NI SC-2345

Portable, Shielded SCC Module Carriers
NI SC-2345 Series, NI SC-2350
• Accept up to 20 SCC modules
• Portable, low-profile packaging
• Cable directly to an E Series or
Basic multifunction device
• Powered by DAQ device
(additional power options available)
SC-2345 Connector Block
• Screw terminal connectivity
SC-2345 with
Configurable Connectors
• Panelettes for sensor connectivity,
control, and display
• Blank panelettes for filler
SC-2350 with Configurable
TEDS Connectors
Operating Systems
• Windows 2000/NT/XP
Recommended Software
• LabVIEW ™
• LabWindows™/CVI™
• Measurement Studio™
• Lookout
• VI Logger
Other Compatible Software
• Visual Basic
• C/C++, C#
Measurement Services Software
• NI-DAQ 7
• Accepts up to 16 channels of
TEDS Class II smart sensors
• Panelettes for sensor connectivity
Overview
The National Instruments SC-2345 Series consists of two types of
carriers, the NI SC-2345 connector block and the SC-2345 with
configurable connectors. The SC-2350 is a similar carrier with
configurable TEDS (Transducer Electronic Data Sheet) connectors
for connecting to smart TEDS sensors. These enclosures for SCC
signal conditioning modules connect directly to 68-pin DAQ devices.
They include sockets for SCC modules, along with screw terminals
for convenient connection to digital I/O and counter/time (GPCTR)
signals from the DAQ device. These carriers offer three power
options to increase the flexibility of deployment.
Sockets J17 through J20 access the two analog output channels and
the GPCTR channels 0 and 1.
SC-2345 Connector Block
The SC-2345 includes 20 SCC sockets, labeled J1 through J20 (see Figure
1). Sockets J1 through J8 accommodate SCC modules for conditioning
signals on the analog input channels of the DAQ device. For example, an
SCC module plugged into socket J1 conditions signals for channels 0 and
8 of the device.
You can use sockets J9 through J16 for either digital I/O modules or
dual-stage analog input conditioning. When using dual-stage
conditioning of analog inputs (for applicable modules only in the
SC-2345 series carriers), wire your input signal to the first-stage module
(in sockets J9 through J16). The SC-2345 routes the output signal of the
first-stage SCC module to the input of the second stage SCC module
internally (see Figure 2). When using sockets J9 through J16 for digital
I/O, simply plug in a digital SCC module or the SCC-FT01 for custom
digital applications. You can use any combination of SCC digital input or
digital output modules. The digital I/O lines of E Series or Basic
multifunction DAQ devices are configurable for input and output on a
line-by-line basis. You can also access the DIO lines of the DAQ device
using the screw terminal block.
Figure 1. Diagram of Socket Layouts on SC-2345 Connector Block
Analog SCC
Connected to J1
Inputs
Second Stage
Analog SCC
Connected to J1
First Stage
Analog SCC
Connected to J9
Inputs
A. Single-Stage Analog Input
SCC Configuration
Signals routed to
the second stage
SCC internally
B. Dual-Stage Analog Input
SCC Configuration
Figure 2. Single-Stage and Dual-Stage Analog Input SCC Configuration for the
SC-2345 Connector Block
Portable, Shielded SCC Module Carriers
SC-2345 Carrier with Configurable Connectors
The SC-2345 with Configurable Connectors is electrically and
functionally identical to the SC-2345 connector block. The only
differences are the orientation of some modules and the addition of
I/O connector and interface panelettes. This carrier is available with
either a side 68-pin connector (recommended for DAQCard products)
or a rear 68-pin connector (recommended for DAQPad products).
The SC-2345 with Configurable Connectors handles dual-stage
conditioning and digital I/O modules. It also offers custom
connectivity by adding panelettes along its front and rear panels.
Select up to 18 panelettes for side-mount 68-pin versions, or
15 panelettes for rear-mount 68-pin versions. With I/O panelettes,
you can connect your sensor directly to the SCC system. With
interface panelettes, you can add hardware controls and displays to
your system. Blank panelettes are also available to fill unused
positions or for modification to fit your custom application needs.
SC-2350
The SC-2350 includes 10 SCC module sockets, labeled J1 through J8,
J17, and J18 (see Figure 3). Sockets J1 through J8 accommodate SCC
modules for conditioning signals on the analog input channels of the
DAQ device. For example, an SCC module plugged into socket J1
would condition signals for channels 0 and 8 of the device. You can
use sockets J17 and J18 for SCC modules that condition analog
signals on the output channels of the DAQ device.
The SC-2350 contains a TEDS microcontroller with two digital
lines per analog input channel for communication with Class II
smart TEDS sensors (for more information on smart TEDS sensors
refer to ni.com/sensors).
Sensors Plug&Play™
The IEEE 1451.4 standard delivers plug-and-play capability to
analog sensors. End users, systems integrators, and developers can
automate the configuation of measurement systems for analog
sensors. By defining an easy add-on approach that brings TEDS
benefits to all types of sensors, the standard makes data acquisition
systems easier to set up, configure, and maintain. The TEDS
structure is compact and flexible enough to handle a very wide range
of sensor requirements.
Smart TEDS Sensors
An IEEE 1451.4 smart TEDS sensor consists of the analog
components and an embedded memory chip, which together provide
the mixed-mode interface for analog and digital signals. A smart
TEDS sensor identifies and describes itself – providing the
manufacturer, sensor model number, serial number, measurement
range, sensitivity, and calibration information. TEDS information
resides on a memory chip (EEPROM) within the sensor and is
accessed by measurement systems such as the SC-2350 via a simple
low-cost serial interface.
Figure 3. Diagram of Socket Layout for SC-2350
1SCC
Socket Reference Designator
5 Serial
2 SCC
Socket
6 Assembly
3 SCC
Key Slot
7 Screw-Terminal
4 50-Pin
2
Test Header
Number
9 Power
Number
Block
LEDs
10 J25
11 J21
8 J24
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Portable, Shielded SCC Module Carriers
Panelette
Minithermocouple jack
Thermocouple jack
BNC
SMB
Banana jack
LEMO (B-Series)
MIL-Spec
9-pin D-Sub
Momentary switch
Toggle switch
Rocker switch
LED
Potentiometer
Strain relief
Blank
Description
J or K-type
or uncompensated
J or K-type
or uncompensated
BNC connector
SMB connector
Banana jack
2-pin female
4, 6-pin female
2, 4, 6-pin female
Single (male)
Single (female)
Dual (male)
Dual (female)
On – off
(On – off – on)
(On – off – on)
Red, green, yellow,
and orange LEDs
1 turn, 10 Ω
Small
Filler panel
Connectors/Units
per Panelette
2
2
1
1
2
4
2
2
1
1
1
1
2
2
2
2
1
4
Slot Width
1
1
1
1
1
1
1
1
1
1
2
2
3
3
1
1
1
1
1
1
–
1
2
–
Accessories
The SC-2345 with configurable connectors and SC-2350 offer two
optional accessories. For 19 in. rack systems, choose the rack-mount kit.
If you are using two SCC systems, or a single SCC system with a DAQPad
device, choose the stacking kit to mechanically attach both systems.
Power Options
Table 1. SC-2345/SC-2350 Panelette Options
Panelettes
If you choose either of the two versions of the SC-2345 with
configurable connectors or the SC-2350 as your carrier, then you can
install connectivity and interface panelettes to customize your SCC
system. Panelette options (see Table 1, Figure 4) include BNC, SMB,
LEMO (B-Series), MIL-Spec, banana jack, thermocouple plug, 9-pin
D-Sub connectors, rocker switches, toggle switches, momentary
switches, potentiometers, and LEDs. Please note, some panelettes
occupy more than one panelette slot. All panelettes except for the
strain-relief options include lead wires that you connect to the screw
terminals of any SCC module or to the 42-pin screw terminal block
inside the SC-2345 or SC-2350. The thermocouple and
minithermocouple jack connector wires are made of the appropriate
metals to avoid forming unwanted cold junctions.
SC-2345 and SC-2350 carriers have three power options:
• SCC-PWR01 – 5 VDC from the DAQ device or an external supply
• SCC-PWR02 – universal AC external supply
• SCC-PWR03 – 7 to 42 VDC external supply module (power
supply not included)
One power module is included with your carrier. Power modules
are sold separately in case you want to use your SC-2345 or SC-2350
in two or more configurations.
If you choose the SCC-PWR01, it is possible to power your SCC system
with the internal power source of your DAQ device. NI DAQCards and
DAQPads provide 800 mW of total power (480 mW of analog power)
from their internal source. NI PCI and PXI devices provide 4.50 W of total
power (1.74 W of analog power) from their internal source. If the power
draw from your SCC modules is greater than the power available from
your DAQ device, then you must use an external power source. The
SCC-PWR02 includes an AC transformer. However, you must purchase
an additional power cord to match your country’s power requirements.
The SCC-PWR03 does not include a transformer but can be used
with an external transformer that provides 7 to 42 VDC. To
determine the valid power options for the modules in your SCC DAQ
system, use the online SCC Advisor at ni.com/advisors
Cabling
You connect your SC-2345 or SC-2350 to your DAQ device using
standard cables. To determine the cabling needed for your
configuration, see Table 2.
Screw Terminals
Each SC-2345 and SC-2350 shielded carrier includes a 42-position
screw terminal block for easy access to digital lines of the E Series or
Basic Multifunction DAQ device, including DIO<3, 5, 6, 7>,
PFI<0..9>, GPCTR 0,1, +5V, DGND, AISENSE, FREQ_OUT,
EXTSTROBE, and SCANCLK.
DAQ Device
68-pin E Series or Basic multifunction
100-pin E Series
Latching E Series DAQCards:
6062E, 6036E, 6024E
SC-2345
SH68-68-EP1
SH1006862
SHC6868-EP
1Can
also use the SH68-68R1 or R6868 2Only the first 68 pins will
interface to an SC-2345
Table 2. SC-2345 Cabling Options
Minithermocouple
BNC
SMB
9-Pin D-Sub
Banana Jack
LEMO (B-Series)
MIL-Spec
Toggle Switch
Rocker Switch
LED
Strain Relief
Potentiometer
Momentary Switch
Blank
Figure 4. SC-2345/SC-2350 Panelette Photos
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3
Portable, Shielded SCC Module Carriers
Ordering Information
NI SC-2345 Connector Block with
SCC-PWR01..............................................................777458-01
SCC-PWR02..............................................................777458-02
SCC-PWR03..............................................................777458-03
NI SC-2345 with Configurable Connectors (side 68-pin) with
SCC-PWR01..............................................................777722-01
SCC-PWR02..............................................................777722-02
SCC-PWR03..............................................................777722-03
NI SC-2345 with Configurable Connectors (rear 68-pin) with
SCC-PWR01..............................................................778018-01
SCC-PWR02..............................................................778018-02
SCC-PWR03..............................................................778018-03
SC-2350 with Configurable TEDS Connectors
SCC-PWR01..............................................................778990-01
SCC-PWR02..............................................................778990-02
SCC-PWR03..............................................................778990-03
Panelettes (continued)
Separate Power Modules
SH6868-EP
1 m ............................................................................184749-01
2 m ............................................................................184749-02
SH68-68R1-EP ..............................................................187051-01
R6868 ............................................................................182482-01
SH1006868
1 m ............................................................................182849-01
2 m ............................................................................182849-02
PSHR68-68 shielded cable kit ......................................777293-01
SHC6868-EP..................................................................186838-01
SCC-PWR01 ..................................................................183971-01
SCC-PWR02 ..................................................................183971-02
SCC-PWR03 ..................................................................183971-03
Power Cords for the SCC-PWR-02
U.S. 120 VAC..................................................................763000-01
Japan 100 VAC ..............................................................763000-01
United Kingdom 240 VAC ............................................763064-01
Swiss 220 VAC ..............................................................763065-01
Australian 240................................................................763066-01
Universal Euro 240 VAC................................................763067-01
North American 240 VAC ............................................763068-01
Panelettes
Minithermocouple, J-type (2 included) ......................184736-01
Minithermocouple, K-type (2 included) ....................184736-02
Minithermocouple, uncompensated (2 included) ......184736-03
Thermocouple, J-type ..................................................187597-01
Thermocouple, K-type..................................................187597-02
Thermocouple, uncompensated ..................................187597-03
BNC (2 included)..........................................................184737-01
Banana jack (2 included) ..............................................186405-01
LEMO (B-Series)
2-pin, female..............................................................187585-01
4-pin, female..............................................................187585-02
6-pin, female..............................................................187585-03
MIL–C–26482 (Series 1)
MS 3112 E 8-2 S ......................................................187591-01
MS 3112 E 8-2 S ......................................................187591-02
MS 3112 E 8-4 S ......................................................187591-03
SMB (4 included) ..........................................................185505-01
9-pin D-Sub
1 male ........................................................................184738-01
2 male ........................................................................184738-02
1 female......................................................................184738-03
2 female......................................................................184738-04
Strain relief (small) ......................................................184721-01
Blank ..............................................................................184483-01
Momentary push-button switches (2 included) ........185380-01
Rocker switch (on/off/on) ............................................185379-01
Toggle switches (on/off/on, 2 included) ......................185378-01
Potentiometer (10 kΩ, single-turn) ............................185377-01
LEDs (4 included-1 green, 1 red,
1 orange, 1 yellow) ....................................................185376-01
Cables
Accessories
Rack-mount kit (1U) ....................................................777665-01
Stacking kit ....................................................................777666-01
Panel mount kit ............................................................187243-01
Strain relief kit1 ............................................................187407-01
1You cannot use the strain relief kit in conjunction with the rack-mount, panelmount, or stacking kits.
BUY ONLINE!
Visit ni.com/info and enter sc2345 or sc2350.
Specifications
SC-2345 connector block .................................
SCC-PWR01
Input..................................................................
Output...............................................................
5 VDC ±5% from an external source, E Series,
or Basic multifunction DAQ device
+5 VDC, 100% efficiency ±15 VDC, 62% efficiency
SCC-PWR02
Input..................................................................
Output ..............................................................
100 to 240 VAC, 1 A maximum
+5 VDC, 1 A
±15 VDC, ±0.3 A
SCC-PWR03
Input ................................................................
Output...............................................................
7 to 42 VDC (from external source)
+5 VDC, 75% efficiency
±15 VDC, 46% efficiency
SC-2345 with configurable connectors
and SC-2350 .....................................................
External AC adapter (for SCC-PWR02) ............
4
30.6 by 25.4 by 4.4 cm
(12.1 by 10 by 1.7 in.)
15.5 by 8.5 by 4.8 cm
(6.1 by 3.3 by 1.9 in.)
Connectors
SC-2345 cable ..................................................
SCC input..........................................................
SCC output ......................................................
Physical Dimensions
SCC modules ....................................................
24.1 by 26.2 by 3.94 cm
(9.5 by 10.3 by 1.6 in.)
8.9 by 2.9 by 1.9 cm
(3.5 by 1.2 by 0.7 in.)
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68-pin male SCSI II
Removable screw terminal or
minithermocouple connector
20-pin right-angle male connector
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