Clear-Com TW-12C - Manual (Page 8)

S y s t e m I n s t a l l a t i o n M a n u a l 1 - 2
The TW-12C is designed to connect the two intercom systems in a completely
transparent manner. Either “side” of the interface can connect to a Clear-Com
intercom system or to an RTS intercom system, thereby providing these
combinations:
• Clear-Com to Clear-Com
• Clear-Com to RTS
• RTS to RTS
The TW-12C provides a pair of 3-pin, XLR connectors (one male, one female)
for each side of the interface.
FAST, EASY & ACCURATE SETUP
Setup of the hybrid circuitry is accomplished by adjusting four controls located
on the front panel. Use a standard intercom headset or headphones with a 1/8”
mini jack to obtain a near-perfect match to an intercom line at all frequencies.
The test signal, a 400 Hz square wave, provides both low and high frequency
material for nulling the entire bandwidth.
Figure 1-1: TW-12C Block Diagram
TRANSPARENT OPERATION
After setup, the TW-12C is transparent to the user. A GAIN trim pot control for
each side is available allowing an adjustment of +/- 4dB for each side of the
interface.