GS-FW002 4 Wire Talkback
This is a simple single 4 wire talkback unit.
It is designed to fit in one half of a 3U rack space (left or right).

Mains powered 230 VAC
Size 3RU
takes up half 19" rack width
Rack ears can be removed
or rotated in 90 degree steps
Single 4
wire circuit
Front
panel or external Mic with separate gain controls
Compressor/ limiter circuit for mic
Lever key
for mic operation
4 wire input transformer balanced
4 wire
Inputs has gain control
Front
panel Loudspeaker
Headphone
Jack (breaks LS)
Overall
LS/ Headphone volume control
Variable
LS dim (when lever key switched)
Audio
connections on rear panel XLRs
Block Diagram of the GS-FW002 as
adobe .pdf
Panel Drawing of the GS-FW002 as adobe .pdf