SM-2501 Link Protector

 






 
 

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The SM-2501 Ethernet Link Protector provides a programmable 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-2501 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. The unit also functions in a back-to-back configuration for redundant wiring applications.

Key Benefits

bulletSupports 10/100 Mbps Autonegotiation
bulletAudible Alarm and Contact Closure Output for Link Failure Notification
bulletProgrammable Switchover Delays
bulletManual Override for Forced Switching
bulletOutbound Generation of Link Integrity Signals to avoid False Alarms on Inactive Links
bulletJumperless System Configuration Stored in Non-Volatile Memory

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PRODUCT DESCRIPTION

The SM-2501 Ethernet Link Protector provides a programmable 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-2501 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. The unit also functions in a back-to-back configuration for redundant wiring applications.

FEATURES

bulletAutomatic Switching to Backup Link Occurs Within 600 to 1100 Milliseconds to Avoid Protocol-Timeouts
bulletAutomatic Switch-Back to Primary Link on Restoration of Service
bulletSupports 10/100 Mbps Autonegotiation
bulletCompletely Transparent in Normal Operation - Does Not Affect IEEE Repeater Budget Calculations
bulletAudible Alarm and Contact Closure Output for Link Failure Notification
bulletDefault Connection to Primary Link in Case of Power Interruption
bulletOutbound Generation of Link Integrity Signals to avoid False Alarms on Inactive Links
bulletProgrammable Switchover Delays
bulletManual Override for Forced Switching
bulletMultiple LED Indicators for Status Display
bulletJumperless System Configuration Stored in Non-Volatile Memory
bulletInteroperates with SM-250, SM-2500, SM-2503, and SM-2512 Series Link Protectors

APPLICATIONS

bulletProvide Backup for Critical 100BaseTX and/or 10BaseT Links to Servers, Routers, and other Vital Equipment
bulletProtect Against Failures of Primary Link Due to Cable Cuts, Disconnected Cables, and Hub Failures from Malfunctioning Ports, Plug-in Cards, or Power Supplies
bulletAdd Redundant Network Wiring in conjunction with other Shore Microsystems Link Protector products.

SPECIFICATIONS

bulletStandards: IEEE 802.3u 100BaseTX and 802.3 10BaseT Ethernet
bulletConnectors: Three RJ45 Twisted Pair Jacks: One Primary, One Backup, One Direct Station Connection (Server Port); One 3.5mm Alarm Contact Jack; One 12V DC Power
bulletSize: 4.3"L x 2.8"W x 1.0"H
bulletApprovals: UL, FCC Part 15 Class A Compliant

 

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Last modified: 09/05/12