User's Manual

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PIN DESCRIPTION
A Ground
B Audio Output (speaker)
C Audio PTT or RS-232 WR Tx/Dev Rx
D Audio Input (microphone)
E RS-232 Wave Relay
®
Rx/Device Tx
F +5V Accessory Power
NOTE
The PTT Audio connections for the MPU4
is not wired the same as the MPU3 or Quad
Radio Router.
CONNECTOR INFORMATION
•NATO U-283/U Standard Wiring for PTT
Devices
•IP67 Rated
WHAT TO CONNECT
WR-ACC-067, WR-ACC-079
PTT AUDIO - MPU4 AID
HARDWARE DETAILS