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Pro Switching Gang Switch - 4U, External Power Supply

External AC power supply for the Gang Switch 4U provides mians power to the Gang Switch chassis.

Item #:  Gang Switch - 4U, External Power Supply


Call 1-800-667-6625 for pricing and to place order.
Please Note: Once ordered, this product cannot be cancelled or returned for credit.
Call for Pricing
*Price excludes GST

Product Features

  • External AC power supply
  • Single input of 120 - 240 VAC
  • Order two for redundant power
  • Works with SM261A-CARD
  • Works with Power inputs on controller cards for SM760A
  • Works with Power inputs on controller cards for SM960A


The external AC power supply takes mains power and converts it to 12 VDC 5 A regulated power to supply power for the gang switch chassis, two external power supplies can be used to provide redundant power. 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 Non-Latching (SM965A) DB9 A/B Non-Latching (SM966A) DB15 A/B Non-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 Non-Latching (SM978A) CAT6 Non-Latching (SM979A) This product works with: Power Supply (SM961-PS) A/B Switch Cards (SM965A, etc.)

Tech Specs

* 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.



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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.


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