between nodes. The DS200ACNAG1A has very few components, considering its very small circuit board size. Some relevant components include:

four metal film resistors (R1/R2/R3/R4,)

two transistors,

one diode,

and three capacitors (C1/C2/C3.) 

Benefits

 Single slot CPU 

 Provides 1 Mbyte of battery-backed memory in the same slot (up to 512 Kbytes available for use by ladder diagram application program)  Supports floating point calculations 

 Up to 12K discrete inputs and outputs (any mix - simplex mode only); 2048 voted discrete inputs, 2048 voted discrete outputs Up to 8K analog inputs (simplex mode only) and 8K analog outputs (simplex mode only); 1024 voted analog inputs 

 0.4 microseconds per boolean function 

 64 MHz, 80486DX2 microprocessor 

 Supports IC660/IC661 I/O (and IC697 I/O in simplex mode only) 

 Programmed by MS-DOS

, or Windows

 software products running on Windows

 95 or Windows NT

 over Ethernet TCP/IP or through the SNP port. 

 Configurable data and program memory 

 Battery-backed calendar clock 

 Three position operation mode switch 

 Password controlled access 

 Remote programmer keyswitch memory protection 

 Four status LEDs 

 Software configuration (No DIP switches or jumpers) 

 Reference information inside front door 

 In-system upgradable firmware