Studio Technologies 230 2008 - Manual (Page 45)

Model 230 User Guide Issue 7, October 2008
Studio Technologies, Inc. Page 45
P11: Intercom interface, pin 1 common,
pin 2 DC with channel 1 audio, pin 3
channel 2 audio. Follows back-panel
3-pin female XLR pin assignment.
Additional functions can be accessed
using these 3-position headers:
P13: Talkback-to-intercom channel 2 “dry”
output, pin 1 common, pin 3 audio.
P14: Talkback-to-intercom channel 1 “dry”
output, pin 1 common, pin 2 audio.
P15: Remote switch connections, pin 1
common, pin 2 talkback button 1, pin 3
talkback button 2.
P16: Auxiliary relay contact B, pin 1
normally closed, pin 2 common, pin 3
normally open.
P17: Auxiliary relay contact A, pin 1
normally closed, pin 2 common, pin 3
normally open.
P18: Internal power supply rails, pin 1
common, pin 2 +12 Vdc, pin 3 –12 Vdc.
P19: Remote switch connections, pin 1
common, pin 2 main out button, pin 3 aux-
iliary (currently not supported in software).
P21: Pushbutton backlighting, pin 1 com-
mon, pin 2 button lamps, pin 3 current
limited 24 volts from external 24 volt DC
input.
For revision levels E or later printed
circuit boards (PCBs):
P3: External 24 volt DC input, pin 1 com-
mon, pin 2 +24 volts, pin 3 not used.
Back-panel 2.1 x 5.5 mm jack has +24
volts on center pin. Header P12 is used by
the back-panel 24 Vdc jack assembly and
is electrically in parallel with P3.
P4: Headphone output, pin 1 common,
pin 2 tip (left), pin 3 ring (right).
P5: Microphone input, pin 1 shield, pin 2
high, pin 3 low. Follows back-panel 3-pin
female XLR pin assignment.
P6: Main output, pin 1 shield, pin 2 high,
pin 3 low. Careful! Back-panel 3-pin male
XLR has pin 1 floating, pin 2 high, pin 3
low.
P7: Line-level talkback output 1, pin 1
shield, pin 2 high, pin 3 low. Careful!
Back-panel 3-pin male XLR has pin 1
floating, pin 2 high, pin 3 low.
P8: Line input 1, pin 1 common, pin 2
high, pin 3 low.
P9: Line input 2, pin 1 common, pin 2
high, pin 3 low.
P10: IFB input, pin 1 common, pin 2 DC
with channel 1 audio, pin 3 channel 2
audio. Follows back-panel 3-pin female
XLR pin assignment.
P11: Intercom interface, pin 1 common,
pin 2 DC with channel 1 audio, pin 3
channel 2 audio. Follows back-panel
3-pin female XLR pin assignment.
Additional functions can be accessed
using these 3-position headers:
P13: Talkback-to-intercom channel 2
“dry” output, pin 1 common, pin 3 audio.
P14: Talkback-to-intercom channel 1
“dry” output, pin 1 common, pin 2 audio.
P15: Auxiliary relay contact B, pin 1
normally closed, pin 2 common, pin 3
normally open.
P16: Auxiliary relay contact A, pin 1
normally closed, pin 2 common, pin 3
normally open.
P17: Internal power supply rails, pin 1
common, pin 2 +12 Vdc, pin 3 –12 Vdc.