Route the control cable along the side of the board and secure with the
supplied cable ties and anchors.
3. Remove power from the relay pack and attach the “Mic Pro” control cable to
the Studio SLAVE Relay Pack mini-din input connector:
4. If you are using another type of relay pack cut off the mini-din connector,
strip back the cable insulation about 4 inches, strip and tin the ends of the
wires and connect the wires as follows:
a. Red wire to 9-12VDC
b. Black wire to power common
c. Green to relay 1 common
d. Yellow to relay 1 NO
e. Orange to relay 1 NC
f. Grey to any input common
g. Blue to Latch ON
h. White to Latch OFF
i. The pink, beige and brown wires are not used and may be cut off.
5. Attach the supplied Insert control cable to the relay pack as follows:
a. Red wire to relay 3 NC (mic preamp output-tip)
b. Black wire to relay 3 common (line level input to board-ring)
c. Blue wire to relay 3 NO (1K resistor network to shield within cable)
Note: If your board Insert connector is wired differently swap the red
and black wires.
6. Connect the Insert control cable plug to the MIC 1 insert receptacle.
7. Connect other desired optional Insert control cables to successive relay
contact terminals as in step 4 and to their respective insert receptacles.
8. Connect Left channel monitor speaker muting as follows:
a. Connect board Left Control Room or monitor output high to relay 5 NC
b. Connect Left Monitor Amp in high to relay 5 common
c. Connect one end of a 620-680 ohm resistor to relay 5 NO
d. Connect the other end of the resistor to both the Left Control Room or
monitor output low and the Monitor Amp in low. This may involve
connecting the shields to this connection also. Test for ground loop
hum and add or remove the shields accordingly.
9. Connect the Right channel monitor speaker muting as shown in step 8 to
relay 6. Substitute Right for every mention of Left.
The use of the above resistors assures that the Monitor Amplifier is muted and
properly terminated during the “Mic On” condition to avoid any speaker noise. The
Insert Jack has the proper termination already installed within the cable.
Typical Wiring Connections to the Studio SLAVE Auxiliary Relay pack
3
