M
ODEL
7021 S
PECIFICATIONS
ANALOG MULTIPLEXER SPECIFICATIONS
MULTPLEXER CONFIGURATION:
Independent 1
×
12 and 1
×
18
multiplex banks. Adjacent banks can be connected together.
Jumpers can be removed to isolate any bank from the backplane.
CONTACT CONFIGURATION:
2-pole Form A (HI, LO).
MAXIMUM SIGNAL:
110V DC, 110V rms, 155V peak between any
two inputs or chassis, 1A switched, 30VA (resistive load).
CONTACT LIFE: Cold Switching:
10
8
closures.
Maximum Signal Levels:
10
5
closures.
CHANNEL RESISTANCE (per conductor):
<1.25
Ω
.
CONTACT POTENTIAL:
<3µV per channel contact pair
<9µV per single contact
OFFSET CURRENT:
<100pA.
ACTUATION TIME:
<3ms.
ISOLATION:
1
Bank:
>10
9
Ω
, <25pF.
Channel to Channel:
>10
9
Ω
, <50pF.
Differential:
Configured as 1
×
12: >10
9
Ω
, <100pF.
Configured as 1
×
18: >10
9
Ω
, <150pF.
Configured as 1
×
30: >10
9
Ω
, <200pF.
Common Mode:
Configured as 1
×
12: >10
9
Ω
, <200pF.
Configured as 1
×
18: >10
9
Ω
, <250pF.
Configured as 1
×
30: >10
9
Ω
, <350pF.
CROSSTALK
1
(1MHz, 50
Ω
Load):
<–40dB.
INSERTION LOSS
1
(50
Ω
Source, 50
Ω
Load):
<0.25dB below 1MHz,
<3dB below 10MHz.
RELAY DRIVE CURRENT (per relay):
16mA.
1
Specifications apply with no more than one channel closed.
HI
LO
Bank A
12 Channels
HI
LO
HI
Output
LO
J
J
HI
LO
Backplane
HI
LO
Bank B
18 Channels
HI
LO
HI
Output
LO
J
J
HI
LO
Backplane
J
J
5V
Output
V
EXT
GND
Output Channel 1 of 10
5V
Input
GND
Input Channel 1 of 10
10K
10K
10K
Multiplexer Configuration
Digital I/O Configuration
DIGITAL I/O SPECIFICATIONS
DIGITAL I/O CAPABILITY:
10 independent inputs.
10 independent outputs.
OUTPUT:
Configuration:
10 open collector drivers with factory installed
10k
Ω
pull-up resistors. Each driver has an internal flyback diode.
Pull-Up Voltage:
5V internally supplied, external connection pro-
vided for user supplied voltage up to 42V max. Outputs short cir-
cuit protected up to 25V.
Maximum Sink Current: Per Channel:
250mA.
Per Card:
1A.
Logic:
Hardware user configurable for negative or positive true
logic levels.
INPUT:
Configuration:
10 inputs with internal 10k
Ω
pull-up resistors
provided. Input resistors can be set for pull-up or pull-down
configuration.
MAXIMUM VOLTAGE LEVEL:
42V peak.
LOGIC:
Positive true.
GENERAL
CONNECTOR TYPE:
96-pin male DIN connector.
ENVIRONMENT: Operating:
0° to 50°C, up to 35°C <80% RH.
Storage:
–25° to 65°C.
EMC:
Conforms with European Union Directive 89/336/EEC
EN 55011, EN 50082-1, EN 61000-3-2 and 61000-3-3, FCC part 15
class B.
SAFETY:
Conforms with European Union Directive 73/23/EEC
EN 61010-1, UL 3111-1.
Specifications subject to change without notice.
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