Fxs - Televes 769501 User Manual

GPON ONT

3.1.4 FXS

Items
Pulse Dialling
DTMF
Clip
Clip on Call Wait-
ing
DC voltage (V)
Loop Current
Characteristics (A)
Ifeed Max. (A)
Impedance and
Transmition Re-
quirements (Ω)
ILA (A)
Ringer voltage (V) DC offset: 48V
Ringing signal
Hook flash
NOTE:
FXS interface specific parameter values vary according to country adopted standards.
769502 FXS interface specifications table values are configurable at the web management interface at
the menu Voice, item SIP basic settings, by selecting the local(Country) where the Refs. 769501-769502
will be used. Please refer to section SIP BASIC SETTING, for details on this configuration.
State
Pulse Frequency: 10 Hz (8 Hz to
12 Hz)
Pulse Relation: 66,6% (33% to
75%)
Interdigital Pause and Pre-Dial-
ling: 400 ms (min)
-
-
-
-48V (-46 to -54)
20mA (min) to 60mA (max)
45mA
Q.552 [4] (11/96) of ITU-T
220Ω+820Ω//115nF.
20 – 45 mA
AC voltage: 75Vrms +/- 0.5%
Frequency: 25Hz +/- 3%
normal ringing
on-hook - register recall/hook
flash
on-hook - register recall/hook
flash
off-hook
intervall
Table 3-2: FXS interface specifications
Description
-
According to ETSI CTR 21 [1]
According to ETSI 300 659-1
According to ETSI 300 659-2
-
-
-
A telephone that comply with transmission re-
quirements defined in CTR 38, should comply
with SLR, RLR and STMR (4.2.2.1, 4.2.2.2 and 4.2.3)
standard requisites, when connected to a FXS
interface.
5 bit parameter which sets the current limit for
DC feed (DC feed and battery switch are pro-
grammed and calibrated to ILA=26mA, VOC=48V,
VAS=3V, bshv=5V).
-
1 sec ring / 5 sec pause (interval = 6 sec).
100 msec Minimum time of recognition of "on-
hook" when hook-flash feature does
not exist
1000 msec Minimum time "on-hook" recogni-
tion when hook-flash feature does
exist
40 msec minimum time "off-hook" recogni-
tion
160msec - Time calibrated break pulse duration
400msec for register recall recognition
769501-
Refs.
24