5B Series 16 Channel Backplane
5B02
FEATURES
Mix and Match 5B Series I/O Module Capability
Factory Mutual (FM) Approved
Approved for Use in Class I, Division2, Groups A, B, C, and D
Locations.
CE Certified: EMC Directive in Heavy Industrial Applications
1500 V rms Channel/Channel and Input/Output Isolation
16- channels
-25
o
C to +85
o
C Temperature Range
Single Threaded Insert for module Hold Down
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS
Industrial Signal Conditioning
Industrial Signal Isolation
Industrial Signal Filtering
Figure 1 5B02 Functional Block Diagram
PRODUCT OVERVIEW
To address diverse applications, the 5B Series includes a family
of backplanes and mounting cards which provide a complete
signal conditioning solution. The 16-channel backplane can be
mounted in a 19” x 3.5” panel space, providing an economical
means to handle signals.
This backplane provides four screw terminals per channel for
all field connections. These connections satisfy all transducer
inputs, process current outputs and provide transducer
excitation when necessary. A cold junction temperature sensor
(model AC1361) sensor is also supplied on each channel to
accommodate thermocouple input modules. A pair of pin
sockets permits installation of the AC1362 current sensing
resistor used with the 5B32 current input module on the 16-
channel backplane, a 26-pin system interface connector
provides high level I/O for all channels. The 5B02 Series
backplane requires a regulated +5VDC external power source.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
www.analog.com
Tel: 781.329.4700
Fax: 781.326.8703
© 2005 Analog Devices, Inc. All rights reserved.
5B02
GENERAL DESCRIPTION
Model 5B02 Backplane
- The 5B02 diagrammed in Figure 1, is
a 16 channel backplane. It incorporates input and output buses
that take advantage of the internal series output switches in the
input modules and the track-and-hold in the output module.
Designers integrating the 5B02 into a measurement and control
system do not need external multiplexers and can use a single
digital-to-analog converter to server numerous output channels.
Digital outputs from the host data acquisition system are used
to address the 5B Series modules and designate inputs and
outputs. Only one analog input, one analog output, and a
number of digital outputs are required to address up to 64
analog input/output channels.
Model 5B02 System Connectors
– Signal connections between
the 5B02 backplane and the associated measurement or control
system are made at P1. One signal path is provided for inputs
and one for outputs. Input and output modules are
independently addressed by two sets of six address pins and an
enable pin. In addition, a number of grounded pins are present
in the connector pin-out to provide shield conductors in the
ribbon cable. In some cases, discussed below, the ground
conductors will not provide an accurate signal reference, so a
SENSE pin is also provided in the pin-out. Several jumper and
component options in the backplane provide optimum ground
connections for various circumstances.
Model 5B02 Grounding
– Each 5B02 backplane is factory
configured with Jumpers W1, W2, and W4 installed. Jumper W1
grounds the shield wires in the ribbon cable (Pins 2,5, and 6) at
the 5B02 backplane. This will usually be the primary ground
connection between the 5B02 and the measurement system.
This connection is required if output modules will be used on
the backplane. It is also required if there is no high impedance
sense input (input low of a differential or pseudo-differential
system) available on the measurement system. Jumper W2
connects the sense input, if available, to Pin 25 so that the 5B02’s
ground is read. It can be left in place at all times. Jumper W4
connects +5 VDC power common to input/output common
(backplane measurement ground). A connection between
power common and input/output common is important for the
5B Series modules to function properly; however, if this
connection is made elsewhere in your system (the best place is
usually near the A/D or D/A converters), W4 should be cut
since a ground loop could result.
Model 5B02 Address Selection Jumpers
– The 5B02 backplane
can hold 16 modules in any combination of inputs or outputs.
Address decoders on the backplane (separate decoders are
provided for inputs and outputs) determine which module is
read (inputs) or driven (outputs). To permit system expansion,
up to four backplanes can be daisy-chained on the system I/O
ribbon cable for a total of 64 channels. Jumpers on each
backplane (labeled SH1-5 and SH6-10) determine the block of
16 addresses assigned to each backplane. Input (read) and
output (write) addressing are completely independent; in all
cases, Jumpers 1-5 control inputs and 6-10 control outputs.
Independent addressing might be used, for example, to update
output modules without interrupting the monitoring of input
modules.
Backplanes are factory configured with jumpers at Positions 1
and 6. This sets up the backplane as a stand-alone 16 –channel
system; the two highest order address bits in the read and write
addresses are ignored. Moving the jumpers to any other
position in the two blocks enables decoding of the full six
address bits. The exact position of the jumper determines
address position for the backplane. To use multiple backplanes
in this manner, connect the corresponding I/O connector pins
of each backplane in parallel. CAB-01 is a ribbon cable with
three 28-pin connectors designed for this purpose.
Figure 2
Rev. 0 | Page 2 of 7
5B02
5B02 Specifications
(typical @ +25°C and V
s
=+5 V dc Power)
Description
Number of Channels
ISOLATION
Input-to-Output Continuous
Channel-to-Channel Continuous
MECHANICAL DIMENSIONS
– with modules
1500 V rms, Maximum
1500 V rms, Maximum
3.5” x 17.4” x 3.2”
(88.9 mm x 442 mm x 81.3 mm)
WEIGHT
MOUNTING STANDOFFS
COLD JUNCTION TEMPERATURE SENSORS
Number provided on backplane
Type
Initial Accuracy @ +25
o
C
Accuracy +5
o
C to +45
o
C
SYSTEM I/O CONNECTOR
Number
Type
ADDRESS ENABLE INPUTS
Max Logic “0”
Min Logic “1”
Max Logic “1”
POWER SUPPLY OPTIONS
Voltage; Operating
Voltage; Max Safe Limit – with modules
Current – without modules
Fuse; (F1)
Environmental
Temperature Range
Rated Performance
Operating
Storage
Relative Humidity, 24 hours
-25°C to +85°C
-40°C to +85°C
-40°C to +85°C
0 to 95% @ +60°C noncondensing
+5 VDC +5%
+6.0 VDC Max.
32mA
4 Ampere Littlefuse © Type 252 004
+0.8 V
+2.0 V
+7.0 V
1, 26-pin
Amp 746290-6
16
Model AC1361
+0.5
o
C
+0.5
o
C (+0.0125
o
C/
o
C)
11.25 oz. (305 g)
7
16
Model 5B02
Rev. 0 | Page 3 of 7
5B02
PIN CONFIGURATION AND FUNCTIONAL DESCRIPTION
Table 1. Pin Function Descriptions—
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Description
V READ
I/O COM
V WRITE
SNS LO
I/O COM
I/O COM
READ (INPUT) ADDR LSB
READ (INPUT) ADDR BIT 2
READ (INPUT) ADDR BIT 3
READ (INPUT) ADDR BIT 4
READ (INPUT) ADDR BIT 5
READ (INPUT) ADDR MSB
READ (OUTPUT) ADDR LSB
READ (OUTPUT) ADDR BIT 2
READ (OUTPUT) ADDR BIT 3
READ (OUTPUT) ADDR BIT 4
READ (OUTPUT) ADDR BIT 5
READ (OUTPUT) ADDR MSB
READ ENB (0)
WRITE ENB (0)
NO CONNECTION
RESERVED
NO CONNECTION
NO CONNECTION
D COM
D COM
Figure 3 5B02 Pin-outs
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human
body and test equipment and can discharge without detection. Although this product features proprietary ESD
protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges.
Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Rev. 0 | Page 4 of 7
5B02
OUTLINE DIMENSIONS
Figure 3 Outline Dimensions
Rev. 0 | Page 5 of 7
