Our NPort device servers make your serial devices network-compatible in no time at all. Their compact size makes them ideal for connecting devices such as card readers and payment terminals to an IP-based Ethernet LAN.

2-Port RS-422/485 device server with 2 kV optical isolation, -40 to 75°C operating temperature

Ethernet interface
10/100BaseT(X) ports (RJ45 connection)
– 1
Magnetic isolation protection
– 1.5 kV (built-in)

Ethernet Software Features
Management
– DHCP Client
– IPv4
– SNTP
– SMTP
– SNMPv1
– DNS
– HTTP
– ARP
– BOOTP
– UDP
– TCP/IP
– Telnet
– ICMP
Windows Real COM Drivers
– Windows 11, 10, 8.1, 8, 7, Vista, XP, ME, 98 and 95
– Windows Server 2022, 2019, 2016, 2012 R2, 2012, 2008 R2, 2008, 2003, 2000 and NT
– Windows Embedded CE 6.0 and 5.0, Windows XP Embedded
Linux Real TTY Drivers
– Kernel versions: 6.x, 5.x, 4.x, 3.x, 2.6.x and 2.4.x
Fixed TTY Drivers
– macOS versions: 14, 13, 12, 11 and 10.1x
– SCO UNIX, SCO OpenServer, UnixWare 7, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i, Mac OS X
Arm®-based platform support
– Windows 11
– Linux Kernel 6.x, 5.x and 4.x
– macOS 14, 13, 12 and 11
Virtual Machine
– VMWare ESXi (Windows 11/10)
– VMware Fusion (Windows on macOS 14, 13, 12, 11 and 10.1x)
– Parallels Desktop (Windows under macOS 14, 13, 12, 11 and 10.1x)
Android API
– Android 3.1.x and higher
MIB
– RFC1213, RFC1317

Security functions
Authentication
– Local database (password only)

Serial interface
Connection
– Terminal block
Number of ports
– 2
Serial standards
– RS-422
– RS-485
Operating modes
– Disabled
– Ethernet Modem
– Pair Connection
– Real COM
– Reverse Telnet
– TCP Client
– TCP Server
– UDP
Baud rate
– Supports standard baud rates (unit=bps): 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230400
Data bits
– 5, 6, 7, 8
Stop bits
– 1, 1.5, 2
Parity
– None, Even, Odd, Space, Mark
Flow control
– XON/XOFF
Pull high/low resistor for RS-485
– 1 kilo-ohm (fixed value)
RS-485 data direction control
– ADDC (automatic data direction control)
Isolation
– 2 kV

Serial signals
RS-422
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
– Data+, Data-, GND

Performance parameters
Input current
– 365 mA @ 12 VDC
Input voltage
– 12 to 48 VDC
No. of current inputs Current inputs
– 1
Power connection
– 1 removable 3-contact terminal block(s)

Reliability
Automatic reboot trigger
– Built-in WDT
Alarm tools
– Built-in buzzer and RTC (real-time clock)

Physical characteristics
Housing
– Metal
Dimensions (with ears)
– 90 x 100.4 x 35 mm (3.54 x 3.95 x 1.37 in)
Dimensions (without ears)
– 67 x 100.4 x 35 mm (2.64 x 3.95 x 1.37 in)
Weight
– 380 g (0.84 lb)
Installation
– Desktop mounting
– DIN rail mounting (with optional kit)
– Wall mounting

Environmental conditions
Operating temperature
– -40 to 75°C (-40 to 167°F)
Storage temperature (in packaging)
– -40 to 75°C (-40 to 167°F)
Relative humidity
– 5 to 95% (non-condensing)

Standards and certifications
EMC
– EN 55032/35
EMI
– CISPR 32, FCC Part 15B Class A
EMS
– IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
– IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
– IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV
– IEC 61000-4-5 Surge: Power: 1 kV
– IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m
-IEC 61000-4-8 PFMF
– IEC 61000-4-11
Safety
– UL 60950-1
Maritime
– DNV

Declaration
Environmentally friendly product
– RoHS, CRoHS, WEEE

MTBF
Time
– 309.383 hours
Standards
– Telcordia (Bellcore) Standard TR/SR