ZETRON 280 Manuale utente
Model 284 Digital Tone Remotes
Product Manual
025-9346N
©Zetron, Inc. All rights reserved worldwide. This publication is protected by copyright; information in this document is
subject to change without notice. The Zetron logo is a registered trademark of Zetron Incorporated. Other company
names and product names may be the trademarks or registered trademarks of their respective owners. This publication
may not be reproduced, translated, or altered, in whole or in part, without prior written consent from Zetron, Inc.
Software License
The Zetron software described in this manual is subject to the terms and conditions of Zetron's Software License Agreement,
a copy of which is contained on the product distribution media or otherwise provided or presented to buyer. Installation and/
or use of the Zetron software constitutes acceptance of Zetron's Software License Agreement.
Limited Warranty
Buyer assumes responsibility for the selection of the Products to achieve buyer's or its customer's intended results obtained
from the Products. If buyer has provided Zetron with any requirements, specifications or drawings, or if Zetron provides
buyer with such materials, such materials are provided solely for buyer's convenience and shall not be binding on Zetron
unless agreed in writing by the President of Zetron. ZETRON DOES NOT WARRANT THAT THE PRODUCTS OR ITS
CUSTOMER'S REQUIREMENTS OR SPECIFICATIONS OR THAT OPERATION OF THE PRODUCTS WILL BE
UNINTERRUPTED OR ERROR FREE. SUBJECT TO THE LIMITATIONS SET FORTH BELOW, Zetron warrants that all
Zetron Products and Zetron Accessories will be free from material defects in material and workmanship for one year from
date of shipment (except where indicated otherwise in the Zetron Price Book). For buyer's convenience, Zetron may purchase
and supply additional items manufactured by others. In these cases, although Zetron's warranty does not apply, buyer shall be
the beneficiary of any applicable third party manufacturer's warranties, subject to the limitations therein. Zetron's warranty
covers parts and Zetron factory labor. Buyer must provide written notice to Zetron within the warranty period of any defect. If
the defect is not the result of improper or excessive use, or improper service, maintenance or installation, and if the Zetron
Products or Zetron Accessories have not been otherwise damaged or modified after shipment, AS ZETRON'S SOLE AND
EXCLUSIVE LIABILITY AND BUYER'S SOLE AND EXCLUSIVE REMEDY, Zetron shall either replace or repair the
defective parts, replace the Zetron Products or Zetron Accessories or refund the purchase price, at Zetron's option, after return
of such items by buyer to Zetron. Shipment shall be paid for by the buyer. No credit shall be allowed for work performed by
the buyer. Zetron Products or Zetron Accessories which are not defective shall be returned at buyer's expense, and testing and
handling expense shall be borne by buyer. Out-of-warranty repairs will be invoiced at the then - current Zetron hourly rate
plus the cost of needed components. THE FOREGOING WARRANTY AND THE THIRD PARTY MANUFACTURER'S
WARRANTIES, IF ANY, ARE IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED, IMPLIED OR
ARISING UNDER LAW, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
Limitation of Liability
Zetron makes no representation with respect to the contents of this document and/or the contents, performance, and function
of any accompanying software.
ZETRON SHALL NOT UNDER ANY CIRCUMSTANCES BE LIABLE TO BUYER OR ANY THIRD PARTY FOR ANY
INCIDENTAL, SPECIAL, CONSEQUENTIAL OR INDIRECT LOSS OR DAMAGE ARISING OUT OF OR
CONNECTED WITH BUYER'S PURCHASE OR USE OF PRODUCTS OR SERVICES, INCLUDING WITHOUT
LIMITATION, LOSS OF USE, LOSS OR ALTERATION OF DATA, DELAYS, LOST PROFITS OR SAVINGS, EVEN IF
ZETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND EVEN IF THE LIMITED
REMEDY ABOVE IS FOUND TO FAIL OF ITS ESSENTIAL PURPOSE. IN NO EVENT SHALL ZETRON'S
LIABILITY (WHETHER FOR NEGLIGENCE OR OTHER TORT, IN CONTRACT OR OTHERWISE) EXCEED THE
PRICE PAID TO ZETRON FOR THE PRODUCTS.
IP networks by their nature are subject to a number of limitations, such as security, reliability, and performance. Anyone using
non-dedicated IP networks, such as shared WANs or the Internet, to connect to any Zetron Products or systems should
consider and is responsible for these limitations.
3
Regulatory Compliance
FCC Class A User Information
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required
to correct the interference at his own expense.
EMC Compliance Standards
This product meets the requirements of the standards listed below.
• FCC Part 15 - Radiated & Conducted Emissions (USA) ICES-003 - Radiated & Conducted Emissions (Canada)
Regulatory Compliance Markings
• FCC Part 15 (USA)
Products and batteries with the symbol (crossed-out
wheeled bin) cannot be disposed as household
waste. Old electrical and electronic equipment and
batteries should be recycled at a facility capable of
handling these items and their waste byproducts.
Contact your local authority for details in locating a
recycle facility nearest to you.
Proper recycling and waste disposal will help
conserve resources whilst preventing detrimental
effects on our health and the environment.
Notice: The sign “Pb” below the symbol for
batteries indicates that this battery contains lead.
Information on Disposal of Old Electrical and Electronic Equipment and
Batteries (applicable for EU countries that have adopted separate waste
collection systems)
4025-9346N
Safety Summary
• Follow all warnings and instructions marked on the equipment or included in documentation.
• Only technically qualified service personnel are permitted to install or service the equipment.
• Be aware of and avoid contact with areas subject to high voltage or amperage. Because some
components can store dangerous charges even after power is disconnected, always discharge
components before touching.
• Never insert objects of any kind through openings in the equipment. Conductive foreign objects
could produce a short circuit that could cause fire, electrical shock, or equipment damage.
• Remove rings, watches, and other metallic objects from your body before opening equipment.
These could be electrical shock or burn hazards.
• Ensure that a proper electrostatic discharge device is used, to prevent damage to electronic
components.
• Do not attempt internal service of equipment unless another person, capable of rendering aid
and resuscitation, is present.
• Do not work near rotating fans unless absolutely necessary. Exercise caution to prevent fans
from taking in foreign objects, including hair, clothing, and loose objects.
• Use care when moving equipment, especially rack-mounted modules, which could become
unstable. Certain items may be heavy. Use proper care when lifting.
Change List for Rev K, February 2015
• Changed the content of the Programming kit P/N 950-9449 to reflect the new modular cable and
USB adapter in Part Numbers on page 13.
• Changed the instructions in Installing the ZIPR Software on page 47 and Serial Interface on
page 48 to reflect the changes made to the Programming kit P/N 950-9949.
Change List for Rev L, April 2015
• In the Programming Chapter changed all instances of a “serial port interface adapter” to “USB-
TTL adapter”.
Change List for Rev M, November 2015
• Fixed an error in the AC/DC power requirements in the Power and DC Standby specifications
on page 14.
Change List for Rev N, August 2016
•Fixed Table 1, Table 2, and Table 3 jumper settings for 2 and 4-wire systems.
Warning! For your safety and the protection of the equipment, observe these
precautions when installing or servicing Zetron equipment:
STOP
Contents
5
Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Parallel Status Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Digital Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Automatic Audio Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Reliable Audio Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Paging Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operator Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Liquid-Crystal Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Programmable Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Privacy Mode and Supervisory Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Call Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Programmable Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Tone Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Call Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Switch Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Function Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Volume Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
In-Use Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Call Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Paging Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Contents
6025-9346N
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Generic System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Setup Mode Switch Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Paging Encoder Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Unselect Volume Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Installation of System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Wall Mounting of the Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
External Audio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Supervisor Takeover Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Line Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Level Setting of System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Setting TX Audio Level Using External Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Single Remote - No External Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Multiple Remotes - No External Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Setting the Transmit Deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Adjusting the Equalization Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Controls and Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Terminal Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Key Cap Labels (Master Sheet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Installation of Key Switch Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Installing the ZIPR Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Tips on Using the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Feature Set Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Programming a Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Programming Specific to the Model 284 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Paging Format Data Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
General
7
Introduction
General
The Model 280 and Model 284 Digital Tone Remotes contain all the unique features and
audio performance required to handle critical communications in the public safety and
utility market segments. It is designed to provide the highest quality audio and most
dependable operation to fully support the rigorous demands of emergency, multi-operator
applications.
This family of Digital Tone Remotes is programmable so that they may be customized to
meet the needs of any dispatch center. They are EIA-compatible and interface seamlessly
to the most popular brands of base stations and repeaters, such as those from Motorola,
General Electric, and E.F. Johnson. They all support both 2-wire simplex and 4-wire
duplex operation. The Model 284 can support lines to four separate base stations or
repeaters.
Parallel Status Indication
Most tone remotes only display the last command sent by that particular remote. This
creates confusion in multi-operator applications where several remotes control the same
base station. This can be crucial for public safety dispatchers who need to know the exact
configuration of the base station without guesswork.
With the Model 280, however, the display of each remote can be updated when any remote
in the system sends a command to the base station. A Model 280 will show the latest base
station frequency as well as other parameters such as intercom and privacy.
The Model 284 is also capable of parallel status indication, and can provide parallel status
for all four base stations. Whenever the operator switches from one line to another, the
remote will update its display with the current status for that base station.
Introduction
8025-9346N
Digital Audio
The digital processing of voice audio is a major innovation in the performance of tone
remote controllers. It not only provides clean and sharp audio at the speaker, but it also
makes the remote easier to use.
An operator can begin speaking immediately upon pressing the transmit button. With
other tone remotes, it is necessary to wait first for the function tones to be sent to the base
station; otherwise, the initial syllables of the operator's words are clipped off because the
station was not keyed yet. The Models 280 and 284 include an innovative, momentary
digital delay that buffers the voice audio while the remote is sending the function tones.
This supports critical communications by always allowing the dispatchers to speak
instantly, instead of having to force themselves to remember to wait a second to let the
remote catch up.
The capability to speak immediately makes the Models 280 and 284 ideal for upgrading
dispatch centers where the operators are accustomed to using DC remotes. They can
transition to the new tone remote equipment without having to develop a new set of habits
when they go to transmit.
The Model 280 and 284 have the capability to mute all incoming guard and function tones
from parallel remotes. A tone detector combined with a momentary audio delay allows for
complete tone muting.
Automatic Audio Leveling
Most remote-controlled radio systems require control from multiple points. The various
audio levels are thus often quite different, depending upon their point of origin and the
path taken back to the base station. Mobile radios, parallel remotes, and distant remotes
may all sound different to the operator. The Zetron Digital Tone Remotes address these
issues through the use of high-quality, digital audio processing similar to that used in CD
players. Even if a given audio level fluctuates on a daily basis, these remotes detect the
change and compensate for it.
Reliable Audio Quality
Other tone remotes use analog filters and tone generators that require precise adjustment
and ongoing maintenance. If these designs are not serviced regularly, they will degrade
with time and temperature, and eventually become unreliable and offer poor quality audio.
The circuits in the Digital Tone Remotes, on the other hand, are crystal-controlled for
stable operation over the specified temperature range. The audio quality does not drift and
suffer with age. The remote even performs a self-test every time it is powered up to verify
proper operation.
9
General
Paging Encoder
The Digital Tone Remote is equipped with a versatile, built-in, paging encoder. This
provides an easy method of selecting specific field radios and pagers for receiving alerts
and voice pages. The encoder supports Two-Tone (both 100- and 1000-call), DTMF (all
16 tone pairs), Five-Tone signaling (EIA, CCIR, ZVEI tone groups), and Pulsed-Tone
Dialing. Since it is built-in to the remote, it saves desk space in the dispatch area and
eliminates extra wiring and interface problems during installation.
One of the most unique features of the encoder is a page-by-name database. As soon as a
pager code is entered, the name of the person assigned to that pager appears on the display
to verify the selection. If the operator does not know the pager code to begin with, he or
she can quickly scroll through the whole list of names in the database until the right choice
is found. The encoder is ergonomic and easy-to-use even during emergencies.
To further support emergency applications, up to 10 fixed paging stacks can be pre-
programmed into the Digital Tone Remotes. Like a telephone speed-dial number, a stack
page is a sequence of pages (up to 10 pager codes) sent one after the other, which is
initiated with no more key strokes than an individual page.
Operator Interface
An operator has two ways to transmit. The operator may simply press the TRANSMIT
key on the deskset and begin talking. The Digital Tone Remote picks up his or her speech
on its built-in electret microphone and an automatic level-control maintains proper gain.
The operator will hear the receive audio from the base station over the deskset's built-in
speaker.
For more private conversations, the operator can use the handset. Lifting the handset out
of its cradle automatically mutes the deskset speaker and microphone, and shifts those
functions to the handset. The TRANSMIT function is also shifted to the press-bar on the
handset. Everything is automatically shifted back to the deskset when the handset is
returned to its cradle. One exception to this automatic control swapping is the PAGE
function. Pages can only be made using the TRANSMIT button on the deskset, regardless
of whether the handset is off hook or not.
The Digital Tone Remotes also provide connections inside the deskset to support
applications requiring external desk microphones, or headset/footswitch combinations.
Liquid-Crystal Display
A high quality LCD display provides for both ease-of-use and makes the maximum
amount of information available to the operators. For quicker and more secure frequency
selection, each frequency can be displayed with an accompanying text string. For page-by-
name purposes, text strings can be assigned to individual pager codes.
To provide a visual indication that the system is operating at adequate volume levels, VU
meter is included on the display for both receive and transmit levels. For further
Introduction
10 025-9346N
convenience, a battery-backed clock is included on the display which can be programmed
for either the 12- or 24-hour format. This clock can also be disabled during setup for
dispatch centers that require the use of a central, master clock.
Programmable Key Functions
The Zetron Digital Tone Remotes have been specifically designed to support being
customized to fit the exact needs of the end user. The installer simply plugs in a PC and
selects which functions are to be assigned to the programmable keys on the remote. Once
the installer has programmed a single remote, the configuration can be saved and then
quickly uploaded into other units, allowing the installer to quickly clone as many parallel
remotes as the system requires.
The assignable functions include the following:
Since the programming is done in software, there is no need to spend time moving
jumpers or making other tedious adjustments. Adding capability to existing units is a snap
since a unit does not have to be opened to make operational changes. Adding frequencies
or pagers is as simple as editing the system programming file on a PC, so no messy, time
consuming hardware changes are required.
An additional advantage of the Digital Tone Remotes being programmed from a PC is that
the programming software can print out complete hard copy of how a remote is
programmed. This makes it easy to do the right thing and document the system setup for
future reference.
Privacy Mode and Supervisory Control
A privacy feature may be implemented during multi-remote applications. This allows an
operator to silence and lock out other, parallel Model 280s or 284s in the system. The
other operators will not be able to initiate any functions until the privacy mode is released,
however, their displays will still indicate the true status of the radio station.
• Single frequency selection
assigned to each key (F1 - F8)
• Coded/Clear
• Double frequency selection
assigned to the top row of keys
(F1/F2, etc.)
• Privacy • Intercom
• Second receiver mute On/Off • Repeat On/Off
• Mute • PL1, PL2, PL3, PL4
• Wild I, Wild II • Monitor
• 1 kHz Alert • Supervisor takeover
• Siren Alert • 5-beep Alert
• High/Low Alert • Fast Siren Alert
• Off-hook Speaker Mute • Instant Call
• Unselect Mute • Hook Disable
• Call Decoder Mute
Questo manuale è adatto per i seguenti modelli
1
Indice
Altri manuali ZETRON Telecomando
