3B SERIES BACKPLANES

3B Series Overview |  3B Series Model Defintions |  Available 3B Series Modules |  3B Series Backplanes |  3B Series Power Supplies
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General Description

To address diverse applications, the 3B Subsystem Series includes a family of backplanes which provide a complete signal conditioning solution. The three backplane models, 3B01, 3B02 and 3B03 are designed for 16, 8 and 4 channels respectively, to offer users the flexibility to match the size of a system to specific applications. All backplanes are provided with #6-32 x 1-inch screws and standoffs for mounting. Several mounting options are available, including rack, surface and NEMA enclosure. 3B01
Order Now   Model 3B01 Backplane

All 3B Series modules feature a universal pin out and can be easily tailored to fit the user's application. Each backplane can accommodate any 3B Series module in a "Mix and Match" arrangement. Modules are "Hot Swappable"; power does not have to be removed when inserting or removing any module on the backplane. All backplanes provide a four screw terminal for each individual channel's input field connections. These connections satisfy all transducer inputs and provide transducer excitation when necessary. A cold junction temperature sensor is also supplied on each channel to accommodate thermocouple input modules. Each channel has two screw terminals for the output connections for the 4-20 mA output signal. Two 26-pin system connectors provide high level voltage I/O for all channels.

Figure 1 illustrates the 3B Series backplane functional block diagram. In addition, complete specifications are shown in the table.

3B01/02/03 BACKPLNS

Figure 1. Functional Block Diagram of Models 3B01, 3B02, and 3B03 Backplanes


Features

Mix and Match 3B Series I/O Module Capability

Factory Mutual (FM) Approved

CE Certified

±1500 V peak Channel/Channel and Input/Output Isolation

Three Backplane Options: 4 -, 8 -, 16 - Channel

-25°C to +85°C Temperature Range

LEDs Indicate When Power is Applied

Replaceable AC Line Fuse in Protective Housing

Versatile Mounting Options

Surface Mount - stand alone or using Surface Mount Kits; Models AC1331, AC1332, AC1333

19-inch Rack Mount Kit - Model AC1330

3B02 Order Now   Model 3B02 Backplane

3B03 Order Now   Model 3B03 Backplane

3B Series Backplane Specifications

Description 3B01 3B02 3B03
Channels 16 8 4
Isolation
Input-to-Output, Continuous 1500 V rms, maximum * *
Channel-to-Channel, Continuous 1500 V rms, maximum * *
Mechanical Dimensions-with modules 17.4" x 5.2" x 4.373"
(441.96 mm x
132.08 mm x 111.07 mm)		 11.0" x 5.2" x 4.373"
(279.4 mm x
132.08 mm x 111.07 mm)		 7.8" x 5.2" x 4.373"
(198.12 mm x
132.08 mm x 111.07 mm)
Mounting Standoffs 7 5 4
Cold Junction Temperature Sensors
Number provided on backplane 16 8 4
Initial Accuracy @ +25°C ±0.5°C * *
Accuracy, +5°C to +45°C ±0.5°C (±0.0125°C/°C) * *
System I/O Connector
Number 2, 26-pin * *
Type Amp 746290-6 * *
Power Supply Options
Voltage: AC Power Supply1 115 V AC * *
Voltage: DC Power Supply2 +24 V DC * *
Voltage: External Supplies3 ±15 V DC and +24 V DC * *
Fuse: AC Power Supply 220 V AC @ 500 mA * *
Power Indicator LEDs indicate ±15 V DC
and +24 V DC Power Applied		 * *
Environmental
Temperature Range
   Rated Performance -25°C to +85°C * *
   Operating -25°C to +85°C * *
   Storage -40°C to +85°C * *
Relative Humidity 0 to 95%
@ +60°C noncondensing		 * *

* Specifications same as model 3B01.
1 Optional AC/DC Power Supplies, Models AC1300, AC1301 and AC1307, are described in power supply section.
2 Optional DC/DC Converter, Model AC1302(Obsolete), is described in the power supply section.
3 External power may be connected to the P3 DC Power Connector. +24 V DC is only needed when current output is used.
Specifications subject to change without notice.

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