Section 
llI
374. Bemote Pin Connections.  Figure 3-9 
illustrates 
the
3575A 
Option 001 
Interface 
connector as 
viewed from 
the
rear of the instrument.  The connector diagram  and the
table 
within the figure 
provides 
s6mplgls 
programming
infonnation. 
A 
5o-pin rilating connector 
(-hp- 
l25t-0086)+
and a 46- conductor  cable are requircd  for a complete
remote 
prograinmirg 
capability 
(including 
remote control
Iines, 
BCD outputs,  overload outputs, 
data 
flags, 
+ 
5 
V 
and
circuit 
ground).
Model 
35 75A
THE REJI.IOTT:  INPUT 
AND 
OUTPUT I.INES IN THE
3575A 
OPTION OO2 
ARE NOT ISOLATED. 
AI.L INPUT
AND 
OUTPUT LINES ARE REFE:RENCED TO CIRCI]IT
GROUND 
'I)HICH 
IS PERMANENTT,Y 
CONNECTED 
TO
TIIE CHASSIS. 
THE CHASSIS  CONNECTS 
TO EARTI{
GROUND 
THROUGH  THE 
OFF'SET PIN ON THL'
PO 
II 
E R-CO RD 
CON N E CTO 
R.
:6r 
i;
I 
g;s 
i9
) 
-5.5 
4
9-
(
I
6=g
;,
zf,a
Eqi
--
lE9
1<
5  5;n 
=z
lIFtsTT
-Fg
6>g
n
]O
!3
s
a 
9 
2z
ar:JUU==
8r
0
I
0
4E
0
0
I
1=
FRl  FR2
00
01
10
11
J1
Pin No.
Control 
Data
J1
Pin 
No. Control  Data
AoL
BoL
Overload
+ 
Data Flag
- 
Data Flag
Trigger  N4ode
Amplilude
(Ap,85)
Display 
(CF)
Range
(FR1,FR2} 
,.
(
Phase 
Ret.
36 
lAF)
12 
(BF)
I
35 
{FR1)
11 
lFR2)
Function
B/A
A dBV
B dBV
Range
1-'t K
10-100K
100-1M
1K-131\r1
20
44
45
46
48
50
21
33
34
31BA
1 
= 
+; 
0 
= 
- 
{phase 
potarity)
1 
= 
+,0= 
- 
(Amplitude 
Polariry)
1 
= 
Overload 
on Channel A
1 
= 
Ov€rload on Channel 
I
1 
= Overload 
on Channel 
A OR B
1 = 
Data Not Ready;0 
= 
Data R&rdy
1 
= 
Data Ready,0 
= 
Data Not Ready
1=Remote;0=Loc€l
1 
= 
N,4easure 
{> 
1 ms 
rnomentary 
pulse}
I 
= 
Non-Delayed,  0 
= 
Delayed
1 =0.2 
mVto 2 V;0= 2 
mVto 
20 
V
(Channel 
A Voltage 
Range)
1 
=0.2 
mV lo 2 
V;0 
=2 
mV ro 20 V
(Channel 
B 
Volrage Range)
= 
Phase;  0 
= Amplitude  B
REMOIE LOG  IC:
.' 
OUTPUTS: True 
11l=0Vto+0.4V,12mAmaximumtoad
False 
(O) 
= 
+ 
23 V to 
+ 
5 V,0.4  mA maximum 
toad
INPUTS: True 
(l 
) 
= 
ground 
or 
,0.5 
V to 
+ 
O.4 V, 
1 .6 
mA maximum
False 
(0) 
= open or 
+ 
2.4 V to 
+ 
5 
V 
{5.6 
K 
pullup 
resistance)
Figure 
3-9. Remote Pin 
Connections.
' 
Cinch  No. 57-30500'375
** 
Option 
003 instruments  use high-true 
logic {or 
BCD ourputs.
3-12