DX-4400
– 3G-SDI Text & Graphics Overlay Inserter – User Manual
Page 96 of 125
A.1.1 SDI Video Interfaces
The
DX-4400
supports two SD/HD/3G-SDI input and two SD/HD/3G-SDI output ports and two SD/HD/3G-SDI
loop output ports which are a pass-through of the SDI inputs. These interfaces support SMTP 424M video
formats. The SDI Outputs are reclocked through IP logic in the FPGA and run asynchronously to the video
inputs.
A.1.2 DB9 RS-232 Control Port, J10
The DB9 RS-232 Control Port is the primary port used to control the text overlay. It is a standard DB9 female
connector and is set at 115,200 baud and 8,N,1 and no flow control. The pin assignments are provided in the
following table.
Table 33: RS-232 Serial Control Port, DB9 Pin Assignments
Pin
Signal Direction
Signal Name
2
Output
Transmit Data
3
Input
Receive Data
8
Output
CTS (Note 1)
7
Input
RTS (Note 1)
5
-
Signal Ground
A.1.3 USB Serial Control Port, J11
The USB Serial Control Port is an RS-232 serial port which can also be used to control the text overlay. It is a
USB mini-B connector and is set at 115,200 baud operation (8,N,1) and no flow control. The port interfaces to a
PC with a standard USB 2.0
– A to Mini B (Male-Male) cable.
A.1.4 USB OTG Port, J4
The USB OTG (On-the-Go) Port can also be used to mount a USB flash drive to upload files to transfer to the SD
Card. The port interfaces a standard OTG Micro USB to USB Male-to-Female Cable Adapter, (Microtronix PN:
811-USN-OTG).
A.1.5 RS-232 Serial Console Port, J5
The RS-232 Serial Console Port is available on J5 if a user wishes to connect to the Linux operating system by
logging in as a user to issue Linux operating system commands to the operating system for system level
debugging or special configuration. The default Serial communication parameters are 115,200 baud, 8,N,1. The
Console Port does not require a user login to the Root Account.
J5 is a 6-pin 1.25mm header (Hirose Electric Co Ltd DF13-6P-1.25DSA(50) / Digi-Key part number H3309-ND).
The mating connector is a Hirose Electric Co Ltd DF13-6S-1.25C available from Digi-Key as PN: H2183-ND. The
pins assignments are listed in the table below.
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