Model 5 Encoder
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.
CONFIGURATION AND FEATURES
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.
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 fivetone 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.
|Formats||Single format two-tone
Mixed format, 10 leading digits.
Alert tone. Disable leading digit
|Two-Tone Capacity||100 or 1000 calls per leading digit (GE, Motorola Quick Call II)|
|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|
|Display||4-digit, 7-segment readout. �Transmit�, �Paging�, and �Talk� indicators|
|Re-Page||Unit holds prior pager number in display for paging again by simply pressing PAGE|
|Tone Groups||Motorola Quick-Call II:
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||Motorola-BCDEFGHJKLMNPQRSTUV WY, MT; GE-X,Y,Z|
|Tone Timing||Eight standard timing selections|
|Diagonal Tone||None (group call), 569.1, 979.1, 742.5|
|Diagonal Placement||1st Tone or 2nd Tone|
|Tone Series||EIA, CCIR, ZVEI|
|Call Size||2- to 6-digit entry|
First Digit Strap
Second Digit Strap
Third Digit Strap
|0 - 9, or no preamble
0 - 9
0 - 9
0 - 9
|Dual Address||None, odd capcodes, or enter extra digit|
|Repeats||0 to 3|
|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|
|Size||2.5" H x 5.5" W x 4.8" D Desktop high-impact plastic case|
WISCO International, Inc. -
MIAMI, FL U.S.A.
Fax: E-mail: email@example.com