Installation 6-12PTX-PRO User and Technical Manual
6.10.1 PTX-PRO Programming
The RS-232 data connection is used when programming the
PTX-PRO using the Configurator software running on a
Microsoft Windows-based PC.
The PTX-PRO is configured to be a DTE device. If you need to
access the radio programming connections, a null modem cable
is used to connect the PTX-PRO to your PC. One cable is
supplied with each PTX-PRO ordered. Additional cables can be
purchased from MRC or from any computer or electronics store.
Programming connections are shown in Table 6-6.
6.10.2 Wayside Data
Overview The Wayside channel is a simplex data channel
transmitting data from the PTX-PRO to a receiver system. See
Figure 6-11. Data inputs to the PTX-PRO are provided via
Table 6-6: RS-232 Panel Connector
Pin Function Comments
1N/C
2 Receive Data Used for communication between
PTX-PRO and external computer.
3 Transmit Data
4N/C
5GND
6N/C
7 Transmit Data Wayside data
8 Receive Data
(Wayside)
Used to carry Wayside Data from
an external device.
9N/C
connections to the serial port through a Multipurpose Data Cable
provided by MRC.
Compatibility MRC has verified that the Wayside channel is
compatible with the following receivers:
• STRATA Receiver Unit (RXU) with MPEG decoding
• STRATA Receiver Control Unit (RCU) with MPEG
decoding.
• Tandberg Alteia IRD (Integrated Receiver Decoder)
Figure 6-11: Wayside Simplex Data Channel
Wayside Connections to the Serial Port Connecting the
Wayside channel to the serial port requires use of a Serial/
Wayside Multipurpose Data Cable as shown in Figure 6-12 on
page 6-13 and Figure 6-17 on page 6-16.
TX
RX
WAYSIDE
WAYSIDE
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