Connect Tech Blue Heat/Net Sync User manual

Blue Heat/Net Sync
User Manual
Ethernet-to-Serial Synchronous Communications
Connect Tech Inc.
42 Arrow Road
Guelph, Ontario
N1K 1S6
Tel: [phone]
Toll: 800-426-8979 (North America only)
Fax: [phone]
Email: [e-mail]
[email protected]
Web: www.connecttech.com
CTIM-00044 Revision 0.03 , July 8, 2010

Connect Tech Blue Heat/Net Sync User Manual
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Limited Lifetime Warranty
Connect Tech Inc. provides a Lifetime Warranty for all Connect Tech Inc. products. Should this
product, in Connect Tech Inc.'s opinion, fail to be in good working order during the warranty
period, Connect Tech Inc. will, at its option, repair or replace this product at no charge, provided
that the product has not been subjected to abuse, misuse, accident, disaster or non Connect Tech
Inc. authorized modification or repair.
You may obtain warranty service by delivering this product to an authorized Connect Tech Inc.
business partner or to Connect Tech Inc. along with proof of purchase. Product returned to
Connect Tech Inc. must be pre-authorized by Connect Tech Inc. with an RMA (Return Material
Authorization) number marked on the outside of the package and sent prepaid, insured and
packaged for safe shipment. Connect Tech Inc. will return this product by prepaid shipment
service.
The Connect Tech Inc. lifetime warranty is defined as the serviceable life of the product. This is
defined as the period during which all components are available. Should the product prove to be
irreparable, Connect Tech Inc. reserves the right to substitute an equivalent product if available
or to retract lifetime warranty if no replacement is available.
The above warranty is the only warranty authorized by Connect Tech Inc. Under no
circumstances will Connect Tech Inc. be liable in any way for any damages, including any lost
profits, lost savings or other incidental or consequential damages arising out of the use of, or
inability to use, such product.
Copyright Notice
The information contained in this document is subject to change without notice. Connect Tech
Inc. shall not be liable for errors contained herein or for incidental consequential damages in
connection with the furnishing, performance, or use of this material. This document contains
proprietary information that is protected by copyright. All rights are reserved. No part of this
document may be photocopied, reproduced, or translated to another language without the prior
written consent of Connect Tech, Inc.
Copyright © 2010 by Connect Tech Inc.
Trademark Acknowledgment
Connect Tech Inc. acknowledges all trademarks, registered trademarks and/or copyrights
referred to in this document as the property of their respective owners.
Not listing all possible trademarks or copyright acknowledgments does not constitute a lack of
acknowledgment to the rightful owners of the trademarks and copyrights mentioned in this
document.

Connect Tech Blue Heat/Net Sync User Manual
Revision 0.03 3
Customer Support Overview
If you experience difficulties after reading the manual and/or using the product, contact the
Connect Tech reseller from which you purchased the product. In most cases the reseller can help
you with product installation and difficulties.
In the event that the reseller is unable to resolve your problem, our highly qualified support staff
can assist you. Our support section is available 24 hours a day, seven days a week on our
website at:
www.connecttech.com/sub/support/support.asp. See the contact information section below for
more information on how to contact us directly. Our technical support is always free.
Contact Information
We offer three ways for you to contact us:
Telephone/Facsimile
Technical Support representatives are ready to answer your call Monday through Friday, from
8:30 a.m. to 5:00 p.m. Eastern Standard Time. Our numbers for calls are:
Telephone: [phone] (North America only)
Telephone: [phone] (Live assistance available 8:30 a.m. to 5:00 p.m. EST, Monday to
Friday)
Facsimile: 519-836-4878 (online 24 hours)
Email/Internet
You may contact us through the Internet. Our email and URL addresses are:
[email protected]m
[email protected]m
www.connecttech.com
Mail/Courier
You may contact us by letter and our mailing address for correspondence is:
Connect Tech Inc.
Technical Support
42 Arrow Road
Guelph, Ontario
Canada N1K 1S6
Note:
Please go to the Download Zone or the Knowledge Database in the
Support Center on the Connect Tech website for product
manuals, installation guides, device driver software and
technical tips.
Submit your technical support questions to our customer support engineers via the Support
Center on the Connect Tech website.

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Certification Statements
Preliminary: Testing is still pending.
Class A Computing Device
Connect Tech Inc. declares that the product(s) covered by the contents of this manual have been
tested and found compliant with the below listed standards as required by the Electromagnetic
Compatibility (EMC) Directive for General Immunity Compliance.
EN 55022 Conducted and Radiated emissions
CISPR 22 Class A
EN 55024 Immunity to Disturbances
EN 61000-4-2
EN 61000-4-4
EN 61000-4-6
EN 61000-3-2 Exempt
EN 61000-4-3
EN 61000-4-5
EN 61000-4-11
EN 61000-3-3 Pass
The above satisfy the requirements of:
Preliminary: Testing is still pending.
USA:
FCC –CFR47, Part 15, part 2
Canada:
ICES-003
Europe
EMC Directive
Japan:
VCCI
Australia/New Zealand:
AS/NZS

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Table of Contents
Limited Lifetime Warranty...................................................................................................................2
Copyright Notice................................................................................................................................2
Trademark Acknowledgment................................................................................................................2
Customer Support Overview................................................................................................................3
Contact Information............................................................................................................................3
Certification Statements......................................................................................................................4
Table of Contents ...............................................................................................................................5
List of Figures....................................................................................................................................7
List of Tables .....................................................................................................................................8
Introduction.......................................................................................................................................9
Features ..................................................................................................................9
Understanding Virtual COM Ports ...........................................................................10
Blue Heat/Net Sync Installation Overview...........................................................................................10
Hardware Installation.......................................................................................................................11
Connecting the Blue Heat/Net Sync to Your Network:.................................................11
Ethernet LEDs ...............................................................................................11
Serial Port LEDs............................................................................................12
Connecting Serial Devices.......................................................................................12
V.28 Connections:..........................................................................................12
Basic Async (V.28) RS-232 Null Modem Connection .................................12
Basic Sync (V.28) RS-232 Connection (Provides Clock) ............................12
Basic Sync (V.28) RS-232 Connection (Receives Clock).............................12
RS-422/V.11 Connections................................................................................13
Blue Heat/Net Synchronous Clocking........................................................................13
Loopback Connectors..............................................................................................14
Connecting Power ..................................................................................................15
DC Power Connector.............................................................................15
Phoenix Locking Screw Terminal Connector ............................................15
Activating the Special Operations Mode and Default Settings......................................17
Using the Reset Button to Activate the Special Operations Mode.........................17
Selecting a Special Operation..........................................................................17
Power On Diagnostics: ...........................................................................................18
LED Error Codes...........................................................................................18
SCM Cabling requirements......................................................................................21
SCM: Serial Configuration Manager................................................................21
Setting a Static or Dynamic IP Address.....................................................................21
Set the IP Address Using the Web Configuration Manager.................................22
Set the IP Address Using the Serial Configuration Manager...............................22
Blue Heat/Net Sync Configuration......................................................................................................23
CDS (Configuration Data Space) .............................................................................24
Description....................................................................................................24
Access to CDS Parameters..............................................................................24
SCM (Serial Configuration Manager).......................................................................25
Description....................................................................................................25
Getting Access to the SCM ..............................................................................25
SCM Command Reference...............................................................................25
Brief Command List...............................................................................25
Command Details..................................................................................26
boot.............................................................................................26
cfg...............................................................................................26
exit ..............................................................................................27
help .............................................................................................27

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info..............................................................................................27
net...............................................................................................27
save.............................................................................................29
update..........................................................................................29
WCM (Web Configuration Manager)........................................................................31
Signing In to the Web Configuration Manager ..................................................31
Configure Advanced Serial Settings.........................................................33
Configure Blue Heat/Net Sync Settings ....................................................33
Configure Firmware ..............................................................................35
Restore Defaults....................................................................................35
Saving To Flash.....................................................................................36
Monitoring Your Blue Heat/Net .......................................................................37
Monitor Serial Port Traffic.....................................................................37
Monitor Network Traffic.........................................................................38
Monitor TCP/IP Statistics.......................................................................38
My Blue Heat/Net Sync...........................................................................38
Software Installation for Windows......................................................................................................40
Installing the Blue Heat/Net Sync Configuration Manager ..........................................40
Running the Configuration Manager.........................................................................44
Device Installation..................................................................................................44
Configure Default Blue Heat/Net Sync..............................................................45
Add New Blue Heat/Net Sync...........................................................................45
Auto Discover Blue Heat/Net Sync...................................................................46
Firmware Upgrades..........................................................................................................................47
Upgrade using WCM (Web Configuration Manager)..................................................47
Upgrade using SCM (Serial Configuration Manager).................................................47
Software Development ......................................................................................................................48
Memory Map of IUSC and PLD Functions........................................................50
ColdFire (5272) Bus:.............................................................................50
IUSC Access: ........................................................................................50
PLD Resource Access: ...........................................................................51
PLD Memory Map Table.................................................................................51
Port Settings, Clock Setup and General Settings.........................................................59
IUSC Clocking Logic:.............................................................................................61
Appendix .........................................................................................................................................62
Blue Heat/Net Sync Specifications ............................................................................62
Operating Environment ..................................................................................62
Communications ............................................................................................62
ESD Protection..............................................................................................62
Power ...........................................................................................................62
Connectors....................................................................................................62
Dimensions....................................................................................................62
Cable and Power Supply Options.....................................................................62
Protocol Descriptions.....................................................................................63
Pinouts ..................................................................................................................64
DB-25 Female Pinouts....................................................................................64
DB-9 Female Pinouts .....................................................................................65
Multi-drop Communications Using V.11 / RS422/RS485 Line Modes...................66
Rack Mount Option:................................................................................................66
Default Settings ......................................................................................................67
Network Settings ............................................................................................67
Boot Settings..................................................................................................67
SCM Operation Settings..................................................................................67
Common Configuration Setups.................................................................................68
Static IP Setup ...............................................................................................68
Using SCM ...........................................................................................68
Using WCM ..........................................................................................68

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DHCP Setup..................................................................................................69
Using SCM ...........................................................................................69
How the Blue Heat/Net Sync Boots Up......................................................................69
Bootup Sequence............................................................................................70
Flowchart of Special Operations Mode using the reset button.............................71
Asynchronous Communications Tutorial...........................................................71
Serial Line Interface Tutorial...................................................................................72
RS-232 Line Interface:....................................................................................72
Differential Line Interfaces: ............................................................................72
RS485/RS422/V.11 Details..............................................................................72
Basic 4-Wire, Full Duplex Communications:............................................73
Multi-drop 4-Wire, Full Duplex Communications:....................................74
Basic - Wire, Half Duplex Multi-drop Connection:....................................74
Bus Contention on Differential Multi-drop Networks: ........................................75
Termination Resistors in Differential Networks .................................................76
Termination Resistors in Differential Networks:........................................76
List of Figures
Figure 1: LED Locations on Blue Heat/Net Sync..........................................................................11
Figure 2: Basic V.28 Asynchronous Connections .........................................................................12
Figure 3: Basic V.28 Synchronous Connections ...........................................................................12
Figure 4: Basic V.28 Synchronous Connections ...........................................................................12
Figure 5: Basic RS-422/V.11 Asynchronous Connections ............................................................13
Figure 6: Basic RS422/V.11 Synchronous Connections................................................................13
Figure 7: Recommended Pinouts for V.28 (RS-232) Loopback Connector...................................14
Figure 8: Recommended Pinouts for a V.11 (RS422) Loopback Connector .................................14
Figure 9: DC Power Connector Illustration .................................................................................15
Figure 10: Phoenix Locking Screw Terminal Power Connector Illustration................................15
Figure 11: LED Error Code Example...........................................................................................18
Figure 12: Blue Heat/Net Sync Serial Cable Connection Diagram ..............................................21
Figure 13: Web Configuration Manager Sign In ..........................................................................31
Figure 14: Blue Heat/Net Sync Settings........................................................................................32
Figure 15: Configuring Blue Heat/Net Sync Settings....................................................................35
Figure 16: Firmware Upgrades/Downloads.................................................................................35
Figure 17: Restore Default Settings ..............................................................................................36
Figure 18: Saving To Flash...........................................................................................................37
Figure 19: Monitoring Serial Port Activity...................................................................................37
Figure 20: Monitoring Network Traffic ........................................................................................38
Figure 21: Monitoring TCP/IP Statistics ......................................................................................38
Figure 22: My Blue Heat/Net Sync Hardware Details..................................................................39
Figure 23: My Blue Heat/Net Sync Software Details....................................................................39
Figure 24: Blue Heat/Net Sync Driver/Software Installation CD .................................................40
Figure 25: Blue Heat/Net Sync Software Installation Screen .......................................................41
Figure 26: My Blue Heat/Net Sync Places Screen ........................................................................44
Figure 27: Add or Auto Discover Blue Heat/Net Sync Menu Screen............................................45
Figure 28: Add Blue Heat/Net Sync Screen ..................................................................................45
Figure 29: Auto Discover Blue Heat/Net Sync Screen..................................................................46
Figure 46: Bootup Sequence .........................................................................................................70
Figure 47: Bootup Sequence via Reset Button ..............................................................................71
Figure 48: Typical Asynchronous Date Frame.............................................................................72

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List of Tables
Table 1: BlueHeat/Net Sync Power Connections and Current Specifications ..............................16
Table 2: Connector Properties......................................................................................................16
Table 3: Available Special Operations..........................................................................................18
Table 4: LED Error Codes for Blue Heat/Net Sync ......................................................................19
Table 5: Chip Selects....................................................................................................................48
Table 6: Interrupts.........................................................................................................................49
Table 7: ColdFire MCF5272 GPIO ..............................................................................................49
Table 8: Base Address Map...........................................................................................................49
Table 9: DB-25 Female Pinouts....................................................................................................64
Table 10: DB-9 Female Pinouts....................................................................................................65

Connect Tech Blue Heat/Net Sync User Manual
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Introduction
Connect Tech‟s Blue Heat/Net Sync allows remote access to synchronous/asynchronous serial
devices via an Ethernet LAN or the Internet. Blue Heat/Net Sync network-enables serial
communication devices that are designed to be connected to serial ports so that the devices no
longer need to be tied to a single computer.
The Blue Heat/Net Sync hardware is simple to install as it involves little more than plugging the
unit into the appropriate locations and performing the configuration steps outlined in this
manual.
Driver setup is made easy by Blue Heat/Net Sync‟s auto-detection feature. The software does the
work of locating the units, while the Configuration Manager leads you through the rest of the
installation.
Blue Heat/Net Sync‟s firmware is easily configured with a choice of methods: web browser,
Telnet, or direct serial connection with a terminal and/or terminal software. Once the Blue
Heat/Net Sync has been configured to your specifications, you will be able to remotely access
your devices immediately.
Features
●Four software selectable synchronous or asynchronous serial ports
●Software switchable; V.28, V.10, V.11, V.35, EIA-530, X.21 line modes
●Software switchable line modes and termination
●Supports NRZ, NRZB, NRZI-Mark, NRZI-Space, B-Phase-Space, B-Phase-Manchester,
Differential Bi-Phase encoding
●Transmission rates up to 9.216 Mbps (synchronous), 230.4 Kbps (asynchronous). 10 Mbps
communications possible with external clock.
●Bipolar clock input accepts sine/square wave signals up to 20 MHz +/- 10V.
●Includes synchronous protocols; SDLC, HDLC, MonoSync, BiSync, Transparent BiSync
●Software selectable internal and external clocking modes. External clocking is provided on
TXC and RXC pins
●Supports IP, TCP, UDP, ARP, RARP, TFTP, DHCP, BOOTP, HTTP, Telnet and DNS
●Use of TCP/IP means communications can be routed to support WANs, as well as LANs.
The Blue Heat/Net Sync does not need to be located at the same site as the controlling
computer
●Raw TCP server (HDLC and External Sync Line Modes only)
●Several levels of security are built into the Blue Heat/Net Sync that can limit connections
and help to ensure the privacy of data flow
●Memory: 8 MB flash, 16 MB SDRAM
●Includes an auto-MDIX 10Base-T, 100Base-TX LAN interface
●Network boot or booting from built-in flash memory
●Firmware upgrades are downloadable
●Customizable uClinux embedded operating system running on a ColdFire embedded
processor.
●Configuration can be done via Web Browser, Telnet or direct serial connection
●Front mounted diagnostic LEDs
●5-28 VDC power input using either DC barrel or Phoenix screw terminal connector
Optional 5VDC power supply available
●1U rack mount kit available

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Understanding Virtual COM Ports
In a typical serial port setup, the application communicates directly with the connected serial
port hardware.
Virtual COM ports differ in that the application communicates with a network protocol layer that
transfers the necessary information to and from the remote serial ports. The virtual ports appear
as standard serial ports to the application, but in reality the data is translated into a series of
Ethernet messages between the Blue Heat/Net Sync unit and the host computer. The serial port is
not physically connected to the host computer, but this is transparent to the application trying to
access it.
There are several advantages to using virtual COM ports, which include:
Distance –The serial ports can be a great distance away from the host computer. They are
not limited by the standard electrical characteristics of the RS-232 or RS-422 interface
because the primary data transfer is being done via Ethernet. Depending on the set up, these
serial ports can be at a different location and the Internet can act as the carrier of the serial
port traffic.
Speed –Short RS-232/422 cable lengths can be used with the primary distance relying on
the network connection. The capacitance of long lengths of serial cable does not limit data
speeds in these cases.
Cabling –Cost effective Ethernet cabling can be used for the transfer of information to the
Blue Heat/Net Sync and often this is part of the existing networking infrastructure.
Connecting serial ports in a remote location can be as easy as plugging in a Blue Heat/Net
Sync to the Ethernet network. This provides a simple, clean cabling arrangement.
Port Sharing –In some applications it is desirable to have a serial resource that is accessed
and shared by more than one host computer. Connect Tech‟s virtual serial port technology
allows this to be done easily.
Routing –Different ports on a Blue Heat/Net Sync can be connected to multiple host
computers.
Monitoring –Because the virtual serial ports are on the network, they can easily be
monitored to ensure everything is operating correctly.
Blue Heat/Net Sync Installation Overview
There are three main stages in the installation process for your Blue Heat/Net Sync.
1. Hardware Installation
This involves the physical connection of the Blue Heat/Net Sync hardware to your
network, and addresses issues such as cabling and power requirements.
2. Blue Heat/Net Sync Configuration
The first step in the configuration process is to set the IP Address. Then use one of three
available methods to configure the Blue Heat/Net Sync firmware settings for your
application. This can be done through the SCM (Serial Configuration Manager) or the
WCM (Web Configuration Manager), depending on circumstances and personal
preference.
3. Software Installation for Windows
This step installs and configures the Blue Heat/Net Sync drivers and ports for your host
Operating System and allows you to set parameters specific to your serial requirements.
This is done via the Blue Heat/Net Sync Configuration Manager.
NOTE: Software support for Windows and Linux is still in
development

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Hardware Installation
Connecting the Blue Heat/Net Sync to Your Network:
Before you begin, take a minute to ensure that your package includes the required components
for your Blue Heat/Net Sync:
•One Blue Heat/Net Sync unit
•One power supply
•One CD containing software and documentation
•One Phoenix contact screw terminal plug PN: 1847055
•One RJ-45 cable (optional)
If any of these components is missing, contact Connect Tech or your reseller.
Ethernet LEDs
The front panel of the Blue Heat/Net Sync features Ethernet and serial port LEDs to monitor
activity.
Power: When this LED is on, the Blue Heat/Net Sync is receiving power.
CPU: Once the uClinux firmware is booted and running correctly, this LED lights up.
10/100:This LED represents the line rate at which the Blue Heat/Net Sync is connected
to your network.
LED on = a 100 megabit connection.
LED off = a 10 megabit connection.
(The Blue Heat/Net Sync automatically detects the line rate of your network).
L/A: This light illuminates when the connection to your network or computer is
achieved.
A blinking light indicates that Transmit (Tx) or Receive (Rx) activity is detected
on the Ethernet cable.
FD: Indicates that your network is running in full duplex or half duplex mode:
ON = full duplex, OFF = half duplex
Figure 1: LED Locations on Blue Heat/Net Sync

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Serial Port LEDs
The serial ports LEDs indicate serial activity for each port.
•A flashing LED indicates that the port in question is receiving or transmitting data.
Connecting Serial Devices
V.28 Connections:
V.28 has signaling levels the same EIA RS232.
Basic Async (V.28) RS-232 Null Modem Connection
This is the typical way to connect a Blue Heat/Net Sync to another serial device.
Figure 2: Basic V.28 Asynchronous Connections
Basic Sync (V.28) RS-232 Connection (Provides Clock)
Figure 3: Basic V.28 Synchronous Connections
Basic Sync (V.28) RS-232 Connection (Receives Clock)
Figure 4: Basic V.28 Synchronous Connections
NOTE: The Blue Heat/Net Sync clock signals are bidirectional.
See Blue Heat/Net Sync Clocking for more details.
2 - TX
3 - RX
15 - T/RXC
7 - SR
RX
TX
RXC
SR
Blue Heat/Net Sync
RS-232 Device
2 - TX
3 - RX
17 - T/RXC
7 - SR
RX
TX
RXC
SR
Blue Heat/Net Sync
RS-232 Device
2 - TX
3 - RX
7 - SR
RX
TX
SR
Blue Heat/Net Sync
RS-232 Device

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RS-422/V.11 Connections
The following are basic connections that can be accomplished when the I/O levels are in V.11 (RS-
422) mode. V.11 mode signaling can be enabled with EIA-530, RS-449 or X.21 modes on your Blue
Heat/Net Sync.
Figure 5: Basic RS-422/V.11 Asynchronous Connections
Figure 6: Basic RS422/V.11 Synchronous Connections
NOTE: Blue Heat/Net Sync clock signals are bidirectional. The
Blue Heat/Net Sync can either source or receive a clock. See Blue
Heat/Net Sync Clocking for more details.
Blue Heat/Net Synchronous Clocking
The clocking circuits on the Blue Heat/Net Sync are very flexible. The Blue Heat/Net Sync DB-25 clock
pins are bi-directional. This means that the TXC or RXC pins can be inputs receiving a clock or outputs
driving a clock. Functionally the two pins are equal. For example, the following clocking combinations are
possible:
RXC as clock input and TXC as clock input.
RXC as clock output and TXC as clock output.
RXC as clock input and TXC as clock output.
RXC as clock output and TXC as clock input.
The Blue Heat/Net Sync receivers and transmitters can be clocked independently from any combination of
the above or from internal clock sources.
Clocking is also available from the EXT_REF_CLK input pin on the DB-9 female.
2 - TX-
14 - TX+
16 - RX+
3 - RX-
9 - R/TXC+
17 - R/TXC-
7 - SR
RX-
RX+
TX+
TX-
RXC
RXC
SR
Blue Heat/Net Sync
RS-422/V.11 Device
2 - TX-
14 - TX+
16 - RX+
3 - RX-
7 - SR
RX-
RX+
TX+
TX-
SR
Blue Heat/Net Sync
RS-422/V.11 Device

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Loopback Connectors
Loopback connectors are useful for performing diagnostics. The following figure illustrates the
recommended pinouts for creating loopback connectors for Blue Heat/Net Sync.
Figure 7: Recommended Pinouts for V.28 (RS-232) Loopback Connector
Figure 8: Recommended Pinouts for a V.11 (RS422) Loopback Connector
NOTES:
1. For an asynchronous loopback, omit the TXC and RXC pin.
2. When using clock signals, one signal must be configured as an
input, while the other must be configured as an output.
3. When using a DB-25 female loopback connector, solder cup
DB-25 connectors and 24 AWG solid core wire, such as wire
from a CAT5 cable is recommended.
2 - TX-
14 - TX+
16 - RX+
3 - RX-
9 - RXC+
17 - RXC-
11 - TXC+
12 - TXC-
7 - SR
DB-25 Male
2 - TX
3 - RX
4 - RTS
5 - CTS
6 -DSR
8 - DCD
20 - DTR
22 - RI
15 - TXC
17 - RXC
DB-25 Male

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Revision 0.03 15
Connecting Power
The Blue Heat/Net Sync uses either a standard DC power jack or a Phoenix locking screw
terminal connector for power input. The Blue Heat/Net Sync can be safely connected or
disconnected at any time. The standard power supply requirements are as follows:
Model BMG006
5V (2.5A) power input using a DC barrel or Phoenix screw terminal connector. Rev A
models.
5V (2.5A) –28 V DC (450mA) power input using a DC barrel or Phoenix screw terminal
connector. Rev B or greater models only.
DC Power Connector
Figure 9: DC Power Connector Illustration
NOTE: The center is positive, outside is ground (0V).
Phoenix Locking Screw Terminal Connector
Figure 10: Phoenix Locking Screw Terminal Power Connector Illustration

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Table 1: BlueHeat/Net Sync Power Connections and Current Specifications
BlueHeat/Net
Description
Connector plug
type
Connector
Polarity
Voltage
Current
4 Port DB25
Synchronous /
Asynchronous
models (Rev A)
Centre Positive*
5VDC
875mA
Left Positive*
5-28VDC
@5V=2500mA
@28V=450mA
4 Port DB25
Synchronous /
Asynchronous
models (Rev B)
Centre Positive*
5-28VDC
@5V=2500mA
@28V=450mA
Left Positive*
5-28VDC
@5V=2500mA
@28V=450mA
*Note: The power input is protected by a series diode to prevent damage in the case of a reverse polarity
connection.
Table 2: Connector Properties
Type
Details
Part Number
Typical Wire
Gauge
Standard DC Barrel
2.1mmID / 5.5mmOD
Digi-Key: CP3-1000-ND, or
equivalent
18-24 AWG
Stranded
Locking Screw Terminal,
3.3mm pitch
MC Series
Phoenix PN: 1847055, or
equivalent
16-28 AWG
Stranded
Screw Terminal,
3.5mm pitch
MC Series
Phoenix PN: 1840366, or
equivalent
16-28 AWG
Stranded

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Activating the Special Operations Mode and Default Settings
Blue Heat/Net Sync includes a push button on the rear of the unit beside the DC power
connector. This push button can be used to perform special operations such as resetting the unit
to its default settings or forcing port scanning in situations where the SCM is not accessible.
Using the Reset Button to Activate the Special Operations Mode
To activate the Special Operations Mode, hold the reset button while the unit is powering up.
Hold the button until all the port LEDs blink rapidly and then release the reset button. The port
LEDs will continue to flash rapidly after the reset button is released to indicate the Special
Operations Mode is active.
Selecting a Special Operation
Once the Special Operations Mode has been activated, four operation options are available:
1. Abandon the Special Operations Mode
To abandon the Special Operations Mode without selecting a special operation, press
and hold the reset button for at least four seconds. While the button is pressed, the
rapid flashing of the port LEDs will stop. After four seconds, the rapid flashing will
resume and the reset button can be released. After the release of the reset button, the
port LEDs will turn off, indicating that the Special Operations Mode has terminated.
2. Cancel a Special Operation
If you need to cancel a special operation after it has been selected, repeatedly press the
reset button until all the port LEDs begin to flash rapidly. Then abandon the Special
Operations Mode by pressing the reset button for four seconds, as explained above.
3. Select a Special Operation
Operations are selected by repeated short presses of the reset button. Each time the
reset button is pressed it is counted and represented on the port LEDs as a binary
number with the port 1 LED as the least significant bit (see Table 1). Choose the
operation which you want to perform. If you miss the selection that you want, keep
pressing the button. The count starts over again once it reaches 7 (1111 binary).
4. Activate a Special Operation
To activate a selection, press and hold the reset button for at least four seconds. During
this time the rapid flashing of the port LEDs will stop. Once the rapid flashing resumes
you can release the reset button. The port LEDs will turn off indicating that the Special
Operations Mode has been activated.

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Table 3: Available Special Operations
Special Operation
Number of presses (and binary
representation)
Usage
Force port scanning to
first two ports
(Scanning runs until
current scanning delay
setting times out. Default
is 30 seconds).
ONE press
This forces the first two ports to RS-232
mode, causing the SCM to scan these ports
and thereby allowing access to the SCM (see
note below).
Force port scanning to all
ports.
(Scanning runs until the
SCM is entered or until
the unit is powered
down. There is no time
out).
TWO presses
This forces all ports to RS-232 mode,
therefore all ports are scanned for SCM use.
The Blue Heat/Net Sync will behave in the
same manner as an RS-232 only model (see
note below).
Restore factory default
settings
SEVEN presses
This restores the factory default settings for
ALL configuration parameters.
NOTE: Why would I need to force port scanning?
Some line interface settings are inappropriate for SCM use.
During boot up, the SCM scans only those ports set for RS-232
mode. If all of the ports are configured for another mode, (1/2
Duplex or Multi-drop) SCM port scanning is bypassed, and the
SCM application cannot be accessed. Use of either of the “Force
Port Scanning” operations outlined in Table 1 will force port
scanning to occur so the SCM application can be accessed.
Power On Diagnostics:
LED Error Codes
If an error is detected during the bootup process, an error condition and code are displayed on
the LEDs on the face of the Blue Heat/Net Sync.
•The error condition is signaled by a rapidly flashing CPU LED (about 10 to 20 per
second).
•The error code is displayed on Port LEDs 1 to 4 as a binary number.
Figure 11: LED Error Code Example

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In the above example, a rapidly flashing CPU LED during the boot up process signifies the Blue
Heat/Net Sync has experienced an error. Port LEDs 1 through 4 signify which error has
occurred. In this case, LED 2 and 3 are on, so the error code is 6. The chart below defines the
error details for each error code.
Table 4: LED Error Codes for Blue Heat/Net Sync
Error Code and Event
Details
Suggested Corrective
Action
1. Loader code in flash is erased.
The regions of flash memory which hold
the loader code are both erased. (There
are two redundant loaders in flash that
can be run).
This may occur in when
there are ESD
disturbances or in
electrically noisy
environments. If this error
persists it may be a
hardware issue.
Contact Connect Tech.
2. Loader code in flash has a bad CRC.
The regions of flash memory which hold
the loader code both have CRC errors.
(There are two redundant loaders in flash
that can be run).
See corrective action for
error code 1.
3. RAM copy of loader code has a bad
CRC.
The loader code is copied to RAM
before execution. This error is shown if
the RAM copy has a CRC error.
See corrective action for
error code 1.
4. Configuration Data Space (CDS) areas
have corrupted data (CRC failure).
The CDS is copied from flash to RAM
during the beginning of the loader code.
If a CRC error is detected in the RAM
copy, this error is shown.
See corrective action for
error code 1.

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5. Cannot obtain an operating system
image (uClinux) to run.
This will occur when any of the enabled
boot sources (flash or BOOTP/TFTP or
TFTP) fail to obtain a valid compressed
operating system image to run.
Check network
connections, server
computer or your unit's
settings.
This error occurs if TFTP
booting is enabled and the
Blue Heat/Net Sync
cannot download the file
from the server.
Contact Connect Tech if it
persists.
6. Unexpected return from the uClinux
operating system.
This error occurs if the operating system
returns back to the loader.
See corrective action for
error code 1.
7. CDS re-programming failure.
Certain CDS items are updated during
the bootup. If a failure occurs during the
re-programming of the flash, this error
will occur.
See corrective action for
error code 1.
8. Boot count could not be incremented
in flash memory
This error is usually caused by a Flash
memory failure.
Contact
Connect Tech.
9. No ports found
This message usually indicates a UART
component failure.
Contact
Connect Tech.