Pioneer PDP 502MX Handbuch - Seite 9
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5.6 Combination Connection
This is useful for controlling/adjusting a number of sets from a single PC.
By carrying out combination connection and then assigning IDs to each of the sets, it becomes possible to control/
adjust a number of sets either all at once or individually.
5.6.1 Connections
Carry out connections as shown below. You can then control/adjust the units from the PC.
PC
NOTE
You may use either combination input or control port (RS-232C connector), but not both at once. Using both
simultaneously will result in malfunction or system breakdown.
Don't connect combination inputs to other combination inputs, or combination outputs to other combination outputs.
It may cause a trouble.
General purpose Mini Din 6-pin (straight) cables may be used as combination cables.
• The connections for remote control signals are as shown below.
• The order of precedence for remote control signals is as follows:
1 Control IN terminal (SR IN) > 2 Combination IN terminal > 3 Remote control infra-red receiver
Example: If you connect a cable to the Control IN terminal (SR IN) then the built-in Control IN terminal (SR IN) switch
makes it impossible to receive remote control signals via either the remote control infra-red receiver (??) or
the Combination IN terminal.
(NOTE)
RS-232C signals can still be received via the Combination IN terminal.
3 Remote control
infra-red receiver
2 Combination
NOTE 1) In order to output remote control signals or RS-232C signals from the Combination OUT terminal, it is necessary
to assign an ID. For more details see "5.5.3 ID Assignment".
NOTE 2) With the Combination IN/OUT terminals, remote control signals and RS-232C signals are inputted/outputted
simultaneously. For more details see "2.3 Controls and Connectors".
1st unit
IN
OUT
IN
OUT
RS - 232C
CONBINATION
CONTROL
OUT
Combination cable
Remote control signal
block diagram
1 Control IN
IN terminal
terminal
(SR IN)
2nd unit
IN
OUT
IN
OUT
RS - 232C
CONBINATION
CONTROL
IN
OUT
Combination cable
Control OUT
Combination
terminal
OUT terminal
(SR OUT)
Combination Connection
3rd unit
IN
OUT
IN
OUT
RS - 232C
CONBINATION
CONTROL
IN
To the PDP's built-in
microcomputer
OPEN when ID has not
been set (see NOTE 1)
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