CTI Products NCB-IM with Internal PSTN Modem User Manual
Model NCB/IM
Network Combiner Module
with Internal Modem
Wide Area Router for LONWORKS® Networks
User Guide # S2-60419-310
68-10822-310
CTI Products, Inc. NCB/IM User Guide
Standard Limited Hardware Warranty
LIMITED WARRANTY. Equipment manufactured by CTI Products, Inc. is warranted to be free from defects in material and workmanship for
a period of ONE (1) YEAR from date of shipment to original purchaser. Under this warranty, our obligation is limited to repairing or replacing
any equipment proved to be defective by our inspection within one year of sale to the original purchaser. This warranty shall not apply to
equipment which has been repaired outside our plant in any way, so as to, in the judgment of CTI Products, Inc. affect its stability or reliability,
nor which has been operated in a manner exceeding its specifications, nor which has been altered, defaced, or damaged by lightning.
CUSTOMER REMEDIES. In the event of a defect, malfunction, or failure to conform to specifications established by the seller during the
period shown, the customer shall call CTI Products, Inc. to obtain a Return Authorization Number and return the product or module, shipping and
insurance prepaid. CTI Products, Inc., will then at its option, either repair or replace the product or module and return it, shipping prepaid, or
refund the purchase price thereof. On-site labor at the purchaser's location is not included in this warranty.
EQUIPMENT NOT MANUFACTURED BY CTI Products, Inc. Equipment not manufactured by CTI Products, Inc. is excluded from this
warranty, but is subject to the warranty provided by its manufacturer, a copy of which will be supplied to you upon specific written request.
NO OTHER WARRANTIES. The foregoing constitutes the sole and exclusive remedy of the buyer and exclusive liability of CTI Products,
Inc., AND IS IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUTORY AS TO
MERCHANTABILITY, FITNESS FOR PURPOSE SOLD, DESCRIPTION, QUALITY, PRODUCTIVENESS OR ANY OTHER MATTER.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES. WITHOUT LIMITING THE FOREGOING, IN NO EVENT SHALL CTI
PRODUCTS, INC. OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION,
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE CTI
PRODUCTS, INC. EQUIPMENT BY PURCHASER OR OTHER THIRD PARTY, WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), INDEMNITY, PRODUCT LIABILITY OR OTHERWISE, EVEN IF CTI PRODUCTS, INC. HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSSES. IN NO EVENT SHALL CTI PRODUCTS, INC.’S, LIABILITY
EXCEED THE TOTAL AMOUNT PAID BY PURCHASER FOR THE EQUIPMENT GIVING RISE TO SUCH LIABILITY.
Location: CTI Products, Inc
Phone: +1.513.595.5900
Fax: +1.513.595.5983
Web: www.ctiproducts.com
E-mail, Sales: info@ctiproducts.com
Technical Support: lwsupport@ctiproducts.com
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1211 West Sharon Road
Cincinnati, OH 45240 USA
CTI Products, Inc. NCB/IM User Guide
This manual covers NCB units of Revision 300 or higher and NCB/Plug software revision
1.00 or higher. The NCB Unit Revision can be found on the rear of the unit following the
letter “U”. The NCB/Plug software revision can be found on the Help/About screen of the
program. If the revision of the product in hand is greater than that shown above, there may
be additional features supported by the product that are not covered in this manual.
Information contained in this document is subject to change without notice and does not represent a commitment on the part of CTI
Products, Inc.
No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying
and recording, for any purpose without the written permission of CTI Products, Inc.
This manual describes products which include copyrighted CTI Products, Inc. computer programs in semiconductor memory. CTI
Products, Inc. reserves all rights for these programs, including the exclusive right to copy or reproduce the copyrighted computer programs
in any form. No copyrighted computer program contained in products described in this manual may be copied, reproduced, decompiled,
disassembled, or reversed engineered in any manner without express written permission of CTI Products, Inc. The purchase of products
from CTI Products, Inc. shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents, or patent applications of CTI Products, Inc., except for the normal non-exclusive, royalty fee license to use that arises
by operation of law in the sale of the product.
Copyright (c) 1995-2001 CTI Products, Inc. All rights reserved
NCB, NCB/IM, and WON are trademarks of CTI Products, Inc.
Echelon, LON, LONWORKS, LONTALK, and Neuron are U.S. registered trademarks of Echelon Corporation.
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CTI Products, Inc. NCB/IM User Guide
Radio Frequency Emissions and Immunity
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his own expense. Changes or modifications to this unit not expressly
approved by the party responsible for compliance could void the user’s authority to operate the equipment. Limits specified in the standards listed
below are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
UNITED STATES: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules.
CANADA: This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
EUROPE: This equipment has been tested and found to comform with the following standards: EN60950, EN50082-1, IEC801-2, IEC801-3,
IEC801-4, and EN55022. This equipment complies with the requirements of the following directives: Low Voltage Directive 73/23/EEC, EMC
Directive 89/336/EEC, and 93/68/EEC Harmonization of CE Marking
FCC Notices:
1. The Federal Communications Commission (FCC) has established Rules which permit this device to be directly connected to the telephone
network. Standardized jacks are used for these connections. This equipment should not be used on party lines or coin lines.
2. If this device is malfunctioning, it may also be causing harm to the telephone network; this device should be disconnected until the source
of the problem can be determined and until repair has been made. If this is not done, the telephone company may temporarily disconnect
service.
3. The telephone company may make changes in its technical operations and procedures; if such changes affect the compatibility or use of this
device, the telephone company is required to give adequate notice of the changes. You will be advised of your right to file a complaint with
the FCC.
4. If the telephone company requests information on what equipment is connected to their lines, inform them of:
a. The telephone number this unit is connected to c. The USOC jack required
b. The ringer equivalence number d. The FCC Registration Number
Items ‘b’ and ‘d’ are indicated on the label.
The Ringer Equivalence Number (REN) is used to determine how many devices can be connected to your telephone line. In most areas, the
sum of the RENs of all devices on any one line should not exceed five (5.0). If too many devices are attached, they may not ring properly.
WARNING: This device must only be attached to a private line using a JM8 connector.
Industry Canada (IC) Notices:
EQUIPMENT ATTACHMENT LIMITATIONS
NOTICE: The Canadian Industry Canada label identifies certified equipment. This certification means that the equipment meets
certain telecommunications network protective, operational and safety requirements. The Department does not guarantee the
equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local
telecommunications company. The equipment must also be installed using an acceptable method of connection. The customer should
be aware that compliance with the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company
cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal
metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.
Caution: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or
electrician, as appropriate.
The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which
is used by the device, to prevent overloading. The termination on a loop may consist of any combination of devices subject only to the
requirement that the total of the Load Numbers of all the devices does not exceed 100.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
CAUTIONS:
- Never install telephone wiring during a lightning storm.
- Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
- Never touch uninsulated telephone wiring or terminals unless the telephone line has been disconnected at the network interface.
- Use caution when installing or modifying telephone lines.
BABT Notice:
Although this equipment can use either loop disconnect or DTMF signalling, only the performance of the DTMF signalling is subject to
regulatory requirements for correct operation. It is therefore strongly recommended that the equipment is set to use DTMF signalling for access
to public or private emergency services. DTMF signalling also provides faster call set up.
iii
CTI Products, Inc. NCB/IM User Guide
TABLE OF CONTENTS
QUICK-START GUIDE ............................................................................................................................................. 1
1. INTRODUCTION ................................................................................................................................................... 3
WHAT IS AN NCB/IM UNIT? ...................................................................................................................................... 3
REFERENCE DOCUMENTS ........................................................................................................................................... 5
FRONT PANEL ............................................................................................................................................................. 6
2. SETUP AND OPERATION .................................................................................................................................... 9
STEP 1. MOUNTING .................................................................................................................................................... 9
STEP 2. SWITCH SETUP .............................................................................................................................................. 9
STEP 3. ELECTRICAL CONNECTIONS ........................................................................................................................ 11
STEP 4. IMPLEMENTATION IN A NETWORK ............................................................................................................... 13
STEP 5. CONTROLLING THE WAN CONNECTION...................................................................................................... 16
3. NETWORK VARIABLE (NV) CONTROL ....................................................................................................... 17
TYPICAL NV BINDINGS ............................................................................................................................................ 17
MODEM CONTROLLER OBJECT ................................................................................................................................. 18
TELEPHONE DIRECTORY OBJECT .............................................................................................................................. 24
GLOBAL CONTROL OBJECT ...................................................................................................................................... 25
4. NCB/PLUG CONFIGURATION PLUG-IN ....................................................................................................... 27
INSTALLATION .......................................................................................................................................................... 27
ACCESSING NCB/PLUG .......................................................................................................................................... 28
USAGE ................................................................ ................................ ................................................................ ...... 28
APPENDIX ................................................................................................................................................................ 31
APPENDIX A. FACTORY DEFAULT CONFIGURATION ................................................................................................. 31
APPENDIX B. MOUNTING OPTIONS ........................................................................................................................... 33
APPENDIX C. CONNECTOR DETAILS ......................................................................................................................... 36
APPENDIX D. NCB VERSION COMPARISON .............................................................................................................. 39
APPENDIX E. TROUBLESHOOTING ................................................................ ............................................................ 40
APPENDIX F. SPECIFICATIONS .................................................................................................................................. 45
APPENDIX G. MODEM NOTES ................................................................................................................................... 46
INDEX ........................................................................................................................................................................ 49
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CTI Products, Inc. NCB/IM User Guide
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CTI Products, Inc. NCB/IM User Guide
QUICK-START GUIDE
This Quick Start Guide provides a concise series of steps to get a pair of the NCB modules “up and running”
quickly so that initial operation may be confirmed.
It is important that all LONWORKS devices attached to the “NETWORK” connector of any one NCB module
use the same network transceiver . See “LONWORKS NETWORK TRANSCEIVERS” in section “1.
INTRODUCTION”.
In the following steps, identify the two units as “NCB Unit 1” and “NCB Unit 2”.
Switch Settings
For use in Dial-up mode, set the OPTION A switches on both NCB units as follows:
Switches 1 through 4 and 6 through 8 : UP
Switch 5 : DOWN
For use in 2-wire Leased-Line mode, set the OPTION A switches as follows:
Switch 1 : DOWN on NCB Unit 1 and UP on NCB Unit 2
Switches 2, 5 and 7 : DOWN
Switches 3, 4, 6 and 8 : UP
Module Connection
Connect LONWORKS network devices to the “NETWORK” connectors of each NCB unit (both RJ45s
and the terminal strip are in parallel). If using the RJ45 connector(s), connect to pins 1 & 2 (the rightmost two pins) and use caution, as other pins on these connectors carry DC power.
If using Dial-up mode, connect the “LINE” connector of each NCB unit to a standard analog
telephone line using the telephone cables supplied with the NCB modules. If using Leased-Line mode,
connect the “LINE” connectors on each NCB together using one of the telephone cords provided with
the NCB modules.
If optional handsets were included with the NCB units, connect one to the “AUDIO” connector of each
NCB.
Connect power to the NCB units via the front panel “DC IN” connector.
If using dial-up mode, the NCB units are ready to be given a dialing command. Proceed directly to
“Step 4. Implementation in a Network”in section “2. SETUP AND OPERATION”.
If using Leased-Line mode, the “OH“ LED will light on both NCB units and the modems will
automatically begin the training sequence. If optional handsets are connected, the training process can
be monitored with them. Within 10 seconds, the “CD” LEDs on both NCB units will light, indicating
a successful connection. The modules are now ready for use. Any LonTalk packets entering one NCB
unit will exit the other and vice-versa. Disconnecting, then re-connecting the telephone cable will
cause the connection to be dropped, then automatically re-established.
NOTE: If using Leased-Line mode, this quickstart setup includes connecting the NCBs
“back-to-back” using 2 wire mode and a reduced transmit level. In an actual leased-line
installation involving longer telephone cable lengths, change OPTION A Switch 7 to UP to
configure the NCB’s modem to output full transmit power, and set OPTION A Switch 8 UP
for 2-wire mode or DOWN for 4-wire mode.
Quick-Start Guide 1
CTI Products, Inc. NCB/IM User Guide
Quick-Start Guide 2
CTI Products, Inc. NCB/IM User Guide
CA-80070-100
LONWORKS
NODE
LONWORKS
NODE
LONWORKS
NODE
LONWORKS
NODE
NCB
LONWORKS
NODE
LONWORKS
NODE
LONWORKS
NODE
LONWORKS
NODE
NCB
STANDARD
VOICE GRADE
CIRCUIT
BUILDING 1
BUILDING 2
Read this
section to learn
the general
function and
capabilities of an
NCB Router
1. INTRODUCTION
WHAT IS AN NCB/IM UNIT?
The Network Combiner NCB/IMTM Module is a wide-area router with an internal
modem for LonWorks networks. The NCB/IM unit is used in pairs to connect
LONWORKS networks real-time, spanning distances from building-wide to
worldwide. The communication channel spanning the distance between local
networks can be any analog or digitized analog channel that is capable of
carrying V.32 terbo standard modem signaling, including standard dial-up Public
Switched Telephone Network (PSTN) circuits, 2-wire or 4-wire leased lines, microwave channels, PBX
circuits, etc. Data transfer between distant networks via an NCB module pair is "live", delayed only by the
transit time through the routers and modem connections.
The NCB module uses router technology so that no custom coding or additional hardware is necessary to
seamlessly connect multiple networks across very large distances. The NCB module is self-contained, easily
configured with standard network management tools, and requires no custom programming or coding changes
in system nodes.
The NCB/IM unit contains Modem Controller and Telephone Directory objects.
Basic Application
A basic application of the NCB module is where two multi-node LONWORKS networks, separated by a distance
beyond the reach of conventional wired media, need to be interconnected, as in Figure 1. This distance could be
across a large building, business campus, city, etc. Using the NCB module, this interconnection is
accomplished using one NCB module local to each network site and a single voice-grade telephone circuit
connecting the two NCB modules. Additional networks can be added to this unified network by simply adding
an NCB module pair per network.
Figure 1 Networks in two buildings connected with NCB modules
LONWORKS Network Transceivers
The local LONWORKS networks at different sites do not need to use the same network transceiver type. For
example, an FTT-10A network, a TPT/XF-78 network, and a PLT-22 network can all be interconnected by
using pairs of NCB modules with network transceivers matching the local network at each site.
1. Introduction 3
CTI Products, Inc. NCB/IM User Guide
LONWORKS
NETWORK
Side
A
ROUTER
LONWORKS
TRANSCEIVER
“DC IN”
Connector
“NETWORK”
Connector
“AUDIO”
Connector
“LINE”
Connector
To TELCO
CIRCUIT
Side
B
SMX
TRANSCEIVER
POWER
SUPPLY
CONTROL
NEURON
PROCESSOR
INTERNAL
MODEM
To
HANDSET
NCB units are available with an option for LONWORKS network transceiver type. The ordering code on the rear
of the NCB lists the installed options. This ordering code is of the form: NCB/IM-Txxx-xx, where ‘T’
indicates the transceiver type.
The following LONWORKS network transceiver options are available:
A = FTT-10A K = SMX RS485
B = TPT/XF-78 M = SMX PL22
C = TPT/XF-1250 X = None (SMX ready)
Line Port
The internal modem in the NCB/IM module uses proven V.32 terbo modulation, transferring data at 19,200 bits
per second. Dial-up as well as 2-wire and 4-wire leased lines are supported.
The internal modem is unique in its ability to transfer voice simultaneous to data using only a single voice-grade
circuit between two NCB modules. This bidirectional voice channel exists between each NCB module pair and
is accessible via the “AUDIO” connector on the NCB module. This live voice feature can be used in any
application that requires live data as well as voice communication between personnel or equipment at separate
sites.
Data Flow
There are three sources of message packets within the NCB module. The first source is the LONWORKS
NETWORK connector on the front of the unit. The second is the Telco “LINE” connector on the front of the
unit. The third source is the Control Neuron Processor. Message packets originating from any of these
sources are sent to the other two. This message packet flow is shown in the block diagram of Figure 2.
Figure 2 NCB Network Combiner Block Diagram
The “NETWORK” connector attaches to the local LONWORKS network using a compatible transceiver
internal to the NCB module and is associated with Side B of the internal router.
The “LINE” connector attaches to the telephone circuit as the link to the NCB unit at the other network site
and is associated with Side A of the internal router.
The Control Neuron Processor allows network management messages to be sent to the NCB module for
connection control and status monitoring and is associated with Side A of the internal router.
1. Introduction 4
CTI Products, Inc. NCB/IM User Guide
Document
Source
Reference Number
Message Buffer Configuration
CD ROM or www.ctiproducts.com
Technical Note TN010
Using Explicit Messages to
Configure and Monitor Dialing
Parameters of an NCB
CD ROM or www.ctiproducts.com
Technical Note TN022
Using NCBCON to Configure
and Monitor Dialing
Parameters of an NCB
CD ROM or www.ctiproducts.com
Technical Note TN023
Setting the PCNSS Card to
Network Interface Mode
CD ROM or www.ctiproducts.com
Technical Note TN024
SMX Transceiver Installation
CD ROM or www.ctiproducts.com
Technical Note TN025
NCB Installation with Network
Management Tools
CD ROM or www.ctiproducts.com
Technical Note TN026
LONWORKS Router User’s
Guide
Echelon
078-0018-01B
Router Function
The router contained in each NCB module may be configured as a repeater, bridge, or configured router. The
easiest configuration is as a repeater, where all messages which enter the NCB module (via any of the three data
sources described above) are simply passed to the other two sources, regardless of the domain, subnet/node, or
group destination address. A bridge only passes messages that match one of the two domain IDs configured on
the router. A configured router only passes messages that match a domain ID as well as a set of subnet or group
numbers. The proper choice of router mode depends on desired simplicity of installation versus required
system performance.
REFERENCE DOCUMENTS
The following additional information is available from the sources indicated.
1. Introduction 5
CTI Products, Inc. NCB/IM User Guide
1234567
8
ON
OPTION A
DC IN
ERR
ACT
PWR
NETWORK
OUT
IN
RSVC
CSVC
AUDIO
LINECDOH
RESET
CMD
NCB
NETWORK COMBINER
NETWORK
PWR LED Indicates correct input power
ERR LED Indicates an error condition
ACT LED Indicates LonWorks packet
activity in router
LonWorks NETWORK Connections
RJ45 and Screw Terminal
DC IN Connector for input power
AUDIO Connector Simultaneous Voice/Data
CD LED Carrier Detected and
training sequence
completed
OH LED Off Hook condition
LINE Connector Telco connection
RESET Button
CMD Button Temporarily enables Auto-
Answer mode (see below)
CSVC Button Initiates Service Request
from Control Neuron
RSVC Button Initiates Service Request
from Router
OPTION A Switches
Selects Internal Modem
and LonWorks Addressing
parameters.
(See Setup and
Operation for more detail)
FRONT PANEL
Figure 3 NCB/IM Module Front Panel
Front Panel Indicators and Buttons
PWR LED (Green) - Indicates condition of DC input power or a “Wink” command.
Always On: Correct DC input power is present.
Flashing Continuously: DC input to module is below minimum required voltage.
Flashes for 2 Seconds: A “Wink” network management command has been sent to the Control
Neuron Processor.
ERR LED (Red) – Indicates a possible error condition.
Always On: A diagnostic error has been detected. Press the “RESET” button. If the “ERR” LED now
stays off, the EEPROM contained invalid data and has been reinitialized. Any non-volatile
information must be re-entered by using the NCB/Plug configuration plug-in or the DOS NCBCON
program. If the LED stays on solid, a hardware problem is indicated. Contact technical support for
assistance.
Slow Flash: (once per second) LONWORKS configuration information is insufficient. Using a
Network Management Tool, re-commission the internal router nodes (and optionally, the Control
Neuron Processor node).
ACT LED (Yellow) - Indicates a packet has been passed by the NCB router.
OH LED (Green) - Indicates the modem is OffHook.
CD LED (Yellow) - Indicates the modem has detected carrier and completed the training sequence with the
distant modem.
1. Introduction 6
CTI Products, Inc. NCB/IM User Guide
CMD Button
This button can be used to temporarily enable the Auto Answer function in Dial-up mode. This is useful if
Auto Answer mode has been inadvertently disabled on a remote NCB. When this occurs, and a connection with
this remote unit is broken, it will no longer automatically answer an incoming call. To re-enable Auto Answer
mode, proceed as follows:
Press and hold the “CMD” button on the remote NCB
Press and release the “RESET” button on the remote NCB.
Wait until the “PWR” LED begins to flash on the remote NCB, then release the “CMD” button.
These steps will temporarily enable Auto Answer mode for the remote NCB for one incoming call. Use the
NCB/Plug configuration plug-in, NCBCON, or explicit messages to re-enable Auto Answer mode for future
connections.
1. Introduction 7
CTI Products, Inc. NCB/IM User Guide
1. Introduction 8
CTI Products, Inc. NCB/IM User Guide
1234567
8
ON
1.
2.
3. Not Used
4. Not Used
5. Control Neuron Addressing Method....... Hardware Network Management Tool
6. Control Neuron Hardware Subnet/Node 255/2 255/1
7. Leased-Line Transmit Level .................. -10dBm (Normal) -16dBm (Back-to-back)
8. Leased-Line Wiring................................2-Wire 4-Wire
UP DOWN
Modem Mode
Modem Mode Switch: 1 2
Dial-up: Auto Answer Enabled UP UP
Dial-up: Auto Answer Disabled DN UP
Leased-Line: Answer UP DN
Leased-Line: Originate DN DN
See Appendix B
for Mounting
Option details.
Follow the steps
in this section to
setup an NCB
Router for the
first time
2. SETUP AND OPERATION
STEP 1. MOUNTING
Non-slip rubber feet are included on all NCB modules to allow them to
conveniently rest on any horizontal surface. Four 6-32 threaded holes are also
available on the bottom of the module to allow bolting of the module in any
convenient orientation. WARNING: Care should be taken to limit protrusion
of the screw into the module to no more than 0.125 inch from the module bottom surface!
Mounting kits are available as options to allow wall or rack (19” EIA) mounting
of the NCB module.
When wall or rack mounting the NCB, a suitable safety and protective earth
ground should be provided to the metal enclosure. The protective earth ground
provides a path to ground for electrostatic discharge (ESD) energy. This
connection is most conveniently made directly to the wall mount bracket or rack plate.
STEP 2. SWITCH SETUP
OPTION A Switches
OPTION A switches set the internal modem configuration (switches 1, 2, 7, and 8), and LONWORKS
addressing parameters (switches 5 and 6). Leave the unused switches (3 and 4) in the UP position. The
position of the OPTION A switches are read by the NCB at module power-up or after pressing the “RESET”
button on the front panel.
2. Setup and Operation 9
CTI Products, Inc. NCB/IM User Guide
Which Modem Mode should be used?
Leased-Line Mode
This is the simplest mode as long as a permanently connected
(non-switched) leased telephone line is available. After power-
up or reset, an NCB in ‘Leased-Line: Originate’ mode will
immediately attempt to connect with an NCB in ‘Leased-
Line:Answer’ mode on the line. If the connection is lost, the
process repeats.
Manual Dial-Up Mode
This mode uses a switched telephone line and requires
command information be sent to the NCB that will initiate a
dial sequence. This command information is sent in the form
of Network Variables or Explicit Messages. After receipt of a
dialing command, the NCB will attempt to connect with the
NCB connected to the specified phone number. When the
NCB being dialed detects an incoming ring, a connection will
be established. Command information must also be sent to
disconnect after transmission of all messages is complete.
Perpetual Dial-Up Mode
This mode simulates the constant connection of a Leased-Line,
but uses a switched Dial-Up line. The NCB initiating a call
must have the phone number of another NCB stored internally.
This can be accomplished with the NCB/Plug plug-in or the
DOS NCBCON program. The connection will be attempted
whenever the link does not exist.
See “APPENDIX G. MODEM NOTES” for more details.
Tutorial . . .
?
Setting the Internal Modem Configuration (Switches 1, 2, 7, and 8)
Will a Dial-Up line be
used for this Network?
If Manual or Perpetual
Dial-up Mode is
required, see “DIAL-UP
CIRCUITS” following in
this section.
If using a leased
telephone line, see
“LEASED-LINE
CIRCUITS” following in
this section.
Dial-Up Circuits (OPTION A Switch 2, UP)
1) OPTION A Switch 2 must be in the UP position for dial-up operation (Manual or Perpetual
mode). In dial-up mode, switches 7 and 8 are ignored.
2) For an NCB to be capable of both originating and answering a call, Auto-Answer must be
enabled (OPTION A Switch 1, UP). To only originate calls, Auto-Answer should be disabled
(OPTION A, Switch 1, DOWN).
Note: with OPTION A Switch 5 DOWN (see below), OPTION A Switch 1 is ignored. In this
case, Auto-Answer mode is enabled/disabled by Network Variables or the NCB/Plug plug-in.
Leased-Line Circuits (OPTION A Switch 2, DOWN)
1) When using Leased-Line circuits, one NCB must be in ‘Leased-Line: Originate’ mode, and
the other NCB must be in ‘Leased-Line: Answer’ mode. (It does not matter which NCB
module is in which mode).
Note: With OPTION A Switch 2 DOWN (to enable Leased-Line modem mode), the AutoAnswer enable/disable setting using Network Variables or the NCB/Plug plug-in is ignored.
2. Setup and Operation 10
CTI Products, Inc. NCB/IM User Guide
NETWORK
OUT
IN
NETWORK
See Appendix C
for Connector
Details
2) OPTION A Switch 7 is used to set the transmit level from the modem and should be normally
left in the UP position. If two NCB units are to be connected “back-to-back” in Leased-Line
mode with only a short cable between the “LINE” connector on each unit (in lab test
situations, for instance), Switch 7 must be set to the DOWN position in order for the two
modems to connect properly.
3) OPTION A Switch 8 should be set to match the type of leased telephone line being connected
: 2-wire or 4-wire.
Setting the LONWORKS Addressing Parameters (Switches 5 and 6)
Switches 5 and 6 provide a simple (but very limited) method of setting the LONWORKS domain/subnet/node
address of the internal Control Neuron Processor. This method is useful for systems with two NCB modules,
but does not provide enough flexibility for larger systems. (Standard Network Management Tools are a much
better choice.) For more information on setting this address, see “STEP 4. IMPLEMENTATION IN A NETWORK”
for a tutorial on network management tools.
If OPTION A Switch 5 is UP, Switch 6 determines a static subnet/node address for the Control Neuron
Processor: Switch 6 DOWN fixes the Control Neuron Processor subnet/node address at 255/1 in the
zero-length domain, while Switch 6 UP fixes the subnet/node address at 255/2 in the zero-length
domain. This setting allows for a quick evaluation of the NCB modules, requiring minimal user setup.
If OPTION A Switch 5 is DOWN, dynamic determination of the domain/subnet/node number by a
Network Management Tool is allowed.
STEP 3. ELECTRICAL CONNECTIONS
LONWORKS Network Connection
The local LONWORKS network must be attached to the NCB module via the “NETWORK” connector following
standard Echelon guidelines as to cable type, cable length, and termination appropriate for the selected
transceiver.
The dual RJ45 “NETWORK” connector allows a
daisy-chained network connection method, as the
network pins of the two RJ45 connector are directly
paralleled. Note that other pins on the RJ45 are
connected to circuit ground and DC power.
The 2 pin removable terminal strip is wired in parallel with the network connections
on the dual RJ45 connector.
NOTE: If your NCB module was purchased without a LONWORKS transceiver (SMX-ready),
refer to Technical Note TN025 to install your SMX transceiver.
2. Setup and Operation 11
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