Super virtual special Ethernet equipment (TST-CON16) is the user terminal access equipment developed and manufactured by Guangzhou Youke Communication Equipment Co., Ltd. through using the special integrated circuit of independent development. This equipment takes the super-large scale special integrated circuit as the core to form the Ethernet data that realizes the access of user data through E1 transmission network, which makes Ethernet data transmit in multiple E1, breaches the bandwidth limitation of single E1, and can very conveniently use the existing rich E1 resource in public network to rapidly establish the broadband Ethernet data network.

　TST-CON16 hasn’t any special requirement to E1 channel and can automatically implement the fault-tolerance to E1; even though the partial E1 channel generates failure, the equipment only reduces the throughput rate of data and can’t interrupt the transmission of data. The configuration of TST-CON16 is flexible and its maintenance is simple, and it simultaneously provides the complete network management functions.

Typical Networking Application:

Information for panel indicator light:

Indicator light of power supply (POWER, green light): light at normal status.
Ethernet interface full duplex indicator light (DUP, green light): the full duplex lights when the Ethernet interface works.
Ethernet interface conflict indicator light (COL, yellow light): twinkle when the Ethernet interface conflicts.
Ethernet interface rate indicator light (10/100, green light): light when the Ethernet interface works at a rate of 100M .
Ethernet interface working indicator light (L/A, green light): light when the Ethernet interface connects, and twinkle when the data flow exists.
E1 interface alarm indicator light (ALARM, yellow light): twinkle when E1 channel generates failure, and always light when receiving AIS.
E1 interface working indicator light (WORK, green light): light when E1 interface receives signals.
System working indicator light (RUN, green light): twinkle when the system normally works.
System alarm indicator light (ALARM, yellow light): light when the system generates alarm.
Management interface （CONSOLE）。
Dial switch (SW): when the equipment parameters are set as the configuration of dial switch, the dial switch is effective.

Main Characteristics
◆ Adopt large scale chip, simple circuit, low power dissipation and high reliability
◆ Provide one 10/100M Base-T port, support 10/100M full duplex , half duplex and automatic negotiation mechanism.
◆ Provide 16-way E1 configuration, E1 interface impedance supports 75Ω.
◆ No-delay demand for E1 channel.
◆ Support priority function 802.1p.
◆ Support flow control function based on 802.3x
◆ Support Ethernet frame transparent transmission.
◆ Provide one management interface, which can flexibly set functions of equipments.
◆ Have the complete alarm and status indication.
◆ Adapt to many kinds of power supply environments.

Main Technical Indexes and Functions
◆ Indexes of power supply
DC power supply voltage: -48VDC; tolerance range: -36V~-72V; power supply ripple: ≤240mVp-p
AC power supply voltage: 220VAC±20% 50HZ; power dissipation: ≤10W
◆ Indexes of Ethernet interface
　 Physical interface type ：RJ-45 Interface rate ：10Mbit/s or 100Mbit/s
Working way: full duplex Conform to IEEE802.3 Standard
◆ E1 electrical interface index
Number of sub-circuit：16
Nominal rate: 2048Kbps, tolerance±50ppm
Interface code pattern：HDB3
Interface impedance: 75Ω(imbalance) or 120Ω(balance)
Electrical characteristics of digital interface: conform to ITU-TG703 suggestion
Jitter transfer characteristics：conform to ITU-TG.823 suggestion
Input jitter tolerance: conform to ITU-TG.823 suggestion
Output jitter: conform to ITU-TG823 suggestion
Level：±2.37V±10% or ±3.00V±10%
Interface connector： CC4
◆ Management interface
Interface mode: RS-232
Interface level：RS-232 level
Physical interface：RJ-45
Baud rate of management interface：57600bit/s
◆ Alarm function
equipment provides E1 indicator light alarm function
◆ Environmental demand
Working environment: environmental temperature：0～50℃ relative humidity：20～90%
Storage environment: environmental temperature：-20～65℃ relative humidity： 10～95%