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4009 IDNet NAC Extender, Continued <br /> System Switches and AC Power Indicator(LED 9) <br /> Indicators, continued <br /> This green LED indicates that AC power is present and is being used as the 4009 <br /> IDNet power source. The 4009 IDNet is switched to batteries whenever the <br /> green LED is"OFF". <br /> CAUTION: The green AC LED indicates"Good AC Power". In the <br /> event of a brownout condition,the unit will switch to <br /> battery power but lethal voltages may still exist. <br /> DISCONNECT POWER BEFORE SERVICING. <br /> 4009 IDNet Option Interfaces The 4009 IDNet supports several optional add-on cards.Connectors are <br /> provided on the base assembly of the 4009 IDNet System Board(565-771)to <br /> support the available option cards. Optional hardware must be configured with <br /> the Hardware Configuration DIP Switch SW1 for proper system operation. <br /> Class A Adapter Option Card(565-789) <br /> The Class A Adapter Option Cards(see Figure 4)plug into connectors P1 and <br /> • P2 located on the 4009 IDNet system Board(see Figure 4). One Class A <br /> Adapter Option Card provides Class A/Style Z functionality on two NACs. <br /> Refer to the 4009-9808 Class A Adapter Option Card Installation Instructions <br /> (574-326)for detailed information on installing this option card. <br /> NAC Option Card(565-828) <br /> The 4-ciruit NAC Card is an option card for the 4009 IDNet. Refer to the 4009 <br /> 9807 NAC Option Card Installation Instructions(574-325)for detailed <br /> information on installing this option card. The NAC option card provides four <br /> additional hardwired NACs to the 4009 IDNet base configuration of four NACs. <br /> Each of the four NACs on the NAC option card is functionally equivalent to the <br /> NACs on the 4009 system board,except that the option NACs are rated at 1.5 <br /> amps.The NAC option card plugs into connector P4(see Figure 4)on the 4009 <br /> system board. The NACs are configurable as"Class A"circuits with the addition <br /> of Class A Adapter Option Cards that connect to the two Class A adapter connector <br /> interfaces located on the NAC Option Card. The NAC Option Card signal power <br /> for the four NACs is received from 4009 IDNet system board connector P7(see <br /> Figure 4)using wiring harness 733-972. <br /> IDNet Repeater Option Card(565-773) <br /> The IDNet Repeater Card is an option card for the 4009 IDNet. The IDNet <br /> Repeater Option Card takes the IDNet signal that the 4009 IDNet receiver has <br /> received,and retransmits it on its output side at host panel IDNet levels. The <br /> IDNet Repeater Option Card is used in IDNet mode only(SWl/Position 8 OFF). <br /> Refer to the 4009 IDNet Repeater Option Card Installation Instructions(574- <br /> 327)for detailed information on installing this option card. The IDNet Repeater <br /> Option Card connects via a 14-pin header to 4009 IDNet system board connector <br /> P6(see Figure 4). <br /> Continued on next page <br /> 9 <br /> Technical !Manuals Online! - http://vwvw.tech-man.com <br />