BLACK BOX 

BLACK BOX SM977A-ST GANG SWITCH - 4U MULTIMODE FIBER ST A/B CARD LATCHING

Mfg Part Number:  SM977A-ST  
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Price: $1,161.80
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Jun 21, 2026
No Sales Tax except these states
, PO and Wire.
  • 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 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 SM977A-ST
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Name Pro Switching Gang Switch - 4U, Multimode Fiber ST A/B Card Latching
Physical Characteristics
Product Color Black
Height 3"
Width 8.3"
Depth 9.3"
Weight (Approximate) 14 oz
Miscellaneous
Application/Usage Power Supply
Country of Origin United States
TAA Compliant Yes
Warranty
Limited Warranty 1 Year
product information
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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