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HD9690 Series HDTV Graticule Generator Manual
signal to one another to verify link integrity. The rear panel is fitted with two LEDs to monitor the
Ethernet connection.
10/100
This Amber LED is ON when a 100Base-TX link is last detected. The LED is
OFF when a 10Base-T link is last detected (the LINK LED is ON). Upon power-
up the LED is OFF as the last detected rate is not known and therefore defaults
to the 10Base-T state until rate detection is completed.
LN/ACT
This dual purpose Green LED indicates that the HD9690 has established a valid
linkage to its hub, and whether the HD9690 is sending or receiving data. This
LED will be ON when the HD9690 has established a good link to its supporting
hub. This gives you a good indication that the segment is wired correctly. The
LED will BLINK when the HD9690 is sending or receiving data. The LED will be
OFF if there is no valid connection.
In order to use the Ethernet connection you will have to configure the IP addresses for your network.
See sections 5.3.1.1 and 5.3.1.2.
2.6.
CONNECTING THE GENERAL PURPOSE INPUTS
The 9 pin GPI connector has 8 programmable general purpose inputs (GPI) as shown in Table 2-3.
The schematic representation is in Figure 2-3. The GPI's are used as an additional way to activate the
user presets. The GPI inputs are active low, which means a ground level on the input will activate the
preset when the Opto isolator is normally powered.
2.7.
CONNECTING THE REMOTE CONTROL PANEL (RCP AND DCP VERSIONS ONLY)
The Graticule Generator can be sold with integrated front panel control, or with a rack mountable or
desktop remote control panel. When the units are shipped with the remote panel, the front panel of the
unit has only the PSU Status indicator.
The REMOTE PANEL 9 pin D connector on the rear panel is used to connect the remote control panel
to the main electronics unit. The 9 pin straight through cable provided can be used to connect the
remote panel to the graticule generator. For longer distances, simply make your own cable of the
required length according to the diagram in Table 2-6. Communications to the remote panel is through
an RS-422 connection, so the panel can be located up to 1000 feet from the main electronics unit. A
plug in 12 VDC adapter supplies power for the remote control panel.
Page 2-6
VDC
10 K
GPI
Figure 2-3: General Purpose I/O Schematic
Revision 1.5
to
internal
circuit
INSTALLATION
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