Switch between two RS232/DB25 connection with signal monitoring for TXD, RXD, RTS and DCD
Pick a card, any card.
A/B Switch Cards are available for RS-232, video, fiber optic, and CAT5e/CAT6 connections. The card featured here is the DB25/RS-232. Use the system for both new and legacy applications. You can add cards for fast CAT6 10-GbE networking while keeping connections for older RS-232 and 75-ohm video connections.
Secure and fallback switching.
For fail-safe operation, all the cards (except those noted) use proprietary latching or micro-mirror relay switching technology—which means data can continue to pass through even if the power has been cut off. Because the cards perform Layer 1 switching, the system operates independently of data rates, protocols, formats, or signal levels.
The non-latching fiber cards fall back to a Port C (chassis) to Port A connection when the power fails. When power is restored, the non-latching switch card reconnects Port C to the originally selected port (A or B). These types of cards are typical when you want a fallback or failover connection during power outages.
Each chassis also has a keyed switch so you can enable/disable manual switching from the front-panel toggle switches.
First, order the chassis...
Pro Switching System, 2U, 18-Card (SM260A)
Next order at least one power supply
Power Supply Cards:
Redundant Power Supply Cards (NOTE: cards requires two chassis slots.):
100–240-VAC Input (SM261A-VAC)
-48-VDC Input (SM261A-VDC)
AC External Adapter Card (SM261A-CARD) ( NOTE: card requires one chassis slot.)
And at least one power supply (order two for redundant power)...
Power Supply, 120–240 VAC, External (SM961A-PS)
...then select a Controller Card...
RS-232/Ethernet (SNMP) (SM262A)
RS-232 Only (SM263A)
SNMP Expansion (SM264A)
...next choose your A/B Switch Cards...
Video F-Connector, Latching (SM276A-LCH)
Video F-Connector, Non-Latching (SM267A)
Multimode Fiber Optic:
ST®, Latching (SM277A-MM-ST-LCH)
SC, Latching (SM277A-MM-SC-LCH)
ST, Non-Latching (SM277A-ST)
SC, Non-Latching (SM277A-SC)
Single-Mode Fiber Optic:
ST, Latching (SM278A-SS-ST-LCH)
SC, Latching (SM278A-SS-SC-LCH)
ST, Non-Latching (SM278A-ST)
SC, Non-Latching (SM278A-SC)
RJ-45 CAT5 (SM268A)
RJ-45 CAT6 (SM269A)
For empty slots, order...
Blank Panel, Front or Rear, 2U (SM279A-BLNK)
Questions? Contact our FREE Tech Support.
* Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 1-800-667-6625.
Double Diamond™ Warranty (Standard)
Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.
The Double Diamond Warranty is our no-questions-asked warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.
During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!
Plus, get an Extended Double Diamond Warranty.
You can also extend your warranty or protect a previously purchased Black Box® brand product* for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!
Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 787-767-3500.
** Certain products may not be eligible.
What’s more, we also have a 45-day, no-questions-asked return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.