The SM-250 Link Protector provides a fully automatic link
backup capability to "mission-critical" 10BaseT Ethernet links. Protects
vital connections to servers, routers, and other key Ethernet devices that
require fail-safe link operation. The SM-250 operates by non-intrusively
monitoring a "primary" link and, in the event of a failure, automatically
switching to the backup link. The Link Protector does not require any
additional network cards in a server and does not require router-level
switch-overs if a failure occurs. The backup link can be connected to either
another port on a hub or an entirely different hub altogether for greater
protection.
Key Benefits
Cost-Effectively Handles 10BaseT Link Technology
Non-Intrusive Monitoring of Primary and Backup Network Connections
Automatic Switching in the Event of Link Failure
Maintains Protected-to-Primary Port Connection During Power Failure
PRODUCT DESCRIPTION
The SM-250 Link Protector provides a fully automatic link backup
capability to "mission-critical" 10BaseT Ethernet links. Protects vital
connections to servers, routers, and other key Ethernet devices that require
fail-safe link operation. The SM-250 operates by non-intrusively monitoring
a "primary" link and, in the event of a failure, automatically switching to
the backup link. The Link Protector does not require any additional network
cards in a server and does not require router-level switch-overs if a
failure occurs. The backup link can be connected to either another port on a
hub or an entirely different hub altogether for greater protection.
FEATURES
Automatic Switching to Backup Link Occurs Within 500 Milliseconds to
Avoid Protocol-Timeouts
Automatic Switch-Back to Primary Link on Restoration of Service
Completely Transparent in Normal Operation - Does Not Affect IEEE
10BaseT Repeater Budget
Audible Alarm for Link Failure Notification
LED Indicators of Operational Circuit (Primary or Backup)
Default Connection to Primary Link in Case of Power Interruption
APPLICATIONS
Provide Backup for Critical 10BaseT Links to Servers, Routers, and
other Vital Equipment
Protect Against Failures of Primary Link Due to Cable Cuts,
Disconnected Cables, and Hub Failures from Malfunctioning Ports, Plug-in
Cards, or Power Supplies
SPECIFICATIONS
Standards: IEEE 802.3 10BaseT Ethernet
Connectors: Three RJ45 Twisted Pair Jacks: One Primary, One Backup,
One Direct Station Connection (Server Port); One 9V DC Power
