NI 9425 Operating Instructions and Specifications
12
ni.com
I/O protection
Inp
u
t voltage
8 channels ............................ 60 VDC max
32 channels .......................... 30 VDC max
Reverse-biased voltage
8 channels ............................ –60 VDC max
32 channels .......................... –30 VDC max
Hold time
1
......................................... 0
μ
s min
Set
u
p time
2
........................................ 1
μ
s min
Update/transfer time
3
cRIO-9151 R Series
Expansion chassis....................... 8
μ
s max
All other chassis ......................... 7
μ
s max
1
Hold time
is the amo
u
nt of time inp
u
t signals m
u
st be stable after initiating a read
from the mod
u
le.
2
Setup time
is the amo
u
nt of time inp
u
t signals m
u
st be stable before reading from the
mod
u
le.
3
The
u
pdate/transfer time is valid when the mod
u
le is
u
sed in a CompactRIO system.
When
u
sed in other systems, driver software and system latencies impact this time.
