Black Box SM265A Pro Switching Gang Switch - 2U RS232/DB25 A/B Card Latching GSA TAA

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Black Box SM265A Pro Switching Gang Switch - 2U RS232/DB25 A/B Card Latching GSA TAA
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Only 2 left in stock - order soon! Inventory as of date 08/03/2026.
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Overview


Pro Switching Gang Switch - 2U, RS232/DB25, A/B Card, Latching

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.

Features

  • Occupies three slots.
  • LED's monitor TxD, RxD, RTS, DCD on A and B ports
  • 8-position DIP switch, used to set the card's address
  • Latching switch card will maintain current position if power is lost
  • Supports pass through of all RS232 signals

Product works with:

  • Pro Switching System, 2U (SM260A)
  • Power Supply (SM961A-PS)
  • Power Supply Card (SM261A-CARD)
  • Redundant Power Supply Cards (SM261A-VAC, SM261A-VDC)
  • Blank Panel (SM279A-BLNK)
⚠️ Attention CA Residents: Prop 65 Warning

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