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12
RS-232C Command List
XC-555/P
12 pin Connector
1 GND
2 +12 V
3 GND
4 VBS/Y out
5 GND
6– /HD in
7 VS/VD in
8 GND
9– /C out
10 TXD (RS-232C)
11 RXD (RS-232C)
12 GND
PC
D-SUB 9P
CD 1
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
RI 9
5 Push the back panel and the CCD head block back
into their previous positions, and tighten the
Philips screws ( 7) to a torque of 0.18 N•m.
Connections
Communication
Specifications
This unit utilizes an RS-232C-compliant, flow
controlled, synchronous serial interface.
Because the RS-232C setting is set to OFF when the
unit is shipped from the factory, you must change the
setting of the internal DIP switches to utilizes the RS-
232C function. (Before changing the settings make
absolutely sure that the power to the unit is turned off.
(See “Setting the RS-232C Switches” (page 11).))
The parameters are as follows.
Communication speed : 9600 bps
Data length : 8 bit
Stop bit : 1 bit
Parity : None
This is a no-flow-control, no-handshake protocol, each
bite is transmitted from the LSB line.
Characters that can be transmitted are ASCII codes
30h to 39h, 41h to 5Ah (Alphabetic capital letters A to
Z, Arabic numerals 0 to 9), a space (20h), and a
Carriage Return (0Dh).
Thus the commands used to control the camera are
made up of the character set specified above, and each
command must end with a Carriage Return character
(0Dh).
Because this is a no-flow-control protocol, to prevent
communication overflows, if the host side sends one
byte, before sending the next byte, insert a 1 ms stop
period.