PS20 Two-Wire Intercom Power Supply

The RTS PS-20 is the new RTS Two-Wire Intercom power supply. The
PS-20 features two- and four-channel operation, RTS monitoring,
two-channel program input, audio linking, and three-mode operation:
RTS 2-channel, RTS 4-channel and Clear-Com mode. It also has double
the power output of the PS-31 per c...