Model Number of serial ports
NS-2250-16 16 ports
NS-2250-32 32 ports
NS-2250-48 48 ports


Front of NS-2250


 Rear of NS-2250



ower voltage AC100V-240V±10%
Power frequency 50/60Hz±3Hz
Current consumption AC 100 V: 0.32 A (maximum)
AC 240 V: 0.18 A (maximum)
Power consumption AC 100 V: 17 W (maximum)
AC 240 V: 17 W (maximum)
Dimensions Width 425.5mm
Depth 261.1mm
Height 43.7mm
Weight About 3.4 kg
Environmental conditions Operation 5 to 40 °C, 15 to 85% RH (no condensation)
Storage -10 to 60 °C, 90% RH or less (no condensation)

Supported standards

Item Standards / Regulations
Safety IEC 62368-1:2014 (2nd Edition)
EN 62368-1:2014 + A11:2017 (2nd Edition)
UL 62368-1:2014(2nd Edition)
Emissions FCC Part15, Subpart B Class A
EN 55032:2012 Class A
EN 61000-3-2:2014
EN 61000-3-3:2013
Immunity EN 55024:2010
EN 61000-4-2:2009
EN 61000-4-3:2006+A1:2008+A2:2010
EN 61000-4-4:2012
EN 61000-4-5:2006
EN 61000-4-6:2009
EN 61000-4-8:2010
EN 61000-4-11:2004


Port Access Telnet/SSHv2/IPsec(Tunnel mode)
Direct mode/Select mode
Simultaneously access by multiple users per port
Authentication local user, TACACS+, RADIUS
Storing port logs to RAM, internal flash memory, NFS
Sending port logs to syslog, e-mail(SMTP), FTP, TFTP

 Package contents

  •  Rack mount bracket
  •  NS-354 DB9-RJ45 Adapter
  •  Ethernet Cable
  •  USB memory / strap clamp
  •  AC power cable clamp
  •  Readme first