LBI-39101
32
Table 15 – Desk Microphone
(female DB-9 labeled "
DESK MIC
")
PIN
NAME
USE
1
no connection
2
PS_GND_IN
ground for pin 3
3
MONITOR_PTT_IN
monitor PTT (enable)
input
4
PS_GND_IN
ground for pin 6
5
DESK_MIC_IN_GND
mic audio ground
for pin 9
6
DESK_MIC_PTT_IN
PTT input; see pin 4
7
no connection
8
no connection
9
DESK_MIC_IN
mic audio input;
see pin 5
Table 16 – Operator Headset
(female DB-9 labeled "
OPER H/S
")
PIN
NAME
USE
1
no connection
2
no connection
3
OPR_JACK_SENSE_IN
headset connected/not
connected sense input
4
PS_GND_IN
ground for pins 3 & 6
5
OPR_HEADSET_
MIC_IN_GND
mic audio ground
for pin 9
6
OPR_PTT_IN
PTT input; see pin 4
7
OPR_HEADPHONE_OUT
headphone/earphone
output; see pin 8
8
OPR_HEADPHONE_
OUT_GND
headphone/earphone
ground for pin 7
9
OPR_HEADSET_MIC_IN
mic audio input;
see pin 5
Table 17 – Supervisor Headset
(female DB-9 labeled "
SUPER H/S
")
PIN
NAME
USE
1
no connection
2
no connection
3
SUPR_JACK_SENSE_IN
headset connected/not
connected sense input
4
PS_GND_IN
ground for pins 3 & 6
5
SUPR_HEADSET_
MIC_IN_GND
mic audio ground
for pin 9
6
SUPR_PTT_IN
PTT input; see pin 4
7
SUPR_HEADPHONE_
OUT
headphone/earphone
output; see pin 8
8
SUPR_HEADPHONE_
OUT_GND
headphone/earphone
ground for pin 7
9
SUPR_HEADSET_
MIC_IN
mic audio input;
see pin 5
Table 18 – Select Speaker
(male DB-9 labeled "
SEL SPKR
")
PIN
NAME
USE
1
SELECT_SPEAKER_OUT
high-impedance
speaker audio output
2
SELECT_SPKR_OUT_GND
ground for pin 1
3
no connection
4
+12V
speaker amp 12 Vdc
5
+12V
power; see pins 7 & 8
6
no connection
7
PS_GND_IN
speaker amp
8
PS_GND_IN
power grounds
9
no connection