The VCL100MC-1 STM-1 (upto 63 E1)
with E3, DS3, 10/100BaseT Ethernet interfaces is a compact,
modular and cost effective STM-1 SDH multiplexer equipment
designed to manage bandwidth and provide E1 or fractional E1,
voice and data access service over STM Networks.
The system has two STM-1 optical / electrical interfaces in the
aggregate side and allows for upto 3 tributary add-on cards. The
following tributaries are available as add-on cards for the
chassis:
- E1
- E3/DS3
tributaries (software configurable as E3 or DS3)
- 10/100Base-T
Ethernet (IEEE 802.3)
- STM-1o
- STM-1e/140Mbps
tributary interfaces (software configurable)
Additionally it provides a single
10/100Base-T Ethernet port, which can be mapped to one VC-12
bandwidth towards the aggregate side. This feature does not use
any tributary slot and hence can supplement E1/DS1/E3/DS3
customers requiring a single Ethernet interface. This Ethernet
interface on the base card is optional.
VCL100MC-1 Network Element Software (NES)
The VCL100MC-1 node is managed
through the embedded (Network Element Software). The main
capabilities are listed below:
- Switch over to
redundant power supply in the event of any hardware fault
- Auto Recovery
after Input Power Failure in a redundant system
- Node-wise
Operations & Maintenance
- User
programmable severity levels for Alarms
- Node-wise
Alarming & Remote Login
- Performance
monitoring as per the standard specifications (G.826)
- In-service
monitoring of E1 tributaries
A standard Network Element
Software (NES) starter package enables all of the above.
User can access and control all of the above-mentioned features
using a standard Hyper Text Transfer Protocol (HTTP) based web
browser. The Ethernet interface on the base chassis is to be
used as the physical data connection for this purpose. The NES
also allows users to control remote nodes using the web browser
interface. For this purpose Bhumika uses SDH DCC bytes for
carrying the management information to the remote node.
To provide network wide
management and control of VCL100MC-1 nodes through industry
standard Network Management Systems, users can enable the Simple
Network Management Protocol interface software module (NES-SNMP).
This module provides open interfaces which can be also be used
by Network Management System (NMS) which is described later in
this document.
The (NES) point-and-click provisioning tool (PNCP) is a set of
software modules that enables customers to provision end-end
circuits is a network that comprises all Bhumika family of SDH
products. Users can enable this feature using the node-resident
software module NES-NODE-PNCP, and the server-resident software
module NES-HOST-PNCP.
Network
Management System
The STM-1 / STM-4 provides
support for centralized network management through Network
Management System (NMS).
Operations Interfaces
- 10/100 Mbps
half-duplex LAN interface for NMS data connection to
VCL100MC-1 node (RJ45 connector).
- RS232C Craft
interface for local Command Line Interface data connection.
- 2 wire analog
telephone interface for Engineering Order Wire (E1 or E2 bytes
access) with omnibus calling.
Related Links
