Telephone Line Interface Specification - VTech PDL GX Manual

V
TECH
TITLE PDL GX Internal Product Specification
MODEL PDL GX

4.4 Telephone Line Interface Specification

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 Pre-emphasis (Twist)
Pulse Dialing Break Duration
Pulse Dialing Make Duration
Pulse Dialing 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 00DM
This document is proprietary to V
Specifications are preliminary and are subject to change without notice.
E
NGINEERING
1
1
1
2,3
3
4
Revision: 3.0
E C L
TECH NGINEERING ANADA
C L
ANADA
Min
-1.5
-7.5
-5.5
15
40
.
TD
IMITED
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
25 Vrms
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