20
Slave serial link
cable with RJ-45
shielded
connector (black
plug)
GTL-262
RS-485 slave serial link pin assignment
8 Pin Connector (IN)
8 Pin Connector (OUT)
Pin No.
Name
Pin No.
Name
Housing
Shield
Housing
Shield
1
SG
1
SG
6
TXD-
6
TXD-
3
TXD+
3
TXD+
5
RXD-
5
RXD-
4
RXD+
4
RXD+
Master serial link
cable with RJ-45
shielded
connector (gray
plug)
GTL-261
RS-485 master serial link pin assignment
8 Pin Connector (IN)
8 Pin Connector (OUT)
Pin No.
Name
Pin No.
Name
Housing
Shield
Housing
Shield
1
SG
1
SG
6
TXD-
5
RXD-
3
TXD+
4
RXD+
5
RXD-
6
TXD-
4
RXD+
3
TXD+
2-5-1-2. Multi-Drop mode Function Check
Functionality
check
Invoke a terminal application such as Realterm.
To check the COM port No, see the Device Manager in the
PC.
When using the Multi-Drop mode, the entire SCPI
command list developed for the PFR-100 can be used.
Each unit can be individually controlled after a slave unit
has been selected. For this function check, we will assume
that the master unit is assigned to address 0, while a slave
is assigned address 5.
Run this query command via the terminal application after
the instruments have been configured for multi-unit control
with Multi-Drop mode. See page 18.
:INST:SEL 0
←
Press ENTER after typing.
*IDN?
←
Press ENTER after typing.
TEXIO,PFR-100L50,TW1234567,01.01.12345678
:INST:SEL 5
←
Press ENTER after typing.
*IDN?
←
Press ENTER after typing.
TEXIO,PFR-100L50,TW7654321,01.01.12345678
:INST:SEL 6
←
Press ENTER after typing.
