T ELEPHONICS C ORPORATION
TM115007 REV A (04/07) B-11
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C
OMMUNICATION S YSTEMS D IVISION
Table 2
Pin-out of 8-Pole Audio Jack
PIN NR J3 SIGNAL NAME COMMENT
1 Audio IN +
2 CTRL_DATA2_IN
3 Audio OUT +
4 CTRL_DATA1_OU
T
5 DATA_IN_EXT RS-232
6 DATA_OUT_EXT RS-232
7 Power IN 11 – 15 V DC
8 GND