Specifications

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