Telephone Line Interface Specifications - VTech VTH1930 Product Specification

TITLE
MODEL
6.4

Telephone Line Interface Specifications

Specifications marked with * are guaranteed at the nominal testing temperature and voltage on
all units with the use of automated production test equipment (ATE)
Parameter
* DTMF Frequency Tolerance
* DTMF Low Group Tone Level
* DTMF High Group Tone Level
DTMF Combined Tone Level
DTMF High Group Preemphasis (Twist)
Pulse Dialling Break Duration
Pulse Dialling Make Duration
Pulse Dialling Rate
Ring Detection Frequency
Ring Response Voltage
Ring No-Response Voltage
Notes: 1. Measured across a 900Ω terminating impedance
2. The ringer must ring with signals within this range
3. Measured with a frequency of 20Hz
4. The ringer must not ring with signals within this range
Reference: PRC 00B6
This document is proprietary to V
Specifications are preliminary and are subject to change without notice.
V E
TECH NGINEERING
Product Specification
VTH1930 (Wireless Headset Phone)
1
1
1
2,3
3
4
E C
TECH NGINEERING ANADA
C
ANADA
Min
-1.5
-7.5
-5.5
15
40
Revision: 0
L .
TD
L .
TD
Typ Max Units
+1.5 %
-5.0 -4.0 dBm
-3.0 -2.0 dBm
+2.0 dBm
2.0 4.0 dB
60 ms
40 ms
10 pps
68 Hz
Vrms
15 Vrms
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