Televes 769501 - Fxs

24
GPON ONT
3.1.4 FXS
Items State Description
Pulse Dialling 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)
-
DTMF - According to ETSI CTR 21 [1]
Clip - According to ETSI 300 659-1
Clip on Call Wait-
ing
- According to ETSI 300 659-2
DC voltage (V) -48V (-46 to -54) -
Loop Current
Characteristics (A)
20mA (min) to 60mA (max) -
Ifeed Max. (A) 45mA -
Impedance and
Transmition Re-
quirements (Ω)
Q.552 [4] (11/96) of ITU-T
220Ω+820Ω//115nF.
A telephone that comply with transmission re-
quirements dened 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.
ILA (A) 20 – 45 mA 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).
Ringer voltage (V) DC oset: 48V
AC voltage: 75Vrms +/- 0.5%
Frequency: 25Hz +/- 3%
-
Ringing signal normal ringing 1 sec ring / 5 sec pause (interval = 6 sec).
Hook ash on-hook - register recall/hook
ash
100 msec Minimum time of recognition of “on-
hook” when hook-ash feature does
not exist
on-hook - register recall/hook
ash
1000 msec Minimum time “on-hook” recogni-
tion when hook-ash feature does
exist
o-hook 40 msec minimum time “o-hook” recogni-
tion
intervall 160msec -
400msec
Time calibrated break pulse duration
for register recall recognition
NOTE:
FXS interface specic parameter values vary according to country adopted standards. Refs. 769501-
769502 FXS interface specications table values are congurable 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 conguration.
Table 3-2: FXS interface specications