D20990.105 Rev A
MC-LS Quick-Start User Manual
Page 3
Remote Operation
Basic use of the remote operation features are
described in this section. Cable lengths must be
limited to a maximum length of 3m.
Analog/Digital Controls
The MC-LS may be operated remotely using a
potentiometer and a switch connected to the
appropriate pins of the IN/OUT port as shown in
Figure 3.
In the default configuration, the MC-LS must first be
turned on using the front panel power switch.
Connecting Pin 1 (Digital Input) to Pin 5 (Common)
will then turn off the LED output.
Serial Control (USB or RS-232)
The MC-LS may be controlled remotely using
simple text commands sent over the USB COM
port or RS-232 serial port. The RS-232 port must
be configured for 9600 baud, 8 data bits, 1 stop bit,
and no parity.
All commands begin with an ampersand (&) and
end with Carriage Return, ASCII code 0x0D
(typically
denoted as ‘\r’).
Basic operating commands:
Please refer to the MC-LS product page of the SCHOTT website for further information about remote operation.
Figure 4: Outline Dimensions
9: +5V Ref
8: Fault Out
7: Not Used
6: Intensity
5: Common
4: Not Used
3: RS232 RX
2: RS232 TX
1: Digital In
Figure 2: IN/OUT Port Pinout
Figure 3: Analog/Digital Control, Typical Application
Pin
Description
1
Digital input, 0-5V, 24V tolerant
2
RS232 Transmit
3
RS232 Receive
4
Not connected
5
Common return for all signals
6
Intensity adjustment, 0-5V analog, 24V tolerant
7
Not connected
8
Fault output, open collector, 30V, 10mA
9
+5V output, 10mA maximum
10kΩ
Pin 9: +5V
Pin 5: Common
Pin 6: Intensity
Intensity
Adjustment
Switch
Pin 1: Digital Input
On/Off
Control
&L1
Enable LED output
&L0
Disable LED output
&I##
Adjust LED intensity
## must be a hexadecimal value between
0 and FF (decimal 0 to 255) where FF is
maximum brightness.
Example:
&I7F
for 50% brightness
