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The minimum requirement for maximum current load for a single TSS-2470 Time Delay is 2
amps.
Operating Environment
A TSS-2470 Time Delay is a critical element in broadcast operations. Its installation should
safeguard it from every external event that can interfere with it doing the task expected of it.
360 Systems' engineers have experience with thousands of installations, and have become
aware of a number of environmental factors that can adversely affect performance. Two of
these have already been discussed: power conditioning and inadequate cooling. Two others,
less obvious, should also be considered:
RF Interference by Cell Phones
Many people are not aware that cell phones can attain a very substantial power output, even
when no conversation is taking place. You may have experienced the effect of a cell phone
interfering with a common desk phone placed nearby. Carrying a cell phone into a machine
room where it is in close proximity to broadcast equipment and its associated wiring is unwise.
They are able to interfere with serial control commands, video synchronization, and in some
cases can crash the CPU in equipment.
Some major broadcasters prohibit the carrying of cell phones into certain machine areas. 360
Systems believes that the risk of undesired equipment behavior from their RF fields is very real.
Static Discharge
Static electricity discharge is accepted by most people as an inevitable consequence of living
in a dry area. It is, rather, a result of floor coverings that may enhance appearances, but are
inappropriate for use around critical pieces of broadcast equipment. Static discharge can do
two adverse things:
Discharge into a connector can—and will—destroy internal circuitry of equipment. The
result will always be difficult to diagnose and repair.
Discharge to equipment frames or wiring can crash a CPU and take the station off the air.
The event may seem random or unrelated to static, but it is clearly a catastrophic event—
and one that can repeat indefinitely as humidity varies.
14 TSS-2470 Time Delay
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