® DEFINITY Extender 1100 Switch Module System Administrator’s Guide 555-025-114 Comcode 108315268 Issue 1 June 1998
Copyright _ 1998, Lucent Technologies 555-025-114 All Rights Reserved Printed in USA Issue 1 June 1998 Notice Every effort was made to ensure that the information in this book was complete and accurate at the time of printing. However, information is subject to change.
Industry Canada (IC) Interference Information This digital apparatus does not exceed the Class B limits for radio noise emissions set out in the radio interference regulations of the Canadian Department of Communications. Le Présent Appareil Numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class B préscrites dans le reglement sur le brouillage radioélectrique édicté par le ministère le ministère des Industrie Canada.
Contents Customer Support Information .......................ix ■ ■ ■ ■ ■ ■ ■ Support Telephone Number...................................ix Security of Your System: Preventing Toll Fraud.............................................x Lucent Technologies Fraud Intervention.................xi Lucent Technologies Limited Warranty...................xii FCC Notification and Repair Information................xiii Installation and Operational Procedures.................
Contents 1 Introduction ..........................................................1-1 ■ ■ ■ 2 System Operation and Configuration.....................1-2 Equipment List..................................................1-4 Compatibility .....................................................1-5 Options .............................................................1-6 Specifications ........................................................1-6 Considerations.....................................................
Contents Considerations ..................................................2-12 Programming Passwords Procedure..................2-13 Configuring Passwords Online...........................2-15 Configuring the PBX COM RS-232D Port from the Remote Module ...........................2-15 3 Installation.................................................................. 3-1 ■ ■ ■ ■ ■ 4 Location Requirements...........................................3-2 Electrical Requirements ................................
Contents GL Glossary........................................................................
Figures 1 Introduction 1-1 3 System Configuration.......................................1-2 Installation 3-1 3-4 Switch Module Back Panel..............................3-4 RS-232D Cable Pin Connections......................
Tables 1 Introduction 1-1 3 Installation 3-1 4 Switch Module Specifications..........................1-8 DIP Switch Configuration .................................3-5 Troubleshooting 4-1 4-2 4-3 4-4 LED Power Up Sequences...............................4-4 LED Power Up Verification Sequences............4-5 Module LED Blink Sequence............................4-6 Error Messages................................................
Important Safety Instructions The exclamation point in an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of fire, electrical shock, and injury to persons when installing telephone equipment, always follow basic safety precautions including: ■ Read and understand all instructions.
Important Safety Instructions ■ Use only Lucent Technologies-recommended/approved DEFINITY ECS accessories. ■ Do not install this product near water, for example, in a wet basement location. ■ Do not overload wall outlets, as this can result in the risk of fire or electrical shock. ■ Do not attach the power supply cord to building surfaces. Do not allow anything to rest on the power cord. Do not locate this product where the cord will be abused by persons walking on it.
Customer Support Information Support Telephone Number In the USA only, Lucent Technologies provides a toll-tree customer Helpline (1 800 242-2121) 24 hours a day. If you need assistance when installing, programming, or using your system, call the Helpline, or your Lucent Technologies authorized representative. Outside the USA, if you need assistance when installing, programming, or using your system, contact your Lucent Technologies authorized representative.
Customer Support Information Security of Your System: Preventing Toll Fraud As a customer of new telephone equipment, you should be aware that there is an increasing problem of telephone toll fraud. Telephone toll fraud can occur in many forms, despite the numerous efforts of telephone companies and telephone equipment manufacturers to control it. Some individuals use electronic devices to prevent or falsify records of these calls.
Customer Support Information The DEFINITY Extender 1100 System, through proper administration, can help you reduce the risk of unauthorized persons gaining access to the network. However, telephone numbers and authorization codes can be compromised when overheard in a public location, lost through theft of a wallet or purse containing access information, or when treated carelessly (writing codes on a piece of paper and improperly discarding them).
Customer Support Information Lucent Technologies Limited Warranty Lucent Technologies Inc. warrants this equipment to be free of defects in materials and workmanship for a period of one year from date of shipment. All defects within this time will be repaired without charge upon notification of Lucent Technologies or its authorized reseller.
Customer Support Information FCC Notification and Repair Information This equipment is registered with the FCC in accordance with Part 68 of its rules. In compliance with those rules, you are advised of the following: ■ Means of Connection. Connection of this equipment to the telephone network shall be through a standard network interface jack, USOC RJ11C. These USOCs must be ordered from your telephone company. ■ Party Lines and Coin Telephones.
Customer Support Information ■ Ringer Equivalence Number (REN). The REN is used to determine the number of devices that can be connected to the telephone line. Excessive RENs on the line can result in the devices not ringing in response to an incoming call. In most, but not all, areas the sum of the RENs should not exceed five (5.0). The DEFINITY Extender 1100 System REN is 2. ■ Disconnection.
Customer Support Information ■ Changes at Local Telephone Company. Your local telephone company may make changes in its facilities, equipment, operations, or procedures that affect the proper functioning of this equipment. If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service. ■ New Network Area and Exchange Codes.
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About This Book Intended Audience This book is intended to help in the installation, system administration, and maintenance of the DEFINITY Extender 1100 System. It is intended for use as a reference by anyone needing such information, including system managers, support personnel, sales representatives, and account executives. It is also intended for technicians who are responsible for system installation, maintenance, and troubleshooting.
About This Book Terms and Conventions The DEFINITY Extender 1101 System is henceforth referred to as the “Remote Module.” The DEFINITY Extender 1100 System is henceforth referred to as the “Switch Module.” Throughout this document, toll fraud security hazards are indicated by an exclamation point inside a triangle and the words Security Alert. Security Alert: Security Alert indicates the presence of toll fraud security hazard.
About This Book Typographical Conventions Certain type fonts and styles act as visual cues to help you rapidly understand the information presented: Example Purpose Do not recycle old passwords. Italics indicate emphasis. If you do not want to disconnect, go to Step 3. Italics also tell you instructions about what to do next in a procedure. 2:OK 3:Next Italics indicate text that appears on the telephone display. Press the DROP button four times.
About This Book If you have problems with your Switch Module, contact your system administrator. If the problem can not be solved by the system operator, in the continental US, call our toll-free Helpline, available 24 hours a day, at 1 800 242-2121. Outside of the continental US, contact your Lucent Technologies representative or local Authorized Dealer.
About This Book Related Documents The documents listed below are part of the DEFINITY ECS documentation set. These documents can be ordered from the Lucent Technologies Publications Center. Call: Lucent Technologies Publications Center Voice 1 800 457-1235 Fax 1 800 457-1764 International Voice 765 361-5353 International Fax 765 361-5355 Write: Lucent Technologies Publications Center P.O.
About This Book Document No.
About This Book How to Comment on This Document We welcome your comments, both positive and negative. Please use the feedback form on the next page to let us know how we can continue to serve you.
FEEDBACK FORM DEFINITY Enterprise Communications Server (ECS) Title: DEFINITY Extender 1100 System Administrator’s Guide Document No.: 555-025-114 Issue: 1 Date: June 1998 1. Please rate the effectiveness of this book in the following areas: Excellent Good Fair Poor Not Applicable Ease of Use Clarity Completeness Accuracy Organization Appearance Examples Illustrations Overall Satisfaction 2.
Other _____________________________________________ 3. What did you like most about this book? 4. Feel free to write any comments below or on an attached sheet. If we may contact you about your comments, please complete the following: Name: Telephone Number: Company/Organization: Date: Address: Send completed forms to: Documentation Manager, Lucent Technologies, 211 Mount Airy Road, Room 2W-226, Basking Ridge, NJ 07920-2332. Fax: 908 953-6912.
Introduction 1 An overview of the functioning and specifications of the DEFINITY Extender 1100 System The DEFINITY Extender 1100 System enables DEFINITY Enterprise Communications Server (ECS) telephone users to be a fully functional part of the DEFINITY ECS telephone system with a digital telephone located any distance off-premise. The DEFINITY Extender 1100 System is transparent to the user and retains access to the features and functions of the DEFINITY ECS.
Introduction System Operation and Configuration The DEFINITY Extender 1100 System is designed for use with a DEFINITY ECS of Release 3, Version 3 or later. The DEFINITY Extender 1100/1101 System consists of two modules. One module, identified as the Switch Module, connects to your DEFINITY ECS. The other module, identified as the Remote Module, connects to your DEFINITY ECS telephone at your offpremise location. Figure 1-1 shows the DEFINITY Extender 1100/1101 System configuration. Figure 1-1.
Introduction The modules communicate via a single two-wire voice-grade circuit that can extend your DEFINITY ECS telephone to virtually unlimited distances. See “Specifications” later in this chapter for detailed circuit specifications. The Switch Module emulates your telephone, and the Remote Module emulates your DEFINITY ECS. Each module features a 56k Flex modem with V.34 compression for the transmission of all signals between the two modules.
Introduction Equipment List The Switch Module comes with most of the necessary equipment. However, some additional items are required. Switch Module Your Switch Module package should include: ■ One Switch Module (identified on the top of the unit) ■ One AC adapter ■ 7-ft. D2R line cord ■ 7-ft.
Introduction You must supply the following for installation: ■ DEFINITY ECS two-wire, 24-port TN-2224 circuit pack or the older TN2181. ■ Any additional DEFINITY ECS circuit packs needed (see the DEFINITY® Communications System Generic 3, Installation for Single-Carrier Cabinets manual, document #555-230-894, comcode #107595423, for further information). ■ An adapter to convert to 120 VAC if you are connecting the Switch Module to a 240 VAC outlet. ■ Power and central office line suppresser.
Introduction NOTES: 1. The Class B 8410DR which is identical to the 8410D but is FCC Class B for residential use. The CALLMASTER VI and the CALLMASTER IV are also FCC Class B. 2. The 6400 series telephones and the CALLMASTER VI require DEFINITY Release 3, Version 6 or later. Options You can order a wall-mounted metal bracket with a slide-in style sleeve for use with the Switch Module. Contact your Lucent Technologies representative for ordering information.
Introduction Connecting at rates greater than 19,200 over a lesser quality line will cause a high bit error rate which could result in breakups in the audio. A 19,200 connect rate is more than adequate to sustain proper audio quality and can be sustained on most line conditions. Any connect rate greater than 19,200 improves data performance through the RS-232D port of the DEFINITY Extender 1100/1101 Systems, but has no impact on voice quality.
Introduction Table 1-1. Switch Module Specifications Specification Description Size 8” x 8” x 1 ½” (205 mm x 205 mm x 40 mm) Weight 1.5 pounds (0.68 kilograms) Power Requirements 12 vdc supplied by 120 VAC adapters. 800 mA maximum Approvals UL CSA FCC Class A Communication Data Type V.34 compression Data Impedance 600 Ohms Data Tx Level –15 dBm (+1 dBm/–3 dBm) Data Rx Sensitivity –40 to 0 dBm User Data Port Data Type RS-232D Data Rate Setting 115.2 kbps, 57.6 kbps, 38.4 kbps, 19.
Introduction Considerations Keep the following in mind when you use the DEFINITY Extender 1100 System: ■ The DEFINITY Extender 1100 System is to be used with a DEFINITY ECS of Release 3, Version 3 or later. ■ No custom calling features, such as Call Waiting or Call Forwarding, should be ordered for the line to which you connect the Switch Module. NOTE: A Call Waiting tone causes an interruption in the call, and the DEFINITY Extender 1100 System will begin the reconnect sequence.
Introduction ! Security Alert: Using the Remote Module gains access to the features of the DEFINITY ECS, including access to WATS lines, FX lines, etc., which are subject to toll fraud. Passwords should be as long as allowed. Passwords should be hard to guess and therefore should not contain: ■ all the same numbers (for example, 88888888) ■ sequential characters (for example, 987654321) ■ character strings associated with you or with the remote user or with your business.
2 Configuration How the system administrator programs the passwords into the DEFINITY Extender 1100 System. Before a Remote Module user can communicate with the Switch Module, the system administrator must program a password for each remote user. Password Considerations Consider the following when programming the Switch Module: ■ Up to 100 passwords can be programmed into each Switch Module. ■ Only one Remote Module at a time can be “on-line” with an individual Switch Module.
Configuration ■ Each password begins with two digits (00–99). The 00 password is reserved for the system administrator and can be used to change any of the remaining passwords. Programming the Switch Module The Switch Module can be programmed using a terminal or while online from the Disconnect Menu of the remote telephone, if logged on as the System Administrator..
Configuration The Switch Module must be connected to the PC or terminal using an RS-232D serial cable, which connects to the RS-232D serial port on the module. Your terminal application should be configured for VT100 emulation.
Configuration The Enhanced Terminal Interface The Enhanced Terminal Interface (ETI) provides you with a userfriendly interface with which to configure your system when accessing the Switch Module through the serial port. The ETI menu is the default menu that appears after powering up your module and operates using VT100 terminal emulation. To access the configuration menu: 1. Plug in the Switch Module’s RS-232D serial port to a PC with a terminal application.
Configuration 3. Press the Enter key, or 1. The following menu is displayed on the screen: 1) Passwords 2) PBX COM port settings: 38.4 kbps N, 8, 1 3) Show Settings 4) Additional Modem Initialization 5) Software Upgrade* 6) Exit The Terminal Edit Line The Terminal Edit Line is where features can be entered or modified. When editing parameters on the terminal edit line, current parameters are highlighted if previously entered. The following edit line key strokes can be used to modify parameters.
Configuration You can select a menu item by: ■ Using a hot key (the number of the menu item). ■ Using the arrow up and arrow down keys. ■ Pressing the Enter key when your menu selection is highlighted. Although rare, you may find the display becomes unrecognizable on occasion. If this occurs, press CTRL R to refresh the display.
Configuration ■ Stop Bits Issue 1 June 1998 2-7
Configuration Setting Data Rate To set the Data Rate: Highlight the Data Rate you want and press Enter. Data Rate options are: 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, and 115.2 Kbps. OR Press the hot key of the data rate you want. When you make your selection, the Parity Menu appears. Setting Parity To change Parity: Highlight the Parity you want and press Enter. Parity options are None, Even or Odd. OR Press the hot key of the Parity you want. When you make your selection, the Data Bits Menu appears.
Configuration When you make your selection, the Stop Bits Menu appears. Setting Stop Bits To change Stop Bits: Highlight the Stop Bit format you want and press Enter. Stop Bit options are 1 or 2. You automatically return to the System Menu. Show Settings To display the current module settings: 1. Highlight Show Settings 2. Press Enter. All system settings are displayed. 3. Press any key to return to the System Menu.
Configuration Setting Passwords Before a Remote Module user can communicate with the Switch Module, the system administrator must program a password for each remote user. As a default, all passwords are disabled. Up to 100 passwords can be programmed into the Switch Module. This allows a number of different users to access the Switch Module at different times. However, only one Remote Module user can be connected to an individual Switch Module at any one time.
Configuration NOTE: If more than one Switch Module is connected to the DEFINITY ECS in a hunt group configuration, you should disable the remote users’ capability of changing passwords by setting the third digit at “9”. The reason for this action is that if the user changes a password, the change is stored only in the Switch Module to which the user is connected and not in all the Switch Modules in the hunt group.
Configuration ■ ■ character strings associated with you or with the remote user or with your business. These include: — Names — Birthdays — Business name — Telephone number — Social security number Words and commonly used names Passwords should be changed regularly, at least on a quarterly basis. Do not recycle old passwords. Considerations Consider the following when programming the Switch Module: ■ Up to 100 passwords can be programmed into each Switch Module.
Configuration ■ ! Each password begins with two digits (00–99). The “00” password is reserved for the system administrator and can be used to change any of the remaining passwords. Security Alert: Change your system administrator password as soon as possible, and store the new password in a secure place. Programming Passwords Procedure Follow these steps to program passwords for the Remote Module users: 1. If you are already in the DEFINITY Extender 1100 System programming menu, skip to Step 2.
Configuration 4. Type your system administrator password (the default is 00000000) and press Enter. The Password Menu is displayed. 5. Do one of the following: To check a password: 1. Select Display Password from the Password Menu, and press Enter. The system prompts you to enter the user’s two-digit user number. 2. Type the user’s two-digit user number, and press Enter. The user number and the password assigned are displayed. NOTE: You cannot display the Administrator Password (user 00).
Configuration To disable a password: 1. Select Change Password from the Password Menu, and press Enter. The system prompts you to enter the new password. 2. Enter the two-digit user number for the user whose password you want to disable, and press Enter. This action restricts the user’s access to the system. NOTE: The system administrator password cannot be disabled. If you enter 00, “Admin Password must be at least 8 digits long” is displayed. 3. Repeat for each password you want to disable.
Configuration 1. While online, press HOLD button four times. Disconnect is displayed. 2. Press 3 until screen displays Set PBX COM port. 3. Press 2 to change Switch Module parameters. Selections available are: Data Rate, Data Bits, Parity, and Stop Bits. NOTE: Refer to the DEFINITY Extender 1101 System manual for more information on how to configure the Switch Module’s COM port while online with the Remote Module.
Configuration Issue 1 June 1998 2-17
3 Installation How to install the DEFINITY Extender 1100 ystem After you have programmed passwords for the Switch Module, you can physically install it. Installing the Switch Module involves choosing a proper location and connecting the appropriate cables to the Telco line and PHONE/SWITCH jacks, and connecting power cord.
Installation Location Requirements To ensure successful operation of the DEFINITY Extender 1100 System, place the Switch Module within 500 feet (150 meters) of the DEFINITY ECS. The Switch Module may be mounted in any position or may be wall-mounted by using the optional wall-mount bracket. Install the module’s AC power adapter or power supply and cabling away from high-power/high-RF noise devices such as computers, fans, fluorescent ballasts, and power supplies.
Installation Wiring Requirements Use twisted-pair cable for all connections. NOTE: Before attaching your DEFINITY Extender 1100 System to the DEFINITY ECS, do the following: Administer the telephone that will be used at the remote location. Connect an identical model telephone to the DEFINITY ECS port that will be used for connecting to the Switch Module. Test that the telephones work as intended.
Installation ■ RS-232D provides for simultaneous RS-232D communication between equipment at the off-premise site and the on-premise site. ■ The DIP switch under Option Switch is used for system configuration. ■ The connection for the AC adapter is +12VDC. Telco Line Phone/Switch RS232 Option Switch +12VDC Figure 3-1.
Installation Following installation, administer the line and station ports that use the Switch Module according to the instructions in DEFINITY® Communications System Generic 3 Implementation Guide, Issue 1, document #555-230-655. Follow these steps to install the Switch Module: 1. Ensure that the module has the proper DIP switch configuration (see Table 3-1). Table 3-1.
Installation ! CAUTION: Connecting the Remote Module to the DEFINITY ECS can result in damage to the module. Prior to installation, check that you have the Switch Module by looking at the name on the top of the unit. 2. Connect the wiring of the DEFINITY analog circuit pack (the 8port TN742 or the 16-port TN746) or a dedicated central office line (provided only with this connection) with the TELCO LINE jack of the Switch module at the on-premise location.
Installation ! CAUTION: Do not plug the A/C adapters into a 240 VAC outlet because you will damage the adapter and the module. You must first obtain an adapter to convert 240 VAC to 120 VAC. 5. If applicable, administer the line and station ports by using the procedures in the DEFINITY® Communications System Generic 3 Implementation Guide, Issue 1, document #555-230655.
Installation The data settings for the Switch Module’s COM port and the Remote Module’s COM port must be the same. The factory settings of the Switch Module’s COM port are the following: Data rate – 38.4 kbps Data bits – 8 Parity – None Stop bits - 1 NOTE: For more information on RS-232D, please refer to the Glossary. Female Connector on Module DCD 1 DSR 6 CTS 8 DTR 4 RXO 2 TXI 3 GND 5 RTS 7 Figure 3-2.
Installation Hardware Flow Control The Switch and Remote Modules use the CTS line for flow control. If the hardware flow control is not enabled on the PC, or if a cable without the CTS line connected is used, characters can be lost when the buffer is full. NOTE: The DEFINITY Extender 1100 System uses the CTS lead for flow control. When the internal buffer is 1024 characters from full, the CTS lead is turned off.
Installation 3-10 Issue 1 June 1998
Troubleshooting 4 Troubleshooting and LED Activity As with all equipment of a sophisticated nature, occasionally an error in connection or transmission may occur. The DEFINITY Extender 1100 System provides indication of any errors via lightemitting diodes (LEDs) on the Remote and Switch Modules and by error messages on the display telephone connected to the Remote Module.
Troubleshooting Troubleshooting When an error occurs in the operation of the Switch Module, you should check for malfunctions in an organized manner. Follow these steps when troubleshooting the Switch Module: 1. Check all interconnecting cables to ensure that they are properly seated. 2. Verify that the DIP switches are set correctly. 3. Check the circuits to ensure that they are free of noise and meet the specifications listed in Chapter 1, Introduction. 4.
Troubleshooting If you must contact Lucent Technologies on behalf of the remote user, be sure to obtain the serial number found on the Remote Module. LED Sequences The LEDs on the Switch Module help to indicate problems that occur. During the power-up sequence, the DEFINITY Extender 1100 System performs a self-test, indicated by a sequence of 1 yellow, and 8 red flashes, followed by 1 green flash, fast blinking red flashes for about 6 seconds, 3 green flashes and 1 red flash.
Troubleshooting Table 4-1. LED Power up Sequences LED Sequence Description No LED blinks Error with hardware or AC adapter. First blink: LED is not functioning properly as units should blink Yellow. Red or Green Yellow EPROM Checksum test failed. Faulty EPROM or Board problem.
Troubleshooting Table 4-2. LED Power up Verification Sequences LED Sequence Description Rapidly blinking Red during process and then 1 Green to indicate process is complete. 6 - 10 seconds. FLASH code is being verified and if valid will be executed. 15-25 seconds FLASH code is invalid EPROM code copied to FLASH. 3 Reds or 3 Greens followed by a Red. Red - Running EPROM code, FLASH write failed. Contact Helpline. Green - FLASH load passed, running FLASH code.
Troubleshooting Table 4-3 shows the LED flashes that may occur on the Switch Module after the power-up LED sequence. Table 4-3. Module LED Blink Sequence LED Sequence Meaning G Module is online to a Remote Module; no abnormalities have been detected. GG Module is in COD (Call on Demand) waiting mode; no abnormalities have been detected. GGG Module is idle and waiting for connect sequence; no abnormalities have been detected. R DSP is off-line. Try to power cycle the module.
Troubleshooting RGRG Switch Module has been “Flagged” by remote user.
Troubleshooting Error Messages If a problem has been encountered during the connection process, an error message appears on the remote telephone. Table 4-4 shows the error messages and the suggested actions to take. Table 4-4. Error Messages Message Cause Action No Dial Tone The Remote Module is not properly connected to the local telephone company. Connect a regular telephone to the telephone CO line jack, and listen for dial tone.
Troubleshooting Table 4-4. Error Messages—Continued Message Cause Action No Answer The Switch Module is not responding. The Remote Module does not receive a RingBack Tone or an Answer Back Tone. Verify that the correct telephone number has been programmed. Verify that the Switch Module is connected to the line.
Troubleshooting Specific Problems Problems may develop with the DEFINITY Extender 1100 System when connecting. The problems that may occur with Switch Modules are listed with their solutions after each problem’s heading. No Display on Telephone at Remote Location To correct this problem, answer or do the following: 1. Is the correct module at each location? 2. If this is an existing installation, has the installation moved or has any new wiring been done? Verify the connections. 3.
Troubleshooting 3. Check the LED on the Switch Module and compare it to the LED diagnostic sheet as in Table 4-1. The Switch Module may be defective. 4. Check that the DIP switches on the Switch and Remote Modules are set properly. Unless your system administrator tells you otherwise, all of the DIP switches should be OFF. 5. Have there been any electrical storms that may have popped the line fuses? 6. Go on-line and monitor call progress on the Remote Module speaker. 7.
Troubleshooting Reporting a Faulty Switch Module In a hunt group operation with multiple Switch Modules being used by different remote users, it may be beneficial to flag a particular Switch Module that has operational problems; audio quality issues (cut outs or breakup), connection problems or poor analog line (high 135A stat count, Frame Check sum errors). If a user is experiencing such problems, they may contact the system administrator who can instruct the user to “Flag” the bad switch module.
Troubleshooting Issue 1 June 1998 4-13
Glossary +12 vdc 12 volt direct current. 120 VAC 120 volt alternating current (North American standard electrical supply). B Baud Rate The speed in kbps at which digital data can be transmitted.
Glossary D Dedicated Subscriber Lines Communication lines (usually twisted pair) that are used to connect onpremise telephone equipment (such as a PBX) to the Central Office. Also referred to as direct lines. Dial Line A telephone line which is part of the Public Switched Telephone Network and is accessed through the DEFINITY Extender 1100 System’s automatic dial-up function. F Facility Transmission facilities.
Glossary L LED Light-emitting diode. A semiconductor diode which emits light when a current is passed through it, indicating that the power is on. O On-premise Lines Communication lines (usually twisted-pair) that are used to connect the DEFINITY ECS to the DEFINITY ECS telephone. P PBX Private Branch Exchange.
Glossary R Remote Module The DEFINITY Extender 1100 System that connects to the remote DEFINITY ECS telephone. RS-232D (EIA/TIA-574 Interface Circuits) While the EIA/TIA-574 is the actual jack used, the RS-232D is used for the ease of communication.
Glossary 9 Position Non-Synchronous Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data InterchangeANS/EIA/TIA-574-90) (Sept., 1990) S Switch Module The DEFINITY Extender 1100 System that connects to the DEFINITY PBX.
Glossary GL-6 Issue 1 June 1998
