User`s guide

27
EXTENDED ET Connector (41 pins)
N, P Outputs ECT2 Generator / 100 Ω ECT2 eddy current generator outputs through 100 Ω
R, S Outputs ECT2 Generator / 100 Ω ECT2 eddy current generator outputs through 100 Ω
(if external MUX is not connected)
R Output MUX 4 Multiplexing signal output (bit 4)
S Output MUX 5 Multiplexing signal output (bit 5)
TOutputMUX 0

CLK –
Multiplexing signal output (bit 0) (if pin J is not
grounded)
Clock – signal (if pin J is grounded)
U Output MUX 1

CLK +
Multiplexing signal output (bit 1) (if pin J is not
grounded)
Clock + signal (if pin J is grounded)
VOutputMUX 2

+12.5 V supply
Multiplexing signal output (bit 2) (if pin J is not
grounded)
+12.5 V supply voltage (if pin J is grounded)
W Output MUX 3

–12.5 V supply
Multiplexing signal output (bit 3) (if pin J is not
grounded)
–12.5 V supply voltage (if pin J is grounded)
X – GND Power supply ground to the instrument and casing
Y Output –15 V supply –15 V supply voltage (1.0 A max.)
Z Input In1 + input Positive input of input amplifier 1
a Input In1 – input Negative input of input amplifier 1
b Input In2 + input Positive input of input amplifier 2
c Input In2 – input Negative input of input amplifier 2
d Input In3 + input Positive input of input amplifier 3
e Input In3 – input Negative input of input amplifier 3
f Input In4 + input Positive input of input amplifier 4
g Input In4 – input Negative input of input amplifier 4
h – GND Power supply ground to the instrument and casing
Table 1 EDDY CURRENT connector pinout (continued)
Pin I/O Signal Description