Chapter Two • CLD-V2800 Level II

4) Connection to a Computer

The player can be connected to a computer via the RS-232C port as shown below. It is connected with three lines: One line transmits commands from the computer to the player to control operations. Another line transmits status responses from the player to the computer. The third line is Ground.

The player does not use hardware handshaking. Therefore, control or “handshaking” lines other than TxD and RxD are not required, even if the computer provides them.

Some computers, however, may require hardware handshaking. The player makes a line available to be used, as needed, by the computer. The DTR signal is always pulled high internally, within the CLD-V2800.

The player is connected to the RS-232C port of the computer as follows:

 

 

TxD

 

Command

 

RxD

 

 

 

Status

 

 

RxD

 

TxD

 

 

 

Computer

 

 

 

CLD-V2800

 

 

 

Ground

 

 

 

 

 

 

 

 

 

 

GND

 

GND

 

 

 

 

 

 

 

CTS

 

 

 

DTR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2-F

See Appendix B for specific interface cable pin configurations to use to connect various computers to the CLD-V2800.

CLD-V2800 Level III User’s Manual TP 120 v. 1.0 • 10/95

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