Net2 access control unit - IP Way
Net2 access control unit - IP Way
Net2 access control unit - IP Way
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Chapter 3 About…<strong>Net2</strong> <strong>access</strong> <strong>control</strong> <strong>unit</strong>Readers/keypadsPower suppliesInputs and outputsUser tokensDesktop readerNetworkPC<strong>Net2</strong> <strong>access</strong> <strong>control</strong> <strong>unit</strong> – hardware features• 16Bit Micro-<strong>control</strong>ler running at 14.7MHz• 128K FLASH Memory with over 100 years data retention• 1 x 128K static RAM chips• On board rechargeable 3.6V battery – approximately 1 weeks dataretention• On board real time clock with year 2000 compliant software• Quiescent current of ACU at 12Vdc is between 50 and 350mAdepending on what is functioning on the board• RS485 Coms chip with full duplex communication at 115K BAUD• Terminal blocks rated at >100 uses with rising clamp connectors• On-board static protection:Figure 3.1Table showing boardprotectionComs chipInputsMosorb protected – clamped to 15V above ground(Will dissipate 1500W)Diode protected12V dc input Mosorb protected – clamped to 27V above groundCapacitor smoothed – capacitor can supply boardfor 0.25 seconds• Outputs:Figure 3.2Table showing outputs2 x clean contact relays 24V, 5Amps1 x FET output Variable voltage,1AmpChapter 3 About 11
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