DT3000
Instruction Leaflet
I.B. 17555D
Effective: Date 07/02
Page 13
For more information visit:
www.cutler-hammer.eaton.com
Supersedes I.B. 17555C dated November 1999
Fig. 2-1 Typical Communications Wiring Diagram
FOR NETWORK INTERCONNECTION CABLE, SEE CABLE SPECIFICATIONS ON FIGURE 3-1.
REFER TO CIRCUIT BREAKER WIRING DIAGRAMS FOR ACTUAL CONNECTIONS.
CARBON COMPOSITION RESISTOR MUST BE INSTALLED ON THE MOST REMOTE DEVICDE AS SHOWN:
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150 OHM, ½ WATT FOR 1200 BAUD RATE COMMUNICATIONS.
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100 OHM, ½ WATT FOR 9600 BAUD RATE COMMUNICATIONS.
A CUTLER-HAMMER CONI (COMPUTER OPERATED NETWORK INTERFACE) OR CONI-3 CARD MUST BE INSERTED INTO
THE COMPUTER ISA BUS.
CUSTOMER TO SUPPLY A COMPUTER AND MODULAR TELEPHONE CONNECTOR TYPE RJ11 AND WIRE PER VIEW A.
GROUND SHIELDING AT ONE PLACE ONLY (COMPUTER END RECOMMENDED).
WHERE DEVICES ARE DAISY CHAINED, TIE SHIELDING TOGETHER FOR END-TO-END CONTINUITY, SOME PRODUCTS
WILL PROVIDE AN EXTRA TERMINAL FOR A TIE POINT FOR THE CABLE SHIELD LEADS.
CIRCUIT BREAKER TRUCK OPERATED CELL TOC SWITCH (SHOWN FOR CIRCUIT BREAKER IN “CONNECTED” POSITION)
IS OPTIONAL TO AUTOMATICALLY DISCONNECT RELAY FROM THE COMMUNICATION NETWORK WHEN CIRCUIT
BREAKER IS IN THE “TEST” POSITION.
LAST DEVICE IN NETWORK, TIE BACK SHIELD AND TAPE.
WHEN TOC SWITCH IS USED, DOWNLOADING OF PROTECTION SETTINGS FROM THE COMPUTER WILL NOT BE
POSSIBLE WITH BREAKER IN THE “TEST” POSITION.
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