THORLABS PM100 User Manual

4.1 Connecting a Computer
PM100 / page 31
4 Computer Interface
4.1 Connecting a Computer
This device provides an interface which is similar to the IEEE1174 “Serial Interface
for Programmable Instrumentation” standard which provides a way to emulate the
common IEEE488 interface over a serial link using SCPI-style commands. Refer to
the SCPI specification for further information.
The device is considered to be a Data Terminal Equipment (DTE). To connect it with
a control PC use the 9-pole null-modem cable that is provided with the optical power
meter system. Plug one end to the DB9 socket in the bottom plate of the PM100, the
other end to a free COM port of the PC.
The serial null mode cable wiring is shown in the following table; the numbers
indicate the pins of the DB9 connectors.
Set up your control PC to meet the following communication setup:
Line setup: 2400 .. 115200-8N1-RFR/CTS
(8 data bits, 1 stop bit, no parity)
Program message end character: <LF>
(Line Feed, 0A
hex
)
Response message end characters: <CR><LF>
(Carriage Return, 0D
hex;
Line Feed, 0A
hex
)
The CD Rom delivered with the instrument contains drivers and applications for the
PM100. Please refer also to our website www.thorlabs.com for the latest software
version.
Receive Data
Ready for receiving
Clear to send
Signal Ground
Data terminal ready
Receiver Line Signal Detection
Data set ready
2 RXD
3 TXD
7 RFR
8 CTS
5 GND
4 DTR
1 RLSD
6 DSR
9 RI Ring Indicator
2 RXD
3 TXD
7 RFR
8 CTS
5 GND
4 DTR
1 RLSD
6 DSR
9 RI

THORLABS PM100 Specifications

General

Brand	THORLABS
Model	PM100
Category	Measuring Instruments
Language	English