Wireline J21 (Rj45); Recorder J23 (Rj45); Table 6-8. Wireline; Table 6-9. Recorder - Motorola APX 7500 Detailed Service Manual

Cabling Diagrams and Rear Panel: Rear Panel Connector Pin Descriptions
Pin
6 HDST2_PTT*
7 HDST2_SPKR+
8 GND
6.6.8

WIRELINE J21 (RJ45)

Pin
1 N/C
2 N/C
3 LINE1+
4 LINE2+
5 LINE2-
6 LINE2+
7 N/C
8 N/C
6.6.9

RECORDER J23 (RJ45)

Pin
1 REC_AUDIO
2 GND
3 REC_ACTIVITY*
4 N/C
5 N/C
6 N/C
7 N/C
8 N/C
68009482001
Signal Name
Active low logic input for Headset 2 PTT
Speaker high output for use with Headset 2.
Ground

Table 6-8. Wireline

Signal Name
Not Used
Not Used
TX and RX high audio for 2-wire operation or
RX high audio for 4-wire operation. 600 Ohms
or Open Impedance.
TX high audio for 4-wire operation. 600 Ohms
or Open Impedance.
TX low audio for 4-wire operation. 600 Ohms
or Open Impedance.
TX and RX low audio for 2-wire operation or
RX low audio for 4-wire operation. 600 Ohms
or Open Impedance..
Not Used
Not Used

Table 6-9. Recorder

Signal Name
Receive audio, tones, and/or transmit audio
from the Codec at a fixed level of
approximately 300mVrms.
Ground
Active low logic output to indicate when there is
activity on the REC_AUDIO output pin.
Not Used
Not Used
Not Used
Not Used
Not Used
Description
Description
Description
September 9, 2011
6-7