ISDN Network Termination (NT1) Installation Guide
Fourth Edition (March 2001) 203-077-04 Eicon is either a registered trademarks or trademark of Eicon Networks Corporation. Changes are periodically made to the information herein; these changes will be incorporated into new editions of the publication. Eicon Networks may make improvements and/or changes in the products and/or programs described in this publication at any time. A Product Comment Form is provided at the back of this publication.
Table of Contents Introduction ............................................................................ 4 Setting up the ISDN NT1 ....................................................... 4 Understanding the Signal Lights ............................................ 7 Appendix A: Illustrated Scenarios ......................................... 8 Appendix B: Pin Assignments ............................................... 9 Appendix C: Switches .........................................................
Introduction The Eicon Networks ISDN NT1 is a compact network termination device for connecting data terminal equipment to an Integrated Services Digital Network (ISDN). The NT1 provides an interface port without the need for a specialized interface cable. You can connect ISDN devices to the NT1 through two S/T interface ports. This installation guide describes how to set up the NT1 and connect your devices to it.
Note: The table uses metric measurements. The equivalent imperial measures are: 75 m (250 ft), 150 m (500 ft), 900 m (3000 ft).
For example, if you determined that row #3 describes how you will be using the NT1, set switches 1, 3, and 5 to the OFF position (up), and set switches 2 and 4 to the ON position (down). Note that these switch settings reflect both the termination value and the distance of other ISDN devices from the NT1. This is why, for example, row #2 and row #3 have different switch settings, even though the NT1 termination value for both is 100 Ω.
Understanding the Signal Lights The three lights (LEDs) on the front panel of the NT1 provide information about the status of the NT1 and the ISDN line. L-BK LINE PWR Figure 3. Signal Lights Table 2 explains the significance of each light. Light L-BK State Off On LINE On Flashes 8 times PWR Flashes once per second Off On Off Explanation Normal. Your ISDN service provider is conducting a loopback test. The S/T and U interfaces are not active. The NT1 is trying to activate the U-interface link.
Appendix A: Illustrated Scenarios Find the illustration which matches how you plan to use the Eicon NT1, then consult the appropriate row in Table 1 on page 5 to find the required settings for the NT1 and for your other ISDN devices. Row #1 and #2: One device up to 75 meters from the NT1. NT1 Up to 75 Figure 4. One device up to 75 meters from the NT1 Row #3: One device up 75 to 900 meters from the NT1, without an EiconCard attached. NT1 Up to 900 meters Figure 5.
Appendix B: Pin Assignments Pin assignments for each port are given below. S/T interface Ports Each port consists of an RJ-45 connector with the pin assignments listed in Table 3. Pin 3 4 5 6 Function RX+ TX+ TXRX- Table 3. RJ-45 Pin Connector Assignments U-Interface Port The U-interface port consists of an RJ-45 connector with the pin assignments listed in Table 4. Pin 4 5 Function TIP RING Table 4.
Appendix C: Switches The significance of each switch on the rear panel of the ISDN NT1 is given in Table 6. Value No termination Termination of 50 Ω Termination of 100 Ω Devices located less than 75 m from the ISDN NT1 Devices located more than 75 m from the ISDN NT1 Switch Positions 1 2 3 off off off on on on off on off 4 off on on 5 on off Table 6. Significance of the Switches Technical Specifications Safety • Use with a certified Class 2 power supply.
International Regulatory Information Regulatory Information for the USA: Declaration of Conformity We: Eicon Networks Corporation 2155 Chenault Drive, Suite 503 Carrollton, Texas USA 75006 1-800-80-EICON (972) 417-5500 Fax: (972) 417-5610 Declare under our sole legal responsibility that the products listed below to which this declaration relates, are in conformity with Part 15 of the FCC Rules.
FCC Part 68 Notice This unit complies with Part 68 of the FCC rules. On the bottom of this equipment is a label that contains, among other information, the FCC registration number. If requested, this information must be provided to the telephone company. An FCC compliant telephone cord and modular plug is provided with this equipment, designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant.
For their own protection, users should ensure that any electrical ground connections of the power utility, telephone lines and internal metallic water pipe system are connected together. This precaution is particularly important in rural areas. Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate. This Class B digital apparatus complies with Canadian ICES-003.
Limited Warranty Eicon Networks Corporation warrants to the original purchaser of this Eicon Networks Product that it is to be in good working order for a period of five (5) years from the date of purchase from Eicon Networks or an authorized Eicon Networks dealer.
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