The STU Secure Voice Card for the military market replaces the 4 channel voice daughter board, adding STU relay support capability to the basic 4 channel voice card to support encrypted STU-IIB and STU-III phone and data traffic from 2.4Kbps to 9.6Kbps.
Features:
Installation Docks to Quad Voice Card
Functionality Adds STU IIB and STU III (incl. STU III-R) Relay Capability to Analogue Voice Cards
