Getting Started
SYSTEM REQUIREMENTS
Physical Requirements
The ZT 8809A is designed to be used in an STD bus system. It is
therefore physically and electrically compatible with the STD-80 bus
standard. It should normally be mounted in one slot of an STD bus
card cage. If the zSBC 337 module containing the 8087 Numeric Data
Processor is mounted on the board, it occupies two slots of the card
cage unless the end slot is used. Refer to the board outline in
Appendix B for board dimensions with and without the zSBC 337
module attached.
Power Requirements
Power requirements for the ZT 8808A and ZT 8809A are +5 VDC at
1.6 A maximum, 0.8 A typical.
For serial communications, the
requirements are +12 VDC at 24 mA maximum and -12 VDC at
24 mA maximum. For proper operation of the ZT 8809A, +12 V and
-12 V must be supplied even though the serial ports may not be in use.
WARNING!
If you are using an emulator in place of the microprocessor
on the ZT 8809A, the emulator should be powered down or
disconnected before the CPU is powered down.
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