User's Manual Part 1

44 OEMV Family Installation and Operation User Manual Rev 5B
Chapter 3 Installation and Set Up
V3 COM3 Configuration starting on Page 44.
The OEMV-3 offers a user-selectable configuration for the COM1 port.
For OEMV-3, the configuration is selected using the USERIO1 pin. By default, RS-232 is selected as
the USERIO1 input is set LOW by an internal pull-down resistor. To select RS-422 upon startup,
apply 3.3 V to USERIO1. Alternatively, tie USERIO1 to pin 38 of the 40-pin connector on the
OEMV-3.
Pin 38, on the 40-pin connector, is usually an ERROR indicator, and during normal OEMV card
operations is set LOW, but for < 2 s during OEMV card initialization, immediately after applying
power to the OEMV card, this pin is set HIGH at 3.3 Volts. It drops to LOW <2 s later when the
OEMV card has been fully booted up and the [COMx] prompt is output from the OEMV card on all
COM ports.
USERIO1 needs to be initialized HIGH during this initial boot-up phase in order to set up the COM1
port for RS-422 mode. Therefore, tie pin 38 to a 3.3 V source to trigger the USERIO1, to set the
COM1 port to RS-422 mode.
DL-V3 COM3 Configuration
You can switch between Ethernet and Bluetooth (default) on COM3 using the APPCONTROL
command. In the case of switching to Ethernet, power is automatically applied to it after switching.
Bluetooth, on the other hand, may be in sleep mode. If Bluetooth operation is required, it must be put
into active mode using the COMVOUT command. The ethenet requires more setup configuration
steps. These involve configuring serial, and network, parameters. See also Appendix C starting on
Page 189 for details.
Further details on the commands above can be found in the DL-V3 Firmware Reference Manual.
3.3 Additional Features and Information
This section contains information on the additional features of the OEMV family receivers, which
may affect the overall design of your receiver system.
3.3.1 Strobes
On OEMV family receivers, a set of inputs and outputs provide status and synchronization signals.
These signals are referred to as strobes. Not all strobe signals are provided on all receivers. However,
for those products for which strobes are available, you may want to design your installation to include
support for these signals.
Pin-out information can also be found in Appendix A:
• OEMV-1 pin-out starting on Page 135
• OEMV-1G pin-out starting on Page 141
• OEMV-2 pin-out starting on Page 147
• OEMV-3 pin-out starting on Page 153
• DL-V3 port pin-out on Page 158
• ProPak-V3 port pin-out on Page 165