NPORT 5250A-T - 2-port RS-232422485 device server, -40 to 75C operating temperature

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-232/422/485 device server, -40 to 75°C operating temperature

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

Ethernet software features
- Configuration options: Serial console
- Management:
ARP
BOOTP
DHCP Client
DNS
HTTP
HTTPS
ICMP
IPv4
LLDP
SMTP
SNMPv1/v2c
Telnet
TCP/IP
UDP
- Filter IGMP v1/v2
- 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 on macOS 14, 13, 12, 11 and 10.1x)
- Android API: Android 3.1.x and higher
- MIB: RFC1213, RFC1317

Security functions
- Authentication: Local database
- Encryption: AES-128
RSA-1024
SHA-256
HTTPS
SHA-1
- Security protocols: HTTPS (TLS 1.2)

Serial interface
- Connector: DB9 connector
- Number of ports: 2
- Serial standards: RS-232, RS-422, RS-485
- Operating modes:
Disabled
Ethernet modem
Pair connection
Real COM
Reverse Telnet
RFC2217
TCP Client
TCP Server
UDP
- Baud rate: Supports standard baud rates (unit=bps): 50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230.4k, 460.8k, 921.6k
- Data bits: 5, 6, 7, 8
- Stop bits: 1, 1.5, 2
- Parity: None, Even, Odd, Space, Mark
- Flow control:
RTS/CTS (RS-232 only)
DTR/DSR (RS-232 only)
- Pull high/low resistance for RS-485: 1 kilo-ohm, 150 kilo-ohm
- RS-485 data direction control: ADDC (automatic data direction control)
- Terminating resistor for RS-485: 120 Ohm

Serial signals
- RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
- 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: 119 mA @ 12 VDC
- Input voltage: 12 to 48 VDC
- Number of power inputs: 2
- Power connection:
1 removable 3-contact terminal block(s)
Power input socket

Reliability
- Automatic reboot trigger: built-in WDT

Physical characteristics
- Housing: metal
- Dimensions (with ears): 100 x 111 x 26 mm (3.94 x 4.37 x 1.02 in)
- Dimensions (without ears): 77 x 111 x 26 mm (3.03 x 4.37 x 1.02 in)
- Weight: 340 g (0.75 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 (including packaging): -40 to 75°C (-40 to 167°F)
- Ambient relative humidity: 5 to 95% (non-condensing)

Standards and certifications
- EMC: EN 55032/35
- EMS:
IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV
IEC 61000-4-5 Surge: Power: 2 kV; Signal: 1 kV
IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m
IEC 61000-4-8 PFMF
IEC 61000-4-11
- EMI: CISPR 32, FCC Part 15B Class A
- Safety: UL 60950-1

Declaration
- Environmentally friendly product: RoHS, CRoHS, WEEE

MTBF
- Time: 847.750 hours
- Standards: Telcordia (Bellcore) Standard TR/SR