Datasheet

TEK.COM 29
DAQ6510 Data Acquisition and Logging, Multimeter System
The 7701 plug-in module offers 32 channels of 2-pole or 16 channels
of 4-pole multiplexer switching. Its 32 channels can be configured
for common-side 4-wire ohms. They can also be configured as two
independent banks of multiplexers. It is ideal for RTD or thermistor
temperature applications.
Key Features
• Configurable for 32 channels of differential measurements, with
up to 16 channels of 4-pole measurements
• Two female D-shell connectors are standard for secure hook-up
and quick teardown
• 150 V, 1 A capacity for voltage channels; 60 W, 125 VA
• Relay closures stored in onboard memory
• Screw terminal jumpers allow user-configurable DMM
connections
Series 7700 Plug-In Switch Modules
Channel 1
HI
LO
Channel 16
HI
LO
(Channels 2–15)
Channel 17
HI
LO
Channel 32
HI
LO
(Channels 18–31)
Backplane
Isolation
HI
LO
Backplane
Isolation
HI
LO
DMM Input
Channel 33
2-Pole (Open)
4-Pole (Closed)
(see Note)
To
Internal
DMM
NOTE: Channels 33–35 in this schematic refer to the
designationsused for control and not actual
available channels.
For more information, refer to the ROUTE:MULT
command section in the Instrument User’s Manual.
Channel 35
(see Note)
Channel 34
(see Note)
Multiplexer 1
HI
LO
Screw
Terminals
Screw
Terminals
The 7701 is rated for low-voltage applications.
When connecting the 7701 to the internal DMM via
the screw terminals, all other modules in the
mainframe must be derated to 150 VDC or
150V rms (212 V peak) for AC waveforms.
HI
LO
HI
LO
DMM Sense
Multiplexer 2
HI
LO
External
Wiring
Access
User
Congurable
Screw
Terminals
7701 32-channel Differential Multiplexer Module
Datasheet
Specifications
Capabilities
Channels 1–32 Multiplex one of 32 2-pole or one of 16 4-pole signals into
DMM. Configuration supports dual 1×16 independent multi-
plexers.
Inputs
Maximum Signal Level
Any channel to Any Channel (1–32): 150 V DC or 150 Vrms
(212 V peak) for AC waveforms, 1 A switched, 60 W, 125 VA
maximum.
Contact Life (typ): >10
5
operations at max. signal level.
>10
8
operations no load
1
.
1. Minimum signal level 10 mV, 10 μA.
Contact Resistance <1 Ω any path and additional 1 Ω at end of contact life.
Contact Potential <6 μV per contact pair.
Offset Current <100 pA.
Connector Type 50-pin female D-shell, Channels 1–24.
25-pin female D-shell, Channels 25–32.
Supplied with male IDC ribbon cable connectors.
Isolation Between Any Two Terminals
>10
9
Ω, <200 pF.
Isolation Between Any Terminal and Earth
>10
9
Ω, <400 pF.
Cross Talk (1 MHz, 50 Ω Load)
<–35 dB.
Insertion Loss (50 Ω Source, 50 Ω Load)
<0.35 dB below 1 MHz. <3 dB below 2 MHz.
Common Mode Voltage
300 VDC or 300 Vrms (425 V peak) for AC waveforms
between any terminal and chassis.
General
32 Channels 32 channels of 2-pole relay input. All channels configur a ble to
4-pole.
Relay Type Latching electromechanical.
Actuation Time <3 ms.
DMM Connections Screw terminals provide internal DMM connections to
channels 34 and 35 and connections to external wiring
access.
Environmental Operating Environment: Specified for 0° to 50°C. Specified
to 80% R.H. at 35°C.
Storage Environment: –25° to 65°C.
EMC: Conforms to European Union EMC Directive.
Safety: Conforms to European Union Low Voltage Directive
RoHS: Conforms to European Union RoHS Directive
Warranty: 1 year
Weight <0.52 kg (1.16 lb).
Supplied Accessories
7709-306A 50-pin D-Sub Male IDC Connector Kit
7709 -307A 25-pin D-Sub Male IDC Connector Kit
J-15 Jumper Wires, quantity 4
Available Accessories
7789 50-pin male, 25-pin male D-shell solder cup connectors
7790 50-pin male, 50-pin female, 25-pin male D-shell IDC
connectors
Available Services
7701-3Y-EW 1-year factory warranty extended to 3 years from date of
shipment
Ordering Information
7701 32-channel, Differential Multiplexer Module