SPECIFICATIONS
Channel Configuration:
Signal Path Low Input:
Relay Configuration:
Relay Manufacturer:
Contacts:
Power:
Voltage:
Current:
Resistance:
32 channels, single line, one signal path closed at any
time.
Switch selectable between 53A-334 Signal Ground and
user supplied common external reference.
16 dry-reed relays, 3-pole, form A.
2 additional dry-reed, 3-pole, form A relays to select
between poles 1 and 2 o f the f i r s t 16 relays. T h e third
pole of all relays is used f o r read-back and self-testing.
Coto model 3600-0031 or equivalent.
10 W, maximum resistive.
200 V dc (see Appendix C).
40 V Peak ac.
0.5 A, maximum switching.
Initial - less than 100 milliohms.
End o f reed l i f e - less than 1 ohm.
Reed Life:
A
t
least 10' operations/channel at a rated load of 10 W.
Duty:
C
o
n
t
i
n
u
o
u
s
.
Dielectric Strength:
2
5
0
V
(between contacts).
Scanning Ratq:
R
a
n
d
o
m
channels selected at up to 350 channels per
second.
Signal Path Specifications
NOTE:
T h e s e specifications include the effects of the card cage backplane; they
are valid at the analog output connector on the backplane:
Single-Line Thermal Offset: L e s s than 75 µV.
Initial Signal Path Resistance: L e s s than 600 milliohms.
Final Signal Path Resistance: L e s s than 1.4 ohms.
(end o f reed l i f e )
Insulation Resistance: G r e a t e r than 10 gigaohms between all insulated parts.
334 - 6