The SM-2501F Fiber Link Protector provides a programmable
automatic link backup capability to "mission-critical" 100BaseFX Fiber and
100BaseTX Ethernet links. Protects vital connections to servers, routers,
and other key devices that require fail-safe operation. The SM-2501F
operates by 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/switch or an entirely different
hub/switch altogether for greater protection. The unit contains a dual
Protected Port (one SC Fiber and one RJ45 Copper) for a redundant station
port configuration. The unit also functions in a back-to-back configuration
for redundant cable applications.
Key Benefits
Automatic Switching Capability Between Primary and Backup Links
Non-Intrusive Monitoring of Primary and Backup Network Connections
Automatic Switching in the Event of Link Failure
Additional Copper 100BaseTX Port for Server Redundancy
Redundant 48VDC and/or 100/220VAC Power
PRODUCT DESCRIPTION
The SM-2501F Fiber Link Protector provides a programmable automatic link
backup capability to "mission-critical" 100BaseFX Fiber and 100BaseTX
Ethernet links. Protects vital connections to servers, routers, and other
key devices that require fail-safe operation. The SM-2501F operates by
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/switch or an entirely different hub/switch altogether
for greater protection. The unit contains a dual Protected Port (one SC
Fiber and one RJ45 Copper) for a redundant station port configuration. The
unit also functions in a back-to-back configuration for redundant cable
applications.
FEATURES
Automatic Switching to Backup Link Can Be
Programmed To Occur Within 100 to 1100 Milliseconds to Avoid
Protocol-Timeouts
Automatic Switch-Back to Primary Link on
Restoration of Service
Automatic Switching upon Detection of
Far-End Faults
Dual Switchable Protected Station Port for
either SC Fiber or RJ45 Ethernet Connectivity(Optional)
Redundant Protected Port Configuration for
Dual NIC Station Ports(Optional)
Audible Alarm and Contact Closure Output
for Link Failure Notification
Outbound Generation of Link Integrity
Signals to avoid False Alarms on Inactive Links
Manual Override for Forced Switching
Multiple LED Indicators for Status Display
Jumperless System Configuration Stored in
Non-Volatile Memory
Dual Power Supplies for High Reliability
Dual Separate 120V AC Power Inputs(Optional)
APPLICATIONS
Provide Backup for Critical 100BaseFX and/or 100BaseTX Links to
Servers, Routers, and other Vital Equipment (figure 1, 2 ,and 3)
Protect Against Failures of Primary Link Due to Cable Cuts,
Disconnected Cables, and Hub/Switch Failures from Malfunctioning Ports,
Plug-in Cards, or Power Supplies
Provide Backup for Dual NIC Station Port (Servers) Configuration
(figure 2)
Add Redundant Network Wiring in conjunction with other Shore
Microsystems Link Protector products (figure 3)
Provides Real Time Automatic Switching for Network Uptime
Allows for Prime Time Network Maintenance
SPECIFICATIONS
Standards: IEEE 802.3u 100BaseTX and 100BaseFX
Connectors: Three SC Fiber Jacks: One Primary, One Backup, One Direct
Station Connection (Server Port); One RJ45Twisted Pair Jack as a Direct
Station Connection (Server Port); One 3.5mm Alarm Contact Jack; One DB9F
DCE RS232 Serial Port.
Power Requirements: 2 110/220V 50/60Hz, 2A or 2 48V DC or one of each
