Troubleshooting
KTD-405/405A User Manual
42
1036547C / December 2003
6
T
ROUBLESHOOTING
Adhere to all installation guidelines while making connections, including those provided in section
3.1 Installation Guidelines
.
Problem Probable
Cause
Solution
No control of cameras or
DMVRe
Incorrect usage
Make sure that you are in zone mode while trying to
control cameras through a DVMRe.
Incorrect
wiring
Verify
that:
•
The correct type of wiring (STP or UTP) is being
used for the different signals.
•
All wires are in good condition.
•
All cabling and pinout connections are made
according to directions (observing polarity, when
necessary).
•
Equipment is properly terminated.
•
Cables are properly grounded.
See installation guidelines and diagrams in section
3 Installation
.
Incorrect wiring of dome inputs
or incorrect zone addressing
(camera addressing starts at 0
in zone mode)
The address of the camera has to be one less than
the input on the DVMRe. Readdress the cameras or
move the coaxial connections up one input on the
DVMRe.
See
Appendix A. Zone Receiver Site Addressing
.
DVMRe and/or keypad
readiness
Cycle the power on the DVMRe and keypad.
Not connecting to DVMRe
Incorrect programming
If the DMVRe is a triplex, ensure that the hubs are set
to triplex in the zone programming.
Loss of control between
keypads
Keypad positioned incorrectly
on the RS422 control line with
a switcher and data merger
Refer to the keypad, switcher, and data merger
installation instructions and correct wiring along
RS422 control line. With the KTD-405 keypad, the
units should be in line in the following order: keypad,
data merger, and switcher.
Unclear audio on audio
keypads
Incorrectly set jumpers or
faulty KTD-336
Ensure that the attenuation jumpers are set according
to section
5.3.2 Two-Way Audio
.
If a KTD-336 is present, ensure that its relays are not
clicking. If they are, contact Technical Support.
Summary of Contents for KTD-405
Page 1: ...KTD 405 and KTD 405A Controller Keypads ...
Page 60: ......