Section 2. Specifications
2-6
ELECTRICAL SPECIFICATIONS
Output Frequency Range:
250-3500 Hz, ±1.0 dB maximum
Frequency Accuracy:
1.0±%
Audio Output Drive:
Unipolar, single-ended (unbalanced), 600 ohms
Audio Output Amplitude:
Adjustable, +5 dBm to -20 dBm (0-4 V pk-pk, adjustable into
600 ohms)
Tone Distortion:
2% nominal from pure sine wave
Digital Output:
Bipolar -7 to +7 volts
Digital Mode:
Logic signal, polarity programmable (low = digital data, high =
analog transmission)
Control Outputs:
2 sets of SPDT contacts, rated 1A at 26 VAC: one for Push-to-
Talk (PTT) and one for switching audio output between
internal tone and external voice microphone
Transmit Inhibit Input:
Senses TTL low or closure to ground. Requires that 2 seconds
of free channel be sensed before paging.
Power Supply:
12 VAC rms or 12-14 VDC at 700 ma minimum
Zetron Part No. 815-9033 Wall Transformer: 120 VAC, ±15%,
48-62 Hz input, 12 VAC at 1000 ma output
Zetron Part No. 815-9028 Wall Transformer: 220 VAC, 50 Hz
input, 12 VAC output
PHYSICAL
Operating Temp.:
0 to +65 degrees Celsius
Size:
2.7 in. high x 7.6 in. wide x 7.8 in. deep
Weight: 19
oz.
Case:
Desktop, high-impact plastic
