rtd CAN SPIDER User manual

RTD Embedded Technologies, Inc.
AS9100 and ISO 9001 Certified
CAN SPIDER
CAN Bus Hub
User’s Manual
BDM-610040004 Rev. D

RTD Embedded Technologies, Inc.
103 Innovation Boulevard
State College, PA 16803 USA
Telephone: [phone]
Fax: [phone]
www.rtd.com
[email protected]
[email protected]

RTD Embedded Technologies, Inc. | www.rtd.com iii BRG2110 User’s Manual
Revision History
Rev A Initial Release
Rev B Corrected twisted pair CAN port connector table, added new board photo
Rev C Changed format and added changes to match features on Rev D PCB
Rev D Added pinouts of J4 and J5
Advanced Analog I/O, Advanced Digital I/O, aAIO, aDIO, a2DIO, Autonomous SmartCal, “Catch the Express”, cpuModule, dspFramework, dspModule, expressMate, ExpressPlatform, HiDANplus, “MIL Value for
COTS prices”, multiPort, PlatformBus, and PC/104EZ are trademarks, and “Accessing the Analog World”, dataModule, IDAN, HiDAN, RTD, and the RTD logo are registered trademarks of RTD Embedded
Technologies, Inc (formerly Real Time Devices, Inc.). PS/2 is a trademark of International Business Machines Inc. PCI, PCI Express, and PCIe are trademarks of PCI-SIG. PC/104, PC/104-Plus, PCI-104, PCIe/104,
PCI/104-Express and 104 are trademarks of the PC/104 Embedded Consortium. All other trademarks appearing in this document are the property of their respective owners.
Failure to follow the instructions found in this manual may result in damage to the product described in this manual, or other components of the system. The procedure set forth in this manual shall only be performed
by persons qualified to service electronic equipment. Contents and specifications within this manual are given without warranty, and are subject to change without notice. RTD Embedded Technologies, Inc. shall not
be liable for errors or omissions in this manual, or for any loss, damage, or injury in connection with the use of this manual.
Copyright © 2021 by RTD Embedded Technologies, Inc. All rights reserved.

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Table of Contents
1Introduction 6
Product Overview........................................................................................................................................................................ 6
Board Features ........................................................................................................................................................................... 6
Ordering Information................................................................................................................................................................... 6
Contact Information .................................................................................................................................................................... 6
1.4.1 Sales Support 6
1.4.2 Technical Support 6
2Specifications 7
Operating Conditions .................................................................................................................................................................. 7
Electrical Characteristics ............................................................................................................................................................ 7
3Board Connection 8
Board Handling Precautions ....................................................................................................................................................... 8
Physical Characteristics.............................................................................................................................................................. 8
Connectors and Jumpers............................................................................................................................................................ 9
3.3.1 External I/O Connectors 9
3.3.2 Bus Connectors 9
3.3.3 Jumpers 9
X9: CAN Bus Termination 9
X10: CAN Bus Termination 10
JP1: J5 CAN +5V 10
JP2: J4 CAN +5V 10
3.3.4 CAN Connectors 11
JP4: CAN connector 11
JP5: CAN connector 11
Steps for Installing .................................................................................................................................................................... 12
4Functional Description 13
Block Diagram........................................................................................................................................................................... 13
CAN Bus ................................................................................................................................................................................... 13
Power........................................................................................................................................................................................ 15
4.3.1 +8 to + 36 Input Volt Power Supply 15
4.3.2 +5 Volt Isolated Supply 15
5Troubleshooting 16
6Additional Information 17
PC/104 Specifications............................................................................................................................................................... 17
7Limited Warranty 18

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Table of Figures
Figure 1: Board Dimensions ..................................................................................................................................................................................... 8
Figure 2: Board Connections .................................................................................................................................................................................... 9
Figure 3 J4 pin one location seen from top ............................................................................................................................................................ 11
Figure 4 J5 pin one location seen from top ............................................................................................................................................................ 11
Figure 5: Example 104™Stack............................................................................................................................................................................... 12
Figure 6: CAN SPIDER Block Diagram .................................................................................................................................................................. 13
Figure 7 CANSpider Application Example.............................................................................................................................................................. 14
Figure 8 CANSpider Standalone Application Example........................................................................................................................................... 15
Table of Tables
Table 1: Ordering Options ........................................................................................................................................................................................ 6
Table 2: Operating Conditions .................................................................................................................................................................................. 7
Table 3: Electrical Characteristics ............................................................................................................................................................................ 7
Table 4: X9 Settings ................................................................................................................................................................................................. 9
Table 5: X10 Settings ............................................................................................................................................................................................. 10
Table 6: JP1 Settings.............................................................................................................................................................................................. 10
Table 7: JP2 Settings.............................................................................................................................................................................................. 10
Table 8: J4 Pinout. Looking into connector ........................................................................................................................................................... 11
Table 9: J5 Pinout. Looking into connector ........................................................................................................................................................... 11

RTD Embedded Technologies, Inc. | www.rtd.com 6BRG2110 User’s Manual
1Introduction
Product Overview
This manual gives information on the CAN Spider active CAN bus hub. The CAN Spider can connect up to four fiber optic ECAN527-2 PC/104
CAN bus interface boards together. Other CAN bus devices may be connected to the galvanically isolated twisted pair CAN port. This structure
enables flexible expansion of CAN Spiders as well as connection of twisted pair CAN devices to your network.
Board Features
•Fiber optic CAN Ports with data rates up to 1 Mbps
•Two galvanically isolated twisted pair CAN ports for system expansion
•Onboard bus termination resistors with jumpers
•Onboard power supply with 8 –36VDC input range
•Power outputs +5VDC and isolated +5VDC
Ordering Information
The CAN SPIDER is available with the following options:
Table 1: Ordering Options
Part Number
Description
CAN SPIDER
Fiber-optic CAN Bus Hub Module
Contact Information
1.4.1 SALES SUPPORT
For sales inquiries, you can contact RTD Embedded Technologies sales via the following methods:
Phone: [phone] Monday through Friday, 8:00am to 5:00pm (EST).
E-Mail: [email protected]
1.4.2 TECHNICAL SUPPORT
If you are having problems with you system, please try the steps in the Troubleshooting section of this manual.
For help with this product, or any other product made by RTD, you can contact RTD Embedded Technologies technical support via the
following methods:
Phone: [phone] Monday through Friday, 8:00am to 5:00pm (EST).
E-Mail: [email protected]

RTD Embedded Technologies, Inc. | www.rtd.com 7BRG2110 User’s Manual
2Specifications
Operating Conditions
Table 2: Operating Conditions
Symbol
Parameter
Test Condition
Min
Max
Unit
VIN
Supply Voltage J1
8
36
V
Ta
Operating Temperature
-40
+85
C
Ts
Storage Temperature
-55
+125
C
RH
Relative Humidity
Non-Condensing
0
90%
%
MTBF
Mean Time Before Failure
Telcordia Issue 2
30°C, Ground benign, controlled
10,844
Hours
Electrical Characteristics
Table 3: Electrical Characteristics
Symbol
Parameter
Test Condition
Min
Max
Unit
P
Power Consumption
VIN = 8 - 30V
0.75
W
VOUT5
+5V Output Supply Voltage
4.75
5.25
V
IOUT5
+5V Output Supply Current
9
A
VOUT5ISO
+5V Isolated Supply Voltage
4.75
5.25
V
IOUT5ISO
+5V Isolated Supply Current J2, J4
& J5 combined
66
mA
CAN Bus Twisted Pair
VCAN
CANH, CANL input/output voltage
-36
+36
V
Vdiff
Differential bus voltage
1.5
3.0
V
1/tbit
Maximum transmission speed
Non-return-to-zero
1
MBd
CAN Bus Fiber
HFBR-1522 Transmitter
HFBR-2522 Reciever
Data Rate
1
MBd
Cable Length
45
M
Note: The fiber optic transceivers are classified as IEC 825-1 Accessible Emission Limit (AEL) Class 1 based upon the current
proposed draft scheduled to go to effect on January 1, 1997. AEL Class 1 LED devices are considered eye safe.

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3Board Connection
Board Handling Precautions
To prevent damage due to Electrostatic Discharge (ESD), keep your board in its antistatic bag until you are ready to install it into your system.
When removing it from the bag, hold the board at the edges, and do not touch the components or connectors. Handle the board in an antistatic
environment, and use a grounded workbench for testing and handling of your hardware.
Physical Characteristics
•Weight: Approximately 100 g (0.22 lbs.)
•Dimensions: 90.17 mm L x 95.89 mm W (3.550 in L x 3.775 in W)
Figure 1: Board Dimensions

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Connectors and Jumpers
Figure 2: Board Connections
3.3.1 EXTERNAL I/O CONNECTORS
•J1 –VIN +8 –30 VDC Input
•J2 –VOUT5ISO +5 VDC Isolated Output
•J3 –VOUT5 +5 VDC Output
•J4 and J5 –CAN Bus Twisted Pair Interfaces
•RXD1 to RXD4 –Fiber receiver inputs
•TXD1 to TXD4 –Fiber Transmitter outputs
3.3.2 BUS CONNECTORS
The CAN Spider is physically PC/104 size with the same mounting holes, but it does not have a bus connector.
3.3.3 JUMPERS
On all jumpers, pin 1 is designated by a thick white silkscreen line, and a square pad on the PCB.
X9: CAN Bus Termination
X9 is used to terminate the CAN bus twisted pair near J5.
Table 4: X9 Settings
Setting
Description
1-2 Shorted
CAN bus terminated at J5 end (Default)
1-2 Open
CAN bus not terminated at J5 end
Fiber RXD 1
Fiber TXD 1
Fiber RXD 2
Fiber TXD 2
Fiber RXD 3
Fiber TXD 3
Fiber RXD 4
Fiber TXD 4
8 –36V Input
GND
GND
+5V Output
Isolated Gnd
Isolated +5V
J5
Twisted Pair
CAN Bus
J4
Twisted Pair
CAN Bus
X10
Termination
Jumper
X9
Termination
Jumper

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X10: CAN Bus Termination
X10 is used to terminate the CAN bus twisted pair near J4.
Table 5: X10 Settings
Setting
Description
1-2 Shorted
CAN bus terminated at J4 end (Default)
1-2 Open
CAN bus not terminated at J4 end
JP1: J5 CAN +5V
JP1 is used to provide isolated +5V to CAN bus connector J5 pin 8.
Table 6: JP1 Settings
Setting
Description
1-2 Shorted
Isolated +5V on CAN bus connector J5 pin 8 (Default)
1-2 Open
J5 pin 8 open
JP2: J4 CAN +5V
JP2 is used to provide isolated +5V to CAN bus connector J4 pin 8.
Table 7: JP2 Settings
Setting
Description
1-2 Shorted
Isolated +5V on CAN bus connector J4 pin 8 (Default)
1-2 Open
J4 pin 8 open

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3.3.4 CAN CONNECTORS
JP4: CAN connector
Figure 3 J4 pin one location seen from top
Table 8: J4 Pinout.
Pin number
9
7
5
3
1
Pin Name
GND
N/C
GND
CAN L
N/C
Pin number
10
8
6
4
2
Pin Name
N/C
5V ISO
N/C
CAN H
GND
JP5: CAN connector
Figure 4 J5 pin one location seen from top
Table 9: J5 Pinout.
Pin number
9
7
5
3
1
Pin Name
GND
N/C
GND
CAN L
N/C
Pin number
10
8
6
4
2
Pin Name
N/C
5V ISO
N/C
CAN H
GND

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Steps for Installing
1. Always work at an ESD protected workstation, and wear a grounded wrist-strap.
2. Turn off power to the PC/104 system or stack.
3. Select and install stand-offs to properly position the module on the stack.
4. Remove the module from its anti-static bag.
5. Check that pins of the bus connector are properly positioned.
6. Check the stacking order; make sure all of the busses used by the peripheral cards are connected to the cpuModule.
7. Hold the module by its edges and orient it so the bus connector pins line up with the matching connector on the stack.
8. Gently and evenly press the module onto the PC/104 stack.
9. If any boards are to be stacked above this module, install them.
10. Attach any necessary cables to the PC/104 stack.
11. Re-connect the power cord and apply power to the stack.
12. Boot the system and verify that all of the hardware is working properly.
Figure 5: Example 104™Stack

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4Functional Description
Block Diagram
The Figure below shows the functional block diagram of the CAN SPIDER. The various parts of the block diagram are discussed in the
following sections.
Figure 6: CAN SPIDER Block Diagram
CAN Bus
The CANSpider active CAN bus hub can connect up to four fiber optic CAN devices, such as RTD’s ECAN527-2 PC/104 CAN bus interface
boards together. Additional CAN bus devices may be connected to the galvanically isolated twisted pair CAN ports. This structure enables
flexible expansion of CAN Spiders as well as connection of twisted pair CAN devices to your network. The flow through from J4 to J5 with
jumperable termination resisters allows simple cascading of CANSpiders for more fiber ports or to attach additional twisted pair ports. See
Figure 7 CANSpider Application Example and Figure 8 CANSpider Standalone Application Example.

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Figure 7 CANSpider Application Example

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Figure 8 CANSpider Standalone Application Example
Power
The main power input to the CAN Spider is 8 –36 volts. The board makes +5V and isolated +5V as described below.
4.3.1 +8 TO +36 INPUT VOLT POWER SUPPLY
The main power input is 8 –36 volts on J1. This input is converted to 25 watts of +5 volts. This power is used to power the isolated +5 volt
supply and is available on J1 for external devices. See Table 3: Electrical Characteristics for details.
4.3.2 +5 VOLT ISOLATED SUPPLY
The +5V is also used to make an isolated +5V that powers the fiber interfaces and can optionally be used to power the devices on the twisted
pair cable at J4 and/or J5. See Table 6: JP1 Settings and Table 7: JP2 Settings for more information and Table 3: Electrical Characteristics for
specifications.

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5Troubleshooting
If you are having problems with your system, please try the following initial steps:
•Simplify the System –Remove modules one at a time from your system to see if there is a specific module that is causing a
problem. Perform you troubleshooting with the least number of modules in the system possible.
•Swap Components –Try replacing parts in the system one at a time with similar parts to determine if a part is faulty or if a type of
part is configured incorrectly.
If problems persist, or you have questions about configuring this product, contact RTD Embedded Technologies via the following methods:
Phone: [phone]
E-Mail: [email protected]
Be sure to check the RTD web site (http://www.rtd.com) frequently for product updates, including newer versions of the board manual and
application software.

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6Additional Information
PC/104 Specifications
A copy of the latest PC/104 specifications can be found on the webpage for the PC/104 Embedded Consortium:
www.pc104.org

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7Limited Warranty
RTD Embedded Technologies, Inc. warrants the hardware and software products it manufactures and produces to be free from defects in
materials and workmanship for one year following the date of shipment from RTD Embedded Technologies, Inc. This warranty is limited to the
original purchaser of product and is not transferable.
During the one year warranty period, RTD Embedded Technologies will repair or replace, at its option, any defective products or parts at no
additional charge, provided that the product is returned, shipping prepaid, to RTD Embedded Technologies. All replaced parts and products
become the property of RTD Embedded Technologies. Before returning any product for repair, customers are required to contact the factory for
a Return Material Authorization (RMA) number.
This limited warranty does not extend to any products which have been damaged as a result of accident, misuse, abuse (such as: use of
incorrect input voltages, improper or insufficient ventilation, failure to follow the operating instructions that are provided by RTD Embedded
Technologies, “acts of God” or other contingencies beyond the control of RTD Embedded Technologies), or as a result of service or
modification by anyone other than RTD Embedded Technologies. Except as expressly set forth above, no other warranties are expressed or
implied, including, but not limited to, any implied warranties of merchantability and fitness for a particular purpose, and RTD Embedded
Technologies expressly disclaims all warranties not stated herein. All implied warranties, including implied warranties for merchantability and
fitness for a particular purpose, are limited to the duration of this warranty. In the event the product is not free from defects as warranted above,
the purchaser's sole remedy shall be repair or replacement as provided above. Under no circumstances will RTD Embedded Technologies be
liable to the purchaser or any user for any damages, including any incidental or consequential damages, expenses, lost profits, lost savings, or
other damages arising out of the use or inability to use the product.
Some states do not allow the exclusion or limitation of incidental or consequential damages for consumer products, and some states do not
allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

RTD Embedded Technologies, Inc.
103 Innovation Boulevard
State College, PA 16803 USA
Telephone: [phone]
Fax: [phone]
www.rtd.com
[email protected]
[email protected]
Copyright 2021 by RTD Embedded Technologies, Inc. All rights reserved.