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RSM-8 Serial Console Server, SSH, (8) Port DB9

RSM-8 Console Server (8) Port DB9


See Replacement Product:
DSM-8 GigE Console Server

Accessories Included:

  • Quick Start Guide
  • Network Cable, Cat 5e, 7 ft.
  • NC-9F9F-6F - Null Cable, 6 ft.
  • DPC-13-515P-8F - Power Supply Cable, C13 to NEMA 5-15P, 8 ft.

The RSM-8 Remote Site Manager provides secure, in-band and out-of-band access to RS232 console ports and maintenance ports on UNIX servers, routers and any other network element equipped with a serial console port. System administrators can access the RSM-8 via TCP/IP, using SSH or Telnet, or out-of-band via internal modem or local terminal.

The RSM includes full RADIUS, LDAP and TACACS capability, DHCP and an invalid access lockout feature. An Audit Log records all user access, login and logout times and command actions, and an Alarm Log records user-defined alarm events. Two separate command interfaces are provided: a convenient, user-friendly secure web browser interface, and a simple, command driven text interface.

WMU Firmware

Intelligent Port Selection

Each RS232 serial port of the RSM-8 can be individually accessed by number, name, or group via SSH or Telnet sessions. The RSM-8 also allows direct connections using TCP port assignments. Each serial port can be separately configured using simple menu driven commands to set the port password, data rates, flow control and other operating parameters.

The full matrix capability of the RSM-8 allows you to easily connect any two ports on the switch, even when the ports are using different communications settings. Ports can also be connected or disconnected by a third party with supervisor rights, and system managers can swap various RS232 devices between ports at a remote location.

Security and Co-Location

Secure Shell (SSHv2) encryption and address-specific IP security masks prevent unauthorized access to command and configuration functions. The RSM-8 also provides four different levels of user security; the Administrator, Supervisor, User and View Only level. The Administrator level, which is intended for use by system managers and other administrators, provides complete access to all port connection / disconnection functions, operating features and configuration menus, and also allows access to any port on the switch. The User level is ideal for co-location applications, since users are only permitted to view status and connect to the ports allowed by their user name and password.

Capture Buffer

"Buffer Mode" allows individual ports to capture and store incoming data, such as error and status messages received from attached console ports. This "snapshot" of the last data received is stored in memory, and can be viewed, saved or erased by the system operator at any time. Console messages can be stored in the RSM-8 port buffers, and sent to a remote location via SYSLOG, or an SNMP message can be generated to alert administrators when new console messages are received.

Includes Enterprise Management Software

console server with enterprise management software

All WTI console server products include WTI’s convenient Enterprise Management Software, which drastically simplifies the task of managing multiple console servers spread throughout your network infrastructure. The WMU Enterprise Management Software provides a centralized command interface that allows administrators to easily manage, label and control multiple WTI console servers in large network applications, reducing the time required to access console port command functions on connected devices.

Once installed on your PC or laptop, the Enterprise Management Software can search a user-defined IP address range on your network and discover all WTI console servers within the range. Discovered units are then added to the Enterprise Management Software’s inventory, allowing administrators to assign a descriptive tag to each console server in order to denote the location or function of the device. In addition to providing a centralized interface for remote console port access, the Enterprise Management Software can also be used to control firmware updates for WTI products and edit and manage user accounts at individual or multiple WTI console servers.

Serial Console Port Management:

  • (8) RS232 DB-9 Serial Ports
  • Break Command Blocking
  • SSH/Telnet/Raw-Socket TCP Connection
  • Reverse/Outbound SSH

Event Monitoring, Logging and Notification:

  • Over-Temperature Alarms
  • Lost Connection Alarm
  • Ping-No-Answer Alarm (Failed Ping Command)
  • Invalid Access Lockout and Alarm (IP Filtering)
  • Power Cycle Alarm
  • Buffer Threshold Alarm
  • Voltage Loss Alarm
  • No Dialtone Alarm
  • Temperature Logging, Command Logging and Event Logging Capabilities with Audit Trail
  • SYSLOG Messages
  • Time Stamp Port Buffering
  • Non-Connect Port Buffering


  • In-Band (10/100Base-T Ethernet Port)
  • Out-of-Band (56K v.92 Internal Modem with Dialback Security)
  • Local Access (DB9 RS232 SetUp Port)
  • SSHv2 Encryption
  • Embedded Validated FIPS 140-2 Cryptographic Module
  • HTTPS/SSL Secure Web
  • Port-Specific Password Protection
  • Multi-Level Subscriber Directory
  • IP Address Filtering
  • Remote Authentication: LDAP/Kerberos/RADIUS/TACACS+
  • Supports both IPv6 and IPv4

Unit Management:

  • Command Line Interface (CLI)
  • Web-Based Graphic User Interface (GUI)
  • SNMP Control, Monitoring and Configuration (Supports SNMP Versions 1, 2C and 3)
  • Full MIB Support
  • Multiple Concurrent SSH Sessions
  • NTP for True Server Sync
  • Includes Enterprise Management Software


  • Co-Location Features
  • Any-to-Any Port Switching
  • Easy-to-Use Menu/Commands
  • AC Powered


  • Local or Remote Console Port Switching
  • UNIX Serial Console Management
  • TCP/IP, Dial-Up, SSH or Telnet Access to Consoles at Remote Locations
  • Share Multiple Console Ports Using a Single VT 100 Terminal or PC
  • In-Band/Out-of-Band Network Management


Interface Descriptions:
Ethernet Port: 10/100Base-T, RJ45
RS-232 Ports: (8) DB9M (DTE)
Internal Modem: 57.6K, V.92
Operating Features:
Memory: 256K per RS232 Port
Voltage: 100 - 240 VAC, 50/60 Hz, 10 Watts Max.
Power Inlet: (1) IEC-60320-C14 Inlet
Size: 1.75"H x 19"W x 6.5"D (1U)
(4.4 cm H x 48.3 cm W x 16.5 cm D)
Weight: 12 Pounds (5.4 Kg) Shipping Weight
Operating Temperature: 32° to 122° F (0° C to 50° C)
Humidity: 10% to 90% RH
Mounting: 19" Rack Brackets Included
Agency Approvals:
UL, cUL, CE (AC Units,) FCC Class A

Serial Cables and Adapters

Target Device End Adapter Cable Adapter WTI Device End
RJ45 Serial Console Ports:
Cisco Routers,
Juniper Routers and
Other Network Devices with
RJ45 Serial Console Port
(None Required) RJ45 Straight Cable:
RJX-7 (7 Feet)
RJX-15 (15 Feet)
RJX-25 (25 Feet)
RJX-50 (50 Feet)
Snap Adapter
WTI RSM Series
DB9, DTE Serial
Console Port
DB9M Serial Console Ports:
Linux PC or Linux Laptop
WTI RSM Series Units
WTI MPC Series Units and
Other Devices with DB9, DTE
Serial Console Port
Snap Adapter
RJ45 Straight Cable:
RJX-7 (7 Feet)
RJX-15 (15 Feet)
RJX-25 (25 Feet)
RJX-50 (50 Feet)
Snap Adapter
(None Required) DB9 Null Cable (None Required)
DB25F Serial Console Ports:
Terminal/DTE and Other
Devices with DB25F
Serial Console Port (DTE)
Snap Adapter
RJ45 Straight Cable:
RJX-7 (7 Feet)
RJX-15 (15 Feet)
RJX-25 (25 Feet)
RJX-50 (50 Feet)
Snap Adapter
(None Required) DB25M to DB9F Null Cable (None Required)

DB9 Serial Port Pinout

DB9 Serial Port Pinout

When new, improved versions of product firmware become available, the "Upgrade Firmware" function can be used to update the unit. To receive the latest available firmware update from WTI Technical Support, please click on the link below and complete the form.

Request Firmware

To speak with a qualified sales engineer about your firmware request, please call: 1.800.854.7226

Latest Firmware Version:

Any questions? Submit your request regarding this product.