Ensemble Designs 5420 SD Logo Inserter - Manual (Page 25)

APPENDIX A
Serial Control
The 5420 Digital Logo Inserter module has a serial interface port which supports a
command protocol for remote control of the eight GPI selections. This serial port is used
by the optional Avenue 5815 GPI Control Panel or an external GPI control device. The
port can also be used by external devices such as a PC to control the GPI inputs.
Refer to the pinout information in the illustration below for the cable needed to connect a
PC or other device to the serial port of the module. The port can be cabled to support
either RS-422 or RS-232 signaling levels.
The details for the serial protocol are outlined in the section below.
The communication standard for this port is as follows:
Data Rate: 38.4 Kbaud
Start Bits: 1
Stop Bits: 1
Parity: None
The command and status messages for this port are in plain ASCII form, with each
command or message terminated with a carriage return (shown as below).
Commands to the module are as follows:
Fire GPI Command
Syntax: G1
This will fire GPI 1.
The module will respond with a single status message:
Syntax: S1
Model 5420 Digital Logo Inserter
External Serial
Control Device
DB-9 Male
5420 Control
Connector
HDB-15 Male
3
2
5 2
4
1, 9
GND
TX
RX
Pin 1
Pin 1
Pin 11 Pin 6 Pin 6
Control
External Serial Control to Avenue Frame Control Cable Pinout
5420-25