MAN-70009, REV A
Page
24
of
35
6.3.2 Ethernet
Wiring
Connect the RJ-45 port of the amplifier to a computer cable on 100BaseT UTP Cat5 cable.
PMI uses Lantronix XPort device as an interface to the remote Ethernet. Using a driver provided
by Lantronix which is available on
http://www.lantronix.com/device-networking/utilities-
tools/device-installer.html
and download Device Installer from there. An IP Address can be read
by using Device Installer only when the amplifier and PC are placed in network (on DHCP
Server).
IEEE-488.2 INTERFACE
6.3.3 INTRODUCTION
The Power Amplifiers can be operated remotely from a personal computer having an IEEE-488 interface. This interface
allows the amplifier to be remotely controlled over the General Purpose Interface Bus (GPIB) by sending commands to the
amplifier. Additionally, amplifier status and forward and reverse power readings may be read over the GPIB. All functions
can be controlled by coded messages sent over the interface bus via the 24-pin socket connector on the rear panel of the unit.
IEEE-488.2 Standard is implemented, which defines the protocols and syntax of commands. The GPIB command codes for
the IFI Amplifier series are discussed on subsequent pages and, for ease of identification; the command codes are identified
within the text by bold capital characters. For full information on the IEEE protocols and syntax the IEEE-488.2 Standard
should be consulted.
6.3.3.1 GPIB ADDRESS
The GPIB address of the amplifier is set to 5.
In order for the amplifier to operate correctly, the following must be done.
Add a carriage return and a line feed to
terminate the command. Please note that the first read is the command and the second read is the
response.
1. Set "Terminate reads on
EOS
" to
yes
.
2. Set
"Set
EOI
with
EOS
on Writes" to
yes
.
3. Set
the
EOS
byte to
0Ah
(an ASCII line feed character).
4. Set
"Send
EOI
at end of writes" to
yes
.
5. Set
"Enable
repeat addressing
" to
yes
at the board level.
6. When sending command strings to the amplifier, a carriage return character (
0Dh
) followed by a line feed character
(
0Ah
), must always be appended to the command, otherwise the amplifier will wait indefinitely for the
CR-LF
combination. If this happens the unit will have to be powered off and back on to reset this condition. (The interface
device will automatically assert the
EOI
line during the
LF
if items 2 - 4, above, are set to yes in the IBCONF program.)
