May 15, 2012 • Alcorn McBride TourTraXX User’s Manual • Rev 1.3 • Page 11
RS-232C Serial Connector
A serial cable is
provided with each
TourTraXX.
This input is a standard DB-9 male RS-232C connector, intended to be
connected to a PC or control system using a straight-through (not null-
modem) 9-pin cable. The pinout appears below. Please refer to the
Serial
Protocol
section for a list of control commands.
Serial Connector Pinout
Pin
Function
2
TXD (data from TourTraXX)
3
RXD (data to TourTraXX)
5
Ground
GPS In
The 6-pin mini-DIN connector is used for GPS connection. When a valid
GPS source is connected and satellite lock is achieved, TourTraXX will use
the GPS time to set the system clock once an hour. While using GPS to sync
the system clock, make sure the time zone and daylight savings time mode is
properly set on the unit. GPS can also be used to trigger commands at
specific geographic locations. See the
GPS Control
section of this manual
for more details. The TourTraXX accepts a standard NMEA-0183 data
stream at 4800 baud.
Note: NTP time update must be disabled for GPS time updates to occur.
NTP can be enabled/disabled from the front panel menu.
Microphone Input
This 4-pin Molex type connector is used to connect a microphone and push-
to-talk(PTT) switch. The TourTraXX can route the microphone input to any
channels or group of channels. See the section on
“Microphone Paging”
for
additional details.
Mic Connector Pinout
Pin
Function
1
Mic (-)
2
Ground
3
Key (Push-To-Talk)
4
Mic (+)
