VCL Products > Automatic Protection Switch > E3 Failover Switch
E3 Failover (E3 Protection) Switch
Valiant's E3 Fail Over (E3 Protection) Switch allows the user to connect a single E3 line from the telephone company to an "active", as well as to a "standby" E3 terminal, such as data server / router etc., at the customer premises.
How it works? - In the event of the failure of the data server / router connected to the "A / active" port of the E3 Protection (Fail-Over) Switch, it shall automatically switch and connect the E3 line from the telephone company to the data server / router on the "B / standby" port. This ensures minimum downtime - which would have otherwise occurred due to equipment failure connected to the "A / active" port. This equipment may be used to enhance the reliability and the efficiency of the customer's data network.
E3 Protection Fail-Over Switch Upto 2 x E3 LinksFeatures & Highlights
- Allows the user to connect a E3 line from the Telephone Company and to switch it automatically between an active and a standby E3 terminal at the customer premises. The switching criterion is Loss Of Signal.
- Available in a single E3 line and a two E3 line version.
- Independent switching for each E3 line (in 2 x E3 line version).
- Built-in real-time clock / real-time logging maintains a history of all events.
- Remotely accessible over a TCP-IP networks. Allows the user to access and carry out maintenance, or / and switch the E3 line between the "active" and "standby" E3 terminals, remotely, if required.
- Dual AC (1+1 AC), or Dual -48VDC (1+1 DC) power supply inputs.
- Allows the users to install and maintain active/standby/duplicate customer premises data networks/data servers, without bearing the recurring $$ expense of leasing additional expensive E3 lines from the telephone company.
- Automatically switches the E3 link from the Telephone Company between the "active" and "standby" E3 equipment at the customer premises, according to the customer-defined criterion.
- Improves equipment and data security.
- Allows the user to co-locate the "backup / standby" equipment in a different room/building and prevent any data loss arising out of conditions of natural calamity such as fire, flooding etc.
- Increases the reliability of the customer's data/IT networks without having to bear the recurring and additional cost of leasing additional E3 lines from the telephone company. The equipment may be used to create secondary/backup systems at the customer premises to provide virtually uninterrupted service.
Application Note
- The E3 Fail-Over Switch should be used when the customer is using a single E3 line and install "active" E3 equipment and "standby" E3 equipment (such as a ROUTER) at the customers premises. The E3 Failover Switch shall automatically switch the E3 line from the telephone company between the ACTIVE E3 data server / router and the STANDBY E3 data server / router. Should the ACTIVE E3 data server / router fail or be removed from service, the E3 line from the telephone company automatically switches to the STANDBY E3 data server / router without requiring any customer or user intervention.
E3 Switching Parameter
| Loss Of E3 Signal (LOS) | The Loss of Signal condition in a E3 may occur due to:
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| Number of E3 Interfaces - Telco | 1 (in one E3 line version) 2 (in two E3 line version) |
| Number of E3 Interfaces – Equipment | 2 (in one E3 line version) 4 (in two E3 line version) |
| Bit rate | 44.736 Mbps |
| Bit rate tolerance | ± 20ppm |
| Line code | B3ZS |
| Framing | Transparent (M-13 and C-Bit supported) |
| Pulse shape | Meets ANSI T1.102-1993 and Bellcore GR-499-CORE |
| Connectors | BNC, Co-axial Un-balanced |
| Impedance | 75 Ohms |
| Signal level to declare loss of signal condition | < 20mV |
| Signal level to clear loss of signal condition | > 90mV |
| Output voltage of AC Adapter | 100 - 240V AC |
| Range of input AC voltage | 100 V to 240 V AC, 50Hz / 60Hz. |
| System Input voltage | 7.5V DC to 9.0V DC, DC input polarity protection. |
| Maximum full load output current | 2.5 A at 7.5V DC/9.0V DC |
| Power consumption | 14 watts |
| Input voltage reversal protection | Provided in the Card |
| Efficiency at full load | >86% |
| Feed connectors | Dual Feed - 2 AC Inputs |
| Power supply | -48V DC (-40V DC to -60V DC) |
| Input voltage reversal protection | Provided in the Card |
| Power supply | 1+1 Protected Inputs |
| Power consumption | 14 watts |
| Feed connectors | Dual Feed - 2 DC Inputs |
Command Language
- Command Line Interface (English text commands)
System Management and Access
- Windows XP and Windows 7 compatible Graphical User Interface (GUI)
- Telnet - CLI (Command Line Interface)
Monitoring and Control
- Serial Management Port - RS232 interface (COM Port)
- 10/100BaseT for remote management over a LAN / TCP/IP network.
| Network Interface | RJ-45 Ethernet 10BaseT or 100BaseT-TX (auto sensing) |
| Compatibility | Ethernet Version 2.0 IEEE802.3 |
| Protocols Supported | ARP, UDP/IP, TCP/IP, Telnet, ICMP, SNMP, DHCP, BOOTP, TFTP, Auto IP, SMTP and HTTP |
| LEDs | 10Base-T and 100Base-TX Activity, full/half duplex |
| Management | Internal web server, SNMP (read only), Serial login, Telnet login |
EMI Compliance
- Radiated and conducted emissions - complies with Class B limits of EN55022:1998
- Direct and Indirect ESD - complies with EN55024:1998
- RF Electromagnetic Field Immunity - complies with EN55024:1998
- Electrical Fast Transient/Burst Immunity - complies with EN55024:1998
- Power Frequency Magnetic Field Immunity - complies with EN55024:1998
- RF Common Mode Conducted Susceptibility - complies with EN55024:1998
Clock
- Synchronized to network.
Chassis
- 1U High (44 mm.)
- 19-inch rack-mounting shelf
Compliance/Regulatory
- Meets CE requirements
- Complies with FCC Part 68 and EMC FCC Part 15 Class 2
- Safety - ULI 1459 Issue 2
- Operation ETS 300 019 Class 3.2
- Storage ETS 300 019 Class 1.2
- Transportation ETS 300 019 Class 2.3
Application #1: Telco E3 Line Connected to Equipment - A
Upon failure of Equipment - A, the E3 Telco line automatically switches to standby Equipment - B.
Application #3: Equipment - A recovers - Telco E3 automatically switches to Equipment - A
Application #2: Equipment - A Fails - Telco E3 automatically switches to Equipment - B
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