Teltone DS-108-A-02 User manual

Brand: Teltone

Model: DS-108-A-02

Type: User manual

This manual is also suitable for

DS-104

InfoLink Data Switch

DS-104 and DS-108

Product Manual

40-400-00022, Rev. B

Note

This manual covers Models DS-104-A-02 and DS-108-A-02.

Trademarks

Teltone is a registered trademark of Teltone Corporation.

Windows is a registered trademark of Microsoft Corporation.

Other company and product names may be trademarks or

registered trademarks of their respective owners.

Teltone Corporation

Bothell, Washington 98021 USA

Customer Service: 425-951-3388

Technical Support: 425-951-3390

Fax: 425-487-2288

Email: [email protected]

Website: www.teltone.com

40-400-00022 Rev. B 1

Contents

U.S. FCC Compliance Information .................................................................................................... 2

Chapter 1 - General Description ....................................................................................................... 3

Chapter 2 - Getting Started............................................................................................................... 4

Using this manual ...................................................................................................................... 4

DS-100 Package........................................................................................................................ 5

Chapter 3 - Overview ........................................................................................................................ 6

User Ports .................................................................................................................................. 6

Local Maintenance Port ............................................................................................................. 6

Incoming Traffic.......................................................................................................................... 6

Remote Programming................................................................................................................ 6

Routing Commands ................................................................................................................... 6

Emergency Interrupt Input ......................................................................................................... 7

No Priority .................................................................................................................................. 7

Total Priority ............................................................................................................................... 7

Data Routing.............................................................................................................................. 7

Transfer Data Connection to Another User Port ........................................................................ 7

Outgoing Traffic, Data Switch Idle..............................................................................................7

Outgoing Traffic, Data Switch Active.......................................................................................... 8

Disconnect Procedure ............................................................................................................... 8

Data Transfer Inactivity Time-out ...............................................................................................8

Loss of Power ............................................................................................................................ 8

Version 2.00 Upgrade ................................................................................................................ 8

Chapter 4 - Typical Applications ....................................................................................................... 9

Figure 1 Single Stand Alone Configuration .............................................................................. 9

Figure 2 Cascade Configuration............................................................................................. 10

Figure 3 System Configuration with SLSS and DS-100 ......................................................... 11

Figure 4 System Configuration with CIUS and DS-100.......................................................... 12

Figure 5 System Configuration with CIUS, SLSS and DS-100............................................... 12

Chapter 5 - Installation.................................................................................................................... 13

Figure 6 System Installation ....................................................................................................14

Chapter 6 - Programming and Default Settings .............................................................................. 15

Programming Rules ................................................................................................................. 15

Programming Access............................................................................................................... 15

Modem Configuration .............................................................................................................. 16

Detailed Programming Information .......................................................................................... 17

Chapter 7 - DS-100 Flash ROM Upgrade Procedures ................................................................... 32

How to download from the Web Site:....................................................................................... 32

Loading the software into the DS-100. .................................................................................... 32

Chapter 8 - Front Panel Indicators and Controls ............................................................................ 36

Power/ Status LED................................................................................................................... 36

Alarm LED ............................................................................................................................... 36

Modem Port Transmit and Receive LEDs ................................................................................ 36

User Port Indicator LEDs ......................................................................................................... 36

Chapter 9 - Connectors and Terminal Strips................................................................................... 37

Figure 7 Front and Rear Panels ............................................................................................. 37

Chapter 10 - Data Retention........................................................................................................... 38

Programming Verification......................................................................................................... 38

Factory and Customer Defined Default Settings ..................................................................... 38

Chapter 11 - Warranty and Service ................................................................................................ 39

Warranty Information ............................................................................................................... 39

Technical Support .................................................................................................................... 39

Return Procedures .................................................................................................................. 39

Appendix 1 - Ordering Information ................................................................................................. 40

Appendix 2 - Specifications ............................................................................................................ 41

Electrical .................................................................................................................................. 41

Mechanical............................................................................................................................... 41

Environmental .......................................................................................................................... 42

Regulatory ............................................................................................................................... 42

Appendix 3 - Glossary .................................................................................................................... 43

Index ............................................................................................................................................... 46

2 40-400-00022 Rev. B

U.S. FCC Compliance Information

Part 15 Class A Notice: 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. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commer-

cial environment. 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 interfer-

ence at his own expense.

40-400-00022 Rev. B 3

Chapter 1 - General Description

The Teltone DS-100 Series Data Switch allows users to communicate with

up to 64 Intelligent Electronic Devices (IEDs) through a single, RS-232 serial

connection. The DS-100 is available in 4 and 8 port versions and has been

designed to be operated independently or as part of a distribution automation

system. The unit has been engineered to withstand the rigors of substation

and other hazardous environments, meeting IEEE C37.901-1989SWC surge

withstand capability and FCC Part 15 Class A requirements for use in

industrial/business applications.

The DS-100's ability to communicate with multiple IEDs from a single origi-

nating call, results in real time savings when several IEDs must be polled at

the same time. The unit has been designed to work in conjunction with the

family of Teltone Line Sharing Switches and Cellular Interface Units. This

allows users to use each device in a stand alone mode, or together in a

system configuration.

Depending on the application, some users will find it more cost effective to

install the DS-100 with one modem situated in front of the unit instead of

putting a modem in front of each IED. This also simplifies potential protocol

conflicts where different manufacturers' modems are used with different IEDs

requiring unique modem register settings. The DS-100 series also supplies

±12 VDC output terminals, providing convenient power access for external

12 VDC powered modems and ±12 VDC for fiber isolators.

The DS-100 has a wide power input operating range between 42 to 150 VDC

or 90 to 120 VAC.

Product upgrades will become available periodically. The operation of the

DS-100 allows for upgrades using an Internal Flash ROM. Review Chapters

2 and 7 for more details.

4 40-400-00022 Rev. B

Chapter 2 - Getting Started

Using this manual

This reference manual provides the user/installer with step-by-step instruc-

tions for installing and programming the DS-100. Take time to familiarize

yourself with this manual. This will make the installation process go more

smoothly.

The following is a brief description of the chapters in this manual.

Chapter 1 - General Description

Chapter 2 - Getting Started

Chapter 3 - Overview

This section describes how the DS-100 works.

Chapter 4 - Typical Applications

This section contains diagrams showing some typical applications using the

DS-100.

Chapter 5 - Installation

This section describes how to rack mount the DS-100, connect the DS-100

to power, and connect other equipment to the DS-100.

Chapter 6 - Programming and Default Settings

This section describes the default settings, as well as how to program the

DS-100 through menu commands.

Chapter 7 - DS-100 Flash ROM Upgrade Procedures

Describes how to download EEPROM upgrade to the DS-100 using different

applications.

Chapter 8 - Front Panel and Indicator Controls

Explains LED status conditions.

Chapter 9 - Connectors and Terminal Strips

Describes each connection on the front and rear panel of the DS-100.

Chapter 10 - Data Retention

How data is stored in the DS-100.

Chapter 11 - Warranty and Service

What to do in the event you have a defective unit.

40-400-00022 Rev. B 5

Appendix 1 - Ordering Information

Appendix 2- Specifications

Electrical, mechanical, environmental, and regulatory specifications.

Appendix 3 - Glossary

Explains terminology mentioned in this manual.

Index.

DS-100 Package

Unpack the DS-100 and verify that you have received the following:

• DS-100 unit

• Modem installation kit, which includes 2 fastening pads and a modem

cable.

• Hardware installation kit, which includes a spare fuse, mounting brack-

ets, screws, and washers.

If any of these items are damaged or missing, contact Teltone Corporation

Customer Service department. See Chapter 11, Warranty and Service

chapter for further information.

6 40-400-00022 Rev. B

Chapter 3 - Overview

User Ports

The four or eight DCE User ports will support between 300 - 38,400 bps

asynchronous data transmission rates.

Local Maintenance Port

The Local Maintenance port accepts a terminal or terminal emulator. No

password is required for programming access through this port. Program-

ming access will be a lower priority process than any ongoing data transfer.

Incoming Traffic

Incoming traffic to the DS-100 is answered by the modem which must be

configured for auto-answer. The DS-100 looks for DCD (carrier detect) from

the modem to know that a call has been received. It then starts monitoring

the data from the modem for a system password (if one is programmed)

followed by a transfer code. By default, there is no access password.

Remote Programming

Remote programming access can be performed through the Modem input

port. A transfer code sent to this port will access programming mode by

sending “ab0” where “ab” is the default code. Any initial remote access to the

menu via the Modem port will require (in default configuration) a program-

ming password, with “teltone” being the default password. Once access is

gained, an inactivity timer will terminate programming connection after a

programmable (default=3) number of minutes of no activity.

Routing Commands

The DS-100 monitors the data flow into the Modem port for data switch

commands. To enter a command, there must be a pause in the data stream

into the Modem port, followed by a 3-character command string, followed by

another pause in data. All commands are 3 characters in length, and all 3

characters must be entered within a 2 second period. The minimum length

for the pauses before and after the command string are user programmable

from 0.1 to 2.0 seconds, in 0.1 second increments.

If the string is not a valid command, pauses too short, or the 3 characters are

not entered within a 2 second period, the string will be forwarded to the

currently selected User port. If the string is a valid command, it is not

forwarded to the User port.

The DS-100 recognizes the following commands:

ab0 Connects to maintenance menus for remote configuration

ab1 thru ab8 Connects the Modem port to the selected User port

ab? Reports which User port is currently connected to the

Modem port

The “ab” prefix for the commands is user programmable.

40-400-00022 Rev. B 7

Emergency Interrupt Input

When an AC or DC voltage is applied to this input, located on the rear panel,

the unit will terminate an on-going transfer by dropping DTR to the modem

port. The unit sends a configuration string to the modem to prepare it for the

next call. The configuration string is user programmable. The Interrupt

feature is disabled in the factory default setting. It allows the user a means to

remotely abort a lengthy data transfer when another operation is desired.

Users can apply DC voltage through auxiliary relay on “B” version of

Teltone’s Substation Line Sharing Switch, (SLSS - must be on another

central office line), through a SCADA system or other intelligent device.

No Priority

In this mode, no port will be able to interrupt a data transfer on another port.

No Priority is the default factory setting.

Total Priority

In this mode, User Port 1 is the highest priority port. If another User port is

active, its activity will be terminated to allow User port 1’s request to be

serviced. User port 2 has the second highest port priority. User port 8 has

the lowest priority. When a higher priority port interrupts a data transfer, the

unit will not initiate any action to reestablish the original transfer.

Data Routing

Incoming traffic is initiated when the DS-100 sees carrier detect go active on

the Modem input port. When incoming traffic arrives at the modem port,

(modem must be configured for auto-answer) the unit may expect to receive

an access password followed by a routing command (transfer code). If the

command is successful, the modem port will be logically connected to the

specified User port. The modem can be programmed from the Local Mainte-

nance port.

Transfer Data Connection to Another User Port

When there is a pause in data flow into the Modem port, the unit will monitor

the next set of characters to see if they are a valid data switch command. If

the string is valid and of correct length, the Modem port will be logically

connected to the newly selected User port. If the string is not valid, the unit

will forward the string to the currently selected User port. The required

pause duration is programmable in 0.1 second increments. Factory default is

>1.0 second.

Outgoing Traffic, Data Switch Idle

The unit expects either DTR or RTS to go active as a request for service.

The unit is programmable to select which of these signal(s) will be consid-

ered a request for service. The unit will respond by logically connecting the

requesting device to the Modem port.

8 40-400-00022 Rev. B

Outgoing Traffic, Data Switch Active

If there is a request for service and the unit is set to No Priority default, and

the unit is active on another User port, the unit will not respond to the request

until it is idle. If the unit is set for Total Priority, and a higher priority port

requests service, the unit will abort the current transfer, drop DTR to the

Modem port, and wait until the Modem port is ready for a new transfer.

When the unit is ready to support the next call, it will logically connect to the

Modem port.

Disconnect Procedure

Incoming calls are disconnected when DCD goes inactive on the Modem

input port. Outgoing calls are disconnected when DTR or RTS (whichever

was used to originate the call) goes inactive. When either the Modem input

port or active User port has their control lines go inactive, the unit will go idle.

Data Transfer Inactivity Time-out

The Data Transfer Inactivity time-out can be set between 1 and 10 minutes in

1 minute intervals. The default time-out is 3 minutes. The user can also

program the unit for no activity time-out.

Loss of Power

The unit will be totally inoperative when powered down. The only output will

be an alarm contact closure.

Version 2.00 Upgrade

The Version 2.00 upgrade adds the following features:

• expanded modem initialization string from 25 to 50 characters

• up to 64 port expansion using a single transfer code (cascading)

• site Sign On message operation

• case sensitive transfer code operation

• default port operaton

• port rollover operation

• reconnect to last accessed port operation

• port time-out alarm enable/disable

AC Power

Teltone part numbers 250-00204-05 (DS-104) and 250-00204-06 (DS-108)

and later are properly labeled for 90 - 120 VAC power use. Earlier models

are also able to operate with AC power, but are not correctly labeled. Refer to

Figure 7 for AC connections.

40-400-00022 Rev. B 9

Chapter 4 - Typical Applications

Electric utilities are continually searching for ways to lower operating costs,

improve efficiencies, and provide better customer service. Various distribu-

tion automation techniques are quickly being introduced and embraced. This

is causing a proliferation of IEDs, such as electronic meters, relays and

digital fault recorders to be installed into electrical substations. Due to

different IED manufacturers using different protocols, communicating with

these devices can be difficult. In addition, if an analog telephone line is used

as the primary communication link, each IED requires its own modem to

convert from an analog signal to a digital one.

Figure 1 Single Stand Alone Configuration

To avoid the expense of using multiple modems, a user can install the DS-

100 in front of the IEDs:

10 40-400-00022 Rev. B

Figure 2 Cascade Configuration

The user can have up to 64 connections by connecting up to 8 DS-100 units

behind a primary DS-100:

40-400-00022 Rev. B 11

Figure 3 System Configuration with SLSS and DS-100

The DS-100 has been designed to work in conjunction with the Teltone family

of Line Sharing Switches and Cellular Interface Units. Depending on the

application, a combination of these devices can provide an efficient, cost

effective system solution.

If telephone service is needed or desired, users can install the Teltone Sub-

station Line Sharing Switch (SLSS) and modem in front of the DS-100. This

configuration enables users to communicate with multiple IEDs through the

DS-100, saving on multiple modem expense while providing cost saving

phone service:

12 40-400-00022 Rev. B

Figure 4 System Configuration with CIUS and DS-100

If cellular service is needed or desired, users can install Teltone’s Cellular

Interface Unit for Substations (CIUS) and cellular modem in conjunction with

the DS-100. This allows users to take advantage of low cost, reliable, easily

installed cellular communications as a medium between their host/ polling

location and their IEDs:

Figure 5 System Configuration with CIUS, SLSS and DS-100

If users have a need or desire to use a single cellular circuit for voice and

data to communicate with multiple IEDs, the user can combine Teltone’s

CIUS, SLSS and DS-100. This provides a cost competitive, easily installed

and reliable distribution automation system solution:

40-400-00022 Rev. B 13

Chapter 5 - Installation

1. If rack mounting, attach the mounting ears to both sides of the DS-100

using the enclosed screws. Unit will fit in either a 19" or 23" rack and can be

flush or center mounted.

2. Position unit into rack, aligning mounting ear holes with rack holes.

Secure unit into place by affixing screws with corresponding washers.

3. To power the modem (not ncluded) from the DS-100, insert the bayonet

end of the modem power cable into the modem. Assuming your modem

operates off 12 VDC, insert the ribbed or marked lead into the “+12V” termi-

nal. (You may want to test the polarity of the modem power leads before

connecting.) Insert the other lead into the ground terminal marked, “GND”.

Fiber optic isolators normally used the +12 VDC and -12 VDC connections.

*NOTE* The -12 VDC connection is NOT recommended for powering modem

installations.

4. Connect the modem to the DS-100 by attaching a DB-25 male to DB-9

female RS- 232 cable, not included, to the DB-9 male Modem port on the

back of the unit.

5. Attach an RJ-11 modular cable between the modem and the PSTN or

communications device. (i.e. SLSS, CIUS or phone line.)

6. Connect a DB-9 male RS-232 cable, not included, into one of the User

ports. (Figure 6 depicts connections to User ports 1 and 2.) Connect the

other end of the cable’s DB-9 female connector to your IED. Connect the

remaining User ports to other IEDs in a similar fashion.

7. Remove the yellow terminal block cover and apply power to the DS-100

by connecting the power cable from your substation power source (42-150

VDC or 90-120 VAC at 60 Hz) to the unit’s power terminals marked “+” and

“-”. When connecting to DC power, make sure you connect the “+” power

cable lead to the “+” terminal and the “-” power cable lead to the “-” terminal.

Next, connect the chassis ground marked “GND” as specified by local

practices. Replace terminal block cover when finished.

8. If the user wants to utilize the Emergency Interrupt feature, connect wire

leads into the Emergency Interrupt terminals. Connect the other wire end to a

switched AC or DC power source. (The Teltone SLSS auxiliary relay may be

used for this application.)

9. If the user wants to utilize the Remote Alarm feature, connect wire leads

to terminal connections marked “ALRMS”. The alarm contacts close during

an alarm.

10. Connect a terminal or PC, loaded with a communications software

program to the Local Maintenance port located on the front of the unit using

a DB-25F to DB-9M adapter (if required) and a DB-9F to DB-9M RS-232

cable (not included).

11. Open the communication software program. Set the communication port

to match the DS-100 Factory Default settings (unless you have changed

them.)

14 40-400-00022 Rev. B

The Factory Default settings are:

* 300 to 9600 (autobaud)

* 8 data bits

* 1 stop bit

* No parity

Once you have set up your software press <ENTER> several times and the

Main Menu should appear.

12. This should conclude the installation process. If further programming is

required, refer to Chapter 6 , Programming and Default Settings chapter.

Figure 6 System Installation

Note: There are four cable ties located on the back of the unit for securing

cables. Use them to avoid loose connections.

40-400-00022 Rev. B 15

Chapter 6 - Programming and Default Settings

The DS-100 has extensive programming capability providing flexibility to

meet most application configurations.

Users can move to the desired menu by entering the number corresponding

to the menu item and pressing <ENTER>. Once the user reprograms

systems and User port configurations, they may be saved as Customer

Defined Defaults under menu item “6.”

Programming Rules

• “Select entry” is the normal response after the screen has been updated.

Entering any menu number will bring up that menu.

• Pressing <ENTER> at the “select entry” prompt will redisplay the main

menu.

• Pressing <ENTER> will accept the current value.

• After completing any program change, verify the setting changes.

• Any changes to the unit should be saved as Customer Defined Defaults

under menu item 6.

• Upgrades to the system firmware are completed using menu item 7.

• Any command completed with <ENTER> before a power outage or

disconnect, will be saved. Any other partial entry will be lost.

• For no changes to any request, <ENTER> may be used to accept the

default value of “N”.

Programming Access

Passwords

The DS-100 has two different passwords. The first password is upon initial

access to the Modem input port, and prevents the DS-100 from any routing

until the password is entered. The default for this is no password (disabled.)

If an access password is enabled, enter the password followed by

<ENTER>.

The second password is after sending the “ab0” command to access remote

programming. The default for this password is “teltone” (password is case

sensitive.)

By using the two password schemes, the DS-100 can be configured for open

access to routing, while still protecting programming access, or protecting

both routing and programming access.

Three invalid password attempts will result in an alarm and access will be

blocked for 1 hour.

16 40-400-00022 Rev. B

Local Programming

The front panel Local Maintenance connector accepts a terminal or terminal

emulator. The terminal should be set for

300

9600 baud, 8 data bits

stop bit

, with

no parity

. No password is required for programming access

through this port. Press <ENTER> 2 or 3 times in rapid succession to bring

up the Main Menu.

Remote Programming

Remote programming access can be performed through the Modem port.

Any initial access to the unit via the Modem port may require a user access

password, dependent upon whether password security has been enabled.

Once the user has entered the password, if needed, the Modem port of the

unit may be remotely accessed by sending “ab0” where “ab” is the default or

user programmed 2 byte code, then entering the programming password, if

enabled. Factory default setting is enabled with the password “teltone”.

Modem Configuration

The DS-100 sends a user programmable configuration string to the modem

whenever power is applied to the DS-100, whenever the Local Maintenance

menu is exited, and between calls through the DS-100. If the unit is idle, the

string is also sent every ten minutes to ensure that the modem is properly

configured. If power is removed from the modem during maintenance of the

system, it is recommended that the user enter and then exit the Maintenance

Menu from the local port after power is restored to ensure that the modem is

properly configured.

For the DS-100 to handle incoming calls, the modem must be configured for

auto answer.

The following pages will review the programming menu

items in detail.

SITE NAME: (0-16 CHARACTERS) VERSION: 2.00F *Note*

Alarm: Inactive

0. REDISPLAY MAIN MENU

1. SYSTEM CONFIGURATION

2. PORT CONFIGURATION

3. REPORTS

4. DIAGNOSTICS

5. RESET UNIT TO DEFAULTS

6. SAVE ACTIVE CONFIGURATION AS USER DEFAULTS

7. FLASH EEPROM CONFIGURATION

99. Exit

*NOTE*

Version will have an F suffix if FLASH ROM is update

1. SYSTEM CONFIGURATION

20. SYSTEM PASSWORD

40-400-00022 Rev. B 17

21. SITE NAME & SIGN ON MESSAGE

22. PROGRAMMING PASSWORD

23. PROGRAMMING TIME-OUT

24. TRANSFER CODE CONFIGURATION

25. DATA INACTIVITY TIME-OUT

26. EMERGENCY INTERRUPT

27. OUTGOING CALL PRIORITY

2. PORT CONFIGURATION

40. MODEM PORT

41. PORT 1

42. PORT 2

43. PORT 3

44. PORT 4

45. PORT 5

46. PORT 6

47. PORT 7

48. PORT 8

49. LOCAL MAINTENANCE PORT

50. DEFAULT PORT

51. LAST PORT RECONNECT

52. PORT ROLLOVER

3. REPORTS

60. SYSTEM CONFIGURATION REPORT

61. ALARM REPORT

4. DIAGNOSTICS

80. SET ALARM

81. CLEAR ALARM

82. TIME-OUT ALARM ENABLE

83. PORT LOOPBACK TEST

84. CONTROL LEAD CHECK

85. CONNECT TO MODEM PORT

86. CONNECT TO USER PORT

87. FORCE CONNECTION FROM MODEM PORT TO USER PORT

5. RESET UNIT TO DEFAULTS

6. SAVE ACTIVE CONFIGURATION AS USER DEFAULTS

7. FLASH EEPROM CONFIGURATION

99. EXIT

Detailed Programming Information

If prompted for a Y/N response and Y is used, the parameters to change the

function selected will be displayed. If N or <ENTER> is used, a new prompt,

Select entry > will be displayed. For no changes to any request, <ENTER>

may be used to accept the default value. If <ENTER> is used when Select

entry > is displayed, the Main Menu will be displayed.

1. SYSTEM CONFIGURATION

The SYSTEM PASSWORD is by default configured with NO password. This

18 40-400-00022 Rev. B

feature is used for additional security when needed. When a password is

installed, an incoming call to the Modem port will prompt the caller for the

System Password and if entered correctly, the caller will then have access to

the User ports. If three invalid attempts are made, an alarm will be set and

access to the DS-100 will be blocked for 1 hour.

The SITE NAME & SIGN-ON MESSAGE is by default set to “None”. This

feature allows for a message to be displayed during the initial call in as either

no message, the site name, or a detailed sign-on message that will display

the site name along with all of the transfer codes to access the User Ports.

The PROGRAMMING PASSWORD is by default set to “teltone”. This

feature allows for controlled access to the programmable features of the DS-

100.

The PROGRAMMING INACTIVITY TIME-OUT is by default set to 3 minutes.

This feature sets the maximum idle time for programming before the DS-100

drops out of the programming mode.

The TRANSFER CODE CONFIGURATION is a group of commands that

allow the configuration of the Transfer Code Prefix (the string sent along with

the port number to access the User Port), Case Sensitivity (accept upper

and lower case entries), Response (enable a response when a valid Transfer

Code is entered), Guard Time (the time before and after a Transfer Code that

defines it as a Transfer Code), and Broadcast (send the incoming data to all

ports until a response is seen) settings.

The DATA INACTIVITY TIME-OUT is by default set to “3” minutes. This

feature sets the maximum amount of time that a user is allowed to be con-

nected to a User Port without any data being sent in either direction.

The EMERGENCY INTERRUPT ENABLE is by default set to “Disable”.

This feature is used when external control of the DS-100 is used. The

hardware input on the rear panel allows for the ability to terminate an existing

call by dropping DTR to the Modem Port.

The OUTGOING CALL PRIORITY is by default set to “Disable”. This

feature allows for a higher priority port to interrupt an existing data connec-

tion and allow the priority port’s request to be serviced. Port priority is set

with 1 being the highest priority and 8 being the lowest priority.

The following text is a representation of what a user would see when pro-

gramming the DS-100.

Select entry > 20

SYSTEM PASSWORD *Note*

Password:

Prompt: Enabled

Change? (Y/N)_ if answered Y, then

SYSTEM PASSWORD

10 characters maximum

Current Value:

New Value (enter password, or <SPACE> to clear): 123aBc4567

**Note**

PASSWORD PROMPT (enter number)

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Model: DS-108-A-02

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