FABIO-4CS is a modular integrated Access TDM multiplexer with 512 x 512 cross connect ability, which integrates multiple dedicated data, voice and LAN channels over multiple main (network) links. It can provide maximum 4E1 or 8E1 capacity for accessing and transmission with cross-connect capacity is 512×512 64Kbps. It provides full range of voice and digital data services to subscribers located at different locations require to interconnect and establish a voice and data network over E1 & STM1 links.

    The flexible, 1U high, 19-inch, 3-slot modular FABIO-4CS Chassis with a wide choice of I/O (user interface) modules is designed for applications ranging from small campus networks to multi-site corporate networks or extensive carrier access solutions.

    Due to FABIO-4CS's standards adherence, central office based cross-connect units (DACS) can separate voice and data, sending each to the appropriate carrier or service.

    FABIO-4CS enables carriers to successfully deploy bundled services and Internet access. The integration of a broad range of services makes FABIO-4CS a cost-effective access device, with reduced deployment and maintenance costs. The equipment conforms to international standards, ensuring compatibility in multi-vendor environments worldwide.FABIO-4CS is designed to carry Various Original Equipment Manufacturer’s Digital Axle Circuits optical fiber (STM).

    FABIO-4CS is designed to carry Various Original Equipment Manufacturer’s Digital Axle Circuits over optical fiber (STM).

Show More

       Product Features     

Key Features

Compact 1U high, 19-inch chassis

Number of uplink-slots : 1

Number of service-slots : 3

Modular construction with four (4) slots for hot-swappable I/O modules

Max. E1 channels : 4 or 8E1 with (1+1) feature

Frame structure : Supports optional CRC-4 and PCM 30/31 settings.

Timing : Internal Crystal Oscillator clock, Clock received from any link (loopback)

Versatile 64Kbps User interface : Supports FXO/FXS Voice modules with caller number display, E&M 2/4-wire module with adjustable voice gain, hotline with standard signaling tone and V.24/RS-232 low speed module

   Max. FXO/FXS channels : 30 ~ 40

   Max E&M channels : 24 ~ 32

   Max V.35 channels : 3

   Max FE channels : 3

Performance Monitor: EMS available to monitor the equipment & configure

Customer service can be allocated by on-line network operator.

Flexible network topologies : Point-to-Point , Daisy Chain.

Local and Remote Telnet support.

STM1 | STM4 : uplink module available.

Technical Specifications :


I/O modules : 4E1, FXO, FXS, Hot-line, 2/4W E&M, RS232/V.24, ETH, 8E1, STM1, C37.94

Chassis(height) : 1U, 19-inch wide

Number of Service-slots : 4 slots for I/O modules

Console port : 1 (RJ-45), Serial

Telnet port : 10/100Mbps (RJ-45), Ethernet

Voice Interface :

Channel sampling rate: 8Khz

Commanding law : A-Law

Voice Interface : 2W / 4 W Signaling FXO, FXS, E&M

Frequency : 300 to 3400Hz

Impedance : 600Ohms

Ring current voltage : 75 ± 15V AC, 25 ± 3 Hz

Data Interface

Low speed data interface : RS232, V.24

Characteristic : ITU-T V.24

Data Format : Asynchronous, Synchronous

Asynchronous data : upto 19.2 Kbps

Synchronous data : 64 Kbps ~ 128 Kbps

Data Interface V35:

Characteristic : ITU-T V35

Bit Rate : N x 64 Kbps, N=1~31

Uplink Interfaces(E1):

Supports 512×512 cross connect ability based on 64K with signaling

Bit rate : 2048 +/- 50 ppm

Code : HDB3

Impedance : 120 Ohms Balanced

Electrical characteristics : ITU-T G.703

Transfer characteristics : ITU-T G.823

Jitter performance : ITU-T G.823

Data Interface V35:


Disaster Management Communication (IR):

FABIO series devices are suitable for disaster communication for extending various services to mid-section in Indian Railways

Power Supply:

AC : 100V ~ 240V AC (220V nom) DC to AC adaptor and DC : -36V ~ -72V (nom : -48V DC)


Operating Temperature : -5 to +55°C

Operating Humidity : 5% to 99%

Air pressure : 86 to 106 KPa

      FABIO-4CS App Diagramme    

Number of Service-slots : 4 slots for I/O modules

Telnet port : 10/100Mbps (RJ-45), Ethernet

Frequency : 300 to 3400Hz

Bit rate : 2048 +/- 50 ppm

Number of uplink-slots : 1

Console port : 1 (RJ-45), Serial

Channel sampling rate : 8Khz


Local and Remote Telnet support