3Com RELEASE 2 Connect the Control Unit to the AC Outlet, Control unit attached to power source

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CONNECT THE CONTROL UNIT TO THE AC OUTLET

The ac outlet should be a 117-volt, 60-Hz, 3-prong, third-wire grounded outlet. You should have an electrician check the outlet’s third wire to make sure the outlet is properly grounded. Proper grounding helps protect the system against damage from power surges caused by static discharges and lightning. See "Appendix C: Grounding Requirements" before connecting the control unit to the power source.

Once you are satisfied that the outlet is properly grounded, connect the control unit to the ac outlet as follows:

1Make sure the power switch on the control unit is set to Off.

2Plug one end of the power cord into the socket just below the power switch on the front of the control unit.

3Thread the cord through the cable channel at the bottom of the control unit.

4Plug the other end of the cord into the ac outlet, allowing for a foot or so of slack.

5Set the power switch on the control unit to On.

The green power light on the control unit goes on.

The red warning light on the control unit blinks once, then goes off unless a malfunction occurs.

The orange light on the power module goes on indicating that the outlet is properly wired and grounded. If the orange light is off when the green light is on, the outlet is not functioning, or may be miswired or improperly grounded. Contact a qualified electrician immediately.

See Figure 13.

FIGURE 13 The control unit attached to power source.

As soon as the unit is turned on, the red warning light should flash once,

then remain off. Observe the lights on the control unit to determine its

condition before proceeding. If any of the conditions described in the following table exist, take the recommended steps to correct the situation.

Step 1: Installing the Control Unit 15

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Contents Merlin Plus 1988 AT&T Issue All Rights Reserved August Contents Appendix C Grounding Requirements Shows a typical Merlin Plus system IntroductionTypical Merlin Plus system overview FCC Regulations Prepare the Network Interface Installing the Control UnitNetwork Do This Interface Has Testing outside lines for a dial tone Have a dial tone Mounting the Control UnitDiagram of the control unit location Removing Control Unit Covers EquipmentControl unit rear view Installing the Control Unit Mounting the control unit on the wall Control unit modules Inserting a second line module Inserting a Line ModuleInserting a Voice Terminal Module Connect the Control Unit to the AC Outlet Control unit attached to power sourceThen System Configuration Form Control unit connected to labeled outside lines Preparation Considerations Wiring the Voice TerminalsIntercom 19 and Printed Reports Connecting voice terminal wiring through a jack field Terminals Connecting the Voice TerminalsPreparing the voice terminal desk stand or wall mount Testing the Voice Terminals Preparing For TestingAdjusting the Speakerphone volume If the lights do not flash Do This Then Identify Each Voice Terminal Verify Intercom NumberVerifying and labeling the intercom number Telephone Auxiliary LineTest the Voice Terminal Jacks for a Dial Tone Testing the SystemPlugging in a voice terminal to test jacks for dial tone Placing an outside call Placing an intercom call Performance Tips SpeakerphoneAdding Accessories Adding AccessoriesMerlin Plus system data collector and printer Merlin Plus system Basic Telephone Modem Interface Merlin Plus system Music-on-Hold jack Merlin Plus system alerters Merlin Plus system voice terminal power supply kit Accessories that Extend Telephone RangeAn ln-Range, Out-of-Building protector Adding a Voice Changing the SystemTerminal Moving a voice terminal jack field connection Moving a Voice TerminalComplete wiring installation Jack Field Wiring SupplementJack Field Construction Recommendations Moving Voice Terminals Attached to a Jack Field ExampleJack Field Wiring Supplement Well-positioned control unit Constructing a Jack FieldJack Field Wiring Supplement Running the cables Terminating the Wiring Runs in Modular Wall JacksExtending the Network Interface to the Jack Field Connect the Outside Lines to the Jack Field Add Jacks to the Jack FieldLabel the Jacks and the Jack Panel Box Jack Field Wiring Supplement FCC Registration and Repair Information Typical Merlin Plus system connectivity Appendix a System Connectivity OverviewWiring Appendix B Quick Reference Installation RequirementsEnvironment Proper ac outlet measurements Mounting the Control Unit AC Outlet CheckMounting the control unit on the wall Voice Terminal Wiring Connecting the Control UnitCO Line Wiring Grounding Requirements Power onAppendix C Grounding Requirements Before YOU TurnAppendix C Grounding Requirements Appendix C Grounding Requirements Typical Merlin Plus system grounding plan Table D-1 Wiring Parts Cross Reference Appendix D Wiring Reference TablesTable D-2 4-Pair Wiring for the Merlin Plus System Table D-4 CO Line Wiring, 6-Position Jack, Two-Pair Table D-3 CO Line Wiring, 6-Position Jack, Single-PairTable D-5 CO Line Wiring, 6-Position Jack, Multipair Typical Merlin Plus system wiring installation Qty Table D-6 Material List for 8 Telephones and 3 Lines FigureAppendix E Direct Connection Wiring Voice terminal wiring, direct connection Appendix E Direct Connection Wiring Appendix E Direct Connection Wiring Index Index2Index 518-600-008