SSH Secure Console Serial Switch, How to

SSH Serial Port Switch RS232 Remote
Presence Management with Secure Shell

SSH Console Serial Switch with Environmental Monitoring

Securely control up to 32 RS232 devices via the Internet

Also known as: Remote Network Management Console Switch, console server, console port switch, serial port switch box with Secure Shell, SSH console switch.

SERIMUX-S-16DP (Front & Back)

Product Highlights

  • Linux Inside
  • IPV6 Compatible
  • Designed and Manufactured in the U.S.A.

Additional Images

  • SERIMUX Secure SSH Console Serial Switch
  • SERIMUX Secure SSH Console Serial Switch
  • DB9F-RJ45F - Adapt DB-9M serial ports to the SERIMUX
  • DB25F-RJ45F - Adapt DB-25M serial ports to the SERIMUX
  • DB25M-RJ45F-T - Adapt DB-25F serial ports to the SERIMUX
  • DB25M-RJ45F-C - Adapt a modem to the SERIMUX
  • RJ45MF-RS232-CO - Adapter to connect SUN/Cisco RJ45 serial ports to the SERIMUX

The SERIMUX® Secure SSH Console Serial Switch delivers secure management of up to 32 serial devices via the internet, TCP/IP network, or dial-up modem connections. It combines the advanced security of Secure Shell v2 with unlimited access to remote network management.

The SERIMUX® Secure SSH Console Serial Switch delivers secure management of up to 32 serial devices via the internet, TCP/IP network, or dial-up modem connections. It combines the advanced security of Secure Shell v2 with unlimited access to remote network management.

  • Operates on a hardened Linux system.
  • Connect up to 32 devices with different baud rates, parity, and character length. Each switch also has one RJ45 connector for a local terminal.
  • Eliminates the need to connect each device to an ASCII terminal or PC.
  • Provides out-of-band access to network devices (servers, routers, network switches, and any other network devices allowing console operation using RS232).
  • Connects to console serial ports using standard CAT5/5e/6 cables and cable adapters.
    • Maximum cable length is 1000 feet (305 meters).
  • Dual Ethernet and optional dual power provide redundant connectivity and power.
  • USB port provides expanded logging storage, configuration export and additional functionality.
  • Dual power option creates a redundant power system protecting the console switch from any power failure issues.
  • High quality, rugged steel construction with durable powder coat finish.
  • Gain access to servers without interrupting service to end-users; maintain optimal up-time.
  • Monitor environmental conditions.
    • Supports two sensors, including: temperature, humidity, and water detection.
    • When a sensor goes out of range of a configurable threshold, the system will notify you via email, LEDs, web page, and network management (SNMP).
  • Power cycle without halting SUN host computer.
    • No inadvertent "break" signals are generated to cause unintentional rebooting of SUN computers.
  • Powerful diagnostic and event management features (data capture, notification and scripting) assist in the quick location of the source of equipment failures and minimize downtime.
  • Enhanced security features to protect the system - Secure Shell (SSH v2), individual port authentication, HTTPS.
  • Switching is simplified with programmable device names and menu-driven device selection.
    • All configuration parameters are stored in non-volatile memory.
    • Configuration parameters can be imported from USB Flash drive.
  • Firmware upgradeable "in-field" through console port, Ethernet, or an attached USB Flash drive.
  • 1RU case is standard. Includes rack mounting kit.
Compatibility
  • Supports most devices with an RS232 serial port
  • Supports VT terminals
Serial Interface
  • 4/8/16/24/32 RJ45 EIA-232 serial port connectors
  • One RJ45 EIA-232 console port connector
  • Each individual serial port is fully configurable-
    • All industry-standard baud rates ranging from 50 up to 115.2kbps
    • RTS/CTS, Xon/Xoff or both handshaking schemes
    • Variable character widths- 5, 6, 7, or 8 bits
    • Stop bits - 1 or 2, as well as Parity- Odd, Even and None
  • Flow Control:
    • Hardware RTS/CTS
    • Software XON/XOFF
  • Signals: RS232 CTS, DSR, RXD, GND, DCD, TXD, DTR, RTS
  • Modem control: DTR/DSR and RTS/CTS
  • Data transfer rate: up to 115.2K baud between two ports
    • Two ports can be at different baud rates
Network Interface
  • Two 10/100 Base-T Ethernet ports with RJ45 Ethernet connector
  • Supports both static and dynamic IP addresses
Power
  • Input Voltage: AC 100 to 240 V, 50 to 60 Hz (Country-specific power supply cable included.)
  • Optional 48 V DC power
  • Optional dual AC power or dual DC power available on all models

Power Consumption
Part # Power (W)
SERIMUX-S-4 10
SERIMUX-S-8 10
SERIMUX-S-16 15
SERIMUX-S-24 15
SERIMUX-S-32 15
Adapters
  • Four cable adapters are included with the SERIMUX
    • Male DB-25F to female RJ45
    • Female DB-9F to female RJ45
    • Female DB-25M to female RJ45
    • Male DB-25M to female RJ45
  • Additional adapters available
  • Adapter pinout diagrams
Protocols
  • SSH V2, Telnet
  • IPV4, IPV6
  • TCP/IP, TFTP, DHCP, ICMP, UDP, ARP
  • HTTP, HTTPS, SMTP, SNMP V1/V2c, Syslog, SNTP
  • IPMI v2, RMCP
  • Alerts are sent using email, and/or SNMP traps when any monitored environmental condition exceeds a user-specified range.
    • Alerts are posted in message log, which is accessible through Web user interface.
    • Sends notifications of alerts to a maximum of 17 email addresses, and/or SNMP addresses. The users can configure the schedule when they will be alerted.
RJ45 Sensor Ports
  • Two RJ45 modular jacks for connecting NTI temperature, humidity, temperature/humidity, and liquid detection sensors.
  • Available sensors
Internal Sensors
  • Temperature:
    • Applications from 32 to 104°F (0 to 40°C).
    • Accurate to within ±1.35°F (±0.75°C).
  • Fan:
    • Ability to monitor internal fan speed (24- and 32-port models only)
Memory
  • 32 MB Flash memory
  • Female USB 2.0 Type A connector for storage devices
Logging & Buffering
  • System log, event-log of user activity and on-line data buffering
  • Data-logging with date and time-stamp, locally
  • The log can be downloaded as a tab-delimited plain text file and/or sent to an external syslog server.
Dimensions:
  • 4-, 8- and 16-port switches WxDxH (in):
    • 16.20x9.00x1.75 (without supplied rack ears kit)
    • 19x9.00x1.75(with supplied rack ears kit)
  • 24- and 32-port switches WxDxH (in):
    • 17.40x10.00x1.75 (without supplied rack ears kit)
    • 19x10.00x1.75 (with supplied rack ears kit)
Regulatory Approvals
  • CE, RoHS
Environmental
  • Operating temperature: 32 to 104°F (0 to 40°C)
  • Storage temperature: -20 to 140°F (-30 to 60°C)
  • Operating and Storage Relative Humidity: 17 to 90% non-condensing RH

MTBF
NTI Part # Hours NTI Part # Hours
SERIMUX-S-4 46,899 SERIMUX-S-16-48V 33,524
SERIMUX-S-4DP 111,676 SERIMUX-S-16-48VDP 100,385
SERIMUX-S-4-48V 34,695 SERIMUX-S-24 42,980
SERIMUX-S-4-48VDP 111,677 SERIMUX-S-24DP 91,754
SERIMUX-S-8 43,306 SERIMUX-S-24-48V 32,503
SERIMUX-S-8DP 108,371 SERIMUX-S-24-48VDP 91,755
SERIMUX-S-8-48V 34,370 SERIMUX-S-32 42,004
SERIMUX-S-8-48VDP 108,372 SERIMUX-S-32DP 87,420
SERIMUX-S-16 44,783 SERIMUX-S-32-48V 31,942
SERIMUX-S-16DP 100,384 SERIMUX-S-32-48VDP 87,421
Warranty
  • Two years
  • HTTP/HTTPS Web Interface (view product demo) , Telnet/SSH, System console.
  • Supports up to 32 users
  • Two user levers: User and Administrator
LED Indicators
  • Full featured status display via LED indicators:
    • CPU – Power
    • Console – device connected
    • Ethernet – connection/speed/activity
    • Each Serial Port – device connected
    • "INT ALERT" – internal sensor goes out of range of a configurable threshold.
    • "EXT ALERT" – external sensor goes out of range of a configurable threshold.
Security
  • Local DB authentication
  • TLS/SSL secure communications
  • SSH v1, SSH v2, SSL
  • AES, 3DES/DES, Blowfish, Twofish, RSA, EDH-RSA, Arcfour Encryptions

Application Drawings

  • SSH Console Serial Switch with Environmental Monitoring
    Serimux Secure SSH Console Switch Application Drawing
    How to securely control up to 32 RS232 devices via the Internet

Application Notes

  • Connecting RJ45 Port on a NTI Console Serial Switch to RJ45 Port on Digi PortServer II
    Male RJ-45 8-pin
    Signal Flow Diagram
    From Digi PortServer RJ-45 Signal Direction Signal To NTI Console Switch RJ-45
    1 DSR DTR 7
    2 RTS CTS 1
    3 Shield Do Not Connect
    4 TxD RxD 3
    5 RxD TxD 6
    6 GND GxD 6
    7 CTS RTS 8
    8 DTR DSR 2
    Do Not Connect DCD 5
    Connect a RJ45 port on a NTI Console Serial Switch (SERIMUX-CS-x or SERIMUX-S-x) to a RJ45 port on the Digi PortServer II to replace terminals. Using CAT5/5e/6 cable, arrange the wires in a RJ45 plug on each end to match the pinout for the corresponding port it will be connected to.

Product Overview

  • SERIMUX® SSH Secure Console Serial Switch
    Product Overview

    The SERIMUX® Secure SSH Console Serial Switch provides secure out-of-band access for up to 32 serial network devices via the internet, TCP/IP network, or dial-up modem connections. The console switch operates on a hardened Linux system with enhanced security features including Secure Shell (SSH v2), individual port authentication, and HTTPS.

    Increase productivity with powerful diagnostic and event management features that allow the system administrator to gain access to servers without interrupting service to end-users. The console switch helps avoid costly downtime by monitoring critical environmental conditions such as temperature, humidity, and liquid presence. When conditions exceed a configurable threshold, the system will notify you via email, LEDs, web page, and network management (SNMP).

  • "The SERIMUX-S-4/16/32 Secure Console Switches are used for remote console access to our network switching. Up until now, we have been required to go on-site and plug directly into the console port of the network switches in order to make configuration changes. This product allows us to remotely configure the switching as if we were sitting right there plugged directly in."

    Greg Petty
    ASM Research, Inc
    Fairfax, VA
  • "We are using the SERIMUX® Secure Console Switch in our remote locations in order to support our facilities when there is an outage. We connect a modem into one port, and our network hardware's console port into the rest of the ports. This gives us the ability to see what is going on with our routers as well as the core switches. We are very happy with the performance of the devices. So happy, in fact, that we have committed in purchasing one for every one of our facilities. I do recommend that you purchase more ports than what you need. You never know what the future brings. We have standardized on the 16 port for our smaller facilities and the 24 port for our larger ones."

    Henri Yochum
    Steris Corp
    Mentor, OH
  • "The SERIMUX-S-16DP is working great. The unit is deployed in one of our co-location facilities, and doing exactly what we need it to. We have been very happy with the product."

    Andrew Plas
    Netgain
    St. Cloud, MN

Secure SSH Console Switches with Environment Monitoring *

NTI Part # # of Ports Power Power Cord Length Price Quote Buy
SERIMUX-S-4 4 AC $970.00
SERIMUX-S-4DP 4 dual AC $1,095.00
SERIMUX-S-4-48V 4 48VDC $985.00
SERIMUX-S-4-48VDP 4 dual 48VDC $1,125.00
SERIMUX-S-8 8 AC $1,065.00
SERIMUX-S-8DP 8 dual AC $1,195.00
SERIMUX-S-8-48V 8 48VDC $1,080.00
SERIMUX-S-8-48VDP 8 dual 48VDC $1,225.00
SERIMUX-S-16 16 AC $1,260.00
SERIMUX-S-16DP 16 dual AC $1,390.00
SERIMUX-S-16-48V 16 48VDC $1,275.00
SERIMUX-S-16-48VDP 16 dual 48VDC $1,420.00
SERIMUX-S-24 24 AC $1,510.00
SERIMUX-S-24DP 24 dual AC $1,640.00
SERIMUX-S-24-48V 24 48VDC $1,530.00
SERIMUX-S-24-48VDP 24 dual 48VDC $1,670.00
SERIMUX-S-32 32 AC $1,680.00
SERIMUX-S-32DP 32 dual AC $1,805.00
SERIMUX-S-32-48V 32 48VDC $1,695.00
SERIMUX-S-32-48VDP 32 dual 48VDC $1,840.00

Adapters

NTI Part # Description Price Quote Buy
DB25M-RJ45F-C Adapt a modem to the SERIMUX $5.00
DB9F-RJ45F Adapt DB-9M serial ports to the SERIMUX $5.00
DB25M-RJ45F-T Adapt DB-25F serial ports to the SERIMUX $5.00
DB25F-RJ45F Adapt DB-25M serial ports to the SERIMUX $5.00
RJ45MF-RS232-CO Adapter to connect SUN/Cisco RJ45 serial ports to the SERIMUX $6.00

Sensors

NTI Part # Description Price Quote Buy
ENVIROMUX-STS Temperature Sensor $50.00
ENVIROMUX-SHS Humidity Sensor $70.00
ENVIROMUX-STHS Temperature/Humidity Sensor $85.00
ENVIROMUX-STHS-99 Temperature/Wide Range Humidity Sensor $145.00
ENVIROMUX-LDSx-y
Liquid Detection System - Rope-Style

Select Length of Water Sensor Cable to Order (x):
(Cost is $9 Per Foot):
  • $9.00 Per Foot
  • No Additional Cost
$60.00