1. Introduction
Functional Blocks Below is a functional block diagram of the ZT 4807. The topics following the diagram
provide overviews of the ZT 4807's functional blocks.
Functional Block Diagram
ZT 4807
SPEAKER
J5
VIDEO
(J19)
USB 0
(J13)
USB 1
(J14)
COM2
(J17) COM1
(J16)
(J10) (J11-J12)
(J6)
KEYBOARD
& MOUSE
(J15)
FLOPPY
EIDE
(CompactFlash and
Secondary Channels)
POWER OUT
(J9)
Rear-Panel I/O
POWER IN
(J8)
Rear-Panel I/O
The ZT 4807 transitions signals from a pin-compatible processor board (such as the
ZT 5504 from Intel) through backplane connectors J5.
PS/2 Keyboard/Mouse Port
The ZT 4807 provides rear-panel access to the host processor board keyboard/mouse
interface. The host processor board PS/2 style mouse/keyboard controller is connected via
RPIO connector J5 to 6-pin DINN connector J15, labeled KY/MS on the ZT 4807 Connector
Plate. Using J15 for both the PS/2 keyboard and PS/2 mouse connection requires use of a
PC keyboard/mouse ‘Y’ splitter cable. See the “Cables” topic in Appendix A for cabling
recommendations.
Note: The keyboard and mouse do not function properly if devices are connected to both the Host
processor board and the ZT 4807.
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