
PAGING TRANSMITTER INTERFACE
The paging transmier interface is accomplished through the
Radio Staon card plugged into the Series 2000 chassis. The
Radio Staon card is quite versale and can be adapted to
many dierent transmier control applicaons. Consult Zetron
for specic applicaons.
Direct Transmitter Control
For direct control of a paging transmier, digital outputs from
the Radio Staon card can modulate the FSK (frequency
shi keying) input of the paging transmier and change its
modulaon between analog (AC) and digital (DC) modes.
Remote Transmitter Control
The Series 2000 paging terminal is capable of controlling
remote transmiers by encoding the paging site address,
analog/digital mode, and transmier key-up informaon as
audio tone informaon (Motorola PURC
®
tone protocol) and
sending the data over telephone lines, microwave or a radio
link.
Oponally, Zetron’s Model 66 Transmier Control panel can be
used at the transmier site for controlling transmiers that do
not support the PURC
®
protocol.
The Model 68 Transmier System Controller is an ideal
opon for providing cost eecve transmier control for
systems where high throughput is not an issue. The Model
VOICE MESSAGING WITH PAGESAVER
The PageSaver opon puts the most-asked-for features of
voice messaging/retrieval systems right inside your Zetron
paging terminal, eliminang expensive external voice
messaging systems. With PageSaver you can: rent voice
message boxes, insure voice and numeric pages by pung
them in message boxes so subscribers can replay them over
the phone, page subscribers when a message is deposited
in their message box, even oer special announcement
telephone numbers. Combining paging and messaging
simplies management, minimizes the number of phone lines,
and reduces overall cost.
PageSaver comes standard with 72 hours of voice storage,
available for all the dierent types of messages. The number,
length, and retenon me of each subscriber’s messages,
pages, and voice greengs can be tailored by the operator.
The Model 2200 can also be equipped with mirrored disk
drives which backup personal prompts in the event of a drive
malfuncon.
A terminal with the PageSaver opon allows each subscriber
any combinaon of the following opons:
Voice Message Box With Notify
This service beeps a subscriber’s pager every me a message is
deposited in their message box.
Voice Messagebox
Like a personal answering machine, a voice messagebox
records messages from phone callers for later phone retrieval
by the subscriber.
Announcement
Subscribers with or without pagers can record voice messages
that replay over their assigned telephone number.
Paging
This is tradional tone-only, tone-and-voice, and display
paging.
Paging With Insurance
If a subscriber misses or doesn’t understand a voice or numeric
page, they can phone in and hear it again.
Call Forward
A subscriber can have two pre-programmed numbers which
forward to another subscriber.
SIMULCAST THROUGH MODEL 600/620
The Series 2000 paging terminal can be interfaced to Zetron’s
High Speed Simulcast Paging System for ecient wide-area
paging coverage.
The High Speed Simulcast Paging System uses ming
informaon from the Global Posioning System (GPS) to
synchronize the transmission of digital paging signals to
very ght tolerances. This provides the microsecond ming
accuracy necessary for high-speed simulcast paging with
protocols such as POCSAG and FLEX®.
The system consists of the Model 600 Wireless Data
Manager (Source Unit) and mulple (up to 1000) Model
620 Wireless Data Encoders (Desnaon Units). The link
between the Source and Desnaon units may be any type (or
combinaon) of link that can reliably transport data. Designed
for nonproprietary transmiers, the system is ideal for cost
eecve build-out of new transmier sites for public or private
paging system operators.
Standard features include encoding for POCSAG (512, 1200
and 2400 baud) and basic FLEX (1600), support for up to
1000 desnaons with TNPP roung and zoning capabilies,
mulfrequency transmier control, Trimble Acume 2000
compable GPS interface, tradional two-level digital
transmier interface, and mulple user-denable input/
output ports. Oponal features include enhanced four-level
FLEX (3200 and 6400 baud) for the I20 transmier interface,
and support for other GPS devices.
68 allows a Series 2000 terminal with a single Radio Staon
card to selecvely address up to 16 links to transmiers and
transmier systems.
Shared Channel Support
Some paging channels are shared with co-channel carriers. In
these systems, it is necessary for the transmier sites to nofy
the paging terminal when the channel is clear for transmission.
The Radio Staon card recognizes the COR/CAS signal (from a
receiver monitoring the frequency). The paging terminal stores
and sends pages desned for that zone when the “busy signal”
is cleared.
Multiple Addresses
In low trac situaons, wide-area paging systems can be
designed to avoid the expense of simulcast equipment. By
arranging the geographical paging area into zones that do
not overlap, the paging terminal can select each zone in
sequence and reach all paging subscribers. With the Mulple
Address opon, up to 30 transmiers in a single zone can be
addressed.
Morse Code ID
The Radio Staon card sends the Morse code staon ID to
maintain FCC compliance.
Kommentare zu diesen Handbüchern