1 • Introduction Model 3092 iDSL DACS Getting Started Guide16 Hardware overviewLANThe 10/100-Mbps Ethernet LAN port is presented on an RJ-45 connector with an auto-sensing/full-duplex10Base-T or 100Base-TX interface. Also included are:• 100Base-TX half-/full-duplex operation (100 + 100)• 10Base-T half-/full-duplex operation (10 + 10)• Auto detection and fallback• 10/100 Mbps link and status indicatorsRS-232 control port• The RS-232 port provides for initial configuration of the Model 3092. The RS-232 port supports:• Asynchronous data rates of 19.2 kbps• An RJ-45 connector with EIA-561 (RS-232) pinouts• A management interface (such as HyperTerminal) that supports VT-100 terminals• Hardware CD and DTR signals for external modemsPower system• Internal dual-redundant, load-sharing power supplies• Universal-input voltage range, 100–240 VAC, 50/60 Hz via IEC-320 connectors, rated current is 2A• Optional DC power supply with -40 to -72VDC via 4-way power block, rated current is 1ACentral processing unitThe 3092 employs an Intel i960VH RISC processor operating at 33 MHz/100 Mips. The CPU controls thememory, front/back-panel and management interface for iDSL port/WAN time slot mapping, local switch-ing, loopback and the management system. The memory holds:• 4 Mbytes Flash ROM• 8 Mbytes EDO DRAMiDSL PortsThe 24 iDSL ports operate at any DTE rate supported by the remote modem via an RJ-21X 50-pin telco con-nector. Each port uses a single 2-wire twisted pair for full-duplex communication. The iDSL ports can be con-centrated into TDM data output on the WAN ports. Other features include:• 2B1Q line encoding.• Built-in surge protection.• iDSL configuration parameters and line status indicators accessible to upper-level utility or application software.Alarm PortThe alarm port is used to notify the operator that a pre-defined alarm has occurred. The principal features are• User-defined alarm condition configured through the NMS• User selectable major and minor alarms for iDSL, WAN, system clock, power, and over-temperature.