M12 Switch | Intrinsically Safe Ethernet Switchboard | Waterproof Ethernet Switch | Xallcom Technology | Empower the Communication in Harsh Environment

PRODUCTS

4-series:Communication Module

Home - Products - 4-series:Communication Module -

X4S02：2-port Channel FXS module

1.Product description

The 2-port FXS module is internally integrated with functional modules such DSP(Digital Single Processor) ,codec, SLIC(Subscriber Line interface circult),Interface protection,DC/DC conventer,providing all port functions required by 2-port FXS interface.FXS module adopts 3.3V and 12V mixed power supply method,3.3V is the internal working voltage,the 12V power supply is converted into VBAT to power supply by internal DC/DC converter for SLIC and external feeding and ring.FXS module can confirgure and control parameters such as cording mode,interface impedacne,feeding,ringing,DTMF,etc. by SPI interface,FXS module communicates with external data through PCM/GCI data interface,and the clock frequency and time slot allocation of the interface are flexibly configured.

2.Main function

* single module integrates 2-ports FXS interface circuits

* the seven functions of BORSCHT required by the subscriber line interface circuit,including feeding, overvoltage protection, ringing, monitoring, encoding and decoding, mixing and testing functions

* built-in DC/DC converter,the module completes the conversion of VBAT power required for feeding and ringing.

* support DTMF production and detection functions

* support Caller ID production and on-hook transmission
* support the production of signal tone(dial tone,busy tone,ring back tone,etc.)

* support A-law PCM coding,u-law PCM coding and 16-bit linear coding and decoding

* parameters are programmable such as interface impedance, feed (feed current), ringing (frequency, amplitude, waveform) and coding (coding format, gain, time slot).

* intelligent dynamic power adjustment, low heat generation

3.Product specification

3.1 Power supply

No.	Parameter	Minimum	Typical	Maximum	Unit	Remark
1	Working voltageVCC	3.15	3.3	3.45	V
2	Auxiliary voltageVDC	10.8	12	13.2	V
3	Working power supply current I_VCC	-	160	-	mA	All interfaces are in the hang state
4		-	200	-	mA	2-channel off-hook, feed current 20 mA, ring impedance 1500 Ω
5		-	180	-	mA	2-channel ringing, 60VAC, 25HZ sine wave ringing current, ringing impedance 1REN
6	Auxiliary power supply current I_VDC	-	60	-	mA	All interfaces are in the hang state
7		-	540	-	mA	2-channel off-hook, feed current 20 mA, ring impedance 1500 Ω
8		-	240	-	mA	2-channel ringing, 60VAC, 25HZ sine wave ringing current, ringing impedance 1REN

3.2 FXS interface

No.	Parameter	Minimum	Typical	Maximum	Unit	Remark
1	feed voltage VTR	-	-48	-	V
2	feed current I_LOOP	10	20	40	mA	Configurable by SPI interface
3	Maximum ring resistance R_LOOP	-	-	2000	Ω
4	Ringing voltage Vring	-	75	110	V_PK	Configurable by SPI interface
5	Ring frequency	-	25	-	Hz	Configurable by SPI interface
6	Interface impedance	-	600	-	Ω
7	Transmit gain（A/D）	-	0	-	dB	Configurable by SPI interface
8	Receive gain（D/A）	-	-7	--	dB	Configurable by SPI interface
9	Frequency characteristic	-0.5	-	+0.5	dB	Frequency range 300～3000Hz
9	Frequency characteristic	-1.4	-	+0.5	dB	Frequency range 3000～3400Hz
10	Level characteristic	-0.25	-	0.25	dB	Input level 3dB～-37dB，reference level-10dBm
		-0.5	-	0.5	dB	Input level-37dB～-50dB，reference level-10dBm
		-1	-	1	dB	Input level-50dB～-60dB，reference level-10dBm
11	Return loss	26	30	-	dB	frequency range 300～3400Hz
12	Quantization distortion	25	-	-	dB	Input level-45～-40 dBm0
		30	-	-	dB	input level-40～-30 dBm0
		35.5	-	-	dB	input level-30～3.14 dBm0
13	Idle noise	-	-	-75	dBmP

3.3 PCM interface

* Total line rate: 512Kbps~8.192Mbps

* Frame rate: 8Khz

* Slot width and position: configurable

3.4 SPI interface

* Total line rate: up to 16Mbps

* Operation method: support 8bit and 16bit

3.5 Reset signal

* Function: external reset control for the module, low level is effective, and pulse width is required to be ≥ 1ms
* Type: input, 10K Ω pull-up resistance inside the module
* Code type: NRZ code
* Signal level: TTL/CMOS (3.3V)

3.6 Working environment

* working temperature: -40~85℃

* storage temperature: -50~85℃

3.7 Product size: 34x29x12.4mm

4.Product application

X4S02 can be applied to the following devices:
* SPC switch
* VOIP gateway and Routing device

* Voice gateway

* Voice dispatching device
* xDSL Integrated Access Devices (IADs)
* Optical communication network terminal/unit

* Wireless fixed terminal (WFT)

Previous：X4O04：4-port Channel FXO module

Next：X4M9228：2*10G Fiber+8*G copper L2 Managed Board