Remote Receiver/Driver Functions Inoperative; No Alarm Response; Cpu Software Version Numbers; Glossary Of Terms - Philips LTC 8100 Series Installation Instructions Manual

Allegiant microprocessor-based switcher/control systems
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3.
Poor video on monitor: Check monitor for proper
termination. Check operation of known good camera
directly to monitor.
4.
Partial or no on-screen alphanumeric display: Check user
selectable brightness feature (via USER 5 keyboard function)
and then verify alphanumeric display has been enabled (via
USER 6 keyboard function). Position the overlay with
USER 4 function.
5.
Time and Date portion of on-screen display alternates with
indication of "?? ?? ??" and the LED on the front panel of the
unit indicates a low battery condition. Replace CPU
batteries.

21.4 Remote Receiver/Driver Functions Inoperative

1.
All receiver/drivers and functions inoperative: Verify CODE
LED indicator on the front panel lights during P/T/Z
control actions. If LED does not flash, the unit requires
service.
2.
Individual receiver/driver non-operative: Check green LED
code indicator inside Receiver/Driver box. If not lighting,
check shielded-twisted-pair cable between the unit and
Receiver/Driver box. Confirm camera address setting in
Receiver/Driver corresponds to same camera number as
selected by the keyboard. Perform internal Receiver/Driver
local test to verify operation of Receiver/Driver circuitry and
pan/tilt/zoom wiring.
3.
AutoDome series dome cameras are not operating in a
variable speed fashion: Verify CPU DIP switch 7 is selected
for variable speed mode.

21.5 No Alarm Response

1.
No system alarms operative: Verify the Alarm LED indicator
on the front panel lights when an 'alarm' is applied to the
unit. If not, verify alarm programming correctly enabled.
2.
Individual cameras/monitors not responding when alarmed:
Ensure desired cameras are properly armed on the
appropriate armed monitors in the system. Verify alarming
device and cable to the unit's alarm interface connections are
intact.
3.
Incorrect system alarm response: Verify that the desired
alarm response mode has been selected. Refer to the section
on Select User Functions for instructions.

21.6 CPU Software Version Numbers

During the evolution of the system, various CPU software
versions will be released. In certain troubleshooting cases, Factory
Technical Support personnel may ask for the version of the CPU.
If it becomes necessary to obtain a CPU software version number,
follow the steps below:
1.
Using a system keyboard, an operator with a level 1 priority
can enter keyboard User Function 23. Press the User key.
Enter 23 using the numeric keypad, then press the ENTER
key.
2.
The CPU version numbers will be displayed on the overlay
of the monitor currently being controlled by the keyboard.
Record number for future reference.
22

GLOSSARY OF TERMS

AUXILIARY - An auxiliary is an additional function of the
remote receiver/driver which permits on/off control of outputs
available to the user. In the Allegiant system, there are four relay
outputs available which can be configured for contact closures, 24
VAC output, or LINE voltage output. They can also be set to
activate either momentarily or in a latching mode.
COMMAND SCRIPT - A unique feature of the Allegiant
system wherein a section of nonvolatile memory can be used to
store specialized factory programming. A program of this type
could then provide custom features which ordinarily would not
be obtainable.
DITHER - A receiver/driver feature which provides added
protection to very low light level cameras by periodically panning
a few degrees left and right automatically.
LOCKOUTS - The ability of a switcher/controller system to
restrict access of operations to certain system functions or features.
The Allegiant system has two modes of lockouts. The first mode
is based on operator priority level. This allows a higher priority
level operator to lockout lower level operators from either viewing
or controlling specific cameras. The second mode involves Master
Control Software setups which can:
1.
Restrict operators/keyboards from viewing/accessing
any camera.
2.
Restrict operators/keyboards from controlling/accessing
any pan/tilt.
3.
Restrict operators from using certain keyboards.
4.
Restrict operators/keyboards from accessing certain monitors.
LOG-ON, LOG-OFF - A selectable feature of the Allegiant
system which requires operators to enter a User number and an
optional password into the keyboard prior to having access to
system operations.
MATRIX SWITCHING - The ability of a switching system to
display any camera on any monitor or the same camera on all
monitors.
PHASED CAMERAS - Properly integrated cameras which give a
roll-free video display when switching from one camera to the
next in a sequential switcher system. Phased cameras are the result
of line-locked cameras being powered from the same AC power,
externally synchronized, or vertically phased adjusted on cameras
equipped with this option.
PRE-POSITION - The ability to store the position of a pan/tilt
and zoom lens so that the same desired scene can be later recalled
automatically. With the Allegiant system, there can be multiple
preset scenes stored for each pan/tilt camera. For each scene, the
pan, tilt, zoom, and focus settings are stored.
SalvoSwitching - The ability of the Allegiant system to switch
multiple video monitors as a synchronized group. Since multiple
monitors switch together, the operator can view multiple scenes
of a specific area or zone before switching to the next area.
55

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