User's Manual

14221-1510-4440, Rev. B
53
Table 11-1: Option Cable 14002-0174-08 Interconnections
44-PIN I/O
CABLE
CONNECTOR
P1 PIN
SIGNAL
NAME
TO/FROM DESCRIPTION
31
GPS_NMEA
_TX
P5 pin 3
NMEA-
Formatted GPS Receiver Module Initialization Data Serial
Data Input. ±15-volt RS-232 input level.
7 GND P5 pin 5 Ground for GPS Serial Data Signals.
33 MIC_NOISE (none)
Background noise microphone input (MIC_NOISE) and input
ground/reference (MIC_NOISE_ALO). As of the
publication of this
manual, this input/function is not supported. 600-
ohm input
impedance. MIC_NOISE_ALO is connected to ground.
36
MIC_NOISE
_ALO
(none)
38 TD_B P6 pin 2
Transmit Data (radio output), Receive Data (radio input), Clear-To-
Send (radio input), and Ready-To-Send (radio output), and Ground/-
Reference lines for serial port B. This radio programming
port is
active when the front panel mic connector’s sense pin is not ground-
ed.
NOTE: Rev. – cables did not
have the CTS and the RTS
handshake
lines available at P6 pins 7 and 8.
39 RD_B P6 pin 3
42 CTS_B P6 pin 7
43 RTS_B P6 pin 8
1 GND P6 pin 5
11, 34, 35, 37,
40, 41 and 44
(reserved) (none) These pins are not used.