Clear-Com ECLIPSE TEL-14 Instruction Manual
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
Document Reference
Clear-Com HelixNet Partyline User Guide
Part Number: 399G278 Rev A
Legal Disclaimers
Copyright © 2018 HME Clear-Com Ltd.
All rights reserved.
Clear-Com, the Clear-Com logo, and Clear-Com Concert are registered trademarks of HM Electronics, Inc.
The software described in this document is furnished under a license agreement and may be used only in
accordance with the terms of the agreement.
The product described in this document is distributed under licenses restricting its use, copying, distribution, and
decompilation/reverse engineering. No part of this document may be reproduced in any form by any means
without prior written authorization of Clear-Com, an HME Company.
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
Clear-Com Contacts
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California, United States
Tel: +1.510.337.6600
Email: CustomerServicesUS@clearcom.com
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Tel: +8610 65811360 / 65815577
iii
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
CONTENTS
OPERATION 1-1
Introduction ..................................................................................................... 1-1
Description ...................................................................................................... 1-2
Operation ........................................................................................................ 1-6
INSTALLATION 2-1
Introduction ..................................................................................................... 2-1
Description ...................................................................................................... 2-2
Wiring ............................................................................................................. 2-3
Setup ............................................................................................................... 2-4
Configuration ................................................................................................ 2-14
MAINTENANCE 3-1
Introduction ..................................................................................................... 3-1
Troubleshooting ..................................................................................................... 3-1
Block Diagram ..................................................................................................... 3-4
SPECIFICATIONS 4-1
LIMITED WARRANTY 5-I
Warranty Period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-i
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-i
Warranty Repairs and Returns ..................................................................... . . 5-ii
Non-Warranty Repairs and Returns ............................................................ . . 5-ii
Extended Warranty ............................................................................................ . . 5-ii
Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-iii
iv
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
IMPORTANT SAFETY
INSTRUCTIONS
Please read and follow
these instructions
before operating this
product.
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
manufactur
er’s instructions.
8.
Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9.
Only use attachments/accessories specified by the manufacturer.
10.
Use only with the cart, stand, tripod, bracket, or table specified
by the manufacturer, or sold with the apparatus. When a cart is
used, use caution when moving the cart/apparatus combination
to avoid injury from tip-over.
11.
Unplug this apparatus during lightning storms or when
unused for long periods of time.
12.
Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally,
or has been dropped.
13.
WARNING:
To reduce the risk of fire or electric shock, do not
expose this product to rain or moisture.
Please familiarize yourself with the safety symbols in Figure 1. When
you see these symbols on this product, they warn you of the potential
danger of electric
shock if the station is used improperly. They
also refer you to important operating and maintenance
instructions in the manual.
v
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
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.
Figure 1: Safety Symbols
EMC AND SAFETY
The TEL-14 Telephone Interface meets all relevant FCC specifications
set out below:
EN55103-1 Electromagnetic compatibility. Product family standard for
audio,
video, audio-visual, and entertainment lighting control
apparatus for professional use. Part 1: Emissions.
EN55103-2 Electromagnetic compatibility. Product family standard for
audio,
video, audio-visual, and entertainment lighting control
apparatus for professional use. Part 2: Immunity.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
1 - 1
1
This chapter describes
the five most common
modes of operation.
OPERATION
INTRODUCTION
This chapter describes how to use the TEL-14 two-channel autonulling 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:
•
Intercom-station telephone access
•
Self-service dial-in
•
Manual call screening
•
Intercom-to-intercom
•
Party-line dial-in
Intercom station operators will normally access telephone lines with
the TEL-14 in
the
“inter
com-
station telephone-acce
ss”
mode.
However,
station operators
may need to check with their system
operator for further instructions if a
TEL-14 has been configured in a mode not described here.
Technical personnel should refer to Chapter 2, “Installation,” for
details on configuring the TEL-14's internal option switches for each
of these modes (and any others possible).
The next section, “Description,” covers the basic features of the
TEL-14, including its front-panel controls and indicators. The option
switch settings are described for each mode, but they are covered
more thoroughly in Chapter 2. The final sections cover the use of
the TEL-14 in each of the five modes.
Important: When the TEL-14 is first connected to a new telephone
line, its automatic nulling process must be performed before it
can be used. This process consists of calling each line, depressing
the Auto Answer button for 5
seconds, and then waiting several seconds
while the automatic procedure is
carried out. It may not be possible to
make outgoing calls on the telephone line until this procedure is
performed. Refer to the Automatic Telephone Line Null section of this
Operation Manual.
Note:
Other configurations are possible, in addition to the configurations
described
here. However, certain configurations may result in undesirable
crosstalk, as a result of
the limitations of the TEL-14's circuitry. For example,
consider a news reporter who calls into the matrix. You would like to provide
the reporter with a program feed, and at the same time route his voice in
through the matrix to a live broadcast. However,
the TEL-14 cannot
perfectly isolate his talk from his listen, so some of his outgoing
program feed may leak into his incoming voice.
1 - 2
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
Install the TEL-14 in
an interface frame.
See the Interface
Frames Instruction
Manual for more
information.
Note: When using the TEL-14 with a speaker station, keep the panel mic gain
low. In
general, keep all gain controls set to a level which is acceptable, but not excessive.
DESCRIPTION
The TEL-14 telephone interface can be installed in an IMF-3 or
IMF-102 interface frame.
The TEL-14 allows two standard 2-wire POTS (Plain Old Telephone
Service) telephone lines to be connected to ports in the Eclipse
matrix. The TEL-14 can answer an incoming call automatically ("autoanswer") after either 1 or 4 rings, and it can be configured to send a
call signal whenever it answers a call. The TEL-14 can be configured
to be accessible to intercom station operators, or only to outside
callers.
The front panel features for each telephone line a "ring/off-hook"
LED, a "hook" button, a "send level" LED, a "send volume" control, a
"receive volume" control, an "auto gain adjustable" LED, an "auto
gain" button, an "auto gain fixed" LED, an "auto answer" LED, and
an "auto answer" enable button. For more details see the "Controls
and Indicators" section, below.
The TEL-14 occupies one slot in an interface frame. The TEL-14
provides transformer isolation between each telephone line and the
matrix. The TEL-14 includes a "normally open" relay ("A" and "A1"
contacts) for each line that closes when the line is in use (off hook).
Connections to the matrix are via RJ-45 connectors, and
connections to the telephone line and external relay connections are
via DB-9M connectors. A secondary telephone set may be connected
in series with each TEL-14 line. Clear-Com provides DB-9F to RJ11 adapters (CC# 770025) that allow the use of common RJ-11
telephone jacks and cords.
CONTROLS AND INDICATORS
The front panel features:
•
A bicolor "ring/off-hook" status LED
•
A "hook" ("line seize") button
•
A bi-color "send level" LED
•
A "send volume" control
•
A "receive volume" control
•
An "auto gain" button
•
"Auto gain" status LEDs
•
An "auto answer" button
•
An "auto answer" status LED
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
1 - 3
"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.
"Hook" Button
The "hook" button allows a local operator to manually toggle the
TEL-14 line between "on-hook" (telephone line not in use) and "offhook" (line "seized" -- that is, in use) status. If a line is seized at the
interface by the "hook" button, that
line
cannot
be re
leased from an
in
tercom station, even if
the
“m
atrix
control” option switch is set. The
line can be released only by either pushing the button again, or by
auto-disconnect (if the auto-disconnect option switches are set).
"Send Level" LED
The bi-color "send level" LED lights green when the audio signal
being sent to the telephone line is at a typical acceptable level. The
LED lights red when the audio output signal level is too high. In
normal operation, the LED should light green during speech and
only
flicker red intermittently. The
“s
end v
olume” control adjusts the
level indicated by this LED.
"Send Volume" Control
The "send volume" control sets the level of the signal that the TEL-14
sends to the telephone line by changing the AGC limiting level. It is
only active when the
"auto gain" button is set to “adjustable.” The "send
volume" control has a range
of 12 dB. Adjust the "send" control so that
the "send level" LED always lights green with no more than occasional
red flashes.
"Receive Volume" Control
The "receive volume" control sets the level of the signal that the TEL14 receives from the telephone line by changing the AGC limiting
level. It is only active
when the "auto gain" button is set to “adjustable.”
The "receive volume" control
has a range of 12 dB. While setting the
receive volume, listen to the output from
the teleph
one
line in
normal
use. Adjust the
“r
eceive”
control until the
telephone
receive level is
comparable to the volume level of other intercom listen paths.
"Auto Gain" Button
With the "auto gain" button set to fixed, the TEL-14 adjusts the audio
gain to limit the send and receive telephone line signals to normal
levels. In the fixed mode, the "send volume" and "receive volume"
controls are disabled, but are in effect set to their center positions.
When the "auto gain" button is set to “a
djusta
ble,”
the TEL-14
adjusts
the audio gain to limit the
send and r
eceive
telephone line signals to
levels defined by the "send volume" and "receive volume" controls.
The TEL-14 remembers the setting of the "auto gain" button when
power is turned off.
1 - 4
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
"Auto Gain" Status LEDs
These green and yellow LEDs indicate the curren
tly se
lected “a
uto
gain”
mode. The yellow
LED indicates that the “a
djustabl
e” mo
de is
selected
and the gr
een
LED
indicates
that the
“fixed”
mode is se
lected.
Refer to the pr
evious paragraph
for an explanation of these modes.
"Auto Answer" Button
The front-panel
“a
uto answer”
button allows the local user to
enable or
disable
the TEL-14's auto
answering
mode. The
“a
uto answ
er”
function, in conjunction
with the “a
uto disconnect”
function, allows a
TEL-14 to
automatically service incoming calls. An outside caller can
automatically be connected to any matrix audio connection that has
been pre-assigned from the Eclipse Configuration System, such as a
party line or an IFB program feed.
Auto answer is enabled by using the "auto answer" button to turn ON
the auto answer indicator LED. The interface will then automatically
answer incoming calls after either 1 or 4 rings, as set by the "ring
count" option switch. The TEL-14 remembers the setting of the "auto
answer" button when power is turned off.
The
“a
uto-answer” bu
tton
can be overridden by the
Eclipse matrix to
allow
the TEL-14 to auto-answer without the auto-answer button
being set to enable.
This will occur when a TEL-14 is configured in ECS to use Passcodes
set up in
the Sy
stem Pr
efer
ences “S
ystem Access Codes” tab as
DTMF
Pass
codes. The use of DTMF passcodes is configured in Matrix
Hardware under Advanced Settings and DTMF Settings as “Enable
Passwords”.
Once a line is auto answered, it can only be released by auto
disconnect, by the "hook" button, or from a matrix station that has
"remote telephone-line release" enabled. Auto disconnect releases
the line when a dial tone, busy tone, reorder tone, or loop current
interruption appears on the line (if not disabled by the autodisconnect option switches). The line cannot be released by
deactivating any or all talk or listen paths from the intercom
stations to the TEL-14. Flash hook signals from the matrix will also
have no effect. This prevents intercom station operators from
disconnecting the telephone line when it is in automatic use by
outside callers, or in manual use by an intercom station operator
who has access to the "hook" button.
The "auto answer" button can also be used to initiate an
automatic nulling sequence. Refer to the following section.
"Auto Answer" Status LED
This gr
een
LED in
dicates the curr
ently se
lected “auto answer”
mode.
If it is lit,
the TEL-14 will automatically answer telephone calls. If it is
not lit, incoming telephone calls can only be answered manually.
Refer to the previous paragraph for
further explanation of
“a
uto
answer”
mode.
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
1 - 5
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. This process is automatic,
but must be initiated by the user. The way to do this is described
later in this section.
•
The continuous dynamic voice null takes place during each
telephone call. It automatically "fine tunes" the null and cancels
echoes.
The TEL-14 must null itself to the telephone line before normal
operation is optimal. This procedure is to be performed once
whenever the TEL-14 is connected to a different telephone line.
Once this nulling procedure is performed, the TEL-14 will remember
the telephone line characteristics when it is removed from the frame
or loses power. It is necessary to null (minimize) the sidetone (the
sound of the operator's own voice in his or her headset) when an
external telephone line is placed in an intercom environment. Ideally,
there should be no portion of the talk signal in the listen signal. The
TEL-14's sidetone nulling procedure is described here.
Before calling the TEL-14 to automatically null it, connect the external
telephone line and any other devices that affect the line's impedance.
These include other telephone extensions connected in parallel on
the same line. The phone line must be active (turned on at the
central telephone office) during the nulling process, and all local
parallel phone sets must be plugged in but on-hook so the line is in
its normal operating state.
1.
Enable the "auto answer" function using the front panel button.
2.
Call the TEL-14 interface from a standard telephone set or cellular
phone.
Do not
call the TEL-14 from another TEL-14 in an
intercom.
3.
Press and hold the "auto answer" button for 5 seconds. The
green "auto answer on" LED will turn off and then turn on again
after 5 seconds. When this happens, release the "auto answer"
button.
4.
Maintain silence on the telephone line. The TEL-14 will listen for
one second of silence before beginning. The "ring/off-hook" LED
will then flicker yellow and a series of tones will appear on the
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. There will be no
white noise or tones at the beginning of each call, but instead the
TEL-14 will use voices to dynamically adapt the interface to account
for any residual nulling which may be needed.
Typically, the TEL-14 will have adapted within 5 seconds of the start
of the 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. Throughout the call the TEL-14
will continue to perform continuous, automatic echo cancellation and
adaptation to acoustic changes.
1 - 6
TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
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.
OPERATION
This section describes the operation of the TEL-14 in each of the
following modes:
•
Intercom-station telephone access
•
Self-service dial-in
•
Manual call screening
•
Intercom-to-intercom
•
Party-line dial-in
INTERCOM-STATION TELEPHONE-ACCESS
MODE
In “intercom-stat
ion
telephone-ac
ces
s”
mode, a call on a TEL-14
line
can be answered by any intercom station with a selector key
assigned to a TEL-14 port label. Intercom stations can originate a call
by using the "dial phone" mode.
If the call must originate at another station model, then this station
must have a key programmed to activate a DTMF sequence.
Another way to arrange this is for the operator to have access to a
standard telephone set connected with the TEL-14 line (for further
information, see "Manual Call Screening Operation" below).
The default
settings of
the TEL-14 allow
“s
tation acces
s”
mode.
If
the
“immediate
manual disconnect”
feature is
disabled, there will
be
a
pe
riod
of 15 seconds between the time when you deactivate the
path to the TEL-14 port and the time when the TEL-14 hangs up the
line. This gives you time to transfer the call to another station, or to
recover an accidental deactivation of the path to the TEL-14 without
losing the call.
If your station is on the "preset call signal list" for the TEL-14 port,
you will automatically receive a call signal whenever the TEL-14
answers an incoming telephone call. The call signal will continue
for as long as the line is ringing.
SELF-SERVICE DIAL-IN MODE
In “s
elf-service
dial-in”
mode,
also referred to as
"telephone
IFB"
mode,
the
TEL-14 will answer automatically whenever outside callers dial in.
The caller will be automatically connected to a preset party-line,
station, or program feed.
Auto-disconnect will release the line automatically after the caller
hangs up. This mode can also be used to implement "direct inward
access" and "dial-up IFB". This mode is normally configured to
"prevent stations from calling out" to leave the line available for dialin use only. If you are
calling from an outside line in “s
elf-service dial-
in”
mode, the audio
paths are normally preset and available as soon
as the TEL-14 answers your call. The TEL-14 will answer your call
after either 1 or 4 rings, depending on how you configure it.
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