68009482001 September 9, 2011
Cabling Diagrams and Rear Panel: Rear Panel Connector Pin Descriptions 6-7
6.6.8 WIRELINE J21 (RJ45)
Table 6-8. Wireline
6.6.9 RECORDER J23 (RJ45)
Table 6-9. Recorder
6 HDST2_PTT* Active low logic input for Headset 2 PTT
7 HDST2_SPKR+ Speaker high output for use with Headset 2.
8 GND Ground
Pin Signal Name Description
1 N/C Not Used
2N/C Not Used
3 LINE1+ TX and RX high audio for 2-wire operation or
RX high audio for 4-wire operation. 600 Ohms
or Open Impedance.
4 LINE2+ TX high audio for 4-wire operation. 600 Ohms
or Open Impedance.
5 LINE2- TX low audio for 4-wire operation. 600 Ohms
or Open Impedance.
6 LINE2+ TX and RX low audio for 2-wire operation or
RX low audio for 4-wire operation. 600 Ohms
or Open Impedance..
7 N/C Not Used
8N/C Not Used
Pin Signal Name Description
1 REC_AUDIO Receive audio, tones, and/or transmit audio
from the Codec at a fixed level of
approximately 300mVrms.
2 GND Ground
3 REC_ACTIVITY* Active low logic output to indicate when there is
activity on the REC_AUDIO output pin.
4N/C Not Used
5 N/C Not Used
6N/C Not Used
7 N/C Not Used
8N/C Not Used
Pin Signal Name Description
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