NPORT 6250-M-SC - 2-port RS-232422485 on multimode fibre optic (SC connection), secure device server

Moxa's terminal servers are equipped with the specialised functions and security features required to establish reliable terminal connections to a network and can connect various devices such as terminals, modems, data switches, mainframes and POS devices to make them available to network hosts and processes.

2-Port RS-232/422/485 to multi-mode fibre optic (SC connector) secure device server

Memory
SD slot
- Up to 32 GB (SD 2.0 compatible)

Ethernet interface
100BaseFX ports (multi-mode SC connector)
- 1
Magnetic isolation protection
- 1.5 kV (built-in)

Ethernet software functions
Configuration options
- Web console (HTTP/HTTPS)
- Windows utility
- Device Search Utility (DSU)
- MCC tool
- Serial console
- Telnet/SSH-Console Telnet/SSH console
Administration
- ARP
- BOOTP
- DHCP Client
- DNS
- HTTP
- ICMP
- IPv4/IPv6
- LLDP
- PPPOE
- SMTP
- SNMPv1/v2c/v3
- SNTP
- TCP/IP
- Telnet
- UDP
Windows Real COM driver
- Windows 11/10/8/8/7/Vista/XP1/8/7/Vista/XP/ME/98/95
- Windows Server 2022/2019/2016/2012 R2/2012/2008 R2/2008/2003
- Windows Embedded CE 6.0/5.0, 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: 11.x, 10.12 to 10.15
- SCO UNIX, SCO OpenServer, UnixWare 7, QNX 4.25, QNX 6.x, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i, Mac OS X
Arm®-based platform support
- Linux Kernel 5.x/4.x
Virtual machine
- VMWare ESXi (Windows 11/10)
- VMware Fusion (Windows on macOS 10.12 to 11.x)
- Parallels Desktop (Windows on macOS 10.12 to 11.x)
Android API
- Android 3.1.x and higher
Time management
- SNTP client
MIB
- MIB-II
Unicast routing
- RIPV1/V2
- Static route

Security functions
Authentication
- Local database
- RADIUS - TACIUS RADIUS
- TACACS+
Encryption
- HTTPS
- AES-128
- AES-256
- HMAC
- RSA-1024
- SHA-1
- SHA-256
- SHA-384
Security protocols
- HTTPS (TLS 1.2)
- SNMPv3
- SSHv2

Serial interface
Connection
- DB9 male
No. of ports Ports
- 2
Serial standards
- RS-232
- RS-422
- RS-485
Secure operating modes
- Reverse SSH
- Secure Pair Connection
- Secure Real COM
- Secure TCP Client
- Secure TCP Server
- SSH
Standard operating modes
- Disabled
- Ethernet Modem
- Pair Connection
- PPP
- Printer
- Real COM
- Reverse Telnet
- RFC2217
- TCP Client
- TCP Server
- Terminal
- UDP
Baud rate
- 50 bps to 921.6 kbps (supports non-standardised baud rates)
Data bits
- 5, 6, 7, 8
Stop bits
- 1, 1.5, 2
Flow Control
- RTS/CTS
- DTR/DSR
- XON/XOFF
Parity
- None, Even, Odd, Space, Mark
Pull High/Low Resistor for RS-485
- 1 kilo-ohm, 150 kilo-ohms
RS-485 Data Direction Control
- Automatic Data Direction Control (ADDC)
Terminating Resistor for RS-485
- 120 ohms

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
- 430 mA @ 12 to 48 VDC
Input voltage
- 12 to 48 VDC

Reliability
Automatic reboot trigger
- Built-in WDT Built-in WDT
Alert Tools
- Built-in buzzer and RTC (real-time clock)

Physical Characteristics
Housing
- Metal
Dimensions (with ears)
- 101 x 111 x 29 mm (3.98 x 4.37 x 1.1 in)
Dimensions (without ears)
- 77 x 111 x 29 mm (3.30 x 4.37 x 1.1 in)
Weight
- 240 g (0.53 lb)
Installation
- Desktop mounting
- DIN rail mounting (with optional kit)
- Wall mounting

Ambient conditions
Operating temperature
- 0 to 55°C (32 to 131°F)
Storage temperature (including packaging)
- - 40 to 75°C (-40 to 75°C) -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(AC), 0.5 kV(DC); Signal: 0.5 kV
- IEC 61000-4-5 Surge: Power: 1 kV(AC), 0.5 kV(DC); signal: 1 kV
- IEC 61000-4-6 CS: 3 V
- IEC 61000-4-8 PFMF
- IEC 61000-4-11
Traffic control
- NEMA TS2
Vibration
- IEC 60068-2-6
Free fall
- IEC 60068-2-34
Safety
- UL 60950-1
- UL 62368-1

Declaration
- Green Product - RoHS, CRoHS, WEEE

MTBF
Time
- 1.526,091 hours
Standards
- Telcordia (Bellcore) Standard TR/SR