M5 Encoder Brochure - American International Radio

M5 Encoder Brochure - American International Radio
model 5
Configuration and features
Ideal for volunteer fire departments and other public
safety applications
Two-tone paging (GE, Motorola Quick Call II)
Five-tone paging
Built-in microphone for tone-and-voice pagers
The Model 5 contains several programmable features to
aid in system customization. By entering a special code
on the 12-digit keypad, the encoder can be placed in
the programming mode which allows the encoder to be
configured for each type of pager being used.
Programmable keyup delay
Programmable cap code capacity
Automatic transmitter keying and mic muting
Single key re-page
The Zetron Model 5 Communications Encoder is a
compact low-cost desktop paging encoder for selective
calling of two-tone and five-tone sequential pagers. A
12-digit high-quality keypad allows for manual entry of
pager codes. A four-digit display indicates the number
of the pager being called. The pager number remains
on the display after the paging sequence is complete,
allowing immediate re-page without reentry of the
pager number. Three LEDs indicate when the encoder
is paging, transmitting, and when the microphone
is open for the voice transmission to tone-and-voice
pagers. The voice transmission can be made through
the built-in electret microphone or through a normal
desk microphone. The built-in microphone, which
can also be used to make voice broadcasts over the
transmitter, is equipped with automatic gain control for
optimum voice pick-up. An additional feature for toneand-voice pagers is an alert tone, which when selected,
precedes the voice message to notify the recipient that
a voice message is to follow. A choice of alert tones is
provided. (For custom or Plectron pagers, use Zetron
Model 15P.)
For two-tone paging, the call size can be set to 100 or
1000, eliminating the need to enter one or more leading
digits of the pager number. Tone groups can be selected
for the 100-pager call size, or code plans may be chosen
for the 1000-pager call size. The Model 5 can also signal
five-tone pagers. The call size for five-tone pagers can
be set to 100, 1000, 10,000, 100,000 or 1,000,000 cap
codes. The tone series can be set to EIA, CCIR, or ZVEI
signaling formats.
The programming mode also allows the selection of
several features that enhance operation of the encoder.
Such features include transmitter keyup delay, talk time
duration, auto page, and internal/external microphone.
The keyup delay, to ensure that the transmitter is fully
keyed before the first tone is sent, can be set to any
value from zero to 2 seconds, in 0.1-second increments.
The talk time duration for the voice portion of the
transmission can be set to anywhere from zero to 59
seconds, in one-second increments. The talk time can
be extended as necessary beyond the selected value
by holding a key on the keypad or the PTT switch on the
desk microphone.
Power is provided by a 12-volt wall transformer or the
transmitter’s +12V DC supply may be used. An optional
220V AC transformer is available.
First Digit Strap
Second Digit Strap
Single format two-tone or five-tone. Mixed format, 10 leading digits.
Alert tone. Disable leading digit
Third Digit Strap
Dual Address
None, odd capcodes, or enter extra Two-Tone Capacity
100 or 1000 calls per leading digit
(GE, Motorola Quick Call II)
0 to 3
Five-Tone Capacity
2- to 6-digit
(100 to 1 million calls) per leading digit. Auto-Page ON or OFF
Key-Up Delay
0 to 2 seconds
Alert Tones
Five-beep or warble Selectable per format
Talk Time
0 to 59 seconds
Selectable ON/OFF per leading digit
May be extended by holding PAGE key
Talk Audio
From internal mic or external source
System Tests
Test tone sequences for transmit setup
Local PTT/Mic
Replaces local microphone.
AGC for good quality audio
4-digit, 7-segment readout.
“Transmit”, “Paging”, and “Talk” indicators
Unit holds prior pager number in display for paging again by simply pressing PAGE
Tone Groups
Motorola Quick-Call II: 1,2,3,4,5,6,10,11
Quick-Call I: A, B, Z excluding 977.2, 1011.6, 1047.1, 1084.0, 1122.1, and 1161.4 Hz
G.E.: A,B,C
Code Plans
Tone Timing
Eight standard timing selections
Diagonal Tone
None (group call), 569.1, 979.1, 742.5
Diagonal Placement
1st Tone or 2nd Tone
Frequency Range
250-3500Hz, +/- 1.5dB max with
pre-emphasis compensation
Frequency Accuracy
+/- 0.1%
Audio Output
Ground referred, impedance 600/6K-ohm selectable
Audio Level
Adjustable, -30dBm to +12dBm (0-4.4V pk-pk, adjustable into 600 ohms)
Tone Distortion
2% typical
Built-in Mic
Low distortion electret
Automatic Gain
Correct transmit level over 30dB range
PTT Output
Relay contact to ground; 1 A at 48V DC
Channel Busy Input
DC voltage or closure to ground (10K pull-up); lo < 1.0 volt, hi > 2.5 volts, selectable polarity
Power Supply
DC supply; 11-18 V DC at 350 mA max. Wall xfmr; 105-135V AC, 60Hz (P/N 815-9015)
Wall xfmr; 180-250V AC, 50/60Hz (P/N 815-9027)
Operating Temp.
0 to +60 degrees Celsius
2.5" H x 5.5" W x 4.8" D
Desktop high-impact plastic case
10 oz.
Tone Series
Call Size
2- to 6-digit entry
Preamble Strap
0 - 9, or no preamble
For more information on this and other Zetron products, contact:
PO Box 97004 Redmond, WA 98073-9704 USA
TEL 425 820 6363
FAX 425 820 7031 ZETRON UK
27-29 Campbell Court Bramley TADLEY
Basingstoke RG26 5EG
TEL +44 (0)1256 880663
FAX +44 (0)1256 880491
PO Box 3045 Stafford Mail Centre
Stafford QLD 4053 Australia
TEL +61 7 3856 4888
FAX +61 7 3356 6877
au@zetron.com WWW.ZETRON.COM
All trademarks and registered
trademarks are the property of
their respective owners.
See Zetron price list for option pricing. Specifications subject to change without notice 005-0260H February 2007
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF