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The 2-port NPort® 6250 device servers use the SSL and SSH protocols
to transmit encrypted serial data over Ethernet. Models are available
for connecting to a 10/100BaseTX copper Ethernet or 100BaseTX fiber
network. Both single-mode and multi-mode fiber are supported.
Zero Data Loss if Ethernet Connection Fails
The NPort® 6250 device servers help guarantee reliability by
providing users with secure serial-to-Ethernet data transmission and a
customer-oriented hardware design. If the Ethernet connection fails,
the NPort® 6250 will queue all serial data in its internal 64 KB port
buffer. When the Ethernet connection is re-established, the NPort®6250
will immediately release all data in the buffer in the order that it
was received. Users can increase the port buffer size by installing an
SD card.
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Ethernet Interface
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Number of Ports
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1
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Speed
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10/100 Mbps, auto MDI/MDIX
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Connector
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8-pin RJ45
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Magnetic Isolation
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1.5 KV built-in
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• Optical Fiber Interface (NPort 6250-S-SC/6250-M-SC)
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• Serial Interface
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Number of Ports
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2
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Serial Standards
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RS-232/422/485
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Connector
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DB9 male
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RS-485 Data Direction Control
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ADDC® (Automatic Data Direction Control)
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Serial Line Protection
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15 KV ESD protection for all signals
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Console Port
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Serial port 1 doubles as RS-232 console port
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• Serial Communication Parameters
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Data Bits
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5, 6, 7, 8
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Stop Bits
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1, 1.5, 2
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Parity
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None, Even, Odd, Space, Mark
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Flow Control
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RTS/CTS, DTR/DSR, XON/XOFF
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Baudrate
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50 bps to 921.6 Kbps (supports non-standard baudrates)
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Pull High/Low Resistor for RS-485
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1 KΩ, 150 KΩ
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• Serial Signals
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RS-232
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TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
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RS-422
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Tx+, Tx-, Rx+, Rx-, GND
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RS-485-4w
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Tx+, Tx-, Rx+, Rx-, GND
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RS-485-2w
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Data+, Data-, GND
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• Memory Expansion Slot
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Slot Type
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SD socket (supports up to 2 GB)
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• Software
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Network Protocols
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ICMP, IP, TCP, UDP, DHCP, BOOTP, Telnet, DNS, SNMP V1/V2c/V3, HTTP, SMTP, ARP, PPPoE
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Security Protocols
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DES, 3DES, AES, SSH, SSL
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Configuration Options
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Web Console, Serial Console, Telnet Console, Windows Search Utility
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Windows Real COM Drivers
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Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7 x86/x64, Embedded CE 5.0/6.0, XP Embedded
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Fixed TTY Drivers
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SCO Unix, SCO OpenServer, UnixWare 7, UnixWare 2.1, SVR 4.2, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x
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Linux Real TTY Drivers
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Linux kernel 2.4.x, 2.6.x
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Management
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SNMP MIB-II
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IP Routing
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Static, RIP-I, RIP-II
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• Operation Modes
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Standard
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Real
COM, TCP Server, TCP Client, UDP, Pair Connection, RFC2217, Terminal,
Reverse Telnet, Ethernet Modem, Printer, PPP, Disabled
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Secure
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Secure Real COM, Secure TCP Server, Secure TCP Client, Secure Pair Connection, SSH, Reverse SSH
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• Applications
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Terminal Sessions
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8 sessions per port
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• Physical Characteristics
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Housing
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Metal
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Weight
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730 g
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Dimensions
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Without ears: 77 x 111 x 28 mm (3.30 x 4.37 x 1.1 in)
With ears: 89 x 111 x 28 mm (3.50 x 4.37 x 1.1 in)
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• Environmental Limits
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Operating Temperature
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0 to 55°C (32 to 131°F)
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Storage Temperature
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-40 to 75°C (-40 to 167°F)
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Ambient Relative Humidity
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5 to 95% (non-condensing)
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• Power Requirements
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Input Voltage
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12 to 48 VDC
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Power Consumption
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NPort 6250: 333 mA @ 12 V, 173 mA @ 24 V
NPort 6250-M-SC: 428 mA @ 12 V, 219 mA @ 24 V
NPort 6250-S-SC: 376 mA @ 12 V, 193 mA @ 24 V
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Alarm Contact
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Relay output with current carrying capacity of 1 A @ 24 VDC
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Power Line Protection
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1 KV burst (EN61000-4-4: EFT/B), 0.5 KV surge (EN61000-4-5)
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• Standards and Certifications
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Safety
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UL 60950-1, EN 60950-1
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EMC
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CE, FCC
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EMI
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EN 55022 Class A, FCC Part 15 Subpart B Class A
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EMS
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EN 55024,
EN 61000-4-2 (ESD) Level 2/3,
EN 61000-4-3 (RS) Level 2,
EN 61000-4-4 (EFT) Level 2,
EN 61000-4-5 (Surge) Level 2,
EN 61000-4-6 (CS) Level 2,
EN 61000-4-8 Level 1,
EN 61000-4-11
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Freefall
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IEC-68-2-6, IEC-68-2-34, IEC-68-2-32
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Vibration
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IEC-68-2-6, IEC-68-2-34
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Green Product
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RoHS, CRoHS, WEEE
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• Reliability
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Alert Tools
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Built-in buzzer and RTC (real-time clock)
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Automatic Reboot Trigger
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Built-in WDT (watchdog timer)
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MTBF (mean time between failures)
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NPort 6250: 226,128 hrs
NPort 6250-M-SC: 225,762 hrs
NPort 6250-S-SC: 225,762 hrs
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• Warranty
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Warranty Period
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5 years
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Dimensions
Pin Assignment
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Features
- Simple solution for connecting serial devices to
a network
- Secure operation modes for Real COM, TCP Server,
TCP Client, Pair Connection, Terminal, and Reverse Terminal
- Non-standard baudrates supported with high
precision
- Choice of network medium: 10/100BaseTX or
100BaseFX
- Enhanced remote configuration with HTTPS and
SSH
- Port buffers for storing serial data when the
Ethernet is off-line
- Supports IPv6
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