Technical data 193 Technical data of the NETA-21 and the NEXA-21Mounting On a 35-mm / 1.4-inch DIN railDegree of protection IP20Ambient conditions Applicable ambient conditions specified for the drive in its manuals are in effect.• Operating temperature: -5…+60 °C / -23…+140 °F (free air circulation)Indicators 9 + 4 bi/tricolor LEDsConnectors Power supply input (X1)• Signal level: 10 … 30 V DC, max. 2 A (typical: 200mA @ 24 V / 500 mA @ 12 V)• Connector type: Shrouded header for the wire plug, 2 pins, pitch 5.00 mm / 0.19inchPanel bus port 1 (PNL 1) and 2 (PNL 2)• Bus voltage: 5 V• Signal level: EIA-485• Communication protocol: Panel bus over EIA-485• Cable type: Ethernet CAT5, straight• Connector type: Shielded 8P8C modular jack (RJ45)• Maximum segment length: 100 m / 328 ftEthernet port 1 (ETH 1) and 2 (ETH 2)• Media: 10Base-T / 100Base-TX (10 Mbit/s or 100 Mbit/s)• Cable type: Shielded twisted pair (STP), both straight-through and crossover cablesare supported (HP Auto-MDIX).• Connector type: Shielded 8P8C modular jack (RJ45)• Termination: Internal• Maximum segment length: 100 m / 328 ftEIA-232 Port (X2)• Physical layer: EIA-232, galvanic isolated• Connector type: D-sub 9-pin maleEIA-485 Port (X3)• Bus voltage: 5 V• Medium: Shielded twisted pair cable, impedance 100…150 ohm• Serial communication type: Asynchronous, half-duplex RS-485• Physical layer: EIA-485, galvanic isolated• Communication protocol: Modbus• Connector type: Shrouded header for the wire plug, pitch 5.00 mm / 0.19 inch• Maximum length: 1200 m / 3 937 ftSD/SDHC connector• Supports up to a 32-GB SD/SDHC cardUSB host ports• PHY Interface: USB2.0• Connector type: Shielded USB Type AFiber optic transmitter/receiver• Media: Fiber optic cable (max. 10 Mbit/s)• Protocol: Distributed Drives Communication System ()• Connectors: Dark gray – receiver; gray – transmitterPower supply • Primary power supply input: 10…30 V DC, max. 3 A• Secondary power supply input: AC/DC 24 V ± 10%, max. 1 A (rms). For redundantpower supplies via extension modules.• Power supply output: 5 V, 700 mA for external option modules. Short circuitprotected.General • Battery replacement interval: 5 years at 25 °C / 77 °F• Complies with EMC standards IEC 61000-6-2 and IEC 61000-6-4• All materials are UL-approved