Control of the AOS Buttons via the VAX

    The front panel buttons of the AOS's are controlled via computer by bits 
of 2 CAMAC parallel I/O cards.  When controlling a button, one should pulse 
the bit by sending a 1 then a 0 value.  The buttons on AOSA and AOSB are 
controlled by the output card in slot 17 of the AOS crate (#4).  AOSC is 
controlled by the output card in slot 18.  

    Send the output card with the following hexadecimal values then a zero
value to do the following: 

    AOSA DARK On	20
    AOSA DARK Off	10
    AOSA COMB On	 4
    AOSA COMB Off	 8
    AOSB DARK On      8000
    AOSB DARK Off     4000
    AOSB COMB On      1000
    AOSB COMB Off     2000

The codes for AOSC are the same as for AOSA but use the output card in slot 18
instead of slot 17.

Ordinarily, these bits are toggled by the BEORGA program.  Alternatively,
one can set them manually with the CSTEP program (alias CS & CSD).  The 
follow examples show how one could use this method.  (The with T at the left
are commands typed, the lines with R are the responses to those commands.  T 
on a blank line means just strike <Return>.) 

    Turn AOSA dark on:

T		cs
R		ENTER C(01), N(01), A(00), F(00)
T		4 17 0 16
R		ENTER DATA (HEX)(000000):
T		20
R		ENTER C(04), N(17), A(00), F(16)
T
R		ENTER DATA (HEX)(000020):
T		0
R		ENTER C(04), N(17), A(00), F(16)

    Now turn AOSA dark off:

T
R		ENTER DATA (HEX)(000000):
T		10
R		ENTER C(04), N(17), A(00), F(16)
T
R		ENTER DATA (HEX)(000010):
T		0
R		ENTER C(04), N(17), A(00), F(16)

    Next turn AOSC dark on:

T		4 18 0 16
R		ENTER DATA (HEX)(000000):
T		20
R		ENTER C(04), N(18), A(00), F(16)
T
R		ENTER DATA (HEX)(000020):
T		0
R		ENTER C(04), N(18), A(00), F(16)