Specifications

AIRMATE-USB manual page: 17
10. TECHNICAL SPECIFICATIONS
MIC INPUTS XLR connector balanced impedance 2 kOhm.
sensitivity -60dBu.
Pin 1 = ground.
Pin 2 = hot (in phase).
Pin 3 = cold (out of phase).
+48 volt phantom
INSERT Stereo jack.
Tip=Input (connect to output of signal processor)
Ring=Output (connect to input of signal processor)
Ground=shield
LINE A/B Cinch connector, sensitivity -20dBu to +20 dBu.
sleeve =ground.
DISC INPUTS On B inputs only when optional R.I.A.A. pre-amp is installed.
47kOhm, 0.5 mV to 10 mV.
START REMOTE Stereo jack, Tip is a change over contact between sleeve and ring.
NOT FOR 110/220 VOLT SWITCHING!!!!!!!
It can only switch 24V/50mA max!
MASTER OUTPUT CONNECTORS
MAIN XLR male connector for left and right.
pin 1 = ground.
pin 2 = in phase.
pin 3 = out of phase. (ground compensation circuitry, 45 Ohm)
output level = +4dBu/100Ohm.
TAPE Two cinch connectors for left and right.
-10dBv (300mV) /10kOhm.
Sleeve=ground.
2 TRACK INPUTS Cinch connectors.
-10dBv (300mV) / 10kOhm.
Sleeve = ground.
AUX RETURN Cinch connectors for left and Right.
-10dBv (300mV) / 10kOhm.
Sleeve = ground.
CLEANFEED OUTPUTS Cinch connectors paralleled
+4dBu (1.22volt) output / 47 Ohm.
Sleeve = ground.
RED LIGHT Stereo jack connected to internal change over relay.
Center Contact = Tip
Normally Closed = Ground
Normally Open = Ring
ANNOUNCER OUTPUT Stereo jack for left and right
Tip = left
Ring = right
Sleeve = Ground
AUX OUPTUTS Cinch connectors (for left and right).
+ 4 dBu (1.22 volt) / 100 Ohm (Sleeve = ground.)
MONITOR OUTPUT Cinch connectors for left and right.
+ 4 dBu (1.22 volt) / 100 Ohm.
Sleeve = ground.