The SM-2500 Link Protector provides a fully automatic link
backup capability to "mission-critical" 100BaseTX and 10BaseT Ethernet
links. Protects vital connections to servers, routers, and other key
Ethernet devices that require fail-safe link operation. The SM-2500 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
Handles Both 100BaseTX and 10BaseT Link Technologies
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-2500 Link Protector provides a fully automatic link backup
capability to "mission-critical" 100BaseTX and 10BaseT Ethernet links.
Protects vital connections to servers, routers, and other key Ethernet
devices that require fail-safe link operation. The SM-2500 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 900 Milliseconds to
Avoid Protocol-Timeouts
Automatic Switch-Back to Primary Link on Restoration of Service
Supports Both 100BaseTX and 10BaseT Connections Simultaneously
Completely Transparent in Normal Operation - Does Not Affect IEEE
Repeater Budget Calculations
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 100BaseTX and/or 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 802.3u 100BaseTX and 802.3 10BaseT Ethernet
Connectors: Three RJ45 Twisted Pair Jacks: One Primary, One Backup,
One Direct Station Connection (Server Port); One 9V DC Power
