I got an Ascor Series 8000 Coax switch unit.
It responds to *IDN? and *ESR? queries over GPIB, but I can't make it do anything else.
I found a manual, but none of the commands described in it work. ![Sad :(](https://www.eevblog.com/forum/Smileys/default/sad.gif)
Does anyone have more info on these?
I got my answer from Astronics, (they bought the Ascor line from Gigatronics) with the following information for my apparently older version of this series.
The interface is VERY easy. The GPIB commands simply set some parallel port bits for the relay drivers.
I'll copy it here in case someone else needs this info:
SWITCHES POSITIONS SCPI COMMANDS
=========================================================================
ALL OPEN SOURCE:DATA:PORT1 0
POSITION 1 SOURCE:DATA:PORT1 1
S1 POSITION 2 SOURCE:DATA:PORT1 2
POSITION 3 SOURCE:DATA:PORT1 3
POSITION 4 SOURCE:DATA:PORT1 4
S2 N/C (LEFT-CENTER) SOURCE:DATA:PORT4 0
N/O (RIGHT-CENTER)SOURCE:DATA:PORT4 1
S4 N/C (LEFT-CENTER) SOURCE:DATA:PORT4 0
N/O (RIGHT-CENTER)SOURCE:DATA:PORT4 2
S5 N/C (LEFT-CENTER) SOURCE:DATA:PORT4 0
N/O (RIGHT-CENTER)SOURCE:DATA:PORT4 4
S7 N/C (LEFT-CENTER) SOURCE:DATA:PORT4 0
N/O (RIGHT-CENTER)SOURCE:DATA:PORT4 8
ALL OPEN SOURCE:DATA:PORT1 0
POSITION 1 SOURCE:DATA:PORT1 16
S8 POSITION 2 SOURCE:DATA:PORT1 32
POSITION 3 SOURCE:DATA:PORT1 48
POSITION 4 SOURCE:DATA:PORT1 64
Programming Notes:
------------------
A care has to be taken when a switch is connected or disconnected
that shares a port number with another switch. When switches share
a port, programming one switch to connect or disconnect may also
disconnect the other switch or switches on the same port.
For instance, if you have a switch attached to J4 is in Pos 1 and want
to also close a switch attached to J3 to Pos 2, you will issue the
following SCPI command:
SOURCE:DATA:PORT1 33
32 for J3 Pos 2 on port 1
+ 1 for J4 Pos 1 on port 1
----
33 program value
Similarly if you want to just open J3 Pos 2 but keep the connection
to J4 Pos 1, issue the following SCPI command:
SOURCE:DATA:PORT1 1
0 for J3 All Open
+ 1 for J4 Pos 1 on port 1
----
1 program value
Not all switch positions are available for a particular switch.
For 1x4 switches use positions 1 through 4 only.