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LBI-39101
diagram. Figure 11 shows the rear panel and serves as a
guide to the desired table(s).
Table 12 – CEC/IMC Audio Lines
(female DB-25 labeled "LINES 1-4")
PIN
NAME
1
LINE_1_IN+
2
LINE_1_IN-
3
no connection
4
LINE_2_IN+
5
LINE_2_IN-
6
no connection
7
LINE_3_IN+
8
LINE_3_IN-
9
no connection
10
LINE_4_IN+
11
LINE_4_IN-
12
no connection
13
no connection
14
LINE_1_OUT+
15
LINE_1_OUT-
16
no connection
17
LINE_2_OUT+
18
LINE_2_OUT-
19
no connection
20
LINE_3_OUT+
21
LINE_3_OUT-
22
no connection
23
LINE_4_OUT+
24
LINE_4_OUT-
25
no connection
* With respect to the Enhanced Audio Enclosure. For example,
pins 1 and 2 are Enhanced Audio Enclosure line inputs; audio
signals on these inputs originate from the CEC's/IMC's CIM
line outputs. Also see Figure 5.
30
USE *
Line 1
balanced input
Line 2
balanced input
Line 3
balanced input
Line 4
balanced input
Line 1
balanced output
Line 2
balanced output
Line 3
balanced output
Line 4
balanced output
Table 13 – Call Director
(female DB-9 labeled "CALL DIR")
PIN
NAME
1
ON_HOOK_NO
2
CD_HOOK_SENSE_IN
3
CD_JACK_SENSE_IN
4
PS_GND_IN
5
CALL_DIRECTOR_IN-
6
ON_HOOK_COMMON
7
CALL_DIRECTOR_OUT+
8
CALL_DIRECTOR_OUT-
9
CALL_DIRECTOR_IN+
Table 14 – Boom/Gooseneck Microphone
(female DB-9 labeled "B/G MIC")
PIN
NAME
1
AGND
2*
PS_GND_IN
3*
B/G_MIC_SENSE_IN
4
PS_GND_IN
5
B/G_MIC_IN_GND
6
B/G_PTT_IN
7
no connection
8
no connection
9
B/G_MIC_IN
* Jumper pins 2 and 3 on mating connector.
USE
output;
see pin 6 and Table 8
inputs; see Table 8
½ CD bal. line input
common for pin 1
CD balanced
line ouput
½ CD bal. line input
USE
mic audio shield
ground for pin 3
mic connected/not
connected sense input
ground for pin 6
mic audio ground
for pin 9
PTT input; see pin 4
mic audio input;
see pin 5 and Table 6
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