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VCL-SafeCommTM, 8 E1 Links (24 E1 Ports)      (1+1 Automatic Protection Switch)

Product Description


Orion Telecom Networks Inc. offers the VCL-SafeComm, 8 E1 Links (24 E1 Ports), 1+1 Automatic Protection Switching (APS) Equipment may be used to protect upto 8 E1 Links (24 E1 Ports), and provide an alternate communication route to each E1 Link between any two E1 points.

In the event of the failure of the primary (Main) E1 communication route, the VCL-SafeComm, 8 E1 Links (1+1 Automatic Protection Switching Equipment) automatically switches the E1 traffic to a secondary (standby) E1 route. The VCL-SafeComm, 8 E1, 1+1 Automatic Protection Switching equipment is available in a 2U high chassis which may be mounted in any DIN standard,19-Inch rack.

This product allows the user to design 1+1 (protected) redundant E1 routes on similar (fiber-fiber), or complementing (fiber-radio) transmission mediums.

The criterion for switching between the primary (main) and the secondary (protected/standby) routes is user programmable.

Criterion for switching between the primary (main) and the secondary (protected/standby) routes may be Loss-Of-Signal on E1 links, or AIS (All-Ones AIS alarm) condition.

The criterion for switching time and recovery time between the primary (main) and the secondary (protected/standby) routes is user programmable (10ms to 3000ms).

E1 recovery switching time from Standby Link to Main Link is also user programmable from 10ms to 9999ms. Data transported on the E1 Links is transparent and protocol independent.

Salient Features:

  • VCL-SafeComm 1+1 Protection Switch does not "add" a point-of-failure to the E1 network.

  • Even in the event that the power to the VCL-SafeComm 1+1 Protection Switch (or the equipment itself) fails, the E1 link connectivity shall be "always" maintained. The E1 link integrity is ALWAYS maintained (the switch reverts the connection to the primary E1 link), even if the power to the equipment is disconnected and removed. This ensures that the E1 link connectivity is never lost.

  • VCL-SafeComm 1+1 Protection Switch provides two power inputs and this allows the user to connect the switch to two separate independent - 48V DC power sources to minimize the chances of any power failure occurring due to power outage.

Modes of Operation:

There are three modes in which the VCL-SafeComm E1, 1+1 Automatic Protection Switch can be configured to operate in:

AUTOMATIC SWITCHING MODE:

  • The VCL-SafeComm E1, 1+1 Automatic Protection Switch can be configured to operate in an AUTOMATIC SWITCHING MODE. In the automatic mode, the switch shall automatically switch and re-route the E1 circuits from the MAIN route to the STANDBY route if there is an AIS or a LOS (LOSS OF SIGNAL) alarm, on the MAIN E1 link route.

    Similarly, in the automatic mode the switch shall automatically switch back and re-route the E1 circuits from the STANDBY route to the MAIN route upon the restoration of the service on the MAIN E1 link route.

    All switching parameters and link restoration parameters are user programmable.

EXTERNAL TRIGGER SWITCHING MODE:

  • Sometimes the user wants to switch the E1 circuits between the MAIN route and the STANDBY route when some external event occurs. In the EXTERNAL TRIGGER MODE the user can switch between the MAIN E1 route and the STANDBY E1 route when an external trigger (such as an closed/opened physical contact) is applied to the switch. This feature was added to make it compatible with certain radios equipment suppliers, where they apply an external trigger to switch and re-route the E1 circuits between their main E1 radios and standby E1 radios.

MANUAL SWITCHING MODE:

  • In Manual Switching Mode, the user shall use manual Telnet commands to switch the E1 circuits between the MAIN route and the STANDBY route, manually, using Telnet commands. In this mode the AUTOMATIC MODE and the EXTERNAL TRIGGER MODE are both disabled and the manual commands over ride all other modes.

Applications

Providing 1+1 alternate paths between any two Transmission mediums (active+standby). e.g:

  • Fiber/Fiber
  • Radio/Fiber
  • Radio/HDSL
  • Fiber/HDSL etc.

Example: The user may deploy the VCL-SafeComm, 8 E1, 1+1 Automatic Protection Switching Equipment to provide an alternate communication route between an optical fiber link and a radio link between any two points. In the event of the failure of the primary (optical fiber) link the E1 is automatically switched to the alternate route over the E1 radio, thus ensuring maximum uptime on all such 1+1 protected E1 Links.

Once the primary (optical fiber) E1 Link on the optical fiber is restored, the                 VCL-SafeComm, 8 E1, 1+1 Automatic Protection Switching Equipment automatically restores the communication to the primary (optical fiber) E1 Link. The switching and restoration criterion is user programmable.

Applications Diagrams


 

Features & Highlights

  • High density protection switching equipment (upto 8 E1 Links i.e. 24 E1 Ports)

  • To provide an independent point-to-point, protected E1 Link between two "E1 USER PORTS" on similar (example fiber-fiber), or dis-similar (fiber-radio) mediums

  • To provide 1+1 E1 redundancy support to higher order multiplexers e.g. E2, E3

  • System configuration and management interface through "CLI" text based commands and GUI (Graphical User Interface)

  • Transport A-bis Interface on redundant E1 links

  • Provide 1+1 Protection Routing / Path between BSC and BTS

  • These ensure that mission critical voice, data, control and management traffic are properly supported and maintained even during E1 backhaul facility outages. When the primary (working) link fails, the E1 traffic is automatically switched to the standby (secondary) link to ensure maximum uptime

  • Through the comprehensive remote configuration and alarm management capabilities of the VCL-SafeComm, 8 E1, 1+1 Automatic Protection Switching Equipment the product may be used to improve network reliability and control

  • Traffic Protection

  • Alternate Facility Advantages

  • Service Differentiation Agreements

  • Increased Network Reliability Resilience

  • Media and Path Diversity

  • Remote Management

  • Alarm logging and monitoring.

Benefits

  • Customer Relations
  • Competitive
  • Service Level
  • Back-haul Network
  • Technology Migration
  • User Programmable 1+1 Protection Parameters:
    • Loss of Signal
    • AIS (All Ones Alarm)

Security and Password Features

System Access, Control and Management Options: 

         Telnet

         SSH

         CLI Control Interface (HyperTerminal or VT100)

         SNMP V2 Traps (MIB File provided)

         Windows based GUI (Graphical User Interface) for easy configuration, management and access. Ability to monitor multiple units from a single NMS.

 OAM: Operation and Management Ports 

         RS232 Serial Port

         USB COM Port

         10/100BaseT Ethernet for remote access. 

Security and Protection 

         Secured Access via SSH V2

         Password Protection: Password Protection in compliance with the mandatory clauses of the GR-815-CORE-2 specifications for secured access control.

         Logging: Maintains a log of all successful and un-successful attempts.

         Logged information includes the ID and the IP address of the accessing entities.

         Alerts the administrator if the un-successful logging attempts exceed three.

         Security Audit: All access logs for up to 30 days are maintained for security audit purposes.

         Security log entry of any request or activity including that user-ID (including IP address, if applicable), to establish user accountability

         Report Generation / Audit Trail

         Security Administration. 

Management and Monitoring 

         RS232 serial, USB serial interfaces for local terminal access.

         10/100BaseT Ethernet Interface for remote access over an IP network.

         Encrypted Password Protection.

         Telnet Remote access over IP links.

         SSH Secured remote access using Secure Shell Protocol over IP links.

         SNMP Traps and NMS for real time remote monitoring and management over an IP network.

         Automatic Link Test feature link testing at user programmable periodical intervals.

         Visual I/O status LED Display.

Others Links

Technical specifications are subject to change without notice.
All brand names and trademarks are the property of their respective owners.

 

VCL-SafeComm, 8 E1 Links  (24 E1 Ports) -Product Brochure (PDF 326KB)

VCL-SafeComm, 8 E1 Links  (24 E1 Ports) Presentation PPS (124 KB)
VCL-SafeComm, 8 T1 Links  (24 E1 Ports)
VCL-SafeComm, 16 E1 Links  (48 E1 Ports)
VCL-SafeComm, 16 T1 Links  (48 T1 Ports)
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::   Application Diagram  ::
 
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Orion Telecom Networks, Inc.
16810, Avenue of the Fountains,
Suite # 108, Fountain Hills, AZ 85268 U.S.A.
Phone: +1 480-816-8672,  Fax: +1 480-816-0115
E-mail: sales@oriontelecom.com
Web Site: http://www.oriontelecom.com