Getting Started
Environmental Requirements
The ambient temperature must be maintained at 0˚ to +65˚ Celsius for
proper operation and to avoid possible damage to the ZT 8809A (the
ZT 88CT08A and ZT 88CT09A allow for a lower power requirement
and wider temperature range, detailed in Chapter 13).
Relative
humidity should be less than 95% at 40˚ C, non-condensing.
Important Note: It is critical to the ZT 8809A RS-232-C
serial interface that Auxiliary Ground (AUXGND) on the
STD bus be connected at the backplane to the +5 V ground
reference (GND). Ziatech backplanes are shipped in this
configuration, and the ZT 8809A provides Jumper W63 for
this purpose. Jumper W63 is installed at the factory prior to
shipment.
Vertical mounting is recommended in convective cooling systems not
using a fan. Horizontal mounting is not recommended unless forced
air cooling is provided at a rate of 30 cubic feet per minute passing
over the surface of the board.
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