AT&T MERLIN COMMUNICATIONS SYSTEM INSTALLATION GUIDE: MODEL 820 ®
Table of Contents Page Introduction 2 Preparing the Network Interface Extend the Network Interface to the Jack Field Test the Outside Lines 3 7 9 13 Installing the Control Unit Position the Control Unit Insert the Modules and Cartridges Connect the Control Unit to the AC Outlet Connect the Outside Lines to the Control Unit 14 14 15 16 17 Voice Terminal Wiring Jack Field Connection Direct Connection 18 19 20 Connecting the Voice Terminals Prepare the Voice Terminals Connect Each Voice Terminal to th
Introduction This installation guide tells you how to install and test your MERLIN ® communications system, Model 820. It leads you step by step through system installation, from a pre-installation checklist to system tests. You should perform the steps in the order in which they are presented because many of the earlier steps prepare the system for the later steps. When you complete the steps in this guide, you will be ready to customize the system to meet the needs of your business.
Getting Started This guide assumes the tasks on the following list have been completed. Review the list carefully. If you have not completed the tasks on the list, you should do so now. ● Check the items in your shipment against your copy of the order form. Make sure the items and quantities agree. Save the instructions that come with each component, and also keep the packing boxes just in case you have to return components under warranty. ● Get acquainted with the system environment.
● Become familiar with the MERLIN system. Review the drawing of a simple MERLIN system configuration, opposite page, and note how components are related to one another. 1 The control unit and the cartridges and modules it contains provide the power and the intelligence for all voice terminals and accessories. 2 Modular jumper cords connect the control unit to jacks in the jack field. 3 The jack field serve as an interface between the control unit and the building wiring.
10 9 8 1 Control Unit 2 Modular jumper cord 3 Jack field 4 Building wiring AC outlet Line cord 7 Voice terminal 6 Modular voice terminal cord 5 Modular wall jack Network Interface 5
● You must also have a network interface that links your system to the local telephone company’s lines. A telephone company representative should have installed the necessary outside telephone lines and labeled the network interface to indicate the telephone number for each outside line. Depending on the type of interface provided by the telephone company, your system may require additional wiring running from the network interface to the jack field.
Preparing the Network Interface The local telephone company should have installed a network interface with 1-line jacks (RJ11-type), 2-line jacks (RJ14-type), or a multiline connector (RJ21-type) for connecting your MERLIN system to your outside telephone lines. The drawing, right, shows the three types of interfaces and the 2-line adapter (267C) for the 2-line network interface jack. The table, on page 8, tells you what to do next depending on the type of network interface you have.
If the Network Interface has a 1-line jack (RJ11-type) for each outside line has 2-line jacks (RJ14-type) for the outside lines has a 50-pin connector (RJ21-type) carrying the outside lines 8 And Do This each jack is labeled with its telephone number Go on to “Test the Outside Lines,” page 13. each jack is not labeled with its telephone number 1. Label each jack with its telephone number from the list provided by the local telephone company. 2. Go on to “Test the Outside Lines,” page 13.
EXTEND THE NETWORK INTERFACE TO THE JACK FIELD You need the following to extend the network interface to the jack field: ● 4-line adapter If you have more than four outside lines, you need two 4-line adapters. ● Jack panel box ● Green-on-white label sheet ● Single-ended 25-pair connectorized cable The drawing, right, shows a 4-line adapter (Z610A), a 25-pair connectorized cable, and a jack panel box (Z122C). A drawing of the green-on-white label sheet appears on page 12.
Add Jacks to the Jack Field 1 Position the jack panel box so that the door with the handle is on the 1 right, and attach it to the leftmost jack panel box in the jack field by meshing the tongues and grooves as shown. 2 Use the screws provided or other appropriate fasteners to attach the jack panel box to the wall or mounting surface supporting the jack field. 3 Snap a 4-line adapter into the box so that the jacks on the adapter face to the right.
Connect the Outside Lines to the Jack Field 1 Plug the connector on the 25-pair cable into the 50-pin connector at the network interface. 2 With a jacket-stripping tool, slit the jacket at the free end of the 25-pair cable, and cut away as much of the jacket as necessary to allow the individual twisted pairs of color-coded wires to reach the jacks in the jack field.
Label the Jacks and Box 3 1 Find the green-on-white label sheet, which includes a telephone number directory, line jack labels, jack panel box labels, and jackidentifier label strips. 2 On the telephone number directory, fill in the telephone numbers for your outside lines in the order in which they appear at the network interface or on the list provided by the local telephone company.
TEST THE OUTSIDE LINES This step is optional, but if you have a basic Touch-Tone telephone with a modular plug, you should test your outside line connections now. It can save time and frustration later. Network interface NOTE: A MERLIN system voice terminal will not work for this test. 1 Bring a basic Touch-Tone telephone with a modular plug to the jacks for your outside telephone lines (either at the network interface or at the jack field).
Installing the Control Unit You need the following items to install the control unit: ● Model 820 Control Unit Installation Kit It comes with your control unit and contains labels, two 7-foot line cords, a 2-line adapter, and a system directory. It also contains brackets, screws, and instructions for wall mounting the control unit.
INSERT THE MODULES AND CARTRIDGES CAUTION: Make sure the power cord is unplugged and the power switch on the control unit is set to Off before you insert or remove any modules. 4 Insert each Line Module and Voice Terminal Module as follows: 1 Open and remove the control unit door. 2 Open the faceplate by pushing up on the lever at the top of the faceplate and pulling the faceplate down. 3 Remove the hole plug in the faceplate by pushing it out. 4 Slide the module into the slot and seat it firmly.
CONNECT THE CONTROL UNIT TO THE AC OUTLET The outlet should not be switch-controlled. Plugging your control unit into a switch-controlled outlet invites accidental disconnection of the system. 1 Make sure the power switch on the control unit is set to Off. IMPORTANT: If you have an Auxiliary Power Unit, follow the directions that come with it for connecting the control unit to the Auxiliary Power Unit and connecting the Auxiliary Power Unit to the ac outlet. Then go on to step 3 below.
CONNECT THE OUTSIDE LINES TO THE CONTROL UNIT Any outside line may be connected to any of the line jacks A through H on the control unit. To simplify future line administration, however, you should connect your outside lines to an unbroken sequence of jacks beginning with A (for example, the sequence A, B, C, D, and E, rather than B, C, E, G, and H).
Voice Terminal Wiring The intercom number for each voice terminal in your MERLIN system is the same as the number of the voice terminal jack in the control unit to which that voice terminal is connected. On a Model 820 control unit, the voice terminal jacks are labeled 10-29.
JACK FIELD CONNECTlON To connect the control unit to the jack field, do this: 2 1 Open the right door of each jack panel box in the jack field. TIP: The labeling inside the right door should indicate the wiring run number and endpoint for each jack in the box. Use this labeling as a guide when you fill in your system directory and connect the jacks in the jack field to the voice terminal jacks on the control unit.
DIRECT CONNECTION To connect your voice terminal locations directly to the control unit, do this: 1 1 In the system directory, fill in the voice terminal location you have selected for each intercom number. 2 Beginning with the pair of labels marked 10, label each cord at both ends with matching labels. OPTION SWITCHES TIP: If the distance between a voice terminal location and the control unit requires the use of extension cords, label each end of the wiring run.
Connecting the Voice Terminals There are several types of voice terminals available. Some are more practical for employees with limited need for custom features and access to multiple outside lines. Others are designed for employees who need access to many custom features or outside lines. A 34-button deluxe voice terminal, with lights by every flat button, is most appropriate for an attendant or receptionist.
CONNECT EACH VOICE TERMINAL TO THE SYSTEM 1 Place the voice terminal in its designated location. 2 Plug the voice terminal into the system in one of the following ways: Do This If Go on to step 3. You have already connected the voice terminal to the system in step 3 of “Prepare the Voice Terminals,” page 22.
3 Slide the T/P switch to T and hold it there. All the red and green lights on the voice terminal begin to flash, and a tone sounds. If the lights do not flash: Do This If Then A. Check the green the green power light is power light on the con- on trol unit. the green power light is off go to B. B. Check the wiring run the wiring connections from the control unit to are stable the voice terminal.
If the tone does not sound: Do This Use the voice terminal’s volume control switch to turn up the volume. If Then the tone sounds you’ve solved the problem. the tone still doesn’t sound make a note of it, and refer to the Troubleshooting Table, page 33, after you’ve completed the installation. 4 Slide the T/P switch to the center position. The lights stop flashing and the tone stops. Check the circled wiring connections if the lights do not flash.
TEST EACH VOICE TERMINAL FOR A DIAL TONE 1 Lift the handset. 1 The green light goes on next to the shining red light and you hear a dial tone. 2 Press one or more dial pad buttons. The dial tone stops. 2 If your system does not respond as described, make a note of it, and refer to the Troubleshooting Table, page 33, after you’ve completed the installation. LABEL THE VOICE TERMINALS WITH INTERCOM NUMBERS 1 Fill in an intercom number label for each voice terminal.
Installing Accessories Once you have installed your MERLIN system, you may want to add accessories to enhance its capabilities. CARTRIDGES Cartridges provide the software and interfaces that make it possible for you to use many of the MERLIN system features and accessories. With Type I cartridges, called Feature Packages, you can have access to features such as Conference Calling, Call Pickup, Call Transfer, and Outward Call Restriction.
System Tests Now that your system equipment is in place, you need to test it to make sure it’s operating properly. The following tests will help you determine if you have installed your system correctly and if all your system components are working correctly. If these tests reveal any problems, see the Troubleshooting Table, page 33. 2 1 TEST THE VOICE TERMINAL JACKS FOR A DIAL TONE 1 Move a 34-button deluxe voice terminal to the control unit.
PLACE AN OUTSIDE CALL Using any voice terminal in your system: 1 Lift the handset. 1 The green light goes on next to the red light. 2 Dial an outside number (for example, a friend’s home). 3 After the call is answered, place the call on hold by touching Hold. The green light next to the line button flashes rapidly. 4 Return to the call on hold by touching the line button next to the flashing green light. 5 Verify two-way communication and hang up.
PLACE AN INTERCOM CALL Make this test call from one voice terminal to another voice terminal in your system. Have someone available to answer the intercom call. 1 At a voice terminal, touch the fifth button down in the leftmost row of buttons (Intercom-Ring) without lifting the handset. The red light next to the button goes on. 2 Lift the handset. 1 The green light next to the red light goes on. 3 Dial your partner’s intercom number. You hear intermittent ringing.
What’s Next? Now that your MERLIN system is installed, you need to program it to meet your business needs. See your administration manual to learn how to: ● Assign voice terminals to attendants ● Administer your MERLIN system ● Assign individual lines and call restrictions to individual voice terminals ● Program individual voice terminals Once you’ve customized the system to meet your business needs, review the user’s guide to learn how to use the MERLIN system custom features.
System Changes Your MERLIN communications system is designed so that you can make changes quickly and easily. You can increase your system’s capacity by adding outside lines or voice terminals. Modular plugs on much of the system wiring and the labels on key components make it easy for you to reorganize the system in the event of office rearrangements. The following are the most common system changes.
MOVING A VOICE TERMINAL You can easily move a voice terminal from one location to another without having to reprogram the voice terminal. To move a voice terminal: 1 Make sure the necessary wiring is in place at the voice terminal’s new location (see “Getting Started,” page 3, and “Voice Terminal Wiring,” page 18). 2 Unplug the voice terminal at its old location, and plug it in at the new location.
Troubleshooting Refer to the following table if you have trouble with your MERLIN system. Identify the symptom in the “Trouble” column of the table, and perform the recommended steps to isolate and correct the problem. If you are unable to identify a particular problem, perform the General Test on page 36 before calling your equipment supplier for help.
TROUBLESHOOTING TABLE (CONTINUED) Then If Trouble Possible Cause Do this You have difficulty placing outside calls from more than one voice terminal. (continued) Faulty network interface line adapter 5. Replace the network interface’s line adapter with another one. Plug the basic telephone into each of the jacks, and try to place an outside call. the trouble still appears on the basic telephone your outside lines are faulty. Report the trouble to your local telephone company representative.
TROUBLESHOOTING TABLE (CONTINUED) Trouble Possible Cause Do this If There is trouble with voice terminal lights, speaker, or ringing. (continued) Faulty voice terminal 2. Unplug the modular voice terminal cord from the malfunctioning voice terminal. Replug the cord into a working voice terminal. Slide its T/P switch to the T position and hold it there. the same trouble appears on the working voice terminal the malfunctioning voice terminal probably is not faulty.
TROUBLESHOOTING TABLE (CONTINUED) Trouble All voice terminals have no lights and no dial tone. (continued) Possible Cause Do this If Then Switch-controlled power outlet 2. Make sure the control unit is not plugged into an outlet controlled by a wall switch. the control unit is not plugged into a switch-controlled outlet go to step 3. Faulty power outlet 3. Test the outlet by plugging in an appliance such as a lamp or a radio. the appliance doesn’t work the outlet is faulty.
Appendix A: Interference Information Appendix B: FCC Registration and Repair Information According to Federal Communications Commission (FCC) Rules, you need to know that: ● This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this installation giude, may cause interference to radio communications.
Index AC Outlet, 4, 5, 14, 16 Accessories, 26 Autodialer, 26 Auxiliary Power Unit, 16, 26 Hands-Free Unit, 26 Headset, 26 Modems, 26 Voice Terminal Power Supply, 26 Administering the MERLIN System, 2, 17, 30, 31 Airborne Contamination, 3 Auxiliary Power Unit, 16, 26 Building Wiring, 4, 5, 6, 18, 19 Call Pickup, 26 Call Transfer, 26 Cartridges, 4, 15, 26 Conference Calling, 26 Connecting the Voice Terminals, 21 - 25 Control Unit, 3 - 13, 14 - 17, 18 - 20, 22 - 24, 31, 32 Cartridges, 4, 15, 26 Environmental R
AT&T MERLIN is a registered trademark of AT&T © Copyright 1986 AT&T. Printed in U.S.A.
