Installation manual

®
DSX Access Systems, Inc. 10731 Rockwall Rd. Dallas TX 75238
800-346-5288 Voice 214 -553-6140 Voice 214-553-6147 Fax
WinDSX FAQ 12/10
 When troubleshooting a reader on a 1042 panel, take the reader to the DSX panel
and terminate it directly to the reader port. If the reader works fine at the panel,
check the field wire for ground faults and shorts. If there are no faults or shorts on
the wire, contact DSX Technical Support. A new processor may be required to fix
the problem.
 All unused inputs on all DSX Intelligent Controllers must be terminated with 1K
resistors except for the DSX-1033 and 1043 Output Controllers.
 Communications loss when relay outputs are cycled (energized or de-energized) is
commonly due to a counter EMF spike. Counter EMF spike is best described as the
collapsing of the magnetic field when a coil is de-energized. When a door strike or
maglock is powered down. The magnetic field collapses and the energy must go
somewhere. It is important to switch positive power to the coil driven device and
keep the ground to that device constant and place an MOV across the connections
from your wire to the device. This allows the MOV to activate when the field spikes
to high and shunt the energy to the ground wire right at the device. Troubleshooting
this is simple. Cycle one or more relays up to 50 times or until the comm. loss
occurs. Then remove the wiring from the relays you are testing and cycle them again
and this time there should be no comm. losses. Try the same test
again once you have wired the device with a constant ground and an MOV. Use
different MOVs for 12 and 24V locks.
 Modem power polarity is important. Proper polarity is to wire the center pin of the
modem’s power connector to positive and the outer shell or outside of the
connector to negative. Always power the modem from the panel.
 For older (non-metal) modems, if the modem answers but does not transmit
information, make sure the DSX panel has tried to dial out. Power up the DSX
panel and the modem at the same time. The DSX panel should try to dial within two
minutes. Once the panel has dialed out once, unplug the data wire going into the
DSX panel. Dial the DSX panel from the Communications Server PC. When the
modem answers, plug the data wire back in. The system should start communicating
properly.
 Newer DSX modems are configured at the factory with the correct init string.
 WinDSX is not compatible with Windows 95, Windows 98 or Windows ME or any
Home Version of OS. WinDSX always requires the professional or business version
of Operating System.
 With WinDSX 3.5 or higher, in Workstation you can toggle between the displaying
of inputs, outputs, and device names and their actual addresses. For example,