7071
General Purpose Matrix Card
8×12
The Model 7071 General Purpose Matrix Card is
an 8×12 configuration that switches High, Low,
and Guard at each of the 96 relay crosspoints.
The eight rows are connected automatically to
the general purpose analog backplane when the
matrix card is installed into the 707A and 708A
mainframe. This allows for easy expansion in 12
column increments and eliminates the require-
ment for wiring between cards.
The matrix card will handle voltages up to
200V and currents up to 0.5A switched or 1A
unswitched. A 5µV contact potential assures that
the switch does not adversely affect low voltage
sensitivity. The 3dB signal bandwidth is 5MHz.
Guard inputs improve isolation between signals
and assure <100pA offset currents into any elec-
trical path.
ACCESSORIES AVAIL ABLE
7078-CIT
7078-HCT
7078-KIT
7078-MTC-5
7078-MTC-20
7078-MTR
Contact Insertion and Extraction Tools
Hand Crimping Tool
Connector Kit
Mass Terminated Cable Assembly, 1.5m (5 ft)
Mass Terminated Cable Assembly, 6m (20 ft)
Bulkhead Mount Receptacle with Contacts
MATRIX CONFIGURATION:
8 rows by 12 columns.
CROSSPOINT CONFIGURATION:
3-pole Form A (HI, LO,
GUARD).
CONNECTOR TYPE:
Quick disconnect using 38-pin connectors
or screw terminals.
MAXIMUM SIGNAL LEVEL:
200V, 1A carry/0.5A switched, 10VA
peak (resistive load).
COMMON MODE VOLTAGE:
200V maximum between any 2
pins or chassis.
CONTACT LIFE: Cold Switching:
10
8
closures.
At Maximum Signal Level:
10
5
closures.
PATH RESISTANCE (per conductor):
<0.6Ω initial, <1.5Ω at
end of contact life.
CONTACT POTENTIAL:
<5µV per crosspoint (HI to LO <1
minute after actuation).
OFFSET CURRENT:
<100pA.
ISOLATION: Path:
>10
10
Ω,
<10pF.
Differential:
10
9
Ω,
45pF
nominal.
Common Mode:
10
9
Ω,
165pF nominal.
CROSSTALK:
<–50dB at 1MHz, 50Ω load.
INSERTION LOSS (1MHz, 50Ω source, 50Ω load):
0.1dB
typical.
3dB BANDWIDTH (50Ω load):
5MHz typical.
RELAY SETTLING TIME:
<3ms.
EMC:
Conforms to European Union Directive 89/336/EEC.
SAFETY:
Conforms to European Union Directive 73/23/
EEC (meets EN61010-1/IEC 1010).
ENVIRONMENT: Operating:
0° to 50°C, up to 35°C at 70% R.H.
Storage:
–25 to +65°C.
Use with Models 707A and 708A switching matrix mainframes
•
96 three-pole, Form A relay
crosspoints
•
High, Low, and Guard switched
•
<5µV contact potential per
crosspoint
•
Signals to 200V and 1A
•
Compatible with Models 707A
and 708A
Ordering Information
7071
8×12 General Purpose
Matrix Card
SERVICES AVAILABLE
7071-3Y-EW
1-year factory warranty extended to 3 years
from date of shipment
A
B
C
D
HI
LO
GUARD
HI
LO
GU
AR
3
3
D
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Rows
E
F
G
H
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Backplane
Connections
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
1
2
3
4
5
6
7
Columns
8
9
10
11
12
1.888.KEITHLEY
(U.S. only)
w w w.keithley.com
A
G R E A T E R
M E A S U R E
O F
C O N F I D E N C E
SWITCHING AND CONTROL
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Use with Models 707A and 708A switching matrix mainframes
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