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AG2410 Schematic ( PDF Datasheet ) - Silver

Teilenummer AG2410
Beschreibung HIGH PERFORMANCE QUAD TRUNK
Hersteller Silver
Logo Silver Logo 




Gesamt 11 Seiten
AG2410 Datasheet, Funktion
www.DataSheet4U.com
Silver
TELECOM
V1-4 February 2005
Ag2410Data Sheet
HIGH PERFORMANCE
QUAD TRUNK
FEATURES
TIP1
RING1
TIP2
RING2
TRUNK
1
TRUNK
2
VIN1
VOUT1
VIN2
VOUT2
• 4 highly featured Trunks (COIC, FXO) in a
single Module.
• Magnetic isolation providing high common
mode rejection (CMRR) for use in
un-grounded systems.
• Highly integrated with on board loop switch
and integral diode bridge.
TIP3
RING3
TIP4
RING4
TRUNK
3
TRUNK
4
VIN3
VOUT3
VIN4
VOUT4
• Loop Start operation with On-Hook
reception and reversal detect (for Caller
Line ID and remote metering).
• Ringing detection and Loop Current
detection.
• Meets requirements of EN60950/UL1950,
and FCC Pt68.
Control and
Supervision
• Minimum number of external components,
single +5V system side power supply.
• Programmable d.c. mask.
DESCRIPTION
The Silver Telecom Ag2410 comprises four
individual Trunk Circuits in a single Module.
The combination of features and packaging
offers extremely efficient use of board area,
saving significantly on system size and cost.
The Ag2410 has been designed to work with
600R line impedance and meets international
safety and regulatory requirements.
In addition to the features shown above the
Ag2410 allows flexible programming of many
functions, including the dc voltage mask.
• Silver Telecom “design-in” assistance.
Each circuit requires a minimum of external
components and has been specified for ease
of use, to reduce time to market.
The system interface has been designed for
direct connection to popular Codecs of both
the audio and signalling connections.
The Ag2410 is designed for applications
where there is a high level of common mode
interference, such as PABX, long loop
applications and systems without a ground.
© Silver Telecom 2005






AG2410 Datasheet, Funktion
V1.4 February 2005
Data Sheet
On-Hook is becoming increasingly common, whether
for Caller Line I.D. or for telemetry purposes. The
Ag2410 can receive signals On-Hook, presenting a
high impedance to the line, i.e. while drawing a very
small current (5µA approx) from the line.
3.5 Ringer Load Networks
The “dummy ringer” is usually a capacitive/resistive
load which is connected across TIP/RING. During a
call it is of sufficiently high impedance not to affect the
operation of the interface. The dummy ringer is
integral to the Ag2410, and is suitable for CTR21
(Europe), USA and Asia.
For other dummy ringer requirements not covered in
this datasheet, please contact Silver Telecom, or their
local representative.
4.0 Device Protection.
As with many of the requirements which must be met
Ag2410
HIGH PERFORMANCE QUAD TRUNK
by the Ag2410 the device protection is dependent upon
regulatory standards in the market in which the
equipment is deployed. Some examples are given
below, but these are not exhaustive.
4.1 FCC Pt 68 Requirements.
To withstand the FCC Pt68 longitudinal voltage surge
of 1500V no protection is required as the barrier will
withstand 1500V peak voltage to GND.
To withstand the FCC Pt68 metallic surges at 800V
requires a 130V AC varistor (which clamps at 300V
which is the rating of the loop switch transistor). A
14mm device should be used to withstand the two
100A 10/560us surges.
Examples of suitable devices are:-
Joyin JVR-14N201K;
Walsin VZ14D201KBS
Note: If varistors to ground are used for added
protection (e.g. more than 1500V may be seen in the
Protection circuit depends
upon precise application
R1
Protection Circuit
+
C15
0V
R2
DM a1
DM b1
TIP1
RING1
V REF1
DM a2
DM b2
TIP2
Protection Circuit
+
C16
0V
R3
RING2
V REF2
DM a3
DM b3
TIP3
Protection Circuit
+
C17
0V
R4
RING3
V REF3
DM a4
DM b4
TIP4
Protection Circuit
+
C18
0V
RING4
V REF4
0V
Ag2410
Quad
Trunk
Circuit
Silver
TE L EC OM
GND
VCC
C13
+
C14
Zb1
V IN1
V OUT1
RS1
LSC1
Zb2
V IN2
V OUT2
RS2
LSC2
Zb3
V IN3
V OUT3
RS3
LSC3
Zb4
V IN4
V OUT4
RS4
LSC4
For 600R line and balance impedance:
(as required by the QSLAC)
R9 C9
R13 R5
0V
C1
VOUT1
C2
VIN1
CD11
C31
R10 C10
AMD
R14 R6
0V
C3
C4
QSLAC
CODEC
VOUT2
VIN2
CD12
C32
R15
R16
5V
R11 C11
R7 0V
C5
C6
R12 C12
VOUT3
VIN3
CD13
C33
R6 0V
C7
VOUT4
C8
VIN4
CD14
C34
R1-4 = 270k
R5-R8 = 51k
R9-12 = 0
R13-16 = 36k
C1-8, C13 = 100nF
C9-12 = 47pF
C14 = 10uF
C15-C18 = 100uF
Processor
Interface
Figure 4: A 4 Channel Circuit Using the AMD QSLAC
© Silver Telecom 2005
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