ETP-500
Series Analog Call Station
Installation & Operation Manual
Page
20
of
23
Rev. 3/16/2017
Copyright 2017 Talkaphone
• 7530 North Natchez Avenue • Niles, Illinois 60714 • Phone 773.539.1100 • [email protected] • www.talkaphone.com.
All prices and specifications are subject to change without notice. Talk-A-Phone, Talkaphone, Scream Alert, WEBS and WEBS Contact are registered trademarks of Talkaphone All rights reserved.
10. Federal Communications Commission Information MODE I Operation
MODE I Operation
The following criteria must be met by a phone line to insure proper functionality of the FCC approved
equipment. All voltages use Tip as ground when measuring.
1. On-Hook voltage must be less than or equal to
–
36 V (-50 V standard).
2. Off-Hook should be recognized in a maximum time of 300 ms.
3. At an Off-Hook voltage of
–
15 V, the current that is supplied must be no less than 20 mA and no
more than 120 mA.
4. Dial tone must consist of 350 Hz and 450 Hz tones at
–
17 dB ± 0.5%.
5. The telephone line must generate Ring-Back consisting of 440 Hz and 480 Hz tones at
–
17 dB ±
0.5%, with a duty cycle of 1.6 seconds on
—
4.8 seconds off ± 10% interrupted at 20 Hz.
6. The telephone line must generate a busy signal consisting of 480 Hz and 620 Hz tones at
–
17 dB ±
0.5%, with a duty cycle of 500 ms on
—
500 ms off.
7. The telephone line must be able to recognize or send the following frequencies in order to decode
or transmit DTMF:
a) 685 Hz
—
709 Hz
Row 1
b) 757 Hz
—
784 Hz
Row 2
c) 837 Hz
—
867 Hz
Row 3
d) 925 Hz
—
957 Hz
Row 4
e) 1189 Hz
—
1229 Hz Column 1 (1, 4, 7, *)
f) 1314 Hz
—
1358 Hz Column 2 (2, 5, 8, 0)
g) 1453 Hz
—
1501 Hz Column 3 (3, 6, 9, #)
h) 1607 Hz
—
1659 Hz Column 4 (A, B, C, D)
8. When dialing, the telephone line should require a minimum tone pulse ON time of 40 ms, as well as
a minimum between tone gap of 40 ms.
9. The telephone line should support and match with a 600W AC impedance, as well as a DC
resistance of 100 W
—
200 W.
10. The telephone line should recognize a 450ms hang-up as a disconnect signal.
MODE II and MODE III Operation
Talkaphone phones can be used with most PBX systems with non-standard dial tones, ring-backs, busy
signals and hang-ups.
