Quantum Composers LDDC 1550 - Manual (Page 16)

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6 GND Ground Signal Ground 0V
7 External
Trigger Input External trigger input 2 to 20VDC
8 GND Ground Signal Ground 0V
9 ThermistorA+ Input NTC/PTC thermistor input(+) 5K to 100K (typ)
10 ThermistorA- Input NTC/PTC thermistor input(-) 5K to 100K (typ)
11 Photodiode
Anode Input Photodiode anode input Photoconductive mode
12 Photodiode
Cathode Input Photodiode cathode input Photoconductive mode
13 ThermistorB+ Input NTC/PTC thermistor input(+) 5K to 100K (typ)
14 ThermistorB- Input NTC/PTC thermistor input(-) 5K to 100K (typ)
15 Analog Input Input Spare analog input 0-5VDC
16 Input #1 Input Spare input #1 0-5VDC
17 Input #2 Input Spare input #2 0-5VDC
18 Input #3 Input Spare input #3 0-5VDC
19 Analog
Output Output Spare analog output 0-10VDC
20 GND Ground Signal Ground 0V
8 Command Set
The LDDC/LSC communicates via a standard USB type B connection. The unit operates in a
serial emulation mode in which the host computer will recognize the LDDC/LSC controller on a
serial port.
Device Command Format
All commands use ASCII characters and are composed of the following fields:
<Prefix><Address><Deliminator><Command String>[Parameters]<Terminator>
Field Description
Prefix
Single semicolon character ";", must precede all commands. The device
will reset its command input buffer when the prefix is received.