5
/
9
5. Camera I / O
5-1 Power source
The camera is powered through 15-pin connector.
Though ripple-free and stable power source is preferable, the switching supply is also employable. In general,
ripple voltage of a stabilized power source
is approx.35mV, and approx.120mV for a switching supply. As
voltage ripple is added to video signals, S/N ratio degrades when ripple voltage is too large.
When two or more line scanners are connected to a single power source, be sure to keep cables from varying
extremely in length from others. When cable length varies greatly depending installation location of line
scanner and power source, dispersively set up multiple small-capacity power sources.
5-2 I/O connector
●
POWER connector
The pin arrangement of the POWER connector and the signals assigned to those pins are shown in the
following table:
●
DIGITAL OUT connector
The pin number of 36-pin connector and the I/O signals assigned to those pins are shown in the
following table:
●
SYNC connector
···
Monitoring connector for internal SYNC.
Possible to monitor it with oscilloscope.
Signal level is TTL level.
Pin No.
Signal name
Pin No.
Signal name
1
SHIELD
9
NC
2
+12V
10
GND
3
GND
11
NC
4
NC
12
SYNC
IN
5
SYNC+ IN
13
CLOCK
IN
6
CLOCK+ IN
14
SYNC
OUT
7
SYNC+ OUT
15
CLOCK
OUT
8
CLOCK+ OUT
Pin No.
Signal name
I/O
Pin No.
Signal name
I/O
1
CLK+
Out
2
Clk-
Out
3
SYNC+
Out
4
SYNC-
Out
5
6
7
GND
8
GND
9
EX CLK+
In
10
EX CLK-
In
11
EX SYNC+
In
12
EX SYNC-
In
13
14
15
DO
0
+
Out
16
DO
0
-
Out
17
DO
1
+
Out
18
DO
1
-
Out
19
DO
2
+
Out
20
DO
2
-
Out
21
DO
3
+
Out
22
DO
3
-
Out
23
DO
4
+
Out
24
DO
4
-
Out
25
DO
5
+
Out
26
DO
5
-
Out
27
DO
6
+
Out
28
DO
6
-
Out
29
DO
7
+
Out
30
DO
7
-
Out
31
DO
8
+
Out
32
DO
8
-
Out
33
DO
9
+
Out
34
DO
9
-
Out
35
GND
36
GND
(Pin arrangement viewed from
the outside of the camera)
1
1 5
8
9
CLK
········
Pixel clock
SYNC
······
SYNC signal
DO
0
~
DO
9
···
Digital video output