Summary of Contents for Clear-Com ECLIPSE TEL-14
- Page 1 CLEAR-COM ECLIPSE TEL-14 TWO-CHANNEL TELEPHONE INTERFACE I N S T R U C T I O N M A N U A L Part Number: 399G278 Rev. A 30 November 2018...
- Page 2 This product is covered by U.S. Patent Nos. 8,311,085 and 8,553,865 and by European Patent No. 2 176 987 B1. Clear-Com Offices are located in California, USA; Cambridge, UK; Montreal, Canada; and Beijing, China. Specific addresses and contact information can be found on Clear-Com’s corporate website: www.clearcom.com...
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Page 3: Table Of Contents
CONTENTS OPERATION Introduction ..................... 1-1 Description ...................... 1-2 Operation ......................1-6 INSTALLATION Introduction ..................... 2-1 Description ...................... 2-2 Wiring ......................2-3 Setup ....................... 2-4 Configuration ....................2-14 MAINTENANCE Introduction ..................... 3-1 Troubleshooting ..................... 3-1 Block Diagram ..................... 3-4 SPECIFICATIONS LIMITED WARRANTY Warranty Period. - Page 4 IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’...
- Page 5 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol alerts you to the presence of uninsulated dangerous voltage within the product's enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product's case. This symbol informs you that important operating and main- tenance instructions are included in the literature accompanying this product.
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Page 7: Operation
OPERATION INTRODUCTION This chapter describes how to use the TEL-14 two-channel auto- nulling telephone interface. The TEL-14's panel controls and internal option switches can select any one of a large number of modes of operation. This chapter describes the five most common modes: •... -
Page 8: Description
DB-9M connectors. A secondary telephone set may be connected in series with each TEL-14 line. Clear-Com provides DB-9F to RJ- 11 adapters (CC# 770025) that allow the use of common RJ-11 telephone jacks and cords. - Page 9 "Ring/Off-Hook" LED The "ring/off-hook" LED flashes red when the telephone line receives a ring signal. The LED is green while the line is answered and in use. The LED flickers yellow during the automatic hybrid nulling process. The LED is off when the line is on-hook and not ringing.
- Page 10 "Auto Gain" Status LEDs These green and yellow LEDs indicate the currently selected “auto gain” mode. The yellow LED indicates that the “adjustable” mode is selected and the green LED indicates that the “fixed” mode is selected. Refer to the previous paragraph for an explanation of these modes. "Auto Answer"...
- Page 11 AUTOMATIC TELEPHONE LINE NULL The TEL-14 features sophisticated automatic nulling circuitry, in addition to its integral echo cancellation system. This nulling capability is in two parts: • The initial telephone line hybrid null is to be performed the first time a telephone line is connected to the TEL-14 or whenever a different telephone line is connected.
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Page 12: Operation
The above initial automatic nulling process should not need to be repeated, unless the telephone line connection is changed to a different telephone number or if there is reason to believe the telephone line impedance has changed significantly--for example, if echoing or feedback occurs at a lower volume setting than before. - Page 13 If you are calling in on a "direct inward access" line with no preset audio paths, you may need to enter passwords, selector codes, and/or control codes to activate audio paths. Note: When you call a TEL-14 with access prompt enabled if you then go on-hook during or just after the Access Prompt is heard then the TEL-14 will remain off-hook.
- Page 14 PARTY LINE DIAL-IN MODE Two TEL-14 lines may be programmed into the same party line. "Auto answer" should be enabled to allow people to call and automatically connect into the party line. The callers may then communicate with each other, as well as anyone on the party line. When a caller disconnects, the TEL-14 line will automatically disconnect after a short time, depending upon the response time of the telephone central office.
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Page 15: Installation
INSTALLATION INTRODUCTION This chapter describes the TEL-14 two-channel auto-nulling telephone interface and its installation in the matrix, including setting internal option switches, wiring to external devices, operation of the front panel controls and indicators, and electrical and mechanical specifications. The following subjects are covered in this chapter: •... -
Page 16: Description
DESCRIPTION The TEL-14 allows two standard loop start POTS (Plain Old Telephone Service) lines to connect to ports in the Eclipse matrix. The TEL-14 dual telephone interface is installed in an interface frame. The following functions are available for each line: •... -
Page 17: Wiring
DB-9 connector using the pinouts in Figure 2-1. Note the Clear-Com #770020 adapter, which may be alternately supplied, does not have the wiring to pins 1 and 6 of the RJ-11 connector. - Page 18 TEL-14 in series with a telephone. Telephone Central Office Line Modular Duplex Surface Jack Graybar Part # AT444 or AT666 RJ-11 TO DB-9F ADAPTER Clear-Com Part # 770025 Modular Line Cord Graybar Part # AT507 Modular Line Cords Relay Graybar Part # AT407 Contacts...
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Page 19: Setup
RELAY CONTACTS A pair of relay contacts for each line ("A/A1 leads") rated at 2A @ 24 VAC are available on the DB-9M connector or the RJ-11 adapter. This pair of contacts is normally open when the line is "on-hook" and closes when the TEL-14 goes "off-hook.”... - Page 20 telephone line. These tones will be heard on the telephone line, but not on the intercom. Maintain silence during this process. 5. At the conclusion of the tones, the automatic nulling process is complete. After this initial automatic nulling adjustment has been made, the TEL-14 will remain adapted to this telephone line.
- Page 21 The TEL-14 must be unplugged from the frame to access the option switches. The TEL-14 may be removed and inserted with the frame powered. With the exception of the normal/test mode switch and matrix identification switches, which are not used on Line B, the Line A and Line B switch numbering is identical.
- Page 22 Matrix Compatibility Option Switches The TEL-14 is compatible with Matrix Plus II, Matrix Plus 3, and Eclipse intercom systems, although the option switches must be set for each system as follows: Set the Matrix Identification option switches S5-1 Switches S5-1 and S5-2: and S5-2 to ON if you have a Matrix Plus 3 or Eclipse intercom system or to OFF if you have a Matrix Plus II intercom system.
- Page 23 echo cancellation, set option switch S6-3 to ON. To disable automatic telephone echo cancellation, set option switch S6-3 to OFF. The factory default setting is ON, causing automatic telephone echo cancellation to be enabled. At the start of a call when the Switch S6-4 DTMF Dial Guard Time: TEL-14 goes off hook the Echo Cancellation is frozen and the Receive Gain is reduced to allow distortion free DTMF dialling.
- Page 24 the TEL-14 automatically answers it. The ring count can be set to either 1 ring or 4 rings. To set the Auto Answer Ring Count to 1 ring, set option switch S1-1 to ON. To set the Auto-Answer Ring Count to 4 rings, set option switch S1-1 to OFF.
- Page 25 In the first few seconds after the TEL-14 answers Switch S1-8 Guard Time: an incoming call, the telephone system may produce momentary interruptions in the current feeding the TEL-14. These interruptions may not occur in some telephone systems. When set to the Normal position, a guard time of about 5 seconds is in effect to prevent these interruptions from prematurely disconnecting the call.
- Page 26 *Note: The appropriate Tone Sense switches S1-2, S1-3, and S1-4 must be set to ON for 1 Hz cadence, 2 Hz cadence, or steady tones to be sensed as disconnects. If the ring voltage from the Ring Jumper J6 Ring Voltage Sensitivity: telephone line is low and the TEL-14 will not answer to it, this jumper can be set to the 60V position.
- Page 27 "master" operator with physical access to the TEL-14 "hook" button. A standard telephone, wired in series with the TEL-14, is used to initially pick up the call. When the telephone has been wired in series with the TEL-14, picking it up will not cause the interface to go off-hook, nor will this interfere with a call already in progress.
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Page 28: Configuration
In this type of connection, there is a possibility the echo canceller DSPs in the two TEL-14 cards will interfere with each other and cause instability. Note that setting the "intercom echo cancellation" (S6-2) and "telephone echo cancellation" (S6-3) option switches to OFF on one of the TEL-14 cards will improve this condition but result in slightly more sidetone in that card. -
Page 29: Maintenance
MAINTENANCE INTRODUCTION This chapter provides a block diagram and a troubleshooting guide for the TEL-14 two-channel auto-nulling telephone interface. To view the diagram refer to the end of this chapter. TROUBLESHOOTING To help isolate any problems you may encounter, a list of possible symptoms and possible solutions is provided. - Page 30 4. A telephone call to the TEL-14 cannot be answered from a station. The red Ring/Off Hook LED lights when the line is called. • Check that the call can be answered by pressing the Hook button while the call is ringing. The Auto Answer LED should turn from red to green when a ringing call is answered.
- Page 31 10. Excessive echo, background noise, or instability is heard during telephone calls or just at the start of a call. • The TEL-14 will usually adapt within 5 seconds of the start of a call. Before it has adapted, voices may temporarily sound hollow. This effect is normal, but may be minimized by reducing the send and/or receive volume settings.
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Page 32: Block Diagram
BLOCK DIAGRAM Audio From Audio To Line A Intercom Intercom Telephone Splash Level & Call Tone Generator Progress Nulling Tone Tone Detect Generator Send Level Contacts Level Detect Telephone Intercom Splash Tone Generator Hybrid Line A Seize, POTS Hold, Line A Disconnect Line A To Line A DSP / Tone... -
Page 33: Specifications
SPECIFICATIONS AUDIO Frequency Response 300 Hz - 3500 Hz Send Gain Control Range ± 12 dB Send Gain (@ 0 dB setting) -12 dBv on intercom line produces -9 dBm on telephone line Receive Gain Control Range ± 12 dB Receive Gain (@ 0 dB setting) -27 dBm on telephone line produces -12 dBv on intercom line... - Page 34 Weight 0.78 lbs (0.32 kg) Notice About Specifications While HME Clear-Com makes every attempt to maintain the accuracy of the information contained in its product manuals, that information is subject to change without notice. Performance specifications included in this manual are design-center specifications and are included for customer guidance and to facilitate system installation.
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Page 35: Limited Warranty
LIMITED WARRANTY HME Clear-Com warrants that at the time of purchase, the equipment supplied complies with any specification in the order confirmation when used under normal conditions, and is free from defects in workmanship and materials during the warranty period. -
Page 36: Warranty Repairs And Returns
Return Material Authorization (RMA). CLEAR-COM representatives will give you instructions and addresses for returning your equipment. You must ship the equipment at your expense, and the support center will return the equipment at CLEAR-COM’ s expense. For out-of-box failures, use the following contact information:... - Page 37 THE WARRANTY PERIOD AS AFORESAID. This warranty does not cover any damage to a product resulting from cause other than part defect and malfunction. The CLEAR-COM warranty does not cover any defect, malfunction, or failure caused beyond the control of CLEAR-COM, including unreasonable or...
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