51
C
EL
L
INE
®
AS-RS-AX-DX
USER MANUAL
© AUDIOTEL Engineering S.p.A.
2.3 TECHNICAL FEATURES
2.3.1 Physical description
SIZE
183mm x 125mm x 42mm
WEIGHT
300g
OPERATING TEMPERATURE
From –20°C to +55°C
HUMIDITY
From 0 a 95% not condensed
2.3.2 External connections
TELEPHONES
RJ11 (PSTN Connection Point LINE and Terminal Equipment T.E.)
RS-232 PORT
DB-9 serial interface
GSM ANTENNA
SMA plug female (50
Ω
)
SIM CARD
Plug-in, 3V type
POWER SUPPLY
9-30Vdc, 1A
2.3.3 Features of the PSTN connection point (LINE)
INTERFACE
RJ-11 4/6
CALL MODE
Originated call (MOC)
Terminated call (MTC)
INPUT DIALLING
Pulse - DTMF
COMPLY WITH
ETSI EG 201 185
CALL CURRENT LEVEL (RING)
35Vrms ± 10%
CALL CURRENT FREQUENCY
25Hz ± 5%
CALL CURRENT MODULATION
1,0s emission; 4,0s silence
LOCAL TONE FREQUENCY
425Hz ± 1%
LOCAL TONE MODULATION ACCURANCY
(EMISSION/SILENCE)
± 1%
CENTRAL TONE MODULATION
(REQUEST TO DIAL)
Programmable
ENGAGED AND CONGESTION
TONE MODULATION
Programmable
LOOP CURRENT
≤
40mA with 0
Ω
of line resistance
CHARACTERISTIC PBX IMPEDANCE
750
Ω
// 150nF + 270
Ω
MAXIMUM TELEPHONE LINE LENGHT
500 metres
2.3.4 Features of the Terminal Equipment (T.E.)
COMPLY WITH
ETSI TBR21
2.3.5 Data service (via RS-232 interface)
INTERFACE
RS232 - DB9 femal connector
TRASMISSION SPEED
ETSI GSM 07.01, 07.02, 04.21 (default 9600bps)
ENGLISH