Sharp IQ-8000 Instrukcja Instalacji Pobierz pdf (Strona 24)

4.0 Wiring Your Readers

4.1 Grounding Your Readers

PCSC has designed its products to withstand most inductive voltage spikes without effect.

However, some noise found in power supplies and door strikes, in addition to static discharge,

may cause the control unit to momentarily shut down, lockup, or in extreme cases, to become

damaged. Unexplained lockups and intermittent system behavior are common symptoms of static

or noise problems. If cycling power will remedy your problem, carefully follow these instructions:

1. Install MOVs (Metal Oxide Varistors, Siemens S10K30 or the equivalent) or reversed biased

diodes (1N4004 - 1N4007) at each Door Strike. When installed, they will suppress most

problem Door Strikes.

2. Readers should be properly earth-grounded for uninterrupted reads. Please be aware that

operation is affected by the amount of static present during certain times of the year.

3. Properly grounding all readers and hardware, in addition to suppressing noise in the

peripheral equipment, should allow for many problem free years of use with PCSC products.

4. In addition, PCSC recommends using a separate filtered, electronically regulated output,

switchable power supply for door strikes.

5. Before installing the reader, please read the following instructions. Damage may occur if this

is disregarded.

6. Installation must meet all local, state, and federal regulations and codes for electrical

installation. If these codes conflict with the installation methods described in this manual,

please call your service representative.

4.2 Properly Routing Your Cables

Do not route data and power cables in the same conduit. Crosstalk and transmission of electrical

noise may result. The IQ-400 PCB’s will become damaged if the power cable grounds to the data

cable.

NOTE: High Voltage and Low Voltage wiring must be routed separately and

maintain a minimum spacing of 0.25 inches.

Page xi of 110 IQ-400 Installation Manual 33-10057-001-C

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Sharp IQ-8000 Instrukcja Instalacji Strona 24