| Serial Interface | 
| 
2 RJ45 RS-232 Serial PortsBaud rate selectable from 300 to 230 Kbps1 screw terminal RS-422/485 interface on Serial Port 2 (2 and 4-wire support)LED indicators for TXD and RXD activities | 
| Serial Line Formats | 
| Characters | 7 or 8 data bits | 
| Stop Bits | 1 or 2 | 
| Parity | odd, even, none | 
| Flow Control | 
| Hardware | RTS/CTS | 
| Software | XON/XOFF | 
| Modem Control | 
|  | 
| Network Interface | 
| 
2 RJ45 10Base-T/100Base-TX Ethernet portsEmbedded, unmanaged, fully compliant 802.3u non-blocking Ethernet switchStore and forward architecture with 1K MAC address lookup tableAutomatic MDI/MDI-X crossoverFull duplex IEEE 802.3x flow controlHalf duplex back pressure flow controlIEEE 802.1d spanning tree | 
| LED Indicators | 
| 
TX/RX activity per serialLink/Activity per Ethernet portPower/System OK | 
| Management | 
| 
Internal web server (standard tunneling firmware only)SNMP (read only)Serial loginTelnet loginDeviceInstaller software | 
| Isolation | 
| 
8 kV direct contact, 15kV air discharge, ESD protection on all Serial ports (IEC 1000-4-2, IEC 61000-4-2)2 K VAC / 2.8K VDC galvanic isolation between Power Input port to Ethernet ports (except Chassis ground)2 K VAC / 2.8K VDC galvanic isolation between Power Input port to Serial portsTransient Voltage protection and ESD with max non-repetitive surge current 800 Amp (8/20 μs) (IEC 61000-4-2)2 K VA / 2.8K VDC galvanic isolation between Ethernet ports (except chassis ground)2 K VA / 2.8K VDC galvanic isolation between Ethernet ports to Serial ports40 A (5/50 ns) EFT protection (IEC 61000-4-4), 12 A (8/20 μs) lightning protection (IEC 61000-4-5) on all Ethernet ports | 
| Power Input | 
| 
Removable screw terminal block connector9-30 VDC or 9-24 VAC with chassis ground2.3 Watts maximum | 
| Environmental (Operating) | 
| Temperature | -40°C to +70°C (-40 to 158°F) | 
| Humidity | 20% to 90% relative humidity, noncondensing | 
| Agency Approvals | 
| 
UL, CSA, FCC, CE, TUV, CTick, VCCI, FM Class 1, Div. 2 | 
| Protocols Supported | 
| 
ARP, UDP/IP, TCP/IP, Telnet, ICMP, SNMP, DHCP, BOOTP, TFTP, and HTTP | 
| Installable Industrial Application Protocols | 
| 
ModBus TCP, ModBus ASCII/RTU, DF1 Multi-Master | 
| CPU | 
| 
Lantronix DSTNI-EX 48 MHz clock, 256 KB SRAM Internal CPU Memory | 
| Flash Memory | 
|  | 
| EEPROM | 
|  | 
| Reset | 
| 
Front panel recessed push button | 
| Packaging | 
| Case | High-impact plastic case with integrated DIN Rail (35 mm) mount - IP30 enclosure rating
 | 
| Dimensions (L x W x H) | 8.76 x 5.7 x 12.3 cm (3.45 x 2.25 x 4.85 in), terminal blocks included
 | 
| Weight | 0.21 kg (0.46 lb) | 
| Shipping Dimensions (L x W x H) | 
| 
18.7 x 22.9 x 11.1 cm (7.375 x 9.0 x 4.375 in) |