15
Setup and Programming
Programming and viewing of the various setup and operating parameters is accomplished using the front panel back lit,
two line, sixteen character wide LCD along with the two LEFT and RIGHT ‘ENCODER SELECT’ buttons and the five LEFT,
RIGHT, UP, DOWN and ENTER buttons. The name of the parameter is on the top line of the display and the setting value
is on the bottom line.
To observe a certain parameter setting without intending to change its value, just use the LEFT and RIGHT ENCODER
SELECT buttons and the LEFT and RIGHT arrow buttons to navigate through the menus shown in the software flow
chart on the previous page. The current setting for each parameter is shown on the bottom line of the display. Note that
depending upon certain settings, some screens are not needed and will be skipped.
To make a change in the displayed parameter and its setting and if this is the initial setup, you will want to enter the
‘program’ mode. To do this, press the ENTER button that is located in the center of the four arrow buttons and hold in for
several seconds until the bottom line of the display begins to flash.
After you are in the program mode (bottom line of screen flashing) use the LEFT and RIGHT arrows to navigate among
screens and use the UP and DOWN arrows to change the parameter setting. When ENTER is pressed, the new settings will be
loaded and stored and the unit will exit the ‘program’ mode. You may wish to not press ENTER until you have gone through
all screens and settings and then press ENTER to save and load all changes in one step, OR you can store just one or several
parameters at a time and reenter program mode to set the next. Either method is acceptable.
This section provides additional details regarding the selectable items shown in the ‘program’ mode on the Software Flow
Chart on page 10.
SETUP: EH24A
USER NAME: Variable – this sets the username for the ethernet control interface authorization; this field is case-sensitive
PASSWORD: Variable – this sets the password for the ethernet control interface authorization; this field is case-sensitive
***(for first time setup, the default USER NAME is "admin" and the default PASSWORD is "EH24")***
HOST NAME: Variable – this sets the display hostname for the ethernet control interface
DHCP: ENABLED, DISABLED – this configures the ethernet control interface to use DHCP for its IP configuration settings
when enabled, or to use the static IP configuration that follows when disabled
IP ADDRESS: Variable – this sets the ethernet control interface's static IP address when DHCP is disabled
SUBNET MASK: Variable – this sets the ethernet control interface's IP subnet netmask when DHCP is disabled
GATEWAY ADDRESS: Variable – this sets the default gateway for the ethernet control interface when DHCP is disabled
OUTPUT MODE: This menu provides a means to determine whether the EH24A output should be QAM and ASI or ASI
output only.
PACKET DELAY: This menu allows the user to determine the packet delay. The choices are 0 to 200 microseconds. A good
default value is usually 50 uS. If pixilation is seen in some programs, the delay may need to be increased. Increase in small
increments as too much delay can cause a buffer overflow -this will be indicated in the front panel LCD.
DTA/EAS CONTROL: The DTA control is used when EH24As are used to supply the QAM signals to DTA set top boxes. It
allows for an ASI stream, generated by a PC to be input to the headend’s Master EH24A. This control allows for generating a
transport stream that provides a virtual channel map to the DTAs (Known as SCTE 65 tables), and/or provides code updated
to the DTA’s (in a format known as DSM-CC) so that they can be updated through the QAM channel transport stream. The
choices are DISABLED, MASTER, and SLAVE.
DTA MODE: This menu choice allows the user to activate or deactivate DTA mode. The choices are ENABLE and DISABLE
.
