BlackBox, SM265A, 2 Unit A/B Switch Card with DB25/RS-232 Connectors for Pro Switching System
Pro Switching System, 2U, A/B Switch Card, DB25/RS-232. Layer 1 switching for the Pro Switching System, 2U.
Quick Facts
- Use with the Pro Switching System, 2U (SM260A).
- Occupies three slots.
- Many types of switch cards are available. See Ordering instructions (below).
Further Details
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.