Black Box SM966A Pro Switching Plus 4U DB9 A/B Switch Card, Latching

The SM966A puts one line on either of two paths: Pro Switching Plus 4U DB9 A/B Switch Card, Latching, Pro Switching Plus 4U DB9 A/B Switch Card, Latching. Connectors are (3) DB9 (Female). Gang Switch, 4U, 18-Card (SM960A). External Power Supply 100- 240 VAC (SM961-PS).

Front-panel indication: (2) LEDs (A and B). Internal Power Supply -48 VDC (SM760-PS1).