BLACK BOX 

BLACK BOX SM965A 4U DB25 A/B SWITCH CARD, LATCHING, GSA, TAA

Mfg Part Number:  SM965A  
Image may not reflect the actual item.
Price: $318.38
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Nov 08, 2026
No Sales Tax except these states
, PO and Wire.

The DB25 A/B switch latching card allows you to switch between two DB25 connections. If power is lost the connection will retain its connected state. Controller Cards take up only one slot, and external power connects to the controller card, one slot is reserved for future use, leaving you with 16 slots for A/B Switch Cards.

All switch cards take up one slot except for the power A/B cards which take up two slots. Manage access to networks, implement backup systems for network and computer connections, or share peripherals and other equipment. Local features include LED status and manual switching.

Remote control (dry contact closure, RS232, and Ethernet) provides unmatched management flexibility. Gang Switch systems are used around the world to add secure access control and reliable backup for critical systems from space launch centers to stock exchange networks.

Ordering instructions:

First, order the chassis

  • Gang Switch, 4U, 18-Card (SM960A)

Next order at least one power supply (order two for redundancy)

  • External Power Supply 100- 240 VAC (SM961-PS)
  • Internal Power Supply -48 VDC (SM760-PS1)
  • Internal Power Supply Dual -48VDC (SM760-PS2)

Then select a Controller Card

  • Ethernet (SNMP) (SM962A)
  • Logic Only (SM964A)

Next, choose your A/B Switch Cards

  • Serial DBxx: DB25 A/B Latching (SM965A)
  • DB9 A/B Latching (SM966A)
  • DB15 A/B Latching (SM967A)
  • Power: 240 VAC 1 in 2 out (SM971)
  • 120 VAC 2 in 1 out (SM973)
  • Video: 75-ohm F-Connector (SM976A)
  • Multimode: SC Latching (SM977A-SC)
  • ST Latching (SM977A-ST)
  • RJ45 Copper: CAT5e Latching (SM978A)
  • CAT6 Latching (SM979A)

This product works with Power Supply (SM961-PS) A/B Switch Cards (SM965A, etc.)

Main Specification
General Information
Manufacturer Black Box Corporation
Manufacturer Part Number SM965A
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Name Switching Module
Product Type Switching Module
Technical Information
Application/Usage Switching Network
Interfaces/Ports
Total Number of Ports 3
Connector Type DB-25
Interfaces/Ports Details 3 x DB-25
Miscellaneous
Compatibility Black Box SM960A Pro Switching Gang Switch Chassis
Country of Origin United States
TAA Compliant Yes
Warranty
Limited Warranty 1 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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